INSTRUCTION MANUAL
FOR
" SENIOR "
MILLING MACHINES
M/ce Serial No.
-----------------------------
Manufactured by:-
TOM SENIOR
( Liversedge ) Ltd.
Atlas Works
Liversedge
Yorkshire
ENGLAND
( Defunct )
SECTION 2 INSTALLATION
SECTION 3 OPERATING
INSTRUCTIONS
SECTION 4 MACHINE
MAINTENANCE
SECTION 5 ATTACHMENTS
SECTION 6
POINTS FOR GUIDANCE & LUBRICATION
SECTION 7 ADDITIONAL INFORMATION
'S'
TYPE VERTICAL HEAD
SECTION 8 PARTS
LIST
SECTION 9 GENERAL
& SECTION DRAWINGS
SECTION 10 S
TYPE HEAD PARTS LIST
SECTION 11 S
TYPE HEAD SECTION DRAWINGS
APPENDIX I CUTTER
SPEEDS & FEEDS
This Instruction Manual
has been prepared as a guide to the users of the 'SENIOR' range of precision
milling machines and attachments. It is not intended as an exhaustive treatise
of the subject and should not be taken to constitute a specification.
The machines covered by
this publication are as follows:-
'M.1'
Horizontal Milling Machine.
'Major' Horizontal
Milling Machine.
'E.L.7.' Horizontal
Milling Machine.
'V.S.' Horizontal
Milling Machine.
'Junior' Milling
Machine.
'Universal' Horizontal
Swivel Table Milling Machine.
Hand Lever Operated Horizontal
Milling Machine.
Light Vertical Type 'S'
Type Milling Machine.
The following accessories are also covered by this
Manual:-
Sliding Spindle Vertical Attachment.
Rotary Tables.
Dividing Heads.
Vice.
Standard Vertical Attachment.
The 'SENIOR' range of milling machines utilise a basic
range of proven components and the instructions given in this publication are
applicable to all the Types listed above except where stated in the text.
Mark I Machines
cover top mounted Motors.
Mark II
Machines cover Motors housed in the base.
SECTION 1 DESCRIPTION
"SENIOR"
Milling Machines utilise a basic range of standard components and the
information contained in this
section is applicable to all machines unless otherwise
stated.
Machine Base
The
machine base is a sturdy steel fabrication with an integral coolant tank of 2 ½
gallons capacity. Access for filling purposes is gained through two gauze
covered holes in the coolant tray that is bolted to the top of the base. The
coolant drain pipe is normally closed by a screw cap. A raising screw flange
and nut assembly are bolted to the tray and the screw extends through the tray
and the coolant tank into the base via a steel tube. In Mark II machines, the
base unit also houses the drive motor.
Transmission
System
With the exception of
the 'Hand Lever' Vertical and Universal model, all machines are supplied with
twelve spindle speeds and three table traverse rates for each speed. The 'Hand
Lever' model has six spindle speeds and is not fitted with powered table feed.
The basic drive path, in all machines, is from an a.c. motor by vee-belt to a
counter-shaft; then by a second vee-belt to the spindle. Provision is made to
interpose a backgear cluster in the spindle drive of twelve-speed machines and
the table feed drive is taken from the rear end of the spindle. Precise drive
details differ according to model and mark as described in the following
paragraphs:-
Countershaft Drive (Mark I Machines)
A motor is mounted on top of the main column. Primary reduction speeds are obtained by a three-step pulley on the motor spindle driving a three-step pulley on the countershaft. A second belt transmits the drive from a pulley on the countershaft down to the coolant pump. This is a vee-belt. Access to the drive is gained by opening the door on the rear face of the main column.
Countershaft Drive (Mark II Machines)
The drive motor is
mounted on a hinged base-plate and a lever actuated cam mechanism locks the
plate in the horizontal position. When the cam is released, the plate hinges
upward to relax the belt tension for speed changing. Primary reduction and
three speeds are obtained by a three-step pulley on the motor spindle driving a
three-step pulley on the countershaft. The coolant pump is housed within the
main column in Mark II machines, the drive pulley being mounted on the inner
end of the countershaft.
Transmission System (Cont'd)
Spindle Drive
(12 Speed Machines)
The
countershaft extends into the main column being supported in the column rear
member by an eccentric bush and housing mounted on ball bearings. The inner end
of the countershaft carries a two-step pulley. From the selected pulley a
vee-belt transmits the drive to the corresponding pulley on the spindle. The
spindle pulleys form an integral part of a cone that is carried on the spindle
by bushes. It is, therefore, free to idle about the spindle. A gear wheel is
positioned adjacent to the cone and located on the spindle by a key. The cone
and gear can be locked together, by a spring loaded pin, to provide a direct
drive from pulley to spindle.
Alternatively,
the power can be transmitted through a back gear which is carried by phosphor
bronze bushes on the back gear shaft. The back gear may be moved to engage the
spindle gear and the spindle cone gear. When the back gear is in mesh, the
spring loaded locking pin must be disengaged to uncouple the cone gear and the
spindle gear wheel. In this configuration the drive passes from the selected
cone pulley, through the cone gear to the back gear, thence to the spindle gear
and spindle.
A
back gear selector provides the means of locating the back gear in the meshed
or unmeshed positions. With the exception of the 'Junior' model, the back gear
on all machines is moved axially to engage or disengage the spindle gears. The
selector mechanism comprises a selector fork, that engages the back gear, and a
spring loaded plunger which engages alternative locations in the back gear
shaft. When the plunger is disengaged, the selector can be moved to position
the back gear at the alternative location by sliding.
In
the 'Junior' model, the back gear is carried in an eccentric bush in the wall
of the column. This can be rotated by turning a knurled knob in the primary
drive enclosure, to swing the back gear out of mesh. The knob is located in
both the engaged and disengaged positions by a spring loaded locking pin
engaging alternative locations in the column back face.
Table
Feed Drive (Powered Table
Machines)
The
spindle is supported in the column by two precision taper roller bearings. It
extends the drive forward to the cutter arbor and rearward into the enclosure
on the rear face of the main column. From the pulley mounted on the rear end of
the spindle, the power is transmitted to the table traverse gear box pulley by a
single vee-belt. A belt tensioning jockey wheel and pulley arrangement is
included in this drive.
The
table traverse gear box has three ratios selected by the hand lever positioned
on the gear box lid. This lever is positioned at each of the three positions -
LOW, HIGH and MEDIUM - marked on the lid. Within the gear box are two shafts.
The driver shaft carrying a triple cluster of straight spur gears and the
driven shaft that carries three suitably spaced driven gears, mounted on a
layshaft. The gear box operates on the sliding mesh principle in which the
driver gear cluster is moved axially along its shaft to engage the
corresponding driven gear.
Transmission
System (Cont'd)
A
universal ball joint connects the gear box driven shaft to a telescopic shaft housed
in a protective tube. The telescopic shaft extends the drive to the table
traverse worm mechanism through the medium of a second universal ball joint.
Hand
Lever Model
In
this model, only six spindle speeds are obtainable.
Work
Head.
Alternative types of
overarm supports may be supplied. A round bar that extends through the column
or a box type vee slide. The cutter arbor is fitted with a hardened running
bush which is a precise fit in the arbor support bracket. This bracket is
fitted with an adjustable spacer (not all models).
Table.
The table has three dead
size ½” tee-slots for work piece location. It traverses on an inverted vee-form
slide in the saddle, the limits of movement being determined by two dogs
working in conjunction with a knock-off lever and a dead stop. The positional
relationship of these components can be varied, by moving the dogs in a slot in
the table front, to establish the working traverse of the table.
In powered table
machines, the gear box output terminates in a worm on the telescopic shaft.
This worm is located in the saddle assembly and it meshes with a gunmetal worm
wheel which extends the drive through 90 Degs to the table feed
screw. Alternative hand feed is provided by a ball handle when the power feed
is disengaged by the dog clutch in the saddle assembly.
Saddle Assembly.
In all machines except
the 'Universal' model, the saddle traverses along inverted vee's on the knee
with the hand feed forming an integral part of the knee assembly. The saddle
houses the gunmetal table feed nut, table feed worm wheel and the knock-off dog
clutch. These components are lubricated from a well in the saddle to form an
oil bath. A level sight glass is fitted to the saddle front face.
The dog clutch is actuated by a knock-off lever located in the saddle
front face. This lever may be operated by hand, using the knob provided, or
automatically by the table right-hand dog at the pre-set limit of effective
traverse.
A retractable dead-stop
is also fitted to the saddle. This is used in conjunction with the table
left-hand stop to provide a positive positional reference when cutting blind
slots, i.e. channels, keyways, etc. The dead-stop is normally locked in the
down position by a knurled locking screw.
Saddle Assembly ( Cont’d )
Positioned adjacent to
the Oil level glass, a clamping lever provides the means of locking the table.
A saddle clamp lever is positioned on the left-hand end of the saddle.
'Universal' machines are fitted with two saddles comprising an upper and a
lower component. The lower member traverses along an inverted vee on the knee.
A centrally disposed spigot on the upper member locates in the lower component
permitting a swivelling motion whilst restraining axial movement.
Knee Assembly.
The knee bracket
encloses the saddle feed nut together with the knee raising mechanism. An
inverted vee slide guides the knee on the main column, adjustable gibs being
provided to compensate for wear. The gibs are adjusted by screws.
The saddle feed screw
extends into the knee bracket to engage the tee nut which is fastened to the
saddle.
From its hand wheel, the
raising shaft extends to a bevel pinion fitted to its innermost end. This
pinion transmits the drive through 90 Degs to a bevel wheel keyed to
the raising screw. The upper end of the raising screw is supported by a bush.
The raising: screw engages the raising nut which is screwed to the gland. A
knee clamping lever is positioned on the left hand side of the knee bracket.
Hand Drive Calibration.
Micrometer collars are
fitted to all lead screws.
Coolant System.
The coolant pump is an
eccentric vane type with belt drive from the countershaft.
Rigid inlet and outlet
pipes are fitted, the former extending downwards into the coolant tank. A ball
valve returns excess coolant back to the tank and relieves pressure when the
coolant supply cock is closed. The supply is extended to the cutter head
through a flexible pipe.
Motor & Electrical
Equipment
The standard system
provides a three-phase drive motor with a pushbutton starter. This incorporates
a thermal overload and a 'no-volt' release. Alternative single-phase systems
may be fitted in compliance with special orders.
Electrical Connections.
The
machine internal wiring is complete. An isolator is fitted to the base of the
machine and this should be connected to the mains supply in accordance with the
relevant standard codes and practices.
SECTION
2 INSTALLATION
On Receipt
When the machine is
received, carefully remove the crate and/or protective covers. Inspect for
damage caused in transit and report any discrepancies to the Carriers and to
Supplier concerned within five days.
Slinging
Place the sling around
the overarm bar using packing as required to prevent damage to the machine
finish. Ensure that the lifting equipment is rated to accommodate the machine
weight as listed in Section 1, “ MACHINE DATA “.
Positioning and
Levelling
The foundation
requirements are not critical but the base should be flat and of adequate load
bearing capacity. Do not move the machine by exerting force on the workhead,
table or saddle. These are precision assemblies that could be distorted by
incorrect handling. Push or pull the machine base or the coolant tray.
Carefully level the
machine, with the aid of a spirit level placed longitudinally, and then
laterally, on the table. Use wedges of wood or soft metal to achieve the
correct level. It is preferable, but not essential, to float in grout or use
cushion pads to make up the level. Securely bolt the machine to the foundation
using rawlbolts.
Cleaning
Prior
to despatch, the exposed unpainted surfaces of the machine are covered with a
protective coating to retard corrosion. Do not disturb any moving parts until
these surfaces are scrupulously clean. The coating may be removed by lint-free wipers
soaked in a liquid solvent such as paraffin or white spirit.
SECTION 3
OPERATING INSTRUCTIONS
Controls
1. Start/Stop
Pushbuttons. Coloured Green and Red respectively.
2. Table Feed Gear Lever (Gear Box).
Can be set at any one of three positions: HIGH, MEDIUM
or LOW.
Caution Do not attempt
to change gear unless the machine is stationary.
3. Table Traverse Ball Handle.
Provides hand traverse motion when the knock-off lever
is in the 'clutch
disengaged' position.
4. Right Hand Dog.
Determines
the limit of powered table traverse by actuating the knock-off lever to
disengage the feed.
5. Table Clamp Lever.
Locks the table against motion.
6. Knock-off Lever.
Actuates
the dog clutch in the table feed mechanism. Move to the left to disengage the
clutch for hand feed; move to the right for power feed.
7. Saddle Traverse Hand Wheel.
Provides the saddle traverse motion.
8. Knee Raising Hand Wheel.
Provides the vertical motion.
9. Left Hand Dog.
Used
in conjunction with the Dead Stop to provide a position positional reference
when cutting keyways, etc.
10. Dead Stop.
In
the raised position it is used in conjunction with the Left Hand Dog. For
straight milling operations, the stop is retracted.
11. Coolant
Cock.
Controls the coolant flow to the cutting head.
12. Cutter Arbor Draw Bar.
Remove draw bar from spindle to facilitate removal of
the arbor.
13. Saddle Clamp Lever.
Locks the saddle against motion.
14. Knee Clamp Lever. Locks the knee (against
vertical movement).
Initial Start Preparations
Before attempting to
start the machine for the first time after installation, carry out the
following operations. Refer to Section 4 for details of procedure and for
lubricant recommendations.
1. Lubricate
the machine at all specified points.
2. Fill
the table traverse worm box and the table drive gear box (if fitted) with oil
of the approved grade.
3. Check
all belt drives for correct tension and adjust as necessary.
4. Check
all hand feed motions for freedom of operation.
5. Fill
the coolant tank with approved lubricant,
6. If coolant is to be used, prime the pump
if necessary. If coolant is not being used, it is recommended that the pump
drive belt be removed.
7. Start
the machine and check the direction of spindle rotation. This MUST be
anti-clockwise. If the rotation is clockwise stop the machine, isolate the
electrical supply and check the connections to the starter. If the machine is
fitted for 3-phase supply, change any two wires in the starter. For single
phase supply, change two wires in the motor.
1. Before
starting the machine at any time, ensure that the daily lubrication procedure -
detailed in Section 4 - has been carried out.
Caution It is
important to ensure that the spindle cone pulley bush is adequately lubricated
at all times. This is vital to the prevention of bush damage, particularly
during the 'running in' period.
2. If
coolant is required, ensure that the pump is primed and the pump drive belt
fitted.
3. Ensure that the selected cutter is correctly
fitted to the arbor and the draw bar tight. To fit a cutter or cutters, proceed
as follows:-
Operation.
To promote a long and
trouble-free lift, it is recommended that the machine is operated at low load,
i.e. light cuts; and at medium speeds for an initial 'running-in' period.
Overloading is
particularly damaging to a new machine and could cause overheating, with
serious damage to the bearings.
Changing Spindle Speed.
There are two methods of
changing spindle speed:-
1. To re-position the countershaft drive belt;
three speeds are available.
2. To re-position the spindle drive belt; two
speeds are available.
SECTION 4. MACHINE
MAINTENANCE
Lubrication Schedule.
Regular attention to
lubrication is essential for efficient operation and long machine life. Use
good quality lubricants, preferably selected from the table appended to this
Section. If the machine is not in continuous or daily use, carry out the checks
detailed under 'Daily' before using the machine.
Daily.
1. Lubricate
the spindle cone pulley bushes by removing the grub screw in the rim of the
pulley and freely apply fresh oil using the oil can. Replace the grub screw and
carefully wipe excess oil from the cone pulley to prevent contamination of the
driving belt.
2. Oil
the back gear bushes through the oiler in the gear shank. Carefully remove
surplus oil from around the oiler.
3. Through
the sight glass, check the oil level in the table traverse feed oil bath. If
necessary restore to the centre mark on the glass, by filling above the cover
plate fitted on the right hand side of the saddle.
4. If
a table traverse gear box is fitted, check the oil level with the dip-stick. If
necessary restore the level to the mark on the dip-stick. The filler cap is
positioned on top of the gear box.
3. Oil
the arbor bearing through the oiler located in the arbor support bracket.
6. Lubricate
the table lead screw through the Springwell Oiler in the end brackets.
7. Oil
the saddle traverse screw through the Springwell Oiler in the screw gland.
8. Lubricate
the raising screw through the Springwell Oiler in the side of the knee bracket.
9. Oil
the raising screw shaft through the Springwell Oiler in the boss.
Weekly.
1. Thoroughly
clean the machine exterior to remove old cutting oil, dust and dirty lubricant.
Give particular attention to the slideways and lightly coat with fresh oil
after cleaning.
Six Monthly.
1. Remove
the end cover on each spindle bearing and repack the bearings with grease of
suitable grade, if necessary. Grease the Vertical Head.
2. Release
the screw on each spigot end of the telescopic tube enclosing the table feed
universal joints. If necessary, slide back each cover tube and pack the
universal joints with fresh grease.
3. Lightly
lubricate the Oilite Bushes in the Gear Box mitre jockey pulley (or sprockets),
applying an oil can to the lubricators fitted in the end of the bearing
spindles.
Routine Adjustments.
Drive Belts
(Mark I Machines).
The motor drive belt is
tensioned by adjusting the four mounting screws under the motor base. To
tension the internal vee-belt, unscrew the clamping screw in the countershaft
tension bracket and rotate the bracket on the eccentric bush to eliminate all
belt slackness. Securely tighten the clamping screw.
Drive Belts
(Mark II Machines).
To adjust the
countershaft drive belt tension proceed as follows :-Remove the louvered cover
from the back of the base unit. Adjust the
screw beneath the cam on
the motor base plate until all slackness is removed. Replace the cover.
CAUTION ; Do not
overtighten vee-belts as this will overload the countershaft and/or spindle
bearings.
The belts are correctly
adjusted prior to despatch from the Works and should not require attention for
a considerable period of time until 'stretch' becomes evident. When a
replacement internal Vee-Belt is required, we recommend the fitting of a
'Brammer' link belt which we can supply at the correct length. The link type
belt can be placed around the pulleys and connected without disturbing the spindle
assembly and its housing.
Coolant Pump Drive Belt.
The coolant pump swivels
on the mounting stud, and its weight is sufficient to keep the vee-belt at the
correct tension.
Spindle Bearing
Adjustment.
Wear is taken up by the
split lock-nut at the rear end of the spindle. Access is gained by removing the
rear bearing cover. To adjust the bearings, lightly turn the split lock-nut
anti-clockwise until excessive play is removed.
CAUTION Care must be taken not to overtighten the split
lock-nut otherwise over-heating and bearing failure could occur.
Overarm Support Bracket
Adjustment.
The
overarm support bracket is fitted with a-spacer that may be ground down to
compensate for wear.
SECTION
5. ATTACHMENTS.
Vertical Sliding;
Spindle.
This attachment
comprises a fractional horsepower motor driving the vertical spindle, which is
mounted in taper roller bearings, through the medium of a vee-belt on two
four-step pulleys. The complete assembly is mounted on a dove-tailed backplate
that is attached to the column face by a locking strip. Spindle movement is by
hand-lever or by worm gear with the collar calibrated in Imperial , Metric
graduations, or dual reading dials.
Fitting the Attachment.
Remove the cutter arbor, the Overarm Bracket, Overarm and slide
the attachment backplate on to one angle of the column face above the spindle
cover plate. The radius on the bottom edge of the backplate fits on, or
adjacent to, the cover plate. Insert the strip and secure. Plug the power
supply into the socket on the starter box.
The Attachment weighs 79 lbs. (37 kg.) approximately.
Changing Speeds.
Remove the two side doors from the pulley housing.
Slacken the motor plate retaining nut on top of the housing to relax the belt
tension and re-position the belt on the selected pulleys. Adjust the belt
tension by tightening the motor plate retaining screws. Re-fit the side plates.
Lubrication.
Before using the machine each time, apply an oil can
to the Springwell Oilers.
Spindle
Driven Vertical Head
The
Senior Vertical Head is a self contained unit that requires little or no
maintenance. It is fitted in place of the Horizontal Arbour and is driven off
the main spindle at the same speed ( rpm). It may be rotated thro’ 180 degs if
required and is fitted with a No.2 Morse taper. All adjustments MUST be made
with the M/ce switched off.
Fitting the Attachment.
Remove the Overarm Bracket & the Overarm. ( If
fitted ) Remove the three blanking screws at 2,6 & 10 o’clock on the front
bearing cover.
Securely mount the Vertical Head Division Ring with 3
socket head cap screws and mount the Vertical Head onto the ring with the 2 Tee
bolts. Lock at the desired angle ( usually vertical ) with the 2 nuts. It is
important to ensure that the driving dog on the head locates properly with the
arbour dogs on the main spindle before tightening or damage will occur. The
head is No.2 Morse Taper and a suitable cutter holder is required. Clarkson
etc.
The use of a drawbar to secure the cutter holder is mandatory.
In order to increase the available daylight between
the cutter and the table, particularly when a vice is being used, a low
profile ER type collet chuck is
advised.
A spacer ring and drive extender are available to
increase the throat depth,
ie: cutter to vertical slide face.
Rotary Tables.
Rotary Tables are
supplied in 6, 8 and 12 inch diameter sizes. The table is driven by a hardened
worm fitted with ball thrust bearings to accommodate axial load in both
directions. The worm mechanism is a throw-out type operated by a quick action
cam. The hardened centre bush has a ½” inch hole, but this may vary to special
requirements.
Fitting the
Table.
Before attempting to operate the attachment, ensure
that the worm is in complete mesh with the worm wheel. This can be checked by
'feeling' the backlash which should be minimal.
Spindle
Bearing Adjustment.
Wear is taken up by the split lock-nut at the rear end
of the spindle. Access is gained by removing the rear bearing cover. To adjust
the bearings, lightly turn the split lock-nut anti-clockwise until excessive play is removed
CAUTION : Care must
be taken not to overtighten the split lock-nut, otherwise over-heating and
bearing failure could occur.
Overarm Support Bracket Adjustment.
The overarm support
bracket is fitted with a spacer that may be ground down to compensate for wear.
SECTION 6 POINTS
FOR GUIDANCE IN OPERATION
OF THE "SENIOR" MILLING
MACHINES
Bearings.
These are Taper Roller
and wear is taken up by the split lock-nut at the rear end of spindle. Access
to this is gained by removing the rear bearing cover. When adjustment is
necessary, all that is required will probably be a very slight anti-clockwise
movement of the nut (this is left-hand thread). Particular care must be taken
with this adjustment because, if not, over-heating and chatter could take
'place.
Periodically the
bearings will require re-packing with grease; six monthly periods should
suffice for ordinary daily use. To re-pack, it is only necessary to remove the
bearing end covers. Use only the highest grade roller bearing grease.
As recommended on the
Lubrication Chart.
Pump.
This is fitted with a
ball non-return valve in the bottom of the suction pipe, and after once priming
(by detaching the synthetic delivery pipe and inserting a few drops of oil) the
pump should require no further attention. When the pump is not in use for any
length of time it is advisable to lift off the small vee rope - this is easily
done and saves unnecessary wear on the pump.
Use reputable, soluble,
or pure cutting oil.
Gear Box.
A dip-stick is provided
for the oil level.
Belts.
The outside drive is
tensioned by adjusting the four mounting screws under Motor Base. The inside
vee rope is then adjusted by the use of the bracket which is clamped round the eccentric
bearing bush, and is located with a plunger pin fitting into the bearing
mounting. Great care should be taken as it is important this belt should not be
too tight, otherwise excessive wear is subjected on the countershaft bearing.
The belts are sent out
correctly adjusted and no further adjustment should be necessary, unless a good
deal of stretching has taken place or new belts have been fitted. When a
replacement inside vee rope is required we recommend the fitting of a
"Brammer" Link Belt, which we can supply, of correct length. This
avoids the necessity of dismantling the spindle assembly, as the link belt can
be placed round the pulleys and easily connected without any disturbance
whatsoever to the spindle mounting.
Lubricating Points.
Spindle Cone Pulley - Grub Screw in Rim. It is VITALLY IMPORTANT to
ensure that the cone pulley is well supplied with oil at all times, but
particularly during the first weeks of use.
Back Gears. Springwell Oiler in Neck.
Countershaft The Bearings are pre-packed. Check every six months,
re-pack if necessary. Use only high grade bearing grease.
Chain Sprockets. Whether your machine is fitted with chain drive or
vee rope drive to Gear Box, provision is made for lubricating jockey pulley or
sprockets, and though Oilite Bushes are fitted a dew drops of oil occasionally
are recommended. Lubricators are fitted to the end of the bearing studs.
Worm Feed Wheel. Through front of Saddle.
Knock-off Cam Springwell Oiler in centre of Shaft.
Feed Worm. Fill Oil Bath through Saddle end
Cover.
Table Feed Screw. Springwell Oiler is end brackets.
Raising Screw. Springwell Oiler in side of knee bracket.
Cross Saddle Screw. Springwell
Oiler in screw gland.
Raising Screw Shaft. Springwell
Oiler in boss.
Universal Joint for
Table Feed. Only at very rate
intervals is it necessary to pack with grease and lubricate the telescopic
shafts which the tubes protect. These can be got at by removing the saddle and
cover (2 screws) and releasing the inner tube by taking out the bearing screw
in boss of worm box.
Overarm Support Bracket. To take up wear in bearing for running bush, remove
packing and reduce thickness.
Drive to Gear Box. Chain sprocket or vee pulley studs (whichever is
fitted) have Springwell Oilers.
Cutter Arbor. This is fitted with special hardened running bush
which is a perfect fit in the overarm support bracket. Always ensure that this
running bush is in the bearing, because there is little difference in diameter
between this bush and the ordinary spacing collars. Overarm Support Bracket is
now fitted with shim block, and when it is necessary to take up wear the block
can be removed and a shim "peeled" off. To eject this should release
the cutter arbor and make withdrawal easy, after a light tap.
Regular lubrication of
all parts, particularly slideways, and cleanliness are essential to efficient,
accurate and enduring service.
All slides on the machine are made a perfect fit and locking screws are
provided for each machine movement, but if the column face is not kept
perfectly clean and oiled, the action of cutting oil and dust can set up a
resistance to free movement with troublesome results.
Spindle Driven Vertical Head. Springwell Oiler on Horizontal
bearing housing.
Annually remove end covers clean & lubricate.
The “ Senior Ml “ Miller is a
light type machine only and is not intended for rough cutting or quick heavy
removal of metal. Nevertheless, with careful set-ups, substantial cuts can be
taken with ease. To avoid chatter, always keep the work as close as possible to
the table and use a cutter not any larger in diameter than necessary.
|
LOCATION |
SHELL |
CASTROL |
BP
|
Slides, Feedscrews,General Lubrication |
Shell Vitrea Oil 33 |
Perfecto NN |
BP Energol HP30 |
|
Gear Box |
Shell Vitrea Oil 37 |
Perfecto RR |
BP Energol HP40 |
|
Spindle Bearings |
Shell Alvania Oil 3 |
Spheerol A.P.3 |
BP Energrease L.S. 3 |
|
Vertical Heads |
Shell Alvania Oil 2 |
Spheerol A.P.3 |
BP Energrease L.S. 3 |
|
Rotary Table |
Shell Alvania Oil 2 |
Spheerol A.P.3 |
BP Energrease L.S. 3 |
With Backgear
|
Without Backgear
|
50
|
329
|
86
|
537
|
104
|
642
|
136
|
845
|
169
|
1050
|
267
|
1660
|
NB. Correct for motor speed of 1420
rpm.
TABLE
FEEDS FOR “ M.1” & “ MAJOR “
MILLING MACHINES
LOW
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MEDIUM
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HIGH
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SECTION 7 ADDITIONAL INFORMATION
'S' TYPE VERTICAL HEAD
To obtain the speeds on
the Vertical Head, as shown on the Speed Chart, select the correct belt ratio
on the pulley arrangement in the head
pulley housing & and then select the high or low with the switch on the
push button control panel (Top left).
Having done this, now press the start button (top right).
The Spindle Taper is R.8
The Draw Bolt Thread is
7/16" UNF.
Coolant Pump
Coolant is by means of
an electric pump.
To Start and Stop pump,
press On-Off push button (bottom left) on push button control panel.
Table Power Feed Unit
This is standard on
"Universal" and "VS" Models, and optional on all other models.
To operate unit. Lever on front of unit should be in an
upright position, press start button
(top left) on push button control panel. Now by means of moving lever select
the direction required to travel and select required feed speed with control knob
on front of unit. For rapid feed override, press rubber covered button
alongside of neon light. Adjustable
stops are provided on front of table.
Parts List Pg. 1
|
Part
|
Description |
Part
|
Description |
|
1 |
Base |
33 |
Table Dog (Left Hand) |
|
2 |
Base Suds Drain Cock |
34 |
Table Dog (Right Hand) |
|
3 |
Suds Dish |
35 |
Table Ball Handle |
|
4 |
Suds Dish Rings |
36 |
Table Index Collar |
|
5 |
Suds Dish Drain Covers |
37 |
Table Leadscrew |
|
6 |
Suds Drain Cover Knobs |
38 |
Table Screw Lock Nuts |
|
7 |
Screws, Suds Dish to
Base |
39 |
Table Screw Gunmetal Nut |
|
8 |
Bright Turned Washers
for above |
40 |
Table Screw Thrust Washers |
|
9 |
Column |
41 |
Screws for fastening End Brackets to Table |
|
10 |
Screws for clamping
Column to Base |
42 |
Motor Platform |
|
11 |
Brt. Engineers Washers
for above |
43 |
Motor Platform Adjusting Screws |
|
12 |
Knee |
44 |
5/16" Whit hex. Nuts
for above |
|
13 |
Knee Adjusting Gib for
Column |
45 |
5/16" Brt. Washers for above |
|
14 |
Screws for above |
46 |
Rear Door |
|
15 |
Brt. Engineers washers
for above |
47 |
Rear Door Hinges |
|
16 |
Sq.Hd Adjusting Screws
for above |
48 |
Screws for fastening Hinges to door |
|
17 |
Lock Nuts for above |
49 |
Washers for above |
|
18 |
5/16" Oilers for
Knee Brkt. |
50 |
Rear Door Latch |
|
19 |
Saddle |
51 |
Knob for Rear Door Latch |
|
20 |
Saddle End Cover |
52 |
Stud for Rear Door Latch |
|
21 |
Saddle Adjusting Gib
to Knee Brkt. |
53 |
Swivel Screw for Latch |
|
22 |
Holding Screws for
above |
54 |
Washers for above |
|
23 |
Adjusting Screws for
above |
55 |
Swivel Bush for above |
|
24 |
Lock Nuts for above |
56 |
Fender |
|
25 |
Saddle Cam |
57 |
Set Screws for clamping Fender to Dish |
|
26 |
5/16" Springwell
Oiler for above |
58 |
Washers for above |
|
27 |
Saddle Cam Lever |
59 |
Overarm Bracket |
|
28 |
Saddle Cam Lever Knob |
60 |
Overarm Bush |
|
29 |
Saddle Knock-off
Plunger |
61 |
Overarm Bush stop Screw |
|
30 |
Table |
62 |
Overarm Bracket Bolt |
|
31 |
Table End Bracket (Right Hand) |
63 |
Nut for Overarm Bracket Bolt |
|
32 |
Table End Bracket (Left Hand) |
64 |
Lever for above |
|
|
|
65 |
Bakelite Knob for above |
|
|
|
|
|
|
|
|
|
|
Parts List Pg. 2
|
Part
|
Description |
Part
|
Description |
|
66 |
Overarm |
98 |
Screw for fastening Gear Box Shaft |
|
67 |
Overarm Locking Bolts |
99 |
Screws for fastening Gear Box to Column |
|
68 |
Nuts for above |
100 |
Screws, Lid to Gear Box |
|
69 |
Washers for above |
101 |
Screws, Gear Box Lever to Shaft |
|
70 |
Overarm Bolt Brass Sleeve |
102 |
Screws, Collars to Gear Box Shaft |
|
71 |
Column Door |
103 |
Stop Bar |
|
72 |
Latch for above |
104 |
Stud for above |
|
73 |
Knob for Door Latch |
105 |
Knurled Clamping Nut for locking stop bar |
|
74 |
Connecting Stud for Knob and Latch |
106 |
Inside Knockoff Cam |
|
75 |
Grub Screws for 74 to Stud |
107 |
Clamping Screw for above |
|
76 |
Column Door Hinge Blocks |
108 |
5" Handwheel for Cross Saddle Screw |
|
77 |
Studs for above |
109 |
Grip for above |
|
78 |
Washers for above |
110 |
6" Hand Wheel for Raising Screw |
|
79 |
Column Hinge Block Swivel Pins |
111 |
Hand Grip for above |
|
80 |
Gear Box |
112 |
Saddle Micrometer Collar |
|
81 |
Gear Box Lid |
113 |
Raising Screw Micrometer Collar |
|
81(J) |
Gear Box Lid Joint |
114 |
Knee Bracket Backplate for above Collar |
|
82 |
Gear Box Shaft Driver |
115 |
Knurled Screws for Collars |
|
83 |
Gear Lox Shaft Driven |
116 |
Raising Screw Bevel Pinion |
|
84 |
Gear Box Gear Driver |
117 |
Raising Screw Bevel Wheel |
|
85 |
Gear Box Gear Driven |
118 |
Cross Slide Gland |
|
86 |
Gear Box Selector |
119 |
Screws for fastening 118 to Knee Bracket |
|
87 |
Gear Box Selector Fork |
120 |
Washers for above |
|
88 |
Gear Box Oil Seal 1"o/d. 3/8" x ¼" |
121 |
Raising Screw Bottle |
|
89 |
Gear Box Oil Seal 1¼"o/d. 7/8"x ¼" |
122 |
Screws for fastening Bottle to Base |
|
90 |
Gear Box Thrust Washer |
123 |
Washers for above |
|
91 |
Gear Box Oil Cap |
124 |
Raising Screw |
|
92 |
Gear Box Oil Sight (Inside) |
125 |
Raising Screw Nut |
|
93 |
Gear Box Oil Sight (Cover) |
126 |
Screws for fastening Nut to Bottle |
|
94 |
Gear Box Oil Sight, Perspex Disc |
127 |
Raising Screw Bush |
|
95 |
Gear Box Drain Plug |
128 |
Raising Screw Thrust Washer |
|
96 |
Gear Box Selector Shaft |
129 |
Single Phase Electric Motor 1hp |
|
97 |
Gear Box Vee Rope Pulley |
130 |
Three Phase Electric Motor 1hp |
|
|
|
|
|
|
|
|
|
|
Parts list Pg. 3
|
Part
|
Description |
Part
|
Description |
|
131 |
Screws for fastening Motor to Base |
164 |
Selector Plunger |
|
132 |
Washers for above |
165 |
Plunger Cap |
|
133 |
Motor Cone Pulley |
166 |
Plunger Spring |
|
134 |
Pushbutton Starter |
167 |
Cover Cap for above |
|
135 |
Front Bearing Cover |
168 |
Screws for fastening
same to Selector |
|
136 |
Screws for attaching 135 to Column |
169 |
Back Gear selector
sleeve |
|
137 |
Rear Bearing Cover |
170 |
Screw for holding
above to Countershaft |
|
138 |
Screws for attaching 137 to Column |
171 |
Back Gear Shaft |
|
139 |
Front Taper Roller Bearing |
172 |
Suds Cock |
|
140 |
Rear Taper Roller Bearing |
173 |
Universal Suds Joint |
|
141 |
Cutter Arbor |
174 |
Bolts for above |
|
142 |
Cutter Arbor Drawbolt |
175 |
Washers for above |
|
143 |
Main Spindle |
176 |
Suds Pipe - Long |
|
144 |
Main Spindle Driving Key |
177 |
Suds Pipe - Short |
|
145 |
Main Spindle Nut |
178 |
Suds Delivery Pipe (
Pump to Cock) |
|
146 |
Clamping Screw for above |
179 |
Suds Return Pipe
(Table to Sump) |
|
147 |
Spindle Cone Pulley |
180 |
Suds Pump Body |
|
148 |
Spindle Gear Wheel |
181 |
Pump Cover |
|
149 |
Screw for locking above to Spindle |
182 |
Screws for attaching
above to Pump Body |
|
150 |
Driving Pin for engaging Cone Gear |
183 |
Pump Rotor |
|
151 |
Locating Spring for above |
184 |
Rotor Blades |
|
152 |
Screw, Spring to Gear Wheel |
185 |
Spring for above |
|
153 |
Spring Washer for above |
186 |
Pump Vee Pulley Rope |
|
154 |
Spindle Cone Lubrication Tube |
187 |
Screw for above |
|
155 |
Cover Screw for above |
188 |
Pump Suction Pipe |
|
156 |
Spindle Collar |
189 |
Valve Container for
above |
|
157 |
Screw for above |
190 |
Ball Valve for above |
|
158 |
Back Gear |
191 |
Spring for above |
|
159 |
Bronze Bushes for Back Gear |
192 |
Pump Stub Pipe for
Release Valve |
|
160 |
Back Gear Lubricator |
193 |
Release Valve Conn.
(Pump to Sump) |
|
161 |
Back Gear Selector |
194 |
Pump Delivery Outlet
Pipe |
|
162 |
Brass U-Plate for above |
195 |
Pump Swivel Stud |
|
163 |
Screw for clamping 162
to Selector |
196 |
Collars for above |
|
|
|
197 |
Screws for above |
|
Part
|
Description |
Part
|
Description |
|
198 |
Suds Drain Cover for Table |
228 |
Screws for fastening Key to Worm Wheel |
|
199 |
Anchor Plate |
229 |
Worm Wheel Collar |
|
200 |
Screw for clamping Anchor Plate to C/Shaft |
230 |
Screw for fastening Key to Worm Wheel |
|
201 |
Screw for fastening Anchor Plate to Column |
231 |
Feed Worm |
|
202 |
Washer for above |
232 |
Screw to fasten Worm to Shaft |
|
203 |
Countershaft |
233 |
Feed Worm Shaft |
|
204 |
Countershaft outside 4-speed cone pulley |
234 |
Worm Box |
|
205 |
Screw for fastening to Countershaft |
235 |
Worm Box lifting lever |
|
206 |
Countershaft inside 2-speed cone pulley |
236 |
Knob for above |
|
207 |
Screw for fastening to Countershaft |
237 |
Worm Box swivel stud |
|
208 |
Countershaft eccentric Bush |
238 |
Butting Screw for saddle end cover |
|
209 |
Lubricator for above |
239 |
Locknut for above |
|
210 |
Screws for attaching Housing to Column |
240 |
Universal Telescopic Shaft Joints |
|
211 |
Countershaft eccentric Bush |
241 |
Telescopic Shaft (Male) |
|
212 |
Bronze Bushes for above |
242 |
Pin for fastening joint to telescopic shaft |
|
213 |
Countershaft belt tension bracket |
243 |
Telescopic Shaft (Female) |
|
214 |
Screw for clamping above to eccentric bush |
244 |
Driving key for above |
|
215 |
Countershaft tension bracket plunger |
245 |
Screws for fastening key to shaft |
|
216 |
Knob for above |
246 |
Worm Box spigot screw for telescopic tube |
|
217 |
Plunger Spring |
247 |
Telescopic Tube (Outer) |
|
218 |
Vee Rope (Countershaft to Spindle) |
248 |
Telescopic Tube (Inner) |
|
219 |
Vee Rope (Motor to Countershaft) |
249 |
Telescopic knuckle cover (Male) |
|
220 |
Vee Rope (Countershaft to Pump) |
250 |
Telescopic knuckle cover (Female) |
|
221 |
Vee Rope (Spindle to Jockey Pulley for Feed) |
251 |
Telescopic knuckle cover pivot screw |
|
222 |
Vee rope ( Jockey Pulley to Gear Box ) |
252 |
Collar for gear box selector shaft |
|
223 |
Cross Saddle Screw |
253 |
Lever for above |
|
224 |
Cross Saddle Nut |
254 |
Lever Knob |
|
225 |
Cross Saddle Screw Thrust Washers |
255 |
Feed Vee Rope Pulley (Spindle end) |
|
226 |
Feed Worm Wheel |
256 |
Screw for fastening above to spindle |
|
227 |
Driving Key for above |
257 |
Feed Vee Jockey Pulley |
|
|
|
258 |
Bronze Bush for above |
|
|
|
|
|
|
Part
|
Description |
Part
|
Description |
|
259 |
Bracket for Jockey Pulley |
284 |
Screws for fastening cover to
saddle end |
|
260 |
Screw for attaching above to
Countershaft |
285 |
Table Strip |
|
261 |
Washer for above |
286 |
Table Strip adjusting Screws |
|
262 |
Jockey Pulley Stud for Bracket |
287 |
Lock
Nuts for above |
|
263 |
Lubricator for above |
288 |
Screws for fastening Table Nut to Saddle |
|
264 |
Nut for fastening Stud to
Bracket |
289 |
Screw for fastening Collar to push rod |
|
265 |
Washers for above |
290 |
Screw for fastening Ball Handle to table screw |
|
266 |
Clip for Suds Drain Pipe from
table |
291 |
Taper Pin for fastening bevel gear to screw |
|
267 |
Name Plate |
292 |
Taper Pin for fastening Collar to raising shaft |
|
268 |
Studs for fastening above to
Base |
293 |
Taper Pin for fastening Bevel Pinion to raising shaft |
|
269 |
Push Rod |
294 |
Screw for fastening 6"
Hand Wheel to shaft |
|
270 |
Push Rod Collar |
295 |
Taper Pin for fastening Collar to table screw |
|
271 |
Raising Shaft |
296 |
Taper Pin for fastening Collar to Cross Slide Screw |
|
272 |
Collar for above |
297 |
Screw for fastening 5" Hand Wheel to Cross Slide Screw |
|
273 |
¼ " Gas Elbow for Pump
Delivery Pipe |
298 |
Screws for fastening female cup to telescopic tube |
|
274 |
¼ " Gas Nipple |
299 |
Screws for fastening pegs into door hinges |
|
275 |
¼ " Gas Elbow for Table
Drain Connection |
300 |
Screw for adjusting cutter arbor bearing bush |
|
276 |
¼ " Gas Nipple for above |
301 |
Washer for above |
|
277 |
¼ " to 1/8" Gas
Reduction Bush for Delivery Pipe |
302 |
Nuts for clamping overarm pads |
|
278 |
Screws for fastening
telescopic knuckle cover (Male) to Gear Box. |
303 |
Washers for above |
|
279 |
Taper Pin for fastening Gear
Box Selector to Shaft |
304 |
Lubricator for Cutter Arbor Bearing |
|
280 |