Triumph machines

Please read before starting machine Before this machine leaves the factory, the controls are pre-set, as detailed below, to avoid damage by accidental starting on high speeds and coarse feeds. Before starting the machine, check the settings and ensure that the controls are in the correct positions. Before operating the machine, read carefully 
1. SPINDLE ROTATION LEVER
The spindle rotation lever is set in the neutral position.
2. SPINDLE SPEED SELECTOR
The spindle speed selector lever is set at 60 r.p.m.
3. LEADSCREW REVERSE & THREAD RANGE LEVERS
The leadscrew reverse lever and the thread range lever are both set in the neutral position.
4. FEED & SPEED SELECTOR LEVERS
The three feed and speed selector levers are set from left to right at position and respectively.
5. GEARBOX GATE LEVER
The gearbox gate lever is set in the neutral position. INSTRUCTION PARTS MANUAL This manual applies only to the machine having the serial number shown this is stamped on the front of the lathe bed at the tailstock end and must be quoted in all communications. CLEANING
before operating any controls, remove the anticorrosion coating from all slideways and the end gear train, see fig 1, using white spirit.
DO NOT USE CELLULOSE SOLVENTS FOR CLEANING AS THEY WILL DAMAGE THE PAINT FINISH.
Oil all bright machined surfaces immediately after cleaning using machine oil or slideway lubricant: use heavy oіl or grease on the end gears.

LIFTING
Use the bed-clamping plate and eyebolt to sling the lathe as in Fig. 2. Position the saddle and tailstock along the bed to obtain balance.
IMPORTANT: DO NOT USE SLINGS AROUND BED AS LEADSCREW AND FEEDSHAFT MAY BE BENT.

INSTALLING
Locate the machine on a solid foundation, allowing sufficient area all round for easy working and maintenance see foundation plan. The lathe may be used free-standing or boited to the foundation. Free-standing: Position lathe on foundation and adjust each of the eight mounting feet to take equal share of the road. Then using an engineers precision level on the bedways as in Fig. 3 adjust the feet to level up machine. Periodically check bed level to ensure continued lathe accuracy. Fixed installation: Position lathe over eight bolts. set into the foundation to correspond with holes in the mounting feet: dimensions are shown on foundation plan. Accurately level the machine, as in Fig. 3 then tighten hold-down bolts. Re-check bed level.

ELECTRIC SUPPLY CONNECTION
lnput wires should be connected to mains terminals of the isolator switch on the electrical panel in back of the bed, below the headstock, see Fig. 4. Maіn motor rotation must be anti-clockwise viewed from the pulley end. Should motor run in wrong direction, interchange any two of the three phase lines. Appropriate wiring diagrams are included in Servicing and maintenance section of this manual.

LUBRICATION CHECKS
Before operating the machine make the following important checks:
1. That the oil tank in the head-end plinth is filled to correct level indicated by dipstick with shell.
2. That the gearbox is filled to Ievel marked on oil sight window with.
3. That the carriage apron is filled to level mark on oil sight window with.
4. In addition, apply an oil can to the points shown on lubrication diagram which require daily oiling. Use light machine oil or way lubricant.
5. Before each working shift, operate the manual lubrication pump to ensure adequate lubrication of carriage slideways.
NOTE: When the lathe motor is switched on, the oil sight window in front of the headstock should fill with oil indicating that the pump is operative. If this does not occur stop the machine and investigate the cause.
Note:iIn interests of economy etc., headstock lubrication tank is reduced in content on delivery to minimum working quantity of 3 imperial gallons.

CHUCKS AND CHUCK MOUNTING WARNING: USE ONLY HIGH-SPEED CHUCKS WITH THESE MACHINES.
When fitting chucks or faceplates, first ensure that spindle and chuck tapers are scrupulously clean and that all cams lock in the correct positions: see Fig. 5. It may be necessary when mounting a new chuck to re-set the camlock studs. To do this, remove the cap-head locking screws and set each stud so that the scribed ring is flush with the rear face of the chuck with the slot lining up with the locking screw hole see inset, Fig. 5 Now mount the chuck or faceplate on the spindle nose and tighten the six cams in turn. When fully tightened, the cam lock line on each cam should be between the two marks on the spindle nose.

LATHE CONTROLS 
1. Spindle speed selector
2. Electrical push buttons
3. Apron, surfacing or sliding feeds
4. Gearbox, threads and feeds
5. Spindle rotation reverse only
6. Spindle rotation forward and reverse
7. Footbrake

ELECTICIAL CONTROLS
With the exception of the lathe isolator, all electrical controls are fitted into the front face of the headstock:
1. Press the green button to start the main drive motor.
2. The indicator lamp glows whílst the motor is running.
3. Press the RED mushroom-head button to stop
the main motor and also electrical supply to ancillary services.
4. Goolant pump ON/OFF push buttons.

Spindle rotation: Selected by the lever controls A and B. The apron lever for forward, free and reverse selections, the lever for reverse and free seiections only. With the main motor running; move lever a out and down to engage forward rotation of spindle, or straight upward to enaage reverse rotation. Lever can be moved only upward to engage reverse rotation or returned to the central position to disengage drive. Footbrake: a foot pedal between plinths operates the spindle brake and at the same time returns selector levers A and B to the central disengaged position.
Height of the foot pedal depends upon the position of a pin engaged in the bar a choice of three positions is provided.
Spindle speeds: Selected by the grouped dial controls on the headstock. The sixteen available speeds are shown directly on the lever-operated dial in four groups each of which is further divided into four displayed spindle speeds. Rotate this dial, using the large handie, to bring the required speed-group uppermost and opposite the fixed section.
Now rotate the other handled dial until the appropriately coloured arrow is aligned with the required speed on the uppermost dial group.
DO NOT SELECT SPEEDS WHILST SPINDLE IS ROTATING OR CLUTCHES ENGAGED APRON
CONTROL MUST BE CENTRAL DISENGAGED TO AVOID GEAR DAMAGE
To free the spindle for hand rotation, set any one
of the blank spaces on the group-dial to the midposition of the fixed section.

THREADS AND FEEDS
All the threads and feeds directly available from the gearbox are shown on the data plate fitted on the front of the headstock. The setting of control levers is shown in Fig. 12.
The position of lever provides a range of fine threads, the position a coarse thread range. Do not select the coarse range at spindle speeds higher than. The end-gear train should be arranged as in the diagrams shown on the data plate to suit threading requirements. Change gears: our technical department will specify the most convenient change-gears required for any special thread not shown on data plate.
Feeds: Sliding feeds per spindle revolution range from.
surfacing feeds per spindle revolution range from or half the sliding feed.

THREADING DIAL INDICATOR
Located on right-hand side of the apron on lathes having an English leadscrew, except when a rapid threader unit is fitted as optional extra. Ergage the irıdicator pinion with the leadscrew and tighten the handnut to retain indicator in
engagement. Release handnut, swing indicator out of engagement and secure with the handnut when not required. To cut threads of an even number per inch, close the leadscrew nut as ANY line on the dial passes the datum mark. This dial cannot be used with an English leadscrew to cut metric threads, module pitches or fractional threads other than those shown. For these the leadscrew nut must be kept closed and the machíne reversed by use of the apron control lever after each cutting pass and tool with drawal. For lathes having a metric leadscrew a dial indicator combination unit is supplied, and, by selection of the correct pinion, all metric pitches shown on the data plate can be cut in the manner used for English threads on an English leadscrew.

MULTI-START THREADS
Muiti-start threads can be cut on a lathe in three
ways:
1. By repositioning the compound top slide one pitch forward for each start. Note that the slide is normally set at 90 deg. to the axis of the machine cross-slide. The accuracy of this method depends upon the skill of the operator.
2. By using an accurately-divided driver plate and turning the workpiece one division forward for each start.
3. By advancing the driver gear a calculated number of turns to advance the spindle by one pitch of the thread to be cut. The accuracy of this method is that of the machine.
With colchester triumph 2000 lathes, two ratios exist between the spindle and driver gear shaft; the LOW range where the ratio is and the high range where the ratio is.
In order to use this method, the number of teeth on the driver gear must be divisible by the number of starts being cut. The driver gear ís then advanced by half this number of teeth when in low range and, conversely, by twice the number of teeth when in high range. The limitation of this method depends upon whether the number of starts required can be divided equally into the number of teeth on the driver gear without a remainder. On the standard end gear train for this machine the driver gear has 24 teeth; so that two, three or four start threads can readily be. cut., For other odd numbers of starts a choice must be made of methods 1 or 2.

TAILSTOCK
Can be freed for movement along the bed by unlocking the ciamp lever. Additional clamping may be obtained by tightening the large nut located in a recess below the handwheel. Release this clamping nut before attempting to
move the tailstock and on completion of the need for extra clamping. The tailstock barrel ds locked by lever, see
Fig. 15. The tailstock can be set-over for production of shallow tapers or for re-alignment. Release the clamping lever and adjust screws at each side of the base to move tailstock laterally across the base. An indication of the setover is given by the datum mark at the tailstock end face, as shown in Fig. 16. Apply clamp lever after adjustment of set-over.

LATHE ALIGNMENT
With the lathe installed and running, we recommend a check on machine alignment before commencing work. Check levelling and machine alignment at regular periods to ensure continued lathe accuracy. Headstock check: Take a light cut with a keen tool over a 6 in. Length of 2 in. dia. steel bar gripped in the chuck but not supported at the free end. Micrometer readings at each end of the turned length. Should be the same. To correct a difference in readings, slacken the four headstock hold-down screws shown in Fig. 18 and adjust the set-over pad beneath the headstock to pivot the headstock about the doweI. Tighten all screws after adjustment and repeat the test-cut micrometer-reading sequence until micrometer readings are identical, l.e. machine now cutting absolutely parallel. Tailstock check: Using a 12 in. Ground steel bar fitted between headstock and taiIstock centres, check the alignment by fitting a dial-test indicator to the topslide and traversing the centre line of the bar lower sketch, Fig. 17. To correct error release the tailstock clamp lever and adjust the two set-over screws provided. Continue with checking and correction until the alignment is perfect.

LUBRICATION ЅYSTEM
Headstock bearings and gears are supplied with oil delivered by an impeller-type pump attached to a tank in the head-end plinth. A distributor within the headstock supplies oil to the drive clutches, bearings and gears. The oil pump is driven by a vee-belt from the omain motor, insuring continuous supply whilst the main motor is running; evidence of supply is shown through an oil sight window in the headstock front face. A self-adjusting jockey pulley ensures constant belt tension. A large-bore pipe returns oil  from the bottom of the headstock into the tank. Ensure that the oil level in the tank is kept topped up to the mark on
the filler-cap dipstick, see Fig. 25. Check oil level weekly and change the oil every year using shell tellus Oil 27 or equivalent grade see below.
Tank capacity is 3 gallons.
To empty the tank, set apron control lever to central position and stop the main motor. Detach the delivery pipe at the headstock, remove pipe cleats and with the pipe directed into a suitable container restart the main motor sc causing the pump to empty the tank contents. The small
quantity of oil left in the tank below the level. of the pump intake can then be drained off through the drain plug proecting from the end of tank through the plinth wall.
The gearbox is splash-lubricated from an internal reservoir of oil. Check the oil level constantly to the mark on the oil sight window in the front end face of the gearbox; a weekly
check recommended, with the oil changed every year. Top up through a filler cap in thee top of the gearbox, enclosed by the end-guard. Drain from a drain plug in the bottom of the gear-box. Apron and Slideways. A manually operated lubricating pump is incorporated into the apron. Drawing oil from the apron reservoir it enables the operator to ensure that the slideways are kept adequately lubricated. The pump should be operated; before commencing work and occasionally during the work period, until oil flows
from the tell tale hole in the carriage saddle, indicating that the system has received a full supply of oil. Should no oil appear at refill the reservoir to the level of the oilsight with shell Tonna oil 33. The apron can be drained by unscrewing a headed drain plug in the bottom plate. In addition to pump-fed lubrication, oiler points are provided for the saddle, cross-slide, crossslide nut and top-slide compound slide screw using a standard pump-type can with light machine oil or way lubricant, see Fig. 26. On the tailstock, oiler points are provided for daily attention from a standard oil can. It is recommended that all slideways, the leadscrew and feed shaft are cleaned off a bristle
paint brush is useful for this and lightly oiled after each period of work.

SLIDEWAYS ATTENTION
Tapered gib strips are fitted to slideways of saddle cross-slide and top compound slides so that any slackness which may develop can be rectified. Ensure that slideways are thoroughly cleaned and lubricated before attempting adjustment. Then reset the gibs by slackening the rear gib screw and tightening the front screw, a little at a time.
Check constantly for smooth action throughout full slide travel; avoid over-adjustment which can result in increased wear-rate and stiff or jerky action.

JAW CHUCK: 250 mm three-jaw direct on spindle dynamically balanced ductile ironchuck, with hardered and ground scroll. Four-jaw direct or spindle mounting ductle-iron chuck.

FACEPLATES
14 in. dia. standard faceplate for use on either straight or gap bed models. Large faceplate for use on gap bed lathes only.

HYDRAULIC COPYING ATTACHMENT
The Colchester hydraulic 470 copying equipment comprises a profile slide assembly, a rear beam assembly capable of receiving as masters either round models or flat templates and a Colchester quick change toolpost with one standard toolholder. The free-standing hydraulic power unit has a set of inter-connecting hose housed in a single flexible armoured conduit. This universal unit, capable of longitudinal copy turniny, face copy turning and copy boring, has a copying accuracy to.

TRAVELLING STEADY
This steady is available for fitting to the saddle in the tapped holes provided and has a capacity fur material up to 3 in. dia.
STATIONARY STEADY
Materials up to 6 in. dia. can be held by the steady which may be clamped between the bedways at any positíon aIong the length. ROTATING CENTRE
HIGH SPEED THREADING UNITS
The Colchester high speed threading unit enables English and American threads to be cut many times faster than by normal methods.
The Colchester high speed threading unit enables metric threads to be r.ut many times faster than by normal methods.

CHUCK/CHIP GUARDS
Chuck guard for fitting to headstock.
Perspex chip guard for fitting to saddle.

MACHINE LIGHTING
Low volt machine lighting for standard A.C. supply only.

BED ЅTOPS
A 5-position turret-type bedstop which can be fitted to either end of the saddle allows the operator to achieve a number of consistent shoulder lengths and accurate positioning for
grooving, parting-off, etc.
The single-type bedstop fits on the front of the bed at any position for use with the 5-position stop or on its own.

TOOLPOSTS FRONT
Colchester quick change toolpost see rear toolpost for toolholders.
TOOLPOSTS REAR
Rear slotted toolpost.
Colchester quick change rear toolpost.
Standard Toolholder

TAPER TURNING ATTACHMENT
The Colchester taper turner is designed to produce accurate tapers up to 15 in. long and 20 included angle at any distance from the spindle nose. The taper turner is of the telescopic type and once set to the desired angle the tightening of a single clamp screw converts from plain to taper turning.