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Thwaites SPRITE NIMBUS, Руководство пользователя

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CHAPTER 2 - SPRITE/NIMBUS MODELS
DISMANTLING & REASSEMBLY OF AXLE CENTRE ASSYS. USING SHIM SPACERS
TO REMOVE DIFFERENTIAL UNIT WITH SERVICE TOOLS:

1.

First drain the lubricant from the gear carrier housing and then remove the gear

carrier rear cover. Flush out the unit thoroughly, so that the parts can be carefully

inspected. Remove the axle shafts as previously detailed.

2.

Note markings on bearing caps and axle casing for use when refitting.

3.

Remove bearing caps using the loosened bolts to ease the caps away from the

bearing.

.

Fig.2

Fig. 1

3-2-0

Содержание SPRITE NIMBUS

Страница 1: ...SPRITE NIMBUS...

Страница 2: ...HEY MAY MAKE THE DUMPER UNSTABLE AND MAKE IT DIFFICULT FOR THE DRIVER TO SEE THE ROAD AHEAD REMEMBER THE LOWER THE POSITION OF THE LOAD THE SAFER THE DUMPER TAKE CARE WHEN USING STARTING HANDLE WRONG...

Страница 3: ...ING INSTRUCTIONS NIMBUS SPRITE MODELS CONTENTS A OPERATION ROUTINE MAINTENANCE B SERVICING POINTS 1 CLUTCH 2 GEARBOX 3 AXLES 4 DRIVE SHAFT 5 STEERING GEAR 6 OIL BATH AIR CLEANER 7 MAINTENANCE CHECK OF...

Страница 4: ...knob The pedal positions are the same as a car i e clutch pedal to the left of the steering column brake pedal to the right of the steering column throttle pedal to the right of the brake pedal The ha...

Страница 5: ...i e at least once per week To do this jack up and remove wheels release brakes and remove brake drum The wheel and wheel nuts hold the brake drum on the hub GENERAL MAINTENANCE It is extremely importa...

Страница 6: ...B...

Страница 7: ...Turn square headed screw in clutch back plate for adjustment 1 1...

Страница 8: ...CLUTCH AND HOUSING 1 2...

Страница 9: ...26 now fit the clutch spring item 28 and slide an easy way of fitting the clutch spring is to compress the clutch spring in a vice and wire it up The wire must be cut and removed after the conical nut...

Страница 10: ...SLIDE Item 102 CLUTCH SLIDE NUT OR CONICAL NUT Item 91 LOCKING WIRE SPRING Item 101 SLIDE ROD TO BACK PLATE BEARING Item 104 CLUTCH THRUST CHAINCASE Item 109 CLUTCH OPERATING ARM OR LEVER A 1 64 ALL...

Страница 11: ...closes to on the 2 ton Alldrive and 1 8 on all other models To adjust the clutch on site a special clutch adjusting spanner is provided with each machine Two people are required one to sit on the mach...

Страница 12: ...GEARBOX ASSEMBLY T5260 SPRITE NIMBUS...

Страница 13: ...on as the shaft has left the fork close the ends of the hole in the fork with the fingers and remove complete from the gearbox Now undo the split pins in the clevis pins item 48 remove the clevis pins...

Страница 14: ...th a suitable drift and then reamed in position with a 5 8 diameter reamer The pilot diameter of the mainshaft should be a free running fit without undue shake 3 The shafts and gears in the gearbox ar...

Страница 15: ...l and spring in position The fork with the rod in place is passed into the box and the selector shaft is then pushed through from the rear of the case and the fork pushing out the piece of rod in the...

Страница 16: ...ring item 18 may pass through and by using a drift slightly smaller than the bore of the housing the bearing and oil seal may be pressed out 4 The bearing item 23 can be removed from the input shaft b...

Страница 17: ...nd BEARINGS 3 2 1 PARA 12 REMOVAL OF PINION 3 2 2 PARA 16 REMOVAL OF OIL SEAL and BEARINGS 3 2 5 PARA 19 DISMANTLING OF THE DIFFERENTIAL 3 2 5 PARA 20 RE ASSEMBLY OF THE DIFFERENTIAL 3 2 6 PARA 21 RE...

Страница 18: ...eted under workshop conditions using correct equipment as recommended Certain components should always be renewed when servicing axles these are stated in the text however any component which is found...

Страница 19: ...Axle Shaft End Float Measurement dial gauge shims 3 b...

Страница 20: ......

Страница 21: ...3 1 10...

Страница 22: ...which control the shaft end float 4 Remove the axle shaft with its taper roller bearing using the Service Tool 4a To remove a broken axle shaft make a loop at one end of a length of stiff wire slide...

Страница 23: ...from the gear carrier housing and then remove the gear carrier rear cover Flush out the unit thoroughly so that the parts can be carefully inspected Remove the axle shafts as previously detailed 2 Not...

Страница 24: ...NT Do not overstretch See instructions 7 Remove differential assembly complete with ring gear It may be necessary to lever the case out of the carrier In order to prevent damage do not lever against s...

Страница 25: ...ew parts 17 Remove outer pinion bearing cone part item 26 18 Remove inner and outer bearings cups from carrier Extraction slots are provided in the carrier for ease of removal purposes Carefully note...

Страница 26: ...3 2 3...

Страница 27: ...he back face Fit the shaft spacer in the cross pin if originally fitted Refit the cross pin with the pinion mates and shaft spacer thrust washers This will ensure correct meshing of pinion mates and s...

Страница 28: ...DIAGRAMS TO SHOW THE PROCEDURE IN REMOVING THE INNER AND OUTER BEARINGS Z Z Y X Y X Fig 8 3 2 4...

Страница 29: ...to serial number have no significance in service 22 Assemble inner bearing cone onto pinion using service tool or suitable press 23 Select new shim pack the size of that removed from the inner bearing...

Страница 30: ...er of bearings whilst assembling iii Both bearing cups may be assembled together if the appropriate service tool is available 25 Insert pinion and inner pinion bearing cone into housing and support in...

Страница 31: ...ptor locating near the outer diameter of the seal 29 Fit companion flange If it is necessary to press or tap the flange into position do not let flange react against bearing but react against support...

Страница 32: ...xle model 4HA Nominal cone distance 2 625 2 625 Marked variation 3 003 2 002 Actual required distance 2 628 2 623 iv Read the differential bearing seat diameter from chart 1 Which is 3 4392 Mean v Sub...

Страница 33: ...ked Zero will be at the zero cone setting distance dimension B in figure 15 from the centre line of the gear to the face on the small end of the pinion a pinion marked Plus Two 2 should be adjusted to...

Страница 34: ...3 2 11...

Страница 35: ...Drive Gear Bolt 21 3 8 U N F X 49 56 Ib f ft 7 16 U N F X 70 88 Ib f ft Diff Bearing Cap Bolt 6 1 2 U N C R 63 72 Ib f ft Gear Carrier Cover Screw 3 5 16 U N C S 18 20 Ib f ft Diff Case Bolt 11 3 8 U...

Страница 36: ...d 37 Repeat operation on other differential bore 38 Add the two readings and halve the result in order to obtain the mean figure If the pinion is set correctly a mean reading of zero should be obtaine...

Страница 37: ...oad will lead to pitting and failure of the bearings To rectify the preload adjust the shim pack between the outer bearing cone and the pinion shank or spacer but do not touch the shims behind the inn...

Страница 38: ...10 and 030 NOTE When using new bearings rotate differential assembly approximately six times whilst pressing assembly towards each bearing in turn this is in order to settle bearings Following this ad...

Страница 39: ...orce assembly into position as this could cause damage to bearings 49 Fit bearing caps noting that markings match with markings on carrier 50 Tighten bearing cap bolts to torque given in chart 2 with...

Страница 40: ...53 Re fit carrier cover using new gasket Tighten cover bolts to torque figure given in chart 2 Fig 23 3 2 17...

Страница 41: ...s from between the pinion bearing spacer or the shoulder of the pinion shank and the outer bearing cone This correction has a tendency to move the tooth bearing towards the heel on drive and toe on co...

Страница 42: ...ed is not satisfactory Diff Preload Shim Alice 007 on All Models Backlash As etched on Drive Gear Minimum 004 E Heel Contact Figure E shows an example of heel contact which is indicated by the concent...

Страница 43: ...Drive Shaft Assembly Servicing...

Страница 44: ...of pliers and prising with a screw driver If ring does not snap out of groove readily tap end of bearing race lightly to relieve the pressure against ring Support the shaft and with the yoke lug on to...

Страница 45: ...screws and bearing cap Use a soft nosed drift slightly smaller than the outside diameter of the bearing race to drive out from the top the underneath bearing race Keep joint in this position enabling...

Страница 46: ...ther parts likely to show signs of wear are the splined sleeve yoke or splined stub A total of 004 circumferential movement measured on the outside diameter of the splined should not be exceeded Shoul...

Страница 47: ...skets and gasket retainers on the journal or spider assembly Using the tubular drift as shown on illustration The journal shoulders should be shellaced prior to fitting to ensure a good lubricant seal...

Страница 48: ...of the Needle Bearings As a guide for type the following are suitable and all are equally recommended ESSO MULTIPURPOSE GREASE H and T S D 1110 GULFSIL GREASE G 78 2 and G 64A 2 SUPER LITHIUM FILTRAT...

Страница 49: ...5 1...

Страница 50: ...cam item 6 When this adjustment has been correctly made it should be such that after the bottom cap item 16 is again fastened securely to the box casting by the screws item 18 the cam and steering wh...

Страница 51: ...OLD TYPE TAPER STEERING COLUMN CHANGE NEW TYPE SPLINED 5 3...

Страница 52: ...filling the base to the indicated level with clean sump oil and re fitting to the air cleaner body In the case of the OBAR type units the lower filtering medium section may also be removed and washed...

Страница 53: ...Adjust cables if necessary 10 Check Propshaft bolts for tightness 18 21 Ibs f ft 11 Check Wheel Nuts for tightness Drum Brakes 150 Ibs f ft Disc Brakes 200 Ibs f ft 12 Check Engine Gearbox and Steeri...

Страница 54: ...pare grease should be kept covered never use dirty grease 2 Use the correct grade of lubricating oil as recommended and see that funnels and containers used are clean and dry Do not mix different grad...

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