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Safety guidelines for operating the dumper within specified limits, covering laden and unladen conditions.
Details maximum payload capacity and advice on handling bulky loads for stability.
Correct hand positioning for safe operation of the starting handle.
Caution against performing adjustments or maintenance under a raised skip without secure propping.
Essential checks before operating the machine, including fluid levels, tyre pressures, and lubrication.
Instructions on adjusting the seat, operating controls, gear shifting, and tipping the skip.
Guidance on engine efficiency, periodic overhauls, and referring major issues to service departments.
Procedure for adjusting the clutch using the square headed screw on the back plate.
Instructions for adjusting the engine mounting bolts to tension the chain.
Procedure for adjusting the brakes by turning the square headed screw on the back plate.
Daily, weekly, and monthly maintenance tasks including checks, cleaning, and fluid changes.
Illustrated guide showing all lubrication points on the dumper.
Table listing recommended oils for engine, steering box, and back axle.
Exploded view of the clutch and housing components with item numbers.
Step-by-step instructions for dismantling the clutch assembly, including removing components.
Procedure for reassembling the clutch, including fitting the spring and slide.
Important notes on adjusting the clutch operating arm gap and on-site adjustment procedures.
Illustrations showing clutch rod and pivot mechanisms for different models.
Diagram and table detailing clutch slide dimensions and clearances for various models.
Precautions after re-assembly, including adjusting the clutch operating arm gap and notes on working clearance.
Exploded view of the Sprite & Nimbus gearbox assembly with numbered parts.
Guidelines for cleaning, using presses, washing parts, and working on a clean bench.
Procedure for removing the front extension cover, top cover, and output coupling.
Steps for removing selector forks, mechanism, and associated components.
Detailed procedure for removing the front extension housing and the mainshaft assembly.
Method for removing the primary shaft bearing, noting potential damage.
Guidance on replacing ballraces, oil seals, and fitting bushes.
Steps for reassembling the main gearbox, including fitting the layshaft and mainshaft.
Continuing steps for mainshaft insertion, fitting primary shaft, and selector fork mechanisms.
Instructions for fitting Welch plugs, end cover, top cover, and checking gear operation.
Procedure for removing the input shaft, spacer, '0' ring, oil seal, and bearing.
Instructions for re-assembling the front extension housing and ensuring free rotation.
Importance of correct axle servicing for performance and longevity.
Details on hypoid gear lubrication, recommended oils, and capacities.
Illustration showing how to measure axle shaft end float using a dial gauge.
Diagram showing the assembly of the hub and extractor plate for removal.
Illustrations detailing the process of using the extractor plate.
Detailed exploded view of the differential assembly with numbered parts.
Procedure for removing the entire axle unit from the dumper machine.
Steps for removing and refitting axle shafts, including handling broken shafts.
Procedure for draining lubricant, removing rear cover, and axle shafts.
Steps for removing bearing caps, noting markings for refitting.
Instructions on using the carrier stretcher tool and limits for stretching.
Steps for removing the ring gear and bearing cones from the differential case.
Procedure for removing the companion flange and the pinion assembly.
Detailed steps for removing the companion flange and pinion with its bearing cone.
Instructions for removing oil seals, gaskets, and bearing cups from the carrier.
Illustration of an axle assembly utilizing collapsible spacers.
Illustration of an axle assembly using only shims for spacers.
Procedure for stripping a four pinion differential assembly, noting gear positions.
Steps for reassembling a four pinion differential, including meshing and bolt tightening.
Illustrations showing procedures for removing inner and outer bearings.
Checking pinion and gear serial numbers for correct matching.
Procedure for assembling the inner bearing cone onto the pinion using a service tool.
Steps for pressing the outer bearing cup into the housing with notes on seating.
Fitting the pinion and bearing cones into the housing with correct support.
Instructions for fitting the oil seal, gasket, companion flange, washer, and locknut.
Procedure for tightening the locknut and checking pinion assembly rotation.
Steps to check the correct positional setting of the pinion using measurements and variations.
Method for calculating the nominal clock setting height based on measured dimensions.
Chart providing distance required for pinion settings for Nimbus/Sprite and Axle Codes.
Explanation of zero cone setting, dimension 'B', and adjustments for marked variations.
Alternative exploded view of the differential assembly with numbered parts.
Table of torque tightness figures for Nimbus & Sprite (Front Axle).
Table of torque tightness figures for Nimbus & Sprite (Both Axles).
Table specifying torque values for turning pinion and complete axle.
Illustration showing setup for measuring pinion end.
Procedure for measuring pinion setting using a dial gauge and obtaining mean figures.
Details on adjusting shims for pinion height and maintaining bearing preload.
Steps for assembling the ring gear and bearings onto the differential case.
Procedure for lowering the differential case assembly into the carrier and fitting shim packs.
Instructions for positioning a dial gauge to measure gear backlash.
Steps for assembling the differential assembly with bearing cups into the carrier.
Procedure for tightening bearing cap bolts to the specified torque.
Procedure for refitting the carrier cover using a new gasket and tightening bolts.
Diagrams illustrating tooth contact conditions (ideal, high, low) and their causes.
Remedies for tooth contact issues, including pinion cone setting and backlash adjustments.
Steps for adjusting backlash by transferring shims and checking tooth contact.
Procedure for correcting heel contact by adjusting backlash and maintaining minimum backlash.
Exploded view of the drive shaft assembly with numbered components.
Procedure for dismantling a snap ring type sliding joint, including bearing removal.
Instructions for dismantling a bearing cap type joint, noting it is not applicable.
Guidance on checking bearing races and spider journals for wear and distortion.
Procedure for reassembling drive shaft joints, including fitting bearings and checking for binding.
Checking alignment of arrows on splined sleeve yoke and stub shaft.
Steps for replacing the complete drive shaft assembly, including flange cleaning and bolt tightening.
History of lubricator fitment and recommended lubrication intervals.
List of suitable lithium base greases for needle bearings and centre spider lubrication.
Exploded view of the steering gear assembly with numbered parts.
Three main adjustments: cam bearings, rocker shaft end play, and roller-cam engagement.
Procedure for adjusting cam bearing end play using shims.
Procedure for adjusting rocker shaft end play by tightening the adjusting screw.
Procedure for adjusting the roller-cam engagement by removing shims.
Guidance on using SAE.90 oil for manually operated steering gears.
Illustration of the older taper type steering column end.
Illustration of the newer splined type steering column end.
Diagram and parts list for the oil bath air cleaner and fittings.
General and servicing instructions for cleaning and maintaining the oil bath air cleaner.
Checklist for scheduled maintenance tasks, including engine, gearbox, and axle servicing.
Specific checks for hydraulic tipping models, including oil pipelines and filters.
Importance of maintenance for machine performance, operation, and cost savings.
Overview of the three stages of maintenance: daily, weekly, and periodic servicing.
General reminders for maintenance, including grease, oil, cleaning, and safety precautions.
General| Brand | Thwaites |
|---|---|
| Model | SPRITE NIMBUS |
| Category | Construction Equipment |
| Language | English |
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