Thwaites SPRITE NIMBUS, Manual

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CLUTCH ADJUSTMENT (See Illustration)
Depress clutch pedal to its full amount of travel, then turn the square headed screw
on the clutch back plate in a clockwise rotation until tight, then turn back until clutch
unit revolves freely. DO NOT adjust clutch by the wired nut, as this is pre-set at
works to give correct spring tension.
CHAIN ADJUSTMENT
Slacken the engine mounting bolts, and move the engine over to the right. Never
adjust the chain too tight, slight up and down movement is necessary. Always keep
chain well oiled.
BRAKE ADJUSTMENT
Release handbrake and turn the square headed screw located on the brake back
plate in a clockwise direction until tight, and then turn back until wheel revolves
freely.
If working in very dirty conditions it is advisable to strip and clean brakes
periodically 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 important that the dumper be kept clean, if cleaned regularly it
facilitates easy greasing and general maintenance. When working with concrete,
machine should be hosed down and all surplus concrete etc. removed before it goes
hard. Having cleaned the dumper the following maintenance should be carried out:-
Daily: Check oil in engine.
Fill fuel tank with clean fuel.
Oil chain and all moving parts.
Weekly: Remove oil filter, clean and refill with oil.
Remove air filter and clean.
Remove fuel filter and clean.
Check chain adjustment.
Check clutch adjustment.
Check tyre pressures.
Grease all points thoroughly and wipe the machine down with oily rag.
Monthly: Change engine oil and filters, see engine handbook.
Change gearbox oil - 1¾ pints.
Change axle oil - 6½ pints (Nimbus) 4 pints (Sprite)
Change steering box oil - 2/3 pints.
(B)