Cirrus 3CFM Provozní pokyny stáhnout pdf (Strana 21)

Page 21

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The XST 4WD Truggy RTR features front, centre and rear bevel gear differentials that each feature O-Ring seals and cup-style housings.

All three differentials are packed with differential grease that is good for most driving conditions. You can make ne-tuned adjustments

to each differential by removing them from the chassis, opening them up and replacing the grease with different weights of silicone oil.

Front and Rear Differentials: Adding heavier silicone oil will tighten the differentials and adding lighter silicone oil will loosen the differentials.

If your XST 4WD Truggy RTR feels loose (uncontrollable) during turns, you can tighten the front differential or loosen the rear differential. If

your XST 4WD Truggy RTR is pushing (understeers) during turns, you can loosen the front differential or tighten the rear differential.

Centre Differential: For the centre differential, using a lighter weight oil will cause the differential to unload easier. Generally, this is

good for loose tracks with little traction. Using a heavier weight oil will provide a more even amount of power to the front and rear. On

loose tracks, this can cause the XST 4WD Truggy RTR to be too 'squirrely' (uncontrollable) or cause the rear end to slide out. For this

reason, we only suggest using heavier oil if you're driving on a high-traction surface.

For

racing and general use, we recommend using XTM Racing # 3000 oil (P/N 146712) in the front, # 5000 oil (P/N 146714) in

the centre and # 1000 oil (P/N 146710) in the rear. This is a good starting point for most driving conditions.

For your convenience, we show you how to remove and disassemble the front differential. Removing and disassembling the centre

and rear differential is similar. Please refer to the differential assembly drawing on page 26 for a detailed break-down of the

differential assembly.

q Remove

the upper hinge pins, then remove the two 3x38mm TP screws that hold the

upper suspension plate in place. Remove the upper and lower suspension plates.

q Pull the front half of the differential case straight out, then remove the hinge pins, drop

the lower suspension arms and pull the differential assembly straight out.

q Remove

the four 4x18mm F/H TP screws from the bottom of the chassis that hold the

front bumper and the gearbox in place.

q Remove

the four 2x10mm TP screws that hold the differential housing together. Pull

the differential housing apart, then pull the differential assembly out of the differential

housing.

q Y

ou can now disassemble the differential, clean away all of the grease, then reassemble

and rell the differential with the silicone oil of your choice.

efer to the steps below to assemble the differential.

q Push one ball bearing onto the differential cup.

q Push the output joint into the differential cup, then push one small pin into the hole in the output joint, making sure that the pin is centred. Install the pin through the hole

n the side of the differential cup (A).

q Install one large bevel gear into the differential cup, making sure that the slot in the back of the bevel gear ts over the pin in the output joint.

Install two small bevel gears onto each pin, then install the small bevel gear assemblies into the differential cup, making sure that the at spots in the pins cross over

ach other and that the ends of the pins t in the slots in the side of the differential cup (B).

q Install one grub screw into the side of the differential cup, then ll the differential cup full with differential oil. Let the differential 'rest' until the air bubbles are gone.

Press a second large bevel gear into the differential cup, making sure that the gears mesh with each other, then carefully place a gasket onto the differential cup (

C).

q Reinstall the ring gear (or centre spur gear) onto the differential cup, making sure to tighten the screws rmly (D).

C D

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