The engine transmits its power to the two main gears which are connected with a one-way bearing via the pinion on the clutch bell. Both rotary axes, i.e. the

crank shaft, engine side, and the axis of the drive section to the front and rear axis, must be aligned exactly parallel to each other. This prevents tension in the

drive section, premature wear of the pinions and bearing journals as well as loss of power.

The parallel alignment of crankshaft and drive section has to be checked each time before using the vehicle and, if necessary, it has to be

readjusted!

When the alignment is parallel, the pinion on the clutch bell and the main pinion will run smoothly. If there is too much tolerance this will destroy the toothed

wheels in the long run; too little tolerance destroys the bearing in clutch and engine.

Checking the tooth backlash

• Put a thin paper slip between the pinion on the clutch bell and the main

pinion in the drive section.

• Turn gears by hand

• The paper strips must not rip apart when the wheels turn!

Readjusting the tooth backlash

• Loosen the four screws of the engine mounting on the bottom of the

chassis

• Align engine laterally and fasten screws again tightly

• Unscrew the four screws on the engine support and align the engine

vertically

h) Commissioning the RC System

Please note the separate operating instructions of your remote control system!

The operation of the transmitter is possible with rechargeable batteries and normal batteries. When using rechargeable batteries, make sure that these have a

high capacity. Otherwise, service life is reduced. If you use batteries in the remote control, we recommend the use of high-quality alkaline batteries. Ensure

sufficient residual capacity with a battery tester.

If the batteries/rechargeable batteries are empty, always replace the complete set (never individual cells!). Always use batteries or rechargeable batteries of the

same type and manufacturer. Never mix batteries and rechargeable batteries!

Powerful servos are installed in the model, which match the achievable speed and the vehicle weight. We thus advise against using 4 batteries/rechargeable

batteries (type AA) as receiver power supply.

Attention!

To operate the receiver, you have to use a full-load 5-cell rechargeable battery pack (hump rechargeable battery pack) with an operating voltage of

6V.

• Insert the batteries/rechargeable batteries (type AA) into the battery compartment of the transmitter and observe the correct polarity!

• Open the RC box on the chassis.

• Connect the 6 V receiver battery (hump rechargeable battery pack) to the switch cable.

• Observe the correct polarity and a tight fit.

• Reinsert the hump battery pack with the cables and the plug into the RC box.

• Carefully connect both plugs.

• Carefully remove the receiver from the RC box and uncoil the aerial wire.

• Guide the aerial wire outwards through the opening in the cover of the RC box.