c) Checking Alignment and Tooth Backlash of the Drive
The engine transmits its power via the pinion on the clutch bell to the main pinions. 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 tensions 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
pinions 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
d) 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, the 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!
The operation of the receiver is possible with rechargeable batteries or normal batteries. Note however, that rechargeable AA batteries have less voltage (4 x
batteries 1.5 V each = 6V; 4 x rechargeable batteries 1.2 V each = 4.8 V). Less voltage and lower capacity of the rechargeable batteries reduce the operating
time and can lead to malfunctions of the RC system.
Our advice:
To operate the receiver, you should use a full-load 5-cell rechargeable battery pack (hump rechargeable battery pack) with an operating voltage of
6V.
• Insert the 8 batteries/rechargeable batteries into the battery compartment of the transmitter and observe the correct polarity!
• Open the RC box on the chassis.
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