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4WD MonsterTruck Destroyer XXL 1:8 No. 3 58 10
Air filter
Never drive without air filter!
The air filter prevents dirt from penetrating into the engine via the intake air. Already small dust particles that get between cylinder liner and piston via the
intake air, cause the piston to get stuck or to get seized, which can destroy the engine and lead to consequential damages in the drive section. Moisten the
air filter additionally with a thin fluid machine oil in order to filter out the smallest dust particles.
b) Effects of manner of driving on individual components
Engine
The 5,89 ccm engine of the Monster Truck Chassis „Destroyer XXL“ is
air-cooled.
This means that the air stream takes on the cooling of the engine (air
cooling).
This is why you should try to avoid accelerating the vehicle with frequent, strong load changes (short throttle bursts from low rev range and jerkily lowering
the revs).
The brief high revs strongly heat up the engine, without there being appropriate cooling through wind, as this would be the case at a drive with constantly
high revolutions (high speed). As a result of
overheating the engine,
the piston may get stuck in the cylinder liner (piston gets stuck) and suddenly block
the drive. This could cause consequential damage of the entire drive section.
Drive in part-load operational range with revs that correspond to the desired speed.
However:
When driving slowly continuously, the cooling of the engine through air stream is guaranteed, but instead, there may be damages on the clutch
(wear, overheating through slipping clutch).
Clutch
At idle speed the clutch doesn’t yet grip, the model remains stationary with engine running.
When the revolutions are slowly increased the clutch “slips”, the vehicle moves forward or starts to move slowly.
As with a “real” vehicle, constant slipping of the clutch can cause the clutch to “smoke away” or “burn off”.
Only at high engine revs does the clutch start to “engage”, the engine speed is transmitted without any slip to the drive section.
The wear on the clutch linings is now at its lowest.
Frequent, strong load changes by brief short throttle bursts and jerky lowering of the revs also reduce the life of the clutch linings.
With short throttle bursts as well as by letting the clutch slip, you achieve a slow speed, but at the expense of the clutch.
Bearing
Overheating the engine and/or the clutch also has an effect on the bearings of the clutch bell.
Leaking and toughening of the bearing grease (running dry of bearing) as well as different expansion of the balls and the ball bearing case in the case of
excessive heat, can lead to a
jamming of the balls.
If the balls can no longer move freely, there are frictional losses and therewith an additional heating up
of the engine shaft.
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