Engine overheating due to loss of coolant will most often be corrected by SLOWLY
adding coolant while the engine is running at FAST IDLE. Should this fail to correct the
problem, drain and flush the system and refill with fresh coolant (50% solution of
ethylene glycol) and a corrosion inhibitor.
Allow the engine to cool before draining and flushing the cooling system.
Water containing more than small concentrations of salt or minerals should not be
used in the cooling system. Salt facilitates corrosion and minerals deposited on the
coolant passage walls. Both processes inhibit proper cooling.
3.
Air circulation around the engine and battery must not be restricted. Keep air intake
and exhaust openings clear of leaves, paper or other foreign matter which may restrict
air flow.
4.
Keep the engine clean of dirt, grease and other substances which inhibit heat dissipation.
5.
Use sound judgment in operating the engine. Avoid the two extremes of racing and
lugging.
Advance the throttle only enough to handle the load, yet be certain that the engine
speed is high enough to maintain adequate fan speed for cooling.
Run the engine only when engaged in work operations or when traveling the crane.
Avoid prolonged periods at idle and shut the engine down if operations are interrupted.
SANDY OR DUSTY WORK SITES
The presence of large amounts of sand or dust at the work site can contribute to
accelerated component wear. Either substance will act as an abrasive when deposited on
moving parts of the crane. The problem is combated by more frequent lubrication and by
the servicing of breathers and filters at shorter intervals. Follow the recommendations
below when operating in sand or dust on a regular basis.
1.
Keep sand and dust out of the hydraulic system by keeping the reservoir filler cap tight
and servicing the hydraulic system filters frequently.
2.
The fuel system should be kept free of sand and dust by keeping the tank filler cap
tight and servicing the fuel filters frequently.
3.
The engine breathers and air cleaner should also be serviced frequently to prevent
sand and dust from entering the engine. The engine oil and oil filter should be changed
at shorter than normal intervals to ensure a clean oil supply to the engine’s moving parts.
4.
When lubricating the crane, thoroughly clean each grease fitting before attaching the
grease gun. Pump generous amounts of grease into all lubrication points, using the
fresh grease to pump out the old.
5.
Adequate ground bearing support must be provided for the outrigger floats when
operating in sand. Be alert for signs of carrier movement during operations.
The increased frequency of lubrication and service discussed above should be
determined by observations made at the work site. Inspection will determine how long
113
P/N 12261-319 REVISED: August 2012
Summary of Contents for RT200-1
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