LOAD KING 80-160, Руководство оператора

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Unusual Operating Conditions
Special problems in maintenance and operation are caused by unusual conditions such as extremes in
heat, cold and humidity, high altitude, salt water, and dusty or sandy work sites. When operating under
such conditions, special precautions must be taken to prevent damage, minimize wear, and avoid
component deterioration.
EXTREME COLD
In periods of extreme cold, the problems of freeze damage, adequate lubrication and battery failure may
become particularly troublesome. With the onset of very cold weather, it is advisable to “winterize” the
crane by servicing the cooling system and switching to the lubricants recommended for cold weather
usage. Follow the recommendations in this manual when the crane must be operated in very cold
conditions.
1. To prevent freeze damage to the cooling system and cracking of the engine block or head, drain
and flush the cooling system. Clean the radiator exterior, making certain the air passages through
the core and the cooling fins are free of foreign matter.
Refill the cooling system, adding an antifreeze solution recommended by the engine manufacturer
in an amount and strength appropriate to the anticipated temperatures. A corrosion inhibitor is
recommended. Consult engine manufactures recommendation.
Never use a chromate base corrosion inhibitor when the coolant contains ethylene
glycol. Chromate base inhibitors reacting with ethylene glycol can produce chromium
hydroxide, commonly known as “green slime”. This substance reduces the heat
transfer rate and can cause serious engine overheating.
Inspect the thermostat, clamps, radiator hoses and radiator core for proper condition. Replace or
repair any cooling system component found to be defective.
2. Condensation in the fuel tank contaminates the fuel supply with water, which can freeze in the fuel
lines and block the fuel flow to the engine. To minimize this possibility, keep the tank as full as is
practical during cold weather. This may entail refilling the tank more frequently than usual, but the
inconvenience is small compared to clearing a blocked fuel line.
If water should be noticed in the fuel supply, drain the tank and refill it with uncontaminated fuel.
3. Lubricate the crane with the lubricants recommended for cold weather operation on the Lubrication
Chart. If necessary, change the engine oil and other lubricants in order to con- form to the
recommendations.
4. The battery is more likely to sustain freeze damage if not kept fully charged because its electrolyte
will freeze at a higher temperature than that in a fully charged battery. Be certain the battery is
charging when the engine is running and use an external charger to restore full charge when the
crane is not being operated.
The battery can discharge if snow or ice short circuits the terminals. Keep the battery posts and
cable connectors clean and dry. Remove any corrosion with a solution of soda and water.