K1000896E Operation and Maintenance Manual Safety 1-23
DO NOT WORK ON HOT ENGINES OR HOT COOLING OR HYDRAULIC SYSTEMS
Wait for engine to cool off after normal operation. Park wheel loader on firm, level ground and lower all
equipment before shutting down and switching "OFF" controls. When engine lube oil, gearbox lubricant or
other fluids require change, wait for fluid temperatures to decrease to a moderate level before removing
drain plugs.
NOTE: Oil will drain more quickly and completely if it is warm. Do not drain fluids at temperatures
exceeding 95°C (203°F), however do not allow full cool down.
COOL DOWN IS REQUIRED BEFORE
RADIATOR OR RESERVOIR CHECKS
Shut down engine and allow heat to dissipate
before performing service on engine radiator or
hydraulic fluid reservoir. Both assemblies have
air vent levers at or near fill cap for venting
built-up air pressure. Release levers before
trying to take off fill caps and LOOSEN CAPS
SLOWLY, before removal.
PRECAUTIONS WITH HIGH-PRESSURE LINE, TUBES AND HOSES
When inspecting or replacing high-pressure piping or hoses, check that the pressure has been released
from the circuit. Failure to release the pressure may lead to serious injury. Always do the following;
• Wear protective glasses and leather gloves.
• Fluid leaks from hydraulic hoses or pressurized components can be difficult to see but
pressurized oil has enough force to pierce the skin and cause serious injury. Always use a piece
of wood or cardboard to check for suspected hydraulic leaks. Never use your hands or expose
your fingers.
• Do not bend high-pressure lines. Do not strike high-pressure lines. Do not install lines, tubes or
hoses that are bent or damaged.
• Make sure that all clamps, guards and heat shields are installed correctly to prevent vibration,
rubbing against other parts, and excessive heat during operation.
– If any of the following conditions are found, replace the part.
– Damage or leakage from hose end.
– Wear, damage, cutting of covering, or exposure of strengthening wire layer.
– Cover portion is swollen in places.
– There is twisting or crushing at movable parts of hose.
– Foreign material is embedded in the covering.
– Hose end is deformed.
NOTE: Refer to “Hose In-service Lifetime Limit (European Standard ISO 8331 and EN982 CEN)”
on page 4-56, for additional European regulations.
HAOA060L
Figure 21
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