Komatsu H70051 Series Operation & Maintenance Manual page 357

MAINTENANCE
• Check the DEF line for leakage.
• Remove dirt from around the aftertreatment devices.
• Check around the aftertreatment devices for gas leakage.
• Check the KCCV piping for gas leakage and oil leakage.
• Check around the SCR for exhaust gas leakage.
• Check the HST piping, transfer case, axle, hydraulic tank, hoses, and joints for oil leakage.
• Check the brake line for oil leakage.
• Check the tires, wheels, and wheel hub bolts and nuts for damage and wear, and check the mounting bolts
and nuts for looseness.
• Check the handrails and steps for breakage and loose bolts.
• Check the gauges and monitor for problem.
• Check the rear view mirror.
• Check the air cleaner mounting bolts for looseness.
• Check the battery terminals for looseness.
• Check the seat belt and mounting hardware.
• Clean the cab windows.
• Check the tires.
• Check the rims.
• Check the rear view monitor.
"METHOD FOR CHECKING BEFORE STARTING (3-153)"
• Method for checking water separator, drain water and sediment.
• Method for checking coolant level, adding coolant.
• Method for checking oil level in engine oil pan, adding oil.
• Method for checking dust indicator.
• Method for checking electric wiring.
• Method for checking fuel level, adding fuel.
• Method for checking DEF level and adding DEF.
• Method for checking tire pressure.
• Method for checking window washer fluid spouting out.
• Method for checking wiper function.
• Method for checking machine monitor.
• Method for checking horn.
• Method for checking defroster function.
• Method for checking locks.
• Method for checking alternate exit of cab.
"METHOD FOR OPERATIONS AND CHECKS AFTER STARTING ENGINE (3-180)"
• Method for checking starting condition and unusual noise of engine.
• Method for checking low-speed run and acceleration of engine.
• Method for testing parking brake.
• Method for checking brake.
• Method for checking clearance between brake pedal and floor.
• Method for checking abnormal points detected up to previous day.
• Method for Running-in the new machine.
• Method for operations after starting engine.
MAINTENANCE PROCEDURE
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