Komatsu PC118MR-8 Operation And Maintenance Manual page 290

GUIDE TO MAINTENANCE
Bleeding the hydraulic system
After repairing or replacing the hydraulic equipment or after removing the hydraulic piping, it is necessary to bleed
the air from the circuit. (See "BLEEDING THE HYDRAULIC SYSTEM (4-41)").
Hydraulic hose assembly
q Keep naked flames away from these fluids and avoid smoking. When O rings and gaskets are removed, clean
the sealing surfaces thoroughly and replace the O rings and gaskets with new ones. Fit the O rings and
gaskets correctly when reassembling.
q When installing the hoses, do not twist or bend them into loops with a small radius. This will cause damage to
the hose and drastically reduce its service life.
Inspections after the controls and maintenance
If you forget to perform the checks after inspection and maintenance, unexpected problems may occur, and this
may lead to serious injury or property damage. Always do the following:
q Checks after operation (with engine stopped)
Q Have any inspection and maintenance points been forgotten?
Q Have all inspection and maintenance items been performed correctly?
Q Have any tools or parts been dropped inside the machine? It is particularly dangerous if parts are dropped
inside the machine and get caught in the lever linkage mechanism.
Q Is there any coolant or oil leaks? Have all nuts and bolts been tightened?
q Checks when operating engine
Q For details of the checks when operating the engine, see "MAINTENANCE WITH ENGINE RUNNING (2-
52)" and pay careful attention to safety.
Q Are the inspection and maintenance items working properly?
Q Is there any leakage of fuel or oil when the engine speed is raised?
4-4
WEAM014802
MAINTENANCE