Table of Contents
Advertisement
MAINTENANCE
PRECAUTIONS FOR SCR ASSEMBLY
Be careful for the high temperature parts when performing inspection and maintenance. Even after the engine
stops the parts around SCR device may be at high temperature.
DUSTY JOBSITES
When working at dusty jobsites, observe the following.
•
Clean the radiator fins and other parts of the heat exchange equipment more frequently, and take care not
to let the fins become clogged.
•
Replace the fuel filter more frequently.
•
Clean electrical components, especially the starting motor and alternator, to avoid accumulation of dust.
•
When checking and replacing the oil or filters, move the machine to a place where there is no dust and take
care to prevent dust from entering the system.
AVOID MIXING OIL
Never mix different brand or grade of oil. If a different brand or grade of oil has to be added, drain the old oil and
replace all the oil with the new brand or grade of oil.
LOCK INSPECTION COVERS
Lock inspection cover securely into position with the lock bar, etc. If inspection or maintenance is performed with
inspection cover not locked in position, there is a danger that it may be suddenly shut by the wind and cause
personal injury.
BLEED AIR FROM HYDRAULIC CIRCUIT
When the hydraulic component is repaired or replaced, or the hydraulic piping is disconnected, the air must be
bled from the circuit. For bleeding air, see "METHOD FOR BLEEDING AIR FROM HYDRAULIC CIRCUIT
(4-42)".
PRECAUTIONS WHEN INSTALLING HYDRAULIC HOSES
•
When removing parts at locations where there are O-rings or gasket seals, clean the mounting surface, and
replace them with new parts.
When doing this, be careful not to forget to assemble O-rings and gaskets.
•
When installing the hoses, do not twist them or bend them sharply.
If they are installed so, their service life will be extremely shortened and they may be damaged.
CHECKS AFTER INSPECTION AND MAINTENANCE
Unexpected problems may occur if you do not perform the necessary inspection and maintenance. Always ob-
serve the following, otherwise it may lead to personal injury.
Checks after operation (with engine stopped)
•
Have any inspection and maintenance points not been forgotten?
•
Have all inspection and maintenance items been performed correctly?
•
Have any tools or parts not dropped inside the machine? It is particularly dangerous if the parts drop inside
the machine and get caught in the lever linkage mechanism.
•
Isn't there any leakage of coolant or oil? Have all nuts and bolts been tightened?
Checks while the engine is running
•
For the checks when the engine is running, see SAFETY, "TWO WORKERS FOR MAINTENANCE WHEN
ENGINE IS RUNNING (2-42)" and pay attention to safety.
•
Isn't there any fuel leakage or oil leakage when the engine speed is increased?
•
Are all the inspected and serviced parts normally operated?
FUEL AND LUBRICANTS TO MATCH THE AMBIENT TEMPERATURE
It is necessary to select fuel or lubricant according to the ambient temperature.
PRECAUTIONS FOR MAINTENANCE
4-3
Advertisement
Chapters
Table of Contents
