Use Of The Engine During Maintenance Operations; Periodical Change Of The Parts That Are Critical For Safety; Stop The Engine Before Carrying Out Any Maintenance Operation; Or Inspection - Komatsu PC27R-8 Operation & Maintenance Manual

2.8.7 USE OF THE ENGINE DURING MAINTENANCE OPERATIONS

During maintenance operations, let the engine run only when indispensable. If it is necessary to have the en-
gine running (for example, to wash the cooling circuit or to check the functionality of the alternator), an operator
should constantly remain in the cab, in order to be able to stop the engine whenever necessary.
During maintenance operations with running engine, never move the control locking devices from the "lock" po-
sition or change the position of the travel levers.
Service personnel must not move any control lever.
When carrying out maintenance operations, do not touch the moving parts of the machine and avoid wearing
large and loose clothes.
2.8.8 PERIODICAL CHANGE OF THE PARTS THAT ARE CRITICAL FOR
SAFETY
Periodically change the following parts, which are important to prevent fires.
Fuel supply system: fuel delivery and return pipes.
Hydraulic system: main delivery pipes of the hydraulic pump.
Even if they seem to be in good conditions, these components must be periodically changed with new ones. In
fact, these components tend to deteriorate over time.
If one of these parts is defective, change or repair it even if the change interval has not elapsed yet. (See "4.6
PERIODICAL CHANGE OF THE COMPONENTS CONNECTED WITH SAFETY).
2.8.9 STOP THE ENGINE BEFORE CAR-
RYING OUT ANY MAINTENANCE
OPERATION OR INSPECTION
Stop the machine only on firm and level ground and stop the
engine before carrying out any maintenance operation or in-
spection.
If the engine must turn during a maintenance operation, shift
the safety device lever to the LOCK position and carry out the
maintenance operation with the help of another person; one
operator must remain on the machine and the words and signs
to be used must be agreed upon in advance.
The person who carries out the maintenance operation must
be very careful not to touch any moving part of the engine.
PRECAUTIONS FOR MAINTENANCE
RWA02000
RYA11740
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