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4.6 LUBRICATION AND MAINTENANCE SCHEDULE
Safety critical parts
No.
Safety critical parts for periodic replacement
1.
Hydraulic system
1.1
High pressure hoses
1.1.1
Hoses between main pumps, pressure filters and main
control blocks
1.1.2
Hoses between manifold and return oil collector pipe (sec-
ondary relief valve lines)
1.1.3
Hoses between manifold and all attachment cylinders
1.1.4
Slew circuit hoses
1.1.5
Travel circuit hoses
1.2
Accumulator for pilot control circuit
2.
Fuel system
2.1
Fuel supply hoses
2.2
Fuel return hoses
2.3
Fuel drain hoses
2.4
Fuel refilling hoses
2.5
Fuel cooler hoses (if so equipped)
3.
Turbocharger lubrication system
3.1
Oil supply hose
3.2
Oil drain hose
4.
Seat belts
5.
Portable fire extinguishers
6.
Automatic fire detection and suppression system
258
Replacement intervals
Every 6000 operating hours or every 2
years, whichever comes first
Every 3 years
Observe the instructions on the main-
tenance sticker affixed to the fire
extinguisher container.
Follow the instructions given in the
manufacturer's maintenance manual.
MAINTENANCE
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