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MAINTENANCE
SAFETY CRITICAL PARTS
SAFETY CRITICAL PARTS LIST
No. Safety critical parts for periodic replacement Q'ty Replacement interval
1 Fuel hose (fuel tank - fuel pre-fillter) 1
Every 2 years or 4000 hours,
whichever comes sooner
2 Fuel hose (fuel pre-fillter - supply pump) 1
3 Fuel return hose, cooler (engine - fuel cooler) 1
4 Fuel return hose (fuel cooler - fuel tank) 1
5 Fuel hose (supply pump - fuel main fillter) 2
6
Fuel return tube
(injector, supply pump, fuel return merge tube from common rail)
1
7 Pump outlet hose (pump - control valve) 2
8 Work equipment hose (boom cylinder inlet port) 4
9 Work equipment hose (bucket cylinder line, boom foot) 2
10 Work equipment hose (bucket cylinder inlet port 2
11 Work equipment hose (arm cylinder line, boom foot) 2
12 Work equipment hose (arm cylinder inlet port) 2
13 Attachment additional line hose (boom foot) 2
14 Attachment additional line hose (boom top) 2
15 Swing line hose (swing motor inlet port) 2
16 Main suction hose 1
17 Heater hose 2
18 Travel line hose (control valve - swivel joint) 4
19 Travel line hose (swivel joint - travel motor) 4
20 Accumulator (for control circuit ) 1
21 Pump LS hose 2
22 Pump pressure hose 1
23 Accumulator (for PPC) 1
24 High-pressure piping clamp 2
Every 8000 hours
25 Fuel spray prevention cap 14
26 Seat belt 1
Every 3 years after beginning
to use or 5 years after
manufacturing of seat belt,
whichever comes sooner
4 - 14
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