Komatsu ecot3 Operation And Maintenance Manual page 279

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