Komatsu WA500-6H, Operation & Maintenance Manual

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4.6 Periodic replacement of safety critical parts
Torque list
Maintenance
4-22
WA500-6H – VEAM430100
No. Safety critical parts for periodic replacement Q’ty
Replacement
interval
1 Fuel hose (fuel tank - fuel pre-filter) 1
Every
2 years or
every 4000
hours
2 Fuel hose (Fuel pre-filter - hand pump) 1
3 Fuel hose (feed pump - controller cooling) 1
4 Fuel hose (controller cooling - fuel filter) 1
5 Fuel hose (fuel injection pump return) 1
6 Fuel hose (fuel spill return) 1
7 Steering hose (pump - steering valve) 1
8 Steering hose (steering valve -joint) 2
9 Steering hose (joint - steering cylinder) 4
10 Steering hose (steering valve - stop valve) 2
11 Steering hose (orbitrol valve - stop valve 2
12 Steering hose (orbitrol valve - charge valve) 1
13 Steering hose (orbitrol valve - joint to tnak) 1
14 Brake hose (pump - accumulator charge valve) 2
15 Brake hose (accumulator charge valve - accumulator) 2
16 Brake hose (accumulator - brake valve) 4
17 Brake hose (brake valve - front brake) 3
18 Brake hose (brake valve - rear brake) 4
19 Brake hose (brake valve - hydraulic tank) 1
20
Brake hose
(brake accumulator - reduction valve for emergencyb parking brake cancel)
1
21 Brake hose (transmission valve - reduction valve) 1
22 Brake hose (reduction valve - parking brake chamber) 1
23 Brake hose (reduction valve - charge valve drain) 1
24 High-pressure piping clamp 15
Every 8000
hours
25 Fuel spray prevention cap 16