Komatsu PC88MR-10 Shop Manual page 289

Resister for PC-EPC valve
a PPC: Abbreviation for Proportional Pressure Control
a EPC: Abbreviation for Electromagnetic Proportional Control
1. Resistance
2. Connector
Specifications
(PC138-C3VR-030-K-00-A)
Resistance: 30 z
Function
(PC88MR-C3VR-042-K-00-A)
This resistor allows a proper current to flow to EPC valve, according to the condition, when the pump
secondary drive switch s turned to "ON" position.
a No current flows normally.
CAN terminating resistor
a CAN: Abbreviation for Controller Area Network
PC88MR-10
(PC138-C3VR-041-K-00-A)
(PC220-Q2V1-041-K-00-A)
10 Structure and function
Electrical control system
10-211