Handling Voltage Circuit Of Engine Controller - Komatsu PC88MR-10 Shop Manual

Handling voltage circuit of engine controller

1. Disconnecting or connecting work of the
connector between the engine controller and the
engine must be performed only when the
starting switch and disconnect switch are in OFF
position and the system operating lamp goes
out.
Before connecting the wiring harness
connector, be sure to completely remove
sand, dust, water, etc., inside the
connector on the controller side.
2. If the T-adapter is inserted in or connected to the
connector between the engine controller and
engine harness for troubleshooting, do not start
the engine.
a You may turn the starting switch to OFF or
ON position but must not turn it to START
position.
PC88MR-10
30 Testing and adjusting
(PC220-AP40-2A4-K-00-A)
Electrical system
30-127