Komatsu PC200-8M0, Shop Manual

Page: 475 / 1254

SEN06129-01
PC200, 200LC, 220, 220LC-8M0 30-103
3
103 Testing and adjusting, Part 3
Preparation work for troubleshooting of electrical system
Preparation work for
troubleshooting of electrical
system
a
When carrying out troubleshooting of an elec-
tric circuit related to the machine monitor,
e n g i n e c o n t r o l l e r , p u m p c o n t o l l e r , o r
KOMTRAX communication MODEM, expose
the related connectors according to the follow-
ing procedure.
a
Disconnect and connect the connectors having
special locking mechanisms according to the
procedure shown below.
1. Machine monitor
1) Remove the screws (three pcs.) mounting
cover (1).
a
One of the three screws is covered
with cap (2).
a
Disconnect connector P31 of the sun-
light sensor and remove cover (1).
2) Remove a mounting bolt and duct (6).
3) Insert a flat-head screwdriver in slit (3)
and pull it up around projection (4) to
remove cover (5).
4) Insert or connect troubleshooting T-adapt-
ers in or to connectors
CM01 , CM02 , and
CM04 on machine monitor (7).