Komatsu PC210LC-6 User Manual

TROUBLESHOOTING
M-26
M-26 Wiper does not work or switch is not being used but wiper is
actuated
a) Wiper does not work
* Check that fuse 7 is normal.
Wo8 (I) and (5)
Is resistance
between Ml8
H
(female) (1) - (2).
(1) - (4) as shown
in Table l?
l Turn starting
switch OFF.
NC
,
Is resistance
m between WlO
1 1 * Disconnect M18.
l 20-30V
- (male) (3) (4) - W08 - ' Turn starting
switch ON.
NO
1
(4) (18) normal?
Is resistance
. Max. 1 Q
between WlO _ - Turn starting
(ferr;lej (3) and (4)
switch OFF.
NO
l Disconnect WIO,
W08.
l Front window
closed position:
Min. 1 MR
- Turn starting
NO
switch OFF.
* Disconnect WlO.
A-c-
Table 1
n
5
Is resistance between
each pin of Ml8
1
(female) (1) (2) (4) and
W08 (female) (l2lI14)
‘1;“) as shown In Table
b Turn starting
switch OFF.
* ~,inect M18,
6
Is voltage of each
pin of W04 as
shown in Table 3?
I
l Turn starting
1
switch ON.
NC
7YEs
Is resistance
between each pin
H
of W04 (male) -
W08 (female) as
shown in Table 2?
..^
)
1
l T$;c;t;rrng
NW
l zinect W04,
I3
0
,
f
Actuation mode Ml8 (female)
W08 (female)
Resistance
Between (1) - (4) Between (12) - (15)
Max. 1 Q
INT mode
Between (1) - (2) Between (12) - (14)
.Between (2) - (4) Between (14) - (15)
Min , MR
Between (1) - (2) Between (12) - (14)
OFF mode
Between (I) - (4) Between (12) - (15)
Min 1 MQ
Between (2) - (4) Between (14) - (15)
Between (1) - (2) Between (12) - (14)
Max. 1 R
ON mode
Between (1) - (4) Between (12) - (15)
Between (2) - (4) Between (14) - (15)
Min , MR
Table.2
Cause
Remedy
- GotoA
Defective wiper washer
switch
Defective contact, or
disconnection in wiring
harness between fuse (7) -
W08 (female) (51, between
Ftl8 pNyle) (1). (8) - HO6
Defective contact, or
disconnection in wiring
harness between Ml0 (male)
(3) (4) - W08 (female) (4) (18)
p Defective rear limit switch
I Front window is open
Defective wiper motor
Defective wiper motor
controller
Contact between wiring
harnesses of system with
defective resistance
Contact of wiring harness
between Ml8 (male) (1) (2)
;;;,,:I; (y(l$E~l- WO8
leplace
lepair or
eplace
tepair or
aplace
Replace
%S~;~~ow in
comsctly.
leplace
leplace
lepair or
eplace
Iepair or
eplace
Between W04 (female) (1) - W08 (female) (7)
Between W04 (female) (3) - W08 (female) (6)
Between W04 (female) (4) - W08 (female) (11)
Beb,veen W04 (female) (5) - W08 (female) (9)
Between W04 (female) (6) - W08 (female) (10)
Between W04 (female) (l)(3)(4)(5)(6) - GND
20-270
0
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Komatsu PC210LC-6 Specifications

General

Brand	Komatsu
Model	PC210LC-6
Category	Excavators
Language	English