Komatsu PC200-8M0 Shop Manual page 666

SEN06134-00
Reference for troubleshooting of CA778 (107 se-
ries engine)
Checking camshaft ring for loose installation
Remove the front cover and check the camshaft ring
for looseness.
a See "Removal and installation of front seal" in
Disassembly and assembly.
a Keep the front seal, liquid gasket LG-7 and front
seal tool (795-799-6400) on hand.
Removal
1. Remove the fan and fan belt. For details, see
"Removal and installation of front seal" in Disas-
sembly and assembly.
2. Remove damper assembly (1).
(DP): Dowel pin
3. Remove front cover (2).
4. Remove front seal (3).
(RING): Ring
46
40-302
302 Troubleshooting by failure code, Part 2
Failure code [CA778] Eng Bkup Speed Sensor Error
5. Check mounting bolt (4) of camshaft ring (5) for
looseness.
3
Mounting bolt (4):
(DP): Dowel pin
Installation
a See the figures in "Removal" for installation.
1. Install front cover (2).
3
Front cover:
2. Install the front seal according to the following
procedure. For details, see "Removal and instal-
lation of front seal" in Disassembly and
assembly.
1) Install front seal (3).
2) Install the damper assembly with the dowel
pin (DP).
3) Install fan belt, and install the fan.
4) Install the cooling system assembly.
PC200, 200LC, 220, 220LC-8M0
10 ± 2 Nm
Liquid gasket (LG-7)