Operation
Safety, Operation and Maintenance Manual - Sep 2012
4-25
SY115C9/135C/155H Crawler Hydraulic Excavator
A
B
C
CZ335-1103157
CZ335-1103247
ON
OFF
HEAT
START
MAX
MIN
a
b
c
4.2.1 Engine Preheating
When ambient temperature is below 10ºC, it is
necessary to preheat the engine before start-
ing.
1. For model SY135C8M
Turn the fuel control dial to MIN position (b),
and turn the ignition key to HEAT position
(a). At the same time, switch on the pre-
heat switch. When preheating indicator (c)
lights, engine preheating begins. See the
following table for preheating period.
Temperature (ºC)
0~10
-10~0
<-10
Preheating period
10s
20s
30s
2. For models SY115C9, SY135C8, SY
135C9 and SY155H
Turn fuel control dial to the MIN position (b).
Turn ignition key to the HEAT position (a).
The preheat indicator (c) will be on and the
engine begins preheating. The preheat in-
dicator (c) will be off after preheating. The
engine is now ready to start up.
●
After preheating, turn the ignition key to
the START position (C) to start the en-
gine.
●
If the engine fails to start, wait at least
one(1) minute before re-preheating and
restarting the engine.