
70 SEBU8213-04
Operation Section
Engine Starting
For starting be
low −18°C (0°F), the use of one of the
following cold weather starting aids is recommended:
•
Coolant heate
r
•
Fuel heater
•
Jacket water heater
•
Extra batte
ry capacity
Reference: At temperatures below −23°C (−10°F),
consult you
r Caterpillar dealer for additional
information or refer to Special Publication,
SEBU5898, “Cold Weather Recommendations for
all Caterp
illar Machines”.
i02801522
Engine and M ach ine Warm-Up
SMCS Code: 1000; 7000
NOTICE
Keep the engine speed slow until the indicator light for
the engine oil pressure goes out.
If the light does not go out within ten seconds, stop
the engine and investigate the cause before starting
the engine again. Failure to correct the problem can
cause engine damage.
1. Allow the engine to warm up at low idle.
2. Look at the indicators and the gauges frequently
during operation.
Note: During extreme cold conditions, the alert
indicator for the hydraulic oil filter bypass may come
on. As the hydraulic oil warms up, the alert indicator
should go out.
Also, in order to help the hydraulic oil to warm up,
hold the bulldozer blade control lever in the LIFT
position for periods of ten seconds or less. This
will allow the hydraulic oil to reach relief pressure,
which causes the hydraulic oil to warm up more
rapidly.
Cycle all controls in order to allow warm hydraulic
oil to circulate through all hydraulic cylinders and
through all hydraulic lines.
When you idle the machine for warm-up, observe
the following recommendations:
•
If the temperature is greater than 0°C (32°F),
warm up the engine for approximately 5
minutes.
•
If the temperature is less than 0°C (32°F), warm
up the engine for approximately 15 minutes.
•
If the temperature is less than − 18°C (0°F) or if
hydraulic functions are sluggish, additional time
may be required.