
SEBU7494-06 65
Operation Section
Engine Starting
Engine Starting
i02404494
Engine Starting
SMCS Code: 1000; 7000
Do not use aerosol types of starting aids such as
ether . Such use could result in an explosion and
personal injury.
It is important to prepare the machine for operation
in temperatures that are below 0 °C (32 °F). It
is also important to follow the appropriate warm
up procedures when the machine is operated in
temperatures that are below 0 °C (32 °F).
Machine preparation for cold weather includes
using the correct hydraulic system oil. The factory
fills the hydraulic system with 10W hydraulic oil
which has a minimum operating temperature of
−20 °C (−4 °F). If the machine will be operated at
temperatures below −20 °C (−4 °F), the 10W oil
must be replaced with 0W30 hydraulic oil in order to
provide the proper oil viscosity. Refer to Operation
and Maintenance Manual, “Lubricant Viscosities
and Refill Capacities”. Refer to Operation and
Maintenance Manual, SEBU5898, “Cold Weather
Recommendations for Caterpillar Machines”. Refer
to Operation and Maintenance Manual, SEBU6250,
“Caterpillar Machine Fluids Recommendations”.
NOTICE
Keep the engine speed low until the engine oil pres-
sure ale
rt indicator goes out. If the alert indicator does
not go out within ten seconds, stop the engine and in-
vestigate the cause before starting again. Failure to
do so can
cause engine damage.
NOTICE
If the engine does not start within fifteen seconds, dis-
engage the starter. Release the glow plug switch if it is
being used. Wait for ten seconds and repeat the pro-
cedure.
NOTICE
If you fa
il to follow the steps described below , damage
to the engine or damage to the hydraulic system may
occur.
1. Fasten t
he seat belt.
2. Pull the armrest downward.
3. Move the govern
or control lever or the accelerator
pedal to half throttle.
4. Turn the engin
e start switch key to the START
position in order to start the engine. Release the
key after the engine has started.
Note: If you are starting the engine below 0 °C
(32 °F), turn the engine start switch key to the ON
position and
press the glow plug switch. Hold the
switch for ten seconds and then turn the key to the
START position. After the engine starts, continue
to press the g
low plug switch until the engine runs
smoothly.
NOTICE
Do not operat
e the glow plugs for more than 30 sec-
onds at one time. Damage to the glow plugs could oc-
cur.
5. Disengage t
he parking brake.
6. Run the engine for 5 minutes before performing
the followi
ng procedure. Run the engine at half
throttle. Hold the work tool control in the TILT
BACK position for thirty seconds. Release the
control for
thirty seconds. Hold the work tool
control in the LOWER position for thirty seconds.
Release the control for thirty seconds. Perform
the proced
ure for three minutes.
Note: If you are operating the machine below 0 °C
(32 °F), pe
rform the procedure for eight minutes.
NOTICE
Do not use the hydraulic interlock override function to
warm up the
machine.
7. Keep all personnel away from the machine. Move
the machine very slowly to an open area. Repeat
Step 6 as you move the machine back and forth
for 3 m (10 ft).
Note: More warm up time may be required if the
hydraulic functions are sluggish.