Engine Start-Up Safety Practices - Komatsu 830E-AC Shop Manual

ENGINE START-UP SAFETY PRACTICES

Never attempt to start the engine by shorting
across the cranking motor terminals. This may
cause a fire, or serious injury or death to anyone
in the machine's path.
Start the engine from the operator's seat only.
1. Ensure all personnel are clear of the truck
before starting the engine. Always sound the
horn as a warning before actuating any opera-
tional controls. If the truck is in an enclosure,
ensure there is adequate ventilation before
start-up. Exhaust fumes are dangerous!
2. The directional control lever must be in the
PARK position before starting.
NOTE: The park brake will always be applied
whenever the directional control lever is in the park
position.
Move the rest switch to the ON position to put
the drive system in rest mode of operation.
Refer to discussion of the rest switch in Section
32, Operator Cab Controls.
3. If the truck is equipped with auxiliary cold
weather heater system(s), DO NOT attempt to
start the engine while the heaters are in opera-
tion. Damage to coolant heaters will result!
A03030 3/06
Starting fluid is extremely volatile and flammable!
Use with extreme care.
If truck is equipped with optional engine starting aid
and ambient temperature is below 10°C (50°F), turn
the key switch to the START position, and while
cranking the engine, move the engine starting aid
switch to the ON position for three seconds MAXI-
MUM, then release engine starting aid. If the engine
does not start, wait at least 15 seconds before
repeating the procedure.
DO NOT crank electric cranking motors for more
than 30 seconds. Allow two minutes for cooling
before attempting to start the engine again.
Severe damage to the cranking motors may
result from overheating.
NOTE: This truck is equipped with an engine prelube
system. With this feature, a noticeable time delay
may occur (while engine lube oil passages are being
filled and pressurized) before engine cranking will
begin.
General Safety and Operating Instructions
4. The key switch is a three position (OFF, RUN,
START) switch. When the switch is rotated one
position clockwise, it is in the RUN position and
all electrical circuits (except START) are acti-
vated.
a. Turn key switch to the RUN (not START)
position.
b. With the directional control lever in PARK,
rotate the key switch fully clockwise to the
START position, and hold this position until
the engine starts (see NOTE below). The
START position is spring-loaded and will
return to RUN when the key is released.
c. After the engine has started, place the rest
switch in the OFF position to enable the drive
system. Refer to the discussion on the rest
switch, in 32, Operator Cab Controls.
A3-25