Safe Parking Procedures - Komatsu 830E-AC Shop Manual

SAFE PARKING PROCEDURES

The operator must continue to use safety precau-
tions when preparing for parking and stopping the
engine.
In the event that the equipment is being used in con-
secutive shifts, any questionable truck performance
the operator may have noticed must be checked by
maintenance personnel before the truck is released
to another operator.
1. Park the truck on level ground, if possible. If it is
necessary to park on a grade, the truck must be
positioned at right angles to the grade.
2. Place the directional control lever in the PARK
position. This will apply the parking brake. Then
place chocks fore/aft of the wheels so that the
truck cannot roll. Each truck should be parked
at a reasonable distance from other trucks/
equipment.
3. Haul roads are not safe parking areas. In an
emergency, pick the safest spot most visible to
other machines in the area. If the truck
becomes disabled where traffic is heavy, mark
the truck with warning flags in daylight, or flares
at night.
NORMAL ENGINE SHUTDOWN
PROCEDURE
The following procedure should be followed to stop
the engine.
1. Stop the truck out of the way of other traffic.
Park on a level surface, free of overhead power
lines or other objects that could prevent raising
the dump body.
a. Reduce engine speed to idle.
b. Place the directional control lever in PARK.
This will apply the parking brake.
c. Be sure the parking brake applied indicator
light in the overhead display panel is illumi-
nated.
A03030 3/06
NOTE: There is also an engine stop switch located at
at ground level at the right front corner of the truck.
General Safety and Operating Instructions
d. Allow the engine to cool gradually by operat-
ing at low idle for three to five minutes, or if
preferred, activate the five minute shutdown
delay timer as described on the following
page.
2. Place the rest switch in the ON position to put
the AC drive system in rest mode. Be sure the
rest indicator light in the overhead panel is illu-
minated.
3. With the engine cooled down, turn the key
switch counterclockwise to the OFF position to
stop the engine.
If the engine does not turn off with the key
switch, use the engine stop switch on operator
cab center console. Pull the switch up to stop
the engine. Push the switch back down to
enable engine operation.
4. With the key switch OFF and engine stopped,
wait at least 90 seconds. Ensure the steering
circuit is completely bled down by turning the
steering wheel back and forth several times. No
front wheel movement will occur when hydraulic
pressure is relieved. If the front tires continue to
steer after the engine is stopped, notify mainte-
nance personnel.
5. Verify all link voltage lights are off (one on the
back side of the center console inside the oper-
ator cab, two on the electrical cabinet), and
notify maintenance personnel if the lights
remain illuminated longer than five minutes
after the engine has been stopped.
6. Close and lock all windows. Remove the key
from the key switch and lock the cab to prevent
possible unauthorized truck operation. Properly
dismount the truck. Put wheel chocks in place.
A3-31