Komatsu 830E Shop Manual page 42

c. Move hoist lever back to the "hoist" position
to fully raise the dump body. Then release
the hoist lever so it returns to the "hold" posi-
tion.
d. Shift Selector Switch to "Forward", release
Brake Lock, depress Override button and
drive forward to clear the material. Stop, shift
Selector Switch to "Neutral", apply Brake
Lock and lower body again.
NOTE: Failure to "hoist" the body after making an
unsuccessful attempt at lowering the body may result
in the dump body suddenly lowering after the truck
has pulled ahead of the material that was previously
preventing the body from lowering.
CAUTION! The truck is not to be moved with the
dump body raised except for emergency moves
only. Failure to lower body before moving truck
may cause damage to hoist cylinders, frame and/
or body hinge pins.
10. With body returned to frame, move Selector
Switch to "Forward", release Brake Lock, and
leave dump area carefully.
SAFE PARKING PROCEDURES
The operator must continue the use of safety precau-
tions when preparing for parking and engine shut-
down.
In the event that the equipment is being worked in
consecutive shifts, any questionable truck perfor-
mance the operator may have noticed must be
checked by maintenance personnel before the truck
is released to another operator.
1. The truck should be parked on level ground, if at
all possible. If parking must be done on a
grade, the truck should be positioned at right
angles to the grade.
2. The parking brake must be applied and/or
chocks placed fore/aft of wheels so that the
truck cannot roll. Each truck should be parked
at a reasonable distance from another.
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.
A3-28
TOWING
Prior to towing a truck, many factors must be care-
fully considered. Serious personal injury and/or sig-
nificant property damage may result if important
safety practices, procedures and preparation for
moving heavy equipment are not observed. Do not
tow the truck any faster than 5 MPH (8 kph).
A disabled machine may be towed after the following
MINIMUM precautions have been taken.
General Safety and Operating Instructions
1. Shut down engine.
2. Chock wheels on disabled truck to prevent
movement while attaching tow bar.
3. If truck is equipped, install hydraulic connections
for steering and dumping between towing and
towed vehicles. Check towed vehicle for normal
braking and steering system operation.
4. Empty all material from dump body of truck that
is to be towed.
5. Inspect tow bar for adequacy (approximately 1.5
times the gross vehicle weight of truck being
towed).
6. Determine that towing vehicle has adequate
capacity to both move and stop the towed truck
under all conditions.
7. Protect both operators in the event of tow bar
failure.
8. Release disabled truck brakes and remove
blocking.
9. Sudden movement may cause tow bar failure.
Smooth and gradual truck movement is pre-
ferred.
10. Minimize tow angle at all times - NEVER
EXCEED 30° . The towed truck must be steered
in the direction of the tow bar.
A03020