Komatsu 830E Shop Manual page 40

STARTING ON A GRADE WITH A
LOADED TRUCK
Initial propulsion with a loaded truck should begin
from a level surface whenever possible, but when
there are circumstances where the starting on a hill
or grade cannot be avoided, use the following proce-
dure:
1. With service brakes fully applied, move the
selector switch to a drive position (Forward/
Reverse). If equipped with a dual function
retarder/service pedal, fully depress pedal to
hold the truck on the grade. Depress the over-
ride switch on the center console and increase
engine RPM with throttle pedal.
2. As engine RPM increases and operator senses
propulsion effort working against the brakes,
release the brakes and let truck movement
start. If equipped with a dual function retarder/
service pedal, be sure to completely release the
pedal. As truck starts to move, release the over-
ride switch.
NOTE: As truck speed increases above 3-5 MPH (5-
8 KPH) the Statex III system will drop propulsion if
the retarder pedal is still applied.
PASSING
1. Do not pass another truck on a hill or blind
curve!
2. Before passing, make sure the road ahead is
clear. If a disabled truck is blocking your lane,
slow down and pass with extreme caution.
3. Use only the areas designated for passing.
LOADING
1. Pull into the loading area with caution. Remain
at a safe distance while truck ahead is being
loaded.
2. Do not drive over unprotected power cables.
3. When approaching or leaving a loading area,
watch out for other vehicles and for personnel
working in the area.
4. When pulling in under a loader or shovel, follow
"Spotter" or "Shovel Operator" signals. The
truck operator may speed up loading operations
by observing the location and loading cycle of
the truck being loaded ahead, then follow a sim-
ilar pattern.
A3-26
DUMPING
As the body raises, the truck Center of Gravity
(CG) will move. Truck must be on level surface to
prevent tipping / rolling!
To Raise dump body:
The dumping of very large rocks (10% of payload,
or greater) or sticky material (loads that do not
flow freely from the body) may allow the material
to move too fast and cause the body to move
RAPIDLY and SUDDENLY. This sudden move-
ment may jolt the truck violently and cause pos-
sible injury to the operator, and/or damage to the
hoist cylinders, frame, and/or body hinge pins. If
it is necessary to dump this kind of material, refer
to the WARNING in the following procedure:
General Safety and Operating Instructions
5. When being loaded, operator should stay in
truck cab with engine running. Place Selector
Switch in "Neutral" and apply Wheel Brake
Lock.
6. When loaded, pull away from shovel as quickly
as possible but with extreme caution.
1. Pull into dump area with extreme caution. Make
sure area is clear of persons and obstructions,
including overhead utility lines. Obey signals
directed by the spotter, if present.
Avoid unstable areas. Stay a safe distance
from edge of dump area. Position truck on a
solid, level surface before dumping.
2. Carefully maneuver truck into dump position.
DO NOT rely on Wheel Brake Lock to stop
truck; this control is not modulated and applies
REAR SERVICE BRAKES ONLY.
3. When truck is stopped and in dump position,
apply Wheel Brake Lock and move the Selector
Switch to the "Neutral" position.
A03020