Starting On A Grade With A Loaded Truck - Komatsu 830E-AC Shop Manual

STARTING ON A GRADE WITH A LOADED
TRUCK
Initial propulsion with a loaded truck should begin
from a level surface whenever possible. There are
circumstances when starting on a hill or grade cannot
be avoided. In these instances use the following pro-
cedure:
1. Fully depress the service brake pedal (DO NOT
use retarder lever) to hold the truck on the
grade. With the service brakes fully applied,
move the directional control lever to a drive
position (FORWARD/REVERSE) and increase
engine rpm with the throttle pedal.
2. As engine rpm approaches maximum, and
when propulsion effort is felt working against
the brakes, release the brakes and allow truck
movement. Be sure to completely release the
service brake pedal. As truck speed increases
above 5-8 kph (3-5 mph) the PSC will drop pro-
pulsion if the retarder is still applied.
NOTE: Releasing and reapplying dynamic retarding
during a hill start will result in loss of propulsion.
PASSING
1. DO NOT pass another truck on a hill or on a
blind curve!
2. Before passing, ensure 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.
A3-28
LOADING
DUMPING
Raising The Dump Body
As the body raises, the truck center of gravity will
move. The truck must be on level surface to pre-
vent tipping/rolling!
General Safety and Operating Instructions
1. Approach the loading area with caution.
Remain at a safe distance while the truck
ahead is being loaded.
2. DO NOT drive over unprotected power cables.
3. When approaching or leaving a loading area,
watch for other vehicles and for personnel work-
ing in the area.
4. When pulling in under a loader or shovel, follow
the spotter's or the shovel operator's signals.
The truck operator may speed up loading by
observing the location and loading cycle of the
truck being loaded ahead, and then following a
similar pattern.
5. During loading, the operator must stay in the
truck cab with the engine running. Place the
directional control lever in NEUTRAL and apply
the brake lock.
6. When loaded, pull away from the shovel as
quickly as possible with extreme caution.
1. Approach the dump area with extreme caution.
Ensure the area is clear of persons and
obstructions, including overhead utility lines.
Obey signals as directed by the spotter, if
present.
2. Avoid unstable areas. Keep a safe distance
from the edge of the dump area. Position the
truck on a solid, level surface before dumping.
3. Carefully maneuver the truck into the dump
position. When backing the truck into the dump
position, use only the brake pedal to stop and
hold the truck; DO NOT rely on the brake lock to
stop the truck; this control is not modulated and
applies the rear service brakes only.
3/06 A03030