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Operation - Section 3
Page 3-6
4. Observe all regulations pertaining to the job site's
traffic pattern. Be alert to any unusual traffic pat-
tern. Obey the spotter's signals.
5. Match the truck speed to haul road conditions and
slow the truck in any congested area. Keep a firm
grip on steering wheel at all times.
6. Do not allow engine to run at "Idle" for extended
periods of time.
7. Check parking brake periodically during working
shift. Use parking brake for parking only. Do not
attempt to apply parking brake while truck is
moving!
8. Check brake lock performance periodically for safe
loading and dump operation.
9. Proceed slowly on rough terrain to avoid deep ruts
or large obstacles. Avoid traveling close to soft
edges and the edge of fill area.
10. Truck operation requires concentrated effort by the
driver. Avoid distractions of any kind while oper-
ating the truck.
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 similiar
pattern.
5. Operator should remain in truck cab with engine
running while truck is being loaded. Place Trans-
mission Range Selector in "Neutral" and apply
Brake Lock.
must be shut down and parking brake applied. DO
NOT use brake lock or emergency brake (if
equipped) for parking. Remain far enough away
from truck to avoid being struck by flying material.
6. When truck is loaded, pull away from shovel as
quickly as possible, but with extreme caution.
If operator must
leave truck cab dur-
ing loading, engine
HAULING
1. Always stay alert! If unfamiliar with the road, drive
with extreme caution.
2. Govern truck speed by the road conditions,
weather and visibility.
3. Operate truck so it is under control at all times.
4. Use extreme caution when approaching a haul
road intersection. Maintain a safe distance from
oncoming vehicles.
5. Obey all road signs.
6. Always dim headlights when meeting oncoming
vehicles.
7. Maintain a safe distance when following another
vehicle. Never approach another vehicle from the
rear, in the same lane, closer than 50 ft. (15 m).
When operating on a down grade, this distance
should be no closer than 100 ft. (30 m).
8. When approaching a descending grade, the op-
erator should slow the truck and select the proper
transmission gear range to maintain an engine
speed of 1650 -- 2350 RPM (green area on ta-
chometer) and the brake oil temperature below
o
o
250
F (121
C) during retarder operation.
Refer to the Grade/Speed decal in the cab above
the windshield.
Retarder Operation
When descending a grade, the operator should
apply the retarder pedal and observe both the
Tachometer and the Brake Oil Temperature
Gauge . The engine RPM must be maintained
at 1650 -- 2350 RPM (green area on tachome-
ter) and the Brake Oil Temperature must be
maintained below 250
If the operator observes that either the maximum
engine speed of 2350 RPM or the Brake Oil Tem-
o
perature of 250
F (121
ceeded, the operator should immediately move
the transmission range selector to the next lower
range and apply the service brakes until the truck
is slowed to a speed which will permit the trans-
mission to downshift to the gear range selected.
Continue this procedure to downshift to the re-
quired gear range to maintain engine speed at
1650 -- 2350 RPM and brake oil temperature below
o
o
250
F (121
C). The service brakes should be
used only long enough to slow the truck to allow
the transmission to downshift. When the proper
gear range is attained, continue using the retarder
to maintain a safe, productive speed.
OM3012.1
Operating Instructions
o
o
F (121
C).
o
C) are about to be ex-
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