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OM3012.1
Operating Instructions
If brake oil temperature exceeds 250
the Brake Oil Temperature Warning light will turn
on. As quickly as safety will permit, bring the
truck to a complete stop away from traffic, move
transmission range selector to "Neutral", apply the
parking brake, and run engine at high idle. Con-
tinue to run engine at high idle until Brake Oil
Temperature Warning light turns off and brake oil
temperature cools to below 250
perature does not return to this range within a few
minutes, report the condition immediately to
maintenance personnel and wait for further in-
structions before moving truck.
9. When operating truck in darkness or when visibility
is poor, do not move truck unless headlights are
on. Do not back truck if back-up horn or lights are
inoperative.
10. When backing the truck, give back-up signal (three
blasts on air horn); when starting forward, two
blasts on air horn. These signals must be given
each time the truck is moved forward or back-
ward.
11. Do not stop or park on a haul road unless unavoid-
able. If you must stop, move truck to a safe place,
apply parking brake, shut down engine, block
wheels securely and notify maintenance person-
nel for assistance.
12. If the "Emergency Steering" light and/or "Low Brake
Pressure Warning" light (if equipped) come on
during operation, steer the truck immediately to
a safe stopping area, away from other traffic if
possible. Refer to item 11 above.
13. Report haul road conditions immediately. Muddy
or icy roads, pot holes or other obstructions can
present hazards.
14. Cab doors should remain closed at all times while
truck is in motion or unattended.
15. Check for flat tires periodically during shift. If truck
has been run on a "flat", it must not be parked in
a building until the tire cools.
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.
o
o
F (121
C),
o
o
F (121
C). If tem-
DUMPING
1. Pull into dump area with extreme caution. Make
sure area is clear of persons and obstructions,
including overhead utility lines.
2. Carefully maneuver truck into dump position. 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.
As body raises, the truck Center of Gravity (CG) will
move. Truck must be on level surface to prevent
tipping / rolling!
3. When in dump position, apply the Brake Lock and
move Transmission Range Selector to the "Neu-
tral" position.
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 RAP-
IDLY and SUDDENLY. This sudden movement may
jolt the truck violently and cause possible 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 CAUTION
in the following procedure:
4. Pull the lever (depress the hoist switch release
button, if equipped) to the rear to actuate hoist
circuit. Releasing the lever anywhere during "hoist
up" will place the body in "hold" at that position.
5. Raise engine RPM to accelerate hoist speed. Refer
to the CAUTION below.
If dumping very large rocks or sticky material as
decribed in WARNING above, slowly accelerate
engine RPM to raise body. When the material starts
to move, release hoist lever to "HOLD" position. If
material does not continue moving and clear body,
repeat this procedure until material has cleared
body.
Operation - Section 3
Page 3-7
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