Machine Operation On The Haul Road - Komatsu 830E-AC Shop Manual

3. Check gauges and instruments frequently dur-
ing operation for proper readings.
4. Observe all regulations pertaining to the job
site's traffic patterns. Be alert to any unusual
traffic patterns. Obey the spotter's signals.
5. Match the truck speed to haul road conditions
and slow the truck in congested areas. Keep a
firm grip on the steering wheel at all times.
6. DO NOT allow the engine to run at idle for
extended periods of time.
7. Check the brake lock performance periodically
to ensure safe loading and dumping.
DO NOT use the brake lock for parking. When the
engine is turned off, hydraulic pressure will bleed
down, allowing the brakes to release!
8. Proceed slowly on rough terrain to avoid deep
ruts or large obstacles. Avoid traveling close to
soft edges and near the edges of a fill area.
9. Truck operation requires a concentrated effort
by the driver. Avoid distractions of any kind
while operating the truck.
MACHINE OPERATION ON THE HAUL
ROAD
1. Always stay alert! If unfamiliar with the haul
road, drive with extreme caution. Cab doors
must remain closed at all times if the truck is in
motion or unattended.
2. Obey all road signs. Keep the truck under con-
trol at all times. Govern truck speed by the road
conditions, weather and visibility. Report poor
haul road conditions immediately. Muddy or icy
roads, pot holes or other obstructions can
present hazards.
3. Initial propulsion with a loaded truck should
begin from a level surface whenever possible.
At times, starting on a hill or grade cannot be
avoided. Refer to Starting On A Grade With A
Loaded Truck later in this chapter.
A03030 3/06 General Safety and Operating Instructions
4. Before traveling in reverse, give a back-up sig-
nal of three blasts on the horn. Before starting
forward, signal with two blasts on the horn.
These signals must be given each time the
truck is moved forward or backward.
5. Use extreme caution when approaching a haul
road intersection. Maintain a safe distance from
oncoming vehicles.
6. Maintain a safe distance when following
another vehicle. Never approach another vehi-
cle from the rear, in the same lane, closer than
15 m (50 ft). When driving on a down grade, this
distance should not be less than 30 m (100 ft).
7. DO NOT stop or park on a haul road unless
unavoidable. If the truck must be stopped on a
haul road, park in a safe place, move the direc-
tional control lever to PARK, and shut the
engine off before leaving the cab. Block the
wheels securely and notify maintenance per-
sonnel for assistance.
8. While driving on a slope, maintain a speed that
will ensure safe driving and provide effective
retarding under all conditions (Refer to Dynamic
Retarding, in Section 32 Operator Cab Con-
trols.) The grade/speed retard chart in the oper-
ator's cab should always be referenced to
determine maximum safe truck speeds for
descending various grades with a loaded truck.
9. When operating the truck in darkness, or when
visibility is poor, DO NOT move the truck unless
all headlights, clearance lights, and tail lights
are on. DO NOT back the truck if the back-up
horn or lights are inoperative. Always dim the
headlights when approaching oncoming vehi-
cles.
10. If the emergency steering light and/or low brake
pressure warning light illuminate during opera-
tion, immediately steer the truck to a safe stop-
ping area, away from other traffic if possible.
Refer to item 7 above.
11. Check the tires for proper inflation during each
shift. If the truck has been operating on a flat or
under-inflated tire, the truck must remain out-
side of any buildings until the tire cools.
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