OPERATION UNDER USUAL CONDITIONS - CONTINUED
LOADING SCRAPER - CONTINUED
Do NOT overload bowl. When bowl is full, slight spillage of material will be evident. If a cut boss is used,
stop cut when directed to do so by spotter.
11. When bowl is full, raise bowl slowly while you continue to drive forward in a straight line (this will result in a smoother
transition). Do NOT stop machine to raise bowl. Stop elevator while continuing to drive forward.
12. If locked, move differential lock to UNLOCK position. Accelerate to traveling speed.
Cutting edge is narrower than scraper bowl. Repeated cuttings within the same slot will result in bowl get-
ting jammed in slot. Minimum slot width should be about 1-1/2 machine width.
13. On successive passes at fill area, use straddle cutting to achieve the best results. Refer to Straddle Cutting in WP 0006 00
for further information.
Maneuver around large obstructions when traveling. Driving over large objects may damage transmission
The following instructions are intended to provide basic procedures on traveling with scraper, loaded or
Travel only on haul roads that have been authorized for your use and have been properly maintained (WP 0007 00 con-
tains information on haul road maintenance). Avoid making deep ruts in road. Travel next to previous track to reduce rut-
Loaded machines always have the right of way, unless otherwise directed by supervisor.
Speed is governed by smoothness of haul road, by favorable or adverse grades, and by underfoot conditions.
Keeping bowl low enhances stability at high speeds and on uneven roads.
"Loping" is a rhythmic up-and-down motion of the machine. Slower speeds are necessary if uneven surfaces
Travel at a safe speed for the road conditions. Use higher speeds on smooth, level surfaces. Use lower speeds for rough,
rolling surfaces or when there is traffic congestion at work site.
Use service brakes and downshift as needed and reduce machine speed and engine RPM. Reduce machine speed when
If a ground guide is encountered at blind spots or crossings, obey their signals.
Carry bowl low for best stability--but high enough so that bowl has adequate ground clearance. Under normal circum-
stances, proper travel height can be gauged by raising bowl until steering cylinders are level with the ground.
Select gear speed for downgrade that is same as gear speed needed for similar upgrade.
If machine starts to slip when traveling across a hillside, turn machine to downhill side. Turn machine to downhill side
whenever machine is unstable.