OPERATION UNDER USUAL CONDITIONS - CONTINUED
OPERATE STEERING (TRACTOR-SCRAPER COMBINATION)
Operator controls machine steering using steering wheel to operate steering system.
Avoid over steering. Become familiar with steering characteristics of machine before attempting maneuvers in limited
Tractor-scraper has no secondary steering system.
In the event of steering system failure, perform the following:
Attempt to steer machine to a safe location and stop. Apply parking brake.
Shut down engine and troubleshoot malfunction.
Do NOT operate machine until problem has been corrected.
OPERATE SKID STEERING (TRACTOR SECTIONALIZED)
Skid steering is used to steer tractor after it has been sectionalized, in preparation for external air transport by CH-47 heli-
copter and is suitable for nominally level terrain. Use 1st gear forward and reverse only when skid steering.
Skid steering is enabled when electrical disconnect is made between tractor and scraper during sectionalization.
It is disabled after electrical connection is made between tractor and scraper, during assembly of machine.
To operate skid steering, follow the instructions of ground guide and perform the following:
Push skid steer control lever to right to turn right.
Pull control to left to turn left.
Control will return to center position automatically.
BE ALERT for personnel in the area while operating machine. Always check to ensure area is clear of person-
nel and obstructions before starting engine, moving machine or lowering or raising scraper bowl. Failure to fol-
low this warning may result in serious injury or death to personnel or damage to equipment.
DO NOT allow riders on machine. Failure to follow this warning may result in serious injury or death to per-
Transport by C-130 aircraft, CH-47 helicopter, OCONUS rail, and some over-the-road transport requires
removal of ROPS/FOPS and temporary operation of machine without ROPS/FOPS. Avoid all operations that
may tip machine. Failure to follow this warning may result in serious injury or death to personnel.
Make sure that personnel are clear of machine before starting engine, moving out or before lowering or raising
Keep machine under control at all times. Do NOT coast or overspeed engine.
Avoid driving close to edge of excavations, overhangs, cliffs, etc.
Avoid operating machine on a severe side slope. When possible, operate up and down slopes. Maximum side slope
operation (1st gear forward and reverse) +/- 20% loaded or 35% side slope empty.
Reduce engine speed when maneuvering in tight quarters or when going over a hill. Slow down to negotiate ditches,
potholes, bumps or any other unexpected obstructions.