Section 3- Controls and Indicators
3
-
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3.8 REAR AXLE STABILIZATION (RAS) SYSTEM
Free Pivot Mode
With boom below 40° (
1
), RAS system is in Free Pivot Mode. Rear axle pivots freely and frame
level functions normally. RAS indicator (
2
) will be off.
Slow Pivot Mode
With boom above 40° (
3
), the RAS system is in Slow Pivot Mode when service brake is not
applied and transmission is in gear. Rear axle will respond slowly to changes in terrain and
frame level functions normally. RAS indicator (
2
) will be off.
Locked Mode
With boom above 40° (
3
), and activating one or more of following functions, RAS system is in
Locked Mode.
• Park brake switch engaged
• Transmission control lever in Neutral
• Service brake pedal depressed
The RAS indicator (
2
) will illuminate when in lock mode. When the rear axle is locked, if
frame level or outriggers functions are operated, the rear axle goes into Slow Pivot Mode.
OD
1
420
OD
1
430
RAS
RAS
STOP
1001181531A
1
3
2
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