Lull 644E-42 Operation Manual - Manual (Page 78)

76 Model 644E Origin 3/04
Operation
Slow Pivot Mode
With the boom above 40 (1), the Stabil-TRAK System is now in the SLOW PIVOT
MODE (2) when the service brake pedal is not applied and the transmission is in
gear. In this mode the rear axle is UNLOCKED and is allowed to pivot but will
respond SLOWLY to changes in terrain. The Stabil-TRAK slow pivot light on the front
dash panel will be ON (3). The Stabil-TRAK lock light on the front dash panel will be
OFF (4).
The frame sway control will function normally in this mode.
To check that the Stabil-TRAK System is functioning properly, refer to the test
procedure on page 77 for the proper system function.
0000000
RPM X 100
5
10
15
30
20
25
F
1/2
E 104
176
80
248
120 °C
°F
D
r/min
OU0120
1
2
3 4