Lull 1044C-54 Series II Operation Manual - Manual (Page 135)

Section 8 - Additional Checks
8-1 31200608
SECTION 8 - ADDITIONAL CHECKS
8.1 REAR OSCILLATION LOCK SYSTEM
A. Rear Oscillation Lock System Test
With boom raised above 20° the indicator illuminates. If indicator does not illuminate
the test was not performed properly or rear oscillation lock system is not functioning
correctly and the test should be stopped immediately. To check the indicator,
perform the following:
1. Test rear oscillation lock system on a level surface and boom fully retracted, no
load.
2. Shift transmission to neutral (6).
3. Raise boom above 20° (2). Rear oscillation lock system slow pivot mode will be
activated and indicator (4) will illuminate.
4. Lower boom below 20° (1).
5. Depress service brake pedal (5) and shift transmission into forward.
6. Raise the boom above 20°. Rear oscillation lock system slow pivot mode will be
activated and indicator will illuminate.
7. Lower boom below 20°.
8. Engage park brake switch (3).
9. Release service brake pedal.
10. Raise the boom above 20°. Rear oscillation lock system slow pivot mode will be
activated and indicator will illuminate.
11. Lower boom below 20°.
12. Shift transmission to neutral.
10
OW0970
OV0621
2
1
REAR
OSC LOCK
5
3
4
6