Lull 1044C-54 Series II Operation Manual - Manual (Page 136)

Section 8 - Additional Checks
8-2 31200608
8.2 BOOM/TRANSFER EXTEND LOCK SYSTEM
A. Boom/Transfer Extend Lock System Test
Boom/transfer extend lock system operates in two modes. In locked mode, with
outriggers raised, the indicator illuminates and a sensor in the boom will stop boom
from extending past a point between the “N” and “O” extension indicators. In
unlocked mode, with outriggers lowered, the boom will extend fully. To check the
sensor and indicator, perform the following:
1. Test boom/transfer extend lock system on a level surface and boom horizontal,
no load.
2. Shift transmission to neutral (6) and engage park brake (3).
3. Raise outriggers (9).
4. Boom/transfer extend lock indicator (11) will illuminate.
5. Extend boom until it stops. Boom will stop at a point (8) between the “N” and “O”
extension indicators.
6. Retract boom.
7. Lower outriggers (10) on firm terrain.
8. Boom/transfer extend lock indicator (4) will turn off.
9. Extend boom (7) until it stops. Boom will fully extend.
10
OW0970
OV0631
9
7
8
10
3
6
BOOM/
TRANSFER EXTEND
LOCK 130
160
190
P
11