Lull 944E-42 Operation Manual - Manual (Page 103)

Emergency Operations
101 Model 944E Origin 3/04
5. Replace the failed hydraulic line with a new part.
ï Boom Extend Line - Extend Cylinder to Block (1)
ï Boom Retract Line - Extend Cylinder to Block (2)
ï Boom Extend Line - Block to Frame Bulkhead (3)
ï Boom Retract Line - Block to Frame Bulkhead (4)
ï Boom Lower Line - Lift Cylinder to Block (5)
ï Boom Lift Line - Lift Cylinder to Block (6)
ï Boom Lower Line - Block to Frame Bulkhead (7)
ï Boom Lift Line - Block to Frame Bulkhead (8)
6. Check the hydraulic oil level, add oil if needed.
7. Remove the blocking or support from the outer boom.
8. Return to the cab, fasten your seat belt and start the engine.
9. Tilt the carriage upward, if necessary, for clearance before retracting the
boom. It may also be necessary to lift the boom up slightly, if possible, to
gain clearance.
10. Slowly retract the boom.
11. Slowly lower the boom and ground the carriage.
12. Shut off the engine.
13. Completely remove the load from the carriage, if you havenít already done
so.
14. Return to the cab, fasten your seat belt and start the engine.
15. Cycle the lift/lower and extend/retract cylinders several times to bleed air
from the system. Check for leaks.
16. Recheck the hydraulic oil level. Add oil if necessary.
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