Lull 944E-42 Operation Manual - Manual (Page 154)

152 Model 944E Origin 3/04
General Maintenance
3. Return to the cab, start the engine and cycle the boom all the way out and
all the way in several times.
4. Fully extend the boom, then retract it 2" (51 mm) (one inch per section).
Turn the vehicle OFF.
5. Measure the sag (1) in the top boom extend chain (2) between the bottom
of the chain and the top of the intermediate boom (3) at their closest point
(1). Acceptable boom chain sag is between 3.00" (76 mm) and 4.00"
(102 mm). If the measurement is still less than 3.00" (76 mm), the boom
chain need to be readjusted.
NOTE: If all the adjustment has been used up on the retract chain adjustment nut
and the extend chain is not within the range of 3.00" (76 mm) and 4.00" (102 mm)
the clevis at the top front of the outer boom will need to be repositioned.
OA0491
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