Lull 944E-42 Service Manual - Manual (Page 85)

3.37 Model 644E-42/944E-42 Rev. 6/04
Boom
12. Move the extend chain clevis (11) to the next hole
toward the rear of the mounting plates. Coat the
mounting pin (10) and bore with an anti-seize
compound and reinsert the pin through the mounting
plates and the clevis. Reassemble the retaining ring
(9).
13. Return to the cab, start the engine and fully retract
the boom. Shut the vehicle OFF.
14. At the front underside of the outer boom (12), tighten
the retract chain adjustment nut (13) to remove the
excess slack from the chains.
15. Make sure that the chain system is properly
tensioned. Refer to Section 3.4.3, “Boom Chain
Tension Check,” and Section 3.4.4, “Boom Chain
Tension Adjustment.”
Note: If the extend chain still cannot be adjusted within
the range of 3.00" (76 mm) and 4.00" (102 mm) the
clevis can be repositioned into the last hole in the
mounting plates on the front of the outer boom.
16. After adjustment is complete, assemble the rear cover
to the rear of the outer boom. Install the boom rear
cover (14) using four capscrews (15) and flat washers
(16). Coat the capscrews with Loctite
®
242 (blue).
Torque to 21 - 38 lb-ft (29 - 52 Nm).
MU0210
8
9
10
11
9
MU1410
12
13
MU0170
14
15
16
15
16
16
15
16