Lull 944E-42 Service Manual - Manual (Page 87)

3.39 Model 644E-42/944E-42 Rev. 6/04
Boom
5. If the extend chain clevis is in the first hole, the
locknut is fully loosened on the clevis, and the
distance is greater than 9-1/2" (241 mm); the chain
is the incorrect size. (Refer to Section 3.4.1, a.
“Inspection Guidelines.”)
6. After adjustment is complete, assemble the rear cover
to the rear of the outer boom. Install the boom rear
cover (9) using four capscrews (7) and flat
washers (8). Coat the capscrews with Loctite
®
242
(blue). Torque to 21 - 38 lb-ft (29 - 52 Nm).
Note: If the inner to intermediate boom separation
distance cannot be achieved, contact your local Lull
distributor or the JLG Service Department.
3.4.5 Boom Extend and Retract Chains
Removal and Replacement
a. Extend Chains Removal and Replacement
1. Park the vehicle on a hard, level surface.
2. Fully retract the boom and raise the boom to a
horizontal position. Place the travel select lever in
the (N) NEUTRAL DETENT position, engage the
parking brake switch and shut the engine OFF.
3. Remove four capscrews (7) and flat washers (8).
Remove the boom rear cover (9). Leave the clips
(10) attached to the cover.
MU0210
4
5
6
MU0170
7
8
9
7
8
8
7
8
10