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

Boom
3-12 944E-42
2. Place the extend chain and clevis, as an assembly
on top of the third boom section and allow the chains
and clevis to overhang the boom head. DO NOT
allow the chain to twist or kink.
3. At the rear of the boom, attach the retract chain (10)
to the same hole in the anchor link (11) with the
previously used hardware. Loctite
® 242™ and torque
to 37-66 lb-ft (50-90 Nm).
4. Install the top, side and bottom wear pads (12) to the
rear of the third boom section.
5. Grease the sections of the boom in areas where the
wear pads will slide.
6. Using a suitable overhead lifting device and sling,
carefully slide the third boom section into the second
boom section.
7. Install the bottom wear pads at the front of the
second boom section.
8. Slide the third boom section into the second boom
section. Remove the sling.
9. Install the extend chain yoke to the third boom
section. Coat the clevis pin (13) with anti-seize
compound.
10. From the rear of the boom, push the attachment tilt
and auxiliary hydraulic hoses (14) through the third
boom section along the hose guides. Leave enough
hose out of the back of the boom for the Extend/
Retract cylinder to be installed.
11. Use a suitable overhead lifting device and sling to
carefully raise and position the Extend/Retract
cylinder into the rear of the third boom section.
Readjust the sling as needed to help balance the
cylinder in the sling during installation.
MU0261
10
11
MU5061
12
MU1211
13
MU0221
14