Lull 944E-42 Service Manual - Manual (Page 41)

3-11 944E-42
Boom
11. Install the boom proximity sensor. The gap between
the sensor and the transfer carriage should be
0.12-0.19 in (3-5 mm). Torque the inside jam nut to
33-41 lb-ft (45-55 Nm).
12. At the front of the boom, install the locknut and flat
washer to the retract chain clevis. DO NOT twist or
kink the retract chain.
3.3.5 Second Boom Section Installation
1. Install the top, side and bottom wear pads to the rear
of the second boom section.
2. Grease the sections of the boom in areas where the
wear pads will slide.
3. Use a suitable overhead lifting device and sling,
carefully lift and slide the second boom section into
the first boom section until it extends approximately
6 in (150 mm) from the front of the first boom
section.
4. At the rear of the second boom section, install the
two hose guides (7). Loctite ® 242™ and torque
capscrews to 10-19 lb-ft (14-26 Nm).
5. Install the sheave (8) and sheave pin at the rear of
the second boom section. Coat sheave pin with anti-
seize compound. Loctite
® 242™ and torque
capscrews to 36-66 lb-ft (50-90 Nm).
6. At the front of the second boom section, install the
sheave and sheave pin. Coat the sheave pin with
anti-seize compound. Loctite
® 242™ and torque
capscrews to 90-162 lb-ft (123-220 Nm).
7. Install the top, side and bottom wear pads to the
inside of the first boom section.
3.3.6 Third Boom Section Installation
1. Install the hose guide (9) to its original orientation.
Secure in place with the previously used hardware.
Loctite
® 242™ all capscrews. Torque the middle
capscrews to 10-19 lb-ft (14-26 Nm) and torque the
rear capscrews to 21-38 lb-ft (29-52 Nm).
MU4171
7
MU1431
8
MU1061
9