Lull 944E-42, Service Manual

Page: 61 / 844

3.15 Model 644E-42/944E-42 Rev. 6/04
Boom
25. Working from the rear of the boom, move the
attachment tilt and auxiliary hydraulic hoses (10) until
there is approximately a 0.5" (12 mm) gap between the
Extend/Retract cylinder trunnion (11) and the hoses.
Note: If you are installing new hydraulic hoses, the hose
clamps should be connected to the hoses at the white
marks (12) on the hoses.
26. Coat the four capscrews with Loctite
®
242 (blue).
Connect the attachment tilt hose clamp (13) and
auxiliary hydraulic hose clamp (14) to their mounting
brackets at the rear of the intermediate boom.
Torque capscrews to, 4 - 8 lb-ft (6 - 11 Nm).
Note: ALWAYS use new o-rings when servicing the
vehicle.
27. Install new o-rings into the fittings. Lubricate o-rings
with clean hydraulic oil.
28. Remove the plugs and caps from the hoses and
fittings and connect the extend (15) and retract (16)
hoses to the Extend/Retract cylinder (17). Torque
extend hose (15) connection to, 90 - 100 lb-ft
(125 - 135 Nm). Torque retract hose (16) connection
to 35 - 45 lb-ft (50 - 60 Nm).
MU4830
10
11
12
MU0240
13 14
MU0220
15 16
17