Boom
3.24
Model 644E-42/944E-42
Rev. 6/04
Note: If you are replacing the outer boom with a new
outer boom, also remove the following items in Step 18.
18. Remove the capscrews (1), spacers (2), washers
(3), nut (4) and boom angle indicator (5).
19. Inspect the boom and welds. Contact your local Lull
distributor or the JLG Service Department, if
structural damage is detected.
20. Inspect hoses, hardware, wear pads, mounting
points, chains, and other components visible with the
outer boom removed. Replace if damaged.
b. Outer Boom Installation
IMPORTANT: Light lubrication of the boom wear
surfaces with a rust inhibitor/lubricant such as LPS 3, or
equivalent is recommended to keep the boom wear
surfaces lubricated properly. Light lubrication of the
boom wear surfaces is also recommended in salt air
climates, and when the vehicle is stored, to help prevent
rusting.
Note: The 644E outer boom weighs 1,800 lbs (800 kg).
The 944E outer boom weighs 1,910 lbs (865 kg).
1. Use a suitable overhead lifting device and sling
attached to the loop (6) on back of the outer boom.
Attach another sling around the outer boom near the
front and secure it to the hoist. Remove slack from
the slings.
2. Carefully place the outer boom into position on the
vehicle transfer carriage.
3. Install the boom pivot pin (7) and the number of
shims washers (8) as previously noted in the
removal procedure. DO NOT coat the boom pivot
pins with anti-seize compound.
Add or remove shims as required until a maximum
total gap of 0.09" (2,3 mm) is obtained. Balance the
number and thickness of shims equally on both
sides. If an additional (odd) shim must be added to
obtain the proper gap, add to the right side of the
boom.
WARNING:
NEVER weld or drill the
boom or frame. Failure to comply can result in
death or severe personal injury.
MU1320
1
2
3
4
5
WARNING:
Wear protective footwear
with reinforced toe caps and slip-resistant
soles. Failure to comply can result in foot or
other bodily injury from slipping or falling.
WARNING:
NEVER lift a heavy object
without the help of at least one assistant or a
suitable sling and hoist. Failure to comply can
result in death or serious personal injury.
Содержание 944E-42
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