Lull 1044C-54 Series II Service Manual - Manual (Page 181)

Boom and Transfer
31200079 6-39
Adding or removing shims from bolted pads may require a different
capscrew length or washer selection.
Fig. 6-28: Determining Capscrew Length
(Ref. Fig. 6-28) Select a combination of capscrew length, flatwasher (if
needed), and lockwasher (spring and/or star) to obtain the required
dimension (Dimension A). This dimension will ensure that the capscrew
will not protrude past the nut insert and cause boom damage. See
Fig. 6-29. Capscrews that can be purchased from JLG come in three (3)
lengths (3/4", 1", and 1-1/4").
Clearance is measured from under the capscrew head to the lockwasher.
A lockwasher must always be used under the capscrew head.
Apply nonpermanent thread locking compound to the first few threads of
the capscrew before final installation.
Fig. 6-29: Correctly Installed Capscrew
(Ref. Fig. 6-29) The end of the installed capscrew should be flush with, or
just beneath, the inner edge of the nut insert.
Dimension A
Bolted Pad
Nut Insert
Washer
Capscrew
Boom
Lockwasher
J1034
Pad Number Dimension A
39023A
39024A
39530A
39594A
39604A 0.28"–0.33"
0.39"–0.44"
0.39"–0.44"
0.39"–0.44"
0.21"–0.26"
Bolted Pad
Nut Insert
Bolt
Boom
J1034