TM 9-4940-568-34
3-68
3-18. LIFT CYLINDER REPLACEMENT (Continued)
b.
Installation
WARNING
To
prevent
personal
injury,
extreme care must be taken to
properly handle heavy overhead
objects. Make sure all slings and
straps are safe to use and are
secured properly. Make sure there
are no obstacles in the way. Keep
clear of all suspended loads.
(1) With help from assistant, attach lifting
device to lift cylinder (18) and install lift
cylinder (18) in boom assembly (31) with
pivot shaft (30).
(2) Install rivet eyebolt (29) in pivot shaft
(30).
(3) Apply sealing compound to threads of
screw (26).
(4) Install bushing (28), washer (27), and
screw (26) in rivet eyebolt (29).
(5) Tighten screw (26) to 135 lb-ft (183
N.m).
NOTE
Perform Step (6) if installing
same lift cylinder (18) and use
same number of shims (25) that
were removed during removal.
Perform Steps (7 and 8) if
installing new lift cylinder.
(6) With help from assistant, install lift
cylinder (18) and shims (25) in turntable
(24) with pivot shaft (23).
(7) With help from assistant, lower lift
cylinder (18) and ensure lift cylinder (18)
is not making contact with turntable
(24). If lift cylinder (18) is making
contact with turntable (24), remove pivot
shaft (23) and install shims (25) as
required to maintain clearance between
lift cylinder (18) and turntable (24).
(8) Install rivet eyebolt (22) in pivot shaft
(23).
(9) Apply sealing compound to threads of
screw (19).
(10) Install bushing (21), washer (20), and
screw (19) in rivet eyebolt (22). Tighten
screw (19) to 135 lb-ft (183 N.m).
31
18
19
2021
22
23
24
25
26
27
28
29
30
18
