TM 10-5410-221-14/1
a. Removal. Jack assembly (10, fig. 4-21, sheet 2 of
(3) Remove drive screw (11) and disconnect end
terminal (12) as required from wire rope (13). Remove
2) shall be removed, observing the following:
wire rope.
(1) Unscrew bolt (6) from panel and remove nut (7).
(4) Remove locking screw (14) and pad (15) from
(2) Remove bolts (8) from attaching bracket and the
outer tube (21).
four flat head screws (9) from bottom of bracket.
(5) Drive out spring pin (16) and detach wrenching
Remove jack assembly (10).
stud (17), thrust washer (18).
(6) Carefully slide out lower portion of jack away from
NOTE
the outer tube (21) and remove seal (19).
Disassembly, inspection, repair and
(7) Remove packing (20) and key (25) from the
assembly instruction listed in paragraph
inside of the outer tube (21).
(8) Remove two bearing raceways (22), thrust
folding floor jack assembly.
bearing (23), and bearing support (24) from protruding
portion of lifting screw (44).
b. Installation. Using figure 4-21 as a guide, install
(9) On folding end jack assembly only: Pull dtente
the jack assembly (10, fig. 4-21, sheet 2 of 2) as follows:
pin (28) and detach base plate (32). Remove clip (31),
(1) Replace retainer nut (7, fig. 4-21, sheet 2 of 2) on
wire rope (30) and ferrules (29).
bolt (6).
(10) Remove cotter pin (33), pin (34), and two
(2) Place jack assembly (10) into position and screw
spacers (35) from inner tube (45). Detach pivot block
bolt (6) into shelter.
(36).
(3) Replace bolt (8) and flat head screws (9) and
(11) Remove cap lug (37) from inside of inner tube
tighten all bolts and screws securely.
(45).
(12) Remove two pins (38), setscrew (39), spring
4-37.1. Jack Assemblies (Fixed End and Folding
(40), and locking insert (41). Detach lifting nut (42) from
Floor
inner tube (45).
(13) Remove lifting screw (44) and stop pin (43) from
NOTE
inner tube (45).
This paragraph provides maintenance
instructions for jacks installed on shelter
NOTE
serial No. 402 and subsequent.
The following steps pertain to folding
end jack assembly only.
a. Removal. Remove fixed end jack assembly as
follows:
(14) Remove four screws (46) and detach mounting
(1) Remove six cap screws (1, fig. 4-22.1),
plate (47) and spacer blocks (51 and 52).
lockwashers (2) and washers (3) from the upper and
(15) Remove setscrew (49), nut (50), dtente pin
lower mounting brackets.
(48), and spacer block (53) from outer tube boss.
(2) Remove fixed end jack from shelter. Remove
c. Inspection. Inspect all parts for wear and damage.
folding floor jack assembly as follows:
d. Repair.
(1) Remove cap screw (4), washer (5) and jam nut
(1) Replace all worn and damaged parts.
(6) from the upper bracket.
(2) Replace an irreparable jack assembly.
(2) Remove four screw (7) from the mounting plate
e. Assembly.
(47) and remove folding floor jack from shelter.
b. Disassembly.
NOTE
(1) Remove ferrules (8) as required and disconnect
During reassembly, pack lifting screw
wire rope (9) from ratchet wrench (10). Remove ratchet
with approximately 1 oz of MIL-G-23827
wrench from its mounting bracket.
Grease.
(2) On fixed end jack assembly: Remove cotter pin
(26) and pin (27) and detach base plate (32).
Change 2 4-82.1
