TM 11-5985-334-34
h. Disassemble the hub and reel by forcing the
k. Replace the locknut onto the cable stud run-
hub out of the reel with an arbor press.
ning the nut up approximately one inch.
i. Replace a hub into a reel by setting the reel keys
l. Attach flange (5) to reel trapping ball end of
(8) into the hub grooves and press fit the hub into
cable in cutout and secure with screws (11).
the reel with the hub projecting equally on both
m. Place bearing (2) into hole in mounted rear
sides of the reel.
plate (1) and slip reel assembly into it.
j. Reassemble the reel, backplate, spacers, and
n. Place remaining bearing on opposite side of
front plate; replace and tighten the four screws to
reel and secure by replacing front plate (7) and
secure the reel assembly.
spacer (10) with screws (12).
k. Remount and secure the reel assembly (10)
o. Replace the winch and wind up the cable into
onto the launcher frame (2) by replacing and
the reel until the elevator cable is bearing the weight
tightening the screws removed in d, e, and f above.
of the elevator.
l. Replace the ball end of the elevator cable into
2-13. Removal and Replacement of Elevator
the reel.
Platform
2-15. Removal and Replacement of Reel
The elevator platform assembly consists of the
Components, AB-621A/G
elevator cup, bearings, spacers, azimuth ring, and
azimuth ring guard mounted on the horizontal
section of the elevator. Their locations and methods
a. Remove the ball end of the elevator cable ac-
of attachment in the assembly are shown in figure
b. Remove the rear plate (1) by removing two
screws (17) and two locknuts (18) from rear of
AB-621AIG.
launcher frame (15).
2-14. Removal and Replacement of Reel
c. The two reel supports (6) and (10) may be
Components AB-621/G
removed from launcher frame by removing two
screws (19).
a. The reel components can be replaced after
d. Flange (3) may also be removed by removing
removing the reel assembly.
seven screws (11 ) which secure it to hub (4).
b. Remove the ball end of the elevator cable ac-
2-16. Repair of Mast Carrier
c. Note the location of the spring pin (16) which
secures the ball end of the cable into the slot of the
The handle of the mast carrier (2) is mounted by two
reel.
machine bolts and self-locking nuts on the hinge
d. Remove the reel assembly by removing the two
side of the handle and removal procedures are
screws (14) and self-locking nuts (17) through the
readily apparent upon visual inspection. When
back of the launcher frame (2) and the rear plate of
replacing the handle, do not overtighten the bolt
the reel assembly (10).
and nut through the hinge bracket.
e. Remove the two screws (3) through the side of
the launcher into the reel bracket (7).
2-17. Disassembly and Repair of Upper Guy
f. Remove the two screws (12) which pass through
Ring, AB-621/G
the rear plate (15) tee reel support (4) and thread into
the front plate (1) of the reel assembly (10).
The upper guy ring is essentially an assembly of the
g. Open the reel assembly by removing the four
guy ring plate having a bearing assembly fastened
screws that secure the back plate to the front plate
to it by six screws. The bearing assembly contains
and separate the assembly for access to the reel and
roller bearings packed in grease; therefore, the work
hub.
surface used for disassembly must be clean.
2-16