6-11. GEARED HUB REPLACEMENT (Cont'd)
11.
Place geared hub (3) in vise.
12.
Remove cotter pin (8), slotted nut (9), and upper ball joint (10) from geared hub (3). Discard cotter
pin (8).
13.
Remove cotter pin (1), slotted nut (2), and lower ball joint (4) from geared hub (3). Discard cotter
pin (1).
b. Installation
NOTE
Upper ball joint has grease fitting.
1.
Install upper ball joint (10) to geared hub (3) with slotted nut (9), but do not tighten.
2.
Install lower ball joint (4) to geared hub (3) with slotted nut (2), but do not tighten.
NOTE
• If geared hub received is P/N 5598766 and left front or right rear
installation is required, replace steering arm cover P/N 5591279
with P/N 5591280 for basic and A1 vehicles and P/N 6005121 for
M1123 and A2 vehicles.
• If geared hub received is P/N 5598767 and right front or left rear
installation is required, replace steering arm cover P/N 5591280
with P/N 5591279 for basic and A1 vehicles and P/N 6005120 for
M1123 and A2 vehicles.
• Use existing steering arm cover if serviceable.
• Perform steps 3 through 5 for replacement of steering arm cover.
Proceed to step 6 for geared hub installation.
3.
Remove four capscrews (7), washers (6), and steering arm cover (5) from geared hub (3).
NOTE
Immediately install steering arm cover after application of sealant.
4.
Clean sealing surfaces on geared hub (3) and steering arm cover (5). Apply anaerobic sealant to
steering arm cover (5).
5.
Apply sealing compound to threads on capscrews (7) and install steering arm cover (5) to geared
hub (3) with four washers (6) and capscrews (7). Tighten capscrews (7) to 65 lb-ft (88 N•m).
WARNING
Geared hub must be supported during removal and installation. Failure
to support geared hub may cause injury to personnel or damage to
equipment.
6.
Install geared hub (3) and upper ball joint (10) on upper control arm (13) ensuring upper ball
joint (10) is placed above upper control arm (13), and boot (16) and ball joint retainer (14) are placed
below upper control arm (13).
NOTE
Ensure outer capscrews on front ball joints are installed from top down,
and inner capscrews are installed from bottom up for M1123 and
“A2” series vehicles only.
7.
Install upper ball joint (10) and ball joint retainer (14) to upper control arm (13) with four washers (12),
capscrews (11), washers (12), and locknuts (15). Tighten locknuts (15) to 252 lb-in. (28 N•m).
CAUTION
Do not loosen slotted nut to install cotter pin. Doing this may result in
damage to equipment.
8.
Tighten slotted nut (9) on upper ball joint (10) to 65 lb-ft (88 N•m). Install cotter pin (8).
9.
Apply sealing compound to halfshaft retaining capscrew (18) and install halfshaft (24) to geared
hub (3) with lockwasher (17) and halfshaft retaining capscrew (18). Tighten halfshaft retaining
capscrew (18) to 37 lb-ft (50 N•m).
TM 9-2320-280-20-2
6-28
Change 2
