MWO-9-2320-280-35-2
MODIFICATION WORK ORDER
MODIFICATION OF THE HIGH-MOBILITY MULTIPURPOSE WHEELED VEHICLE; M998 SERIES; 3-POINT SEATBELT RESTRAINT SYSTEM FOR BASIC ARMORED AND NON-ARMORED VEHICLES
OCTOBER 2005
CHANGE 2
MWO-9-2320-280-35-2 - Page 22 of 116
MWO 9-2320-280-35-2
Change 2
17
10.2.
REAR SEAT, NON-ARMORED VEHICLE.
WARNING
All seatbelt anchor point hardware must be replaced with the new
hardware provided in the kit to ensure adequate strength. Failure to do this
may result in injury to personnel.
a. VEHICLE PREPARATION.
(1) Disconnect battery ground cable. (Refer to TM 9-2320-280-20.)
(2) Remove rear seat backs, if installed. (Refer to TM 9-2320-280-20.)
(3) Remove rear seatbelt assemblies. (Refer to TM 9-2320-280-20.)
(4) Remove rear fixed doors, if installed. (Refer to TM 9-2320-280-20.)
b. LEFT WHEELHOUSE REINFORCEMENT INSTALLATION.
(1) Remove two screws, four washers, and two nuts from left wheelhousing as shown in figure 35.
(2) Enlarge two holes on left wheelhousing to 0.500-inch diameter as shown in figure 35.
(3) Position 12342736 template to underside of left wheelhousing and secure with two 441426 screws
and 214442 nuts as shown in figure 36.
(4) Position 12342375 wheelhouse reinforcement to template on underside of left wheelhousing.
Using wheelhouse reinforcement as a template, locate, mark, and drill five 0.191-inch diameter holes as
shown in figure 36.
(5) Remove two screws, nuts, and template from left wheelhousing as shown in figure 36. Retain
screws and nuts for later use.
(6) Use a 0.328-inch diameter drill to countersink hole marked “A” on left wheelhousing as shown in
figure 37.
(7) Position wheelhouse reinforcement to underside of left wheelhousing and secure with four
NAS9031BNS-6-03 rivets and NAS9303B-6-3 rivet as show in figures 36 and 37.
c. LEFT WHEELHOUSE RETRACTOR MOUNT INSTALLATION.
(1) Position 12342727 template to left wheelhousing and secure with existing two screws (441426)
and nuts (214442) retained from para. b., step (5) as shown in figure 38.
(2) Using 12342727 template, locate and drill three 0.125-inch diameter holes in left wheelhousing
as shown in figure 38.
(3) Remove two screws, nuts, and template from left wheelhousing as shown in figure 38. Retain
screws and nuts for later use.
(4) Enlarge holes drilled in step (2) to 0.500-inch diameter as shown in figure 38.
(5) Install existing screw and two washers, removed in para. b., step (1), and 9422300 nut in hole on
left wheelhousing as shown in figure 39.
(6) Install 12342374 rear retractor mounting bracket to left wheelhousing and secure with two
454974 screws, 453719 screws, eight 2436164 washers, and four 9422300 nuts as shown in figure 39.
Tighten nuts to 35-40 lb-ft (48-54 N
•
m).
(7) Position 549220 turnbutton to rear retractor mounting bracket on left wheelhousing and secure
with two M24243/1-A405 rivets as shown in figure 39.
Back to Top
