MWO-9-2320-279-20-9
MODIFICATION OF M977 SERIES 8X8 HEAVY EXPANDED MOBILITY TACTICAL TRUCK (HEMTT)
MODIFICATION WORK ORDER; INSTALLATION INSTRUCTIONS FOR BOLT TOGETHER WHEELS
DECEMBER 2001
MWO-9-2320-279-20-9 - Page 2 of 29
MWO 9-2320-279-20-9
2
1.
PURPOSE
.
Changing over the wheels on the HEMTT will reduce chances for accidents and
injury when handling the current split ring wheel.
2.
PRIORITY.
This Modification is classified as URGENT.
3.
END ITEM TO BE MODIFIED
.
Refer to table 1.
Table 1.
End Items to be Modified
Nomenclature
NSN
PN
CAGE
Model
Truck, Cargo, w/Winch
XM977WW
19207
M977
Truck, Cargo w/o, Winch
XM977WOW
19207
M977
Truck, Tank, Fuel, w/Winch
2320-
01
-097-
0249
XM978WW
19207
M978
Truck, Tank, Fuel, w/o Winch
XM978WOW
19207
M978
Truck, Tractor, w/Winch, w/o Crn
XM983WOC
19207
M983
Truck, Wrecker, w/Winch
XM984WW
19207
M984
Truck, Wrecker, w/Winch
XM984A1WW
19207
M984A1
Truck, Cargo, w/Winch
XM985WW
19207
M985
Truck, Cargo, w/o Winch
XM985WOW
19207
M985
Truck, Cargo w/Winch (GMT)
XM985E1WW
19207
M985E1
Truck, LHS
XM1120
19207
M1120
Truck, CBT, w/Winch
M1977
19207
M1977
Truck, CBT, w/o Winch
HEMTTCBT
19207
M1977
4.
MODULE (COMPONENTS, ASSEMBLIES, SUBASSEMBLIES, BOARDS AND CARDS) TO
BE MODIFIED
.
Not applicable.
5.
PARTS TO BE MODIFIED
.
SEE TABLE 2
Table 2.
Parts to be Modified
Nomenclature
NSN
PN
CAGE
Tire, Pneumatic
16.00R20/XZLTLRM
0A8K5
Tire, Pneumatic
16.00R20/J/TBTR
81348
Inner tube, Pneumatic
20V576
12195
Flap, Inner Tube, Pneumatic
15-20
12195
Ring, Lock, Automotive
41857-2
09386
Ring, Side Automotive
41856-12
09386
Wheel, Pneumatic Tire
1307030
45152
6.
APPLICATION
.
a.
Time compliance Schedule: The effective date is 1 November 2001 and completion
date is 30 June 2006.
b.
Lowest Level of Maintenance Authorized to Apply the MWO:
Unit
c.
Work Force Man-Hour Requirements for Application of this MWO to a single Unit, End
Item or System is as follows:
Requirements
WORK FORCE/SKILLS
MAN-HOURS
Heavy Wheeled Vehicle Mechanic (MOS 63S)(2)
Removal and replacement
5.5
Disassembly and demilitarization
9
7.
TECHNICAL PUBLICATIONS AFFECTED/CHANGED
.
Refer to Table 3.
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