PURPOSE OF MODIFICATION.
The purpose of these instructions is to provide a procedure for conversion of
both front and spare tires to 12:00 X 20, 16 PLY. Also to install a modified
hub that will accept rims used with 16 ply tires.
This modification is classified as LIMITED URGENT.
E q u i p m e n t in Use.
(Includes equipment in supply or maintenance activities
below depot level and equipment in administrative storage.) Equipment in use
w i l l be modified as soon as possible but no later than the scheduled comple-
E q u i p m e n t in use may continue to be operated for a
t i o n date of this MWO.
s p e c i f i c l i m i t e d p e r i o d o f t i m e , not to exceed 120 days, provided that normal
o p e r a t i n g precautions and the maximum highway speed is restricted to 30 mph
E q u i p m e n t not modified within the 120 day compliance period will not be
o p e r a t e d until this MWO is applied. A f t e r expiration of MWO completion date,
such equipment will be reported as NORM/NOT READY in accordance with AR 220-1
and TM 38-750.
E q u i p m e n t in Wholesale Depot Supply or
Maintenance Activities. Serviceable
equipment in Depot Supply or Maintenance
will be modified prior to issue but
not later than the completion date of this
MWO. The modification w i l l b e
applied to unserviceable equipment at the
t i m e o f s c h e d u l e d d e p o t o v e r h a u l or
LIMITED URGENT MWO will be applied prior to e x p i r a t i o n
Issue of unmodified stock is prohibited.
of MWO completion date.
END ITEM OR SYSTEM TO BE MODIFIED.
End Item or System to be Modified
S e r i a l No.
Truck Tractor Wrecker,
5 Ton, Model M819
MODULES (Components, Assemblies, Subassemblies, Boards, and Cards) TO BE
A modified hub P/N 12300683 will be supplied with the Model M819
Truck Tractor Wrecker 5 Ton front wheel hub modification kit