MWO-9-2300-200-20-1
MODIFICATION OF 6-TON TACTICAL EXPANSIBLE VAN SEMITRAILERS AND 2-1/2 AND 5-TON 6X6 TRUCK EXPANSIBLE VANS
ENCLOSURE OF ASBESTOS CLOTH INSULATION IN VAN BODY HEAT DUCTS
SEPTEMBER 1991
MWO-9-2300-200-20-1 - Page 4 of 10
MWO 9-2300-200-20-1
NOMENCLATURE
Polyurethane Foam “Great
Stuff" Insta Foam Products
or equivalent,
Siliprene Adhesive (8030-01-105-3755)
Register Plate Cover
Screw (NSN 5305-00-432-4172)
Heater Plate Cover
MWO in protective bag (MWO)
Bag, plastic, size 10-1/2 x 12
zip lock, (NSN 8105-00-837-7753)
Decal (Caution)
PART NO
S1212-01
M6325
12377847
MS51861-37
12377846
MWO 9-2300-200-20-1
Fed Spec A-A-1799
12377855
CAGE
54577
00333
19207
96906
19207
19207
58536
19207
1
CAUTION
Kit requires application prior to shelf life expiration. Manufac-
turing date and expiration caution are shown on containers.
Shelf life of materials is Polyurethane Foam - 9 months,
Siliprene Adhesive - 9 months.
QTY
4
1
4
20
2
1
1
Disposable gloves wil be worn to prevent skin contact with as-
bestos fibers.
c. Bulk and Expendable Material. Disposable gloves, obtained through Self-Service Supply Store.
d. Parts Disposition. Dispose of register covers, spray cans, adhesive and gloves as hazardous waste.
9. SPECIAL TOOLS; JIGS; TEST MEASUREMENT AND DIAGNOSTIC EQUIPMENT (TMDE); AND
FIXTURES REQUIRED.
General Mechanics Tool Box.
10. MODIFICATION PROCEDURES.
a. Permanently disconnect heaters: Position heater power switch in OFF position. Disconnect power
cable, fuel pump wiring and thermostat wiring connectors at front of heater. Disconnect fuel overflow line and
fuel inlet line at front of heater. Disconnect ground wire at heater front mounting bracket. Tape wires and lines
to heater body.
b. Remove equipment from front of heat registers located in the lower half of the front wall.
c. Remove four heat register covers. Retain fasteners for reuse with permanent cover plates. Dispose of
the register covers in accordance with local procedures as hazardous waste material. Clean wall area around
the heater duct openings. Ensure area is free from dirt, grease and oil.
Ozone Friendly Great Stuff Foam Spray Insulation may ag-
grevate respiratory conditions. Use in well ventilated area. See
Safety information, page 6.
d. Apply spray foam insulation into the bottom of the van body front wall cavity through the register open-
ing in the front wall. Do not disturb asbestos cloth insulation. Evenly spray entire contents of two cans into the
four register openings. Spray must foam up to completely seal the lower portion of the ducts, thus containing
asbestos fibers at the base of the front cavity/duct. Objective is to seal heat outlets to the folding floor that run
the length of the van body. Foam expands in 60 minutes.
4
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