TM-9-2320-280-20-3

TRUCK, UTILITY: M998 SERIES

TECHNICAL MANUAL; UNIT MAINTENANCE; VOLUME 3 OF 3

JANUARY 1996
TM-9-2320-280-20-3

  TM-9-2320-280-20-3 - Page 556 of 1168

11-198. BLOWER MOTOR AND HOUSING MAINTENANCE
This task covers:
a. Opening Blower Housing
d.
Blower Housing Installation
b. Closing Blower Housing
e.
Blower Motor Removal
c. Blower Housing Removal
f.
Blower Motor Installation
INITIAL SETUP:
Applicable Models
M997, M997A1, M997A2
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Materials/Parts
Six lockwashers (Appendix G, Item 159)
Plain-assembled nut (Appendix G, Item 201)
Plain-assembled nut (Appendix G, Item 204)
Manual References
TM 9-2320-280-24P
Equipment Condition
• Rear cover panel removed (para. 11-188).
• Battery ground cable disconnected (para. 4-73).
1.
Remove plain-assembled nut (3) and capscrew (11) from blower housing (2) and body (13). Discard
plain-assembled nut (3).
2.
Release two latches (14) from blower housing (2) and evaporator duct (1) and swing blower
housing (2) open.
1.
Swing blower housing (2) closed and secure to evaporator duct (1) with two latches (14).
2.
Install blower housing (2) on body (13) with capscrew (11) and plain-assembled nut (3).
1.
Perform step a.
NOTE
Prior to removal, tag leads for installation.
2.
Disconnect four control box leads (6) from blower motor leads (5).
3.
Remove plain-assembled nut (12.1), capscrew (10), and clamp (7) from blower housing (2). Discard
plain-assembled nut (12.1).
4.
Remove two capscrews (19) and lockwashers (18) from plate (20) and evaporator duct (1). Discard
lockwashers (18).
5.
Remove two screws (21), lockwashers (15), and plate (20) from blower housing (2) and evaporator
duct (1). Discard lockwashers (15).
6.
Remove four capscrews (16), washers (17), and blower housing (2) from evaporator duct (1).
1.
Install blower housing (2) on evaporator duct (1) with four lockwashers (17) and capscrews (16).
2.
Install plate (20) on blower housing (2) and evaporator duct (1) with two lockwashers (15) and
screws (21).
3.
Install plate (20) on evaporator duct (1) with two lockwashers (18) and capscrews (19).
4.
Install clamp (7) and control box harness (12) on blower housing (2) with capscrew (10) and plain-
assembled nut (12.1).
d. Blower Housing Installation
c. Blower Housing Removal
b. Closing Blower Housing
a. Opening Blower Housing
TM 9-2320-280-20-3
11-292
Change 2


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