TM-9-2320-280-34
TRUCK, UTILITY: M998 SERIES
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
JANUARY 1996
TM-9-2320-280-34 - Page 716 of 1258
TM 9-2320-280-34
14-22.
EVAPORATOR DUCT REPLACEMENT
This task covers:
a.
Removal
b.
Installation
INITIAL SETUP:
Applicable Models
Manual References
M997, M997A1, M997A2
TM 9-2320-280-20
TM 9-2320-280-24P
Tools
General mechanic's tool kit:
Equipment Condition
automotive (Appendix G, Item 1)
Air conditioning evaporator removed (para.
14-20).
Materials/Parts
Maintenance Level
Pushnut (Appendix E, Item 136)
Direct support
Four locknuts (Appendix E, Item 59)
Seven lockwashers (Appendix E, Item 87)
a.
Removal
1.
Remove screw (6), lockwasher (7), and control cable (8) from evaporator duct (4).
Discard
lockwasher (7).
2.
Remove pushnut (5) and control cable (8) from duct door pin (9).
Discard pushnut (5).
3.
Remove six capscrews (11), lockwashers (10), and duct (4) from body (3).
Discard lockwashers (10).
4.
Pull evaporator duct (4) and insulation away from heater duct (2) and slide control cable (8) through
grommet (1).
5.
Remove four screws (13), locknuts (14), latch catch (12), and latch (15) from evaporator duct (4).
Discard locknuts (14).
6.
Inspect insulation for damage.
Replace insulation CIM 9-2320-280-20) only if damaged.
b.
Installation
1.
Install latch (15) and latch catch (12) on evaporator duct (4) with four screws (13) and locknuts (14).
2.
Install control cable (8) through grommet (1) in evaporator duct (4).
3.
Install evaporator duct (4) on body (3) with six lockwashers (10) and capscrews (11).
4.
Connect control cable (8) on duct door pin (9) with pushnut (5).
5.
Install control cable (8) on evaporator duct (4) with lockwasher (7) and screw (6).
14-116
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