TM 9-2320-280-20-3
10-84. HEATER OUTLET/lNLET PIPING MAINTENANCE
This task covers:
a. Removal
c. Installation
b. Inspection
INITIAL SETUP:
Tools
Equipment Condition
General mechanic’s tool kit:
Cooling system drained as required (para. 3-60).
automotive (Appendix B, Item 1)
Manual References
TM 9-2320-280-10
TM 9-2320-280-24P
NOTE
Procedures for installing and removing inlet and outlet piping are
basically the same. This procedure covers the outlet piping.
1. Loosen clamp (9) from heater outlet hose (10) and water pump nipple (8) and disconnect outlet
hose (10).
2. Remove nut (12), washer (7), capscrew (6), and washer (7) from inlet hose clamp (5) and outlet hose
clamp (13).
3. Loosen clamp (2) and remove heater outlet hoses (3) and (10), and heater outlet tube (11) from
vehicle.
4. Loosen two clamps (4) and remove heater outlet tube (11) from heater outlet hoses (3) and (10).
5. Remove clamps (2), (4), (13), and (9) from hoses (3) and (10).
Inspect heater outlet port (1) and water pump nipple (8) for damage. Replace if damaged.
1. Install clamps (2), (4), (13), and (9) on hoses (3) and (10).
2. Connect two heater outlet hoses (3) and (10) to heater outlet tube (11) and tighten two Clamps (4).
3. Install heater outlet hoses (3) and (10) and heater outlet tube (11) between heater outlet port (1) and
water pump nipple (8).
4. Connect heater outlet hose (3) to heater outlet port (1) and tighten clamp (2).
5. Install outlet hose clamp (13) on inlet hose clamp (5) with washer (7), capscrew (6), washer (7), and
nut (12).
6. Connect heater outlet hose (10) to water pump nipple (8) and tighten clamp (9).
10-138
