TM 9-2320-260-34-2
17-7. ENGINE COOLANT HEATER FUEL CONTROL VALVE REPLACEMENT
THIS TASK COVERS:
a. Removal
b. Installation
MATERIALS/PARTS (Contd)
APPLICABLE MODELS
Screw-assembled lockwasher
All
TEST EQUIPMENT
Screw-assembled lockwasher
Multimeter (Appendix B, Item 115)
TOOLS
REFERENCES (TM)
General mechanic's tool kit
TM 9-2320-260-20
(Appendix B, Item 1)
TM 9-2320-260-34P-2
Tool kit, electrical (Appendix B, Item 106)
EQUIPMENT CONDITION
MATERIALS/PARTS
Engine coolant heater removed (TM 9-2320-260-20).
Four screw-assembled lockwashers
Two screw-assembled lockwashers
NOTE
Tag wires for installation.
a Removal
1. Remove four screw-assembled lockwashers (7) and guard (6) from heater housing (8). Discard
screw-assembled lockwashers (7).
2. Remove nut-assembled lockwasher (2), ground lead (3), air tube (4), and elbows (1) and (5) from
heater housing (8).
3. Disconnect fuel control valve leads (9) and (10) from tab connector (18).
4. Loosen nut (16) and slide down fuel tube (13).
5. Remove screw-assembled lockwasher (22) and lead (21) from heater component bracket (19). Discard
screw-assembled lockwasher (22).
6. Remove screw-assembled lockwasher (11) and lead (20) from flame detector switch (17). Discard
screw-assembled lockwasher (11).
7. Remove two screw-assembled lockwashers (15) and fuel control valve (12) from fuel tube (13) and
bracket (14). Discard screw-assembled lockwashers (15).
b .Installation
1. Position fuel control valve (12) on fuel tube (13) and bracket (14).
2. Tighten nut (16) and install fuel control valve (12) on bracket (14) with two new screw-assembled
lockwashers (15).
3. Install lead (21) on heater component bracket (19) with new screw-assembled lockwasher (22).
4. Install lead (20) on flame detector switch (17) with new screw-assembled lockwasher (11).
5. Connect fuel control leads (9) and (10) on tab connector (18).
6. Install air tube (4), elbows (1) and (5), and ground lead (3) on heater housing(8) with nut-assembled
lockwashers (2).
7. Install guard (6) on heater housing(8) with four new screw-assembled lockwashers (7).
17-16
