b. Installation
TM 9-2320-280-20-3
12-42. ARCTIC HEATER CONTROL BOX ASSEMBLY REPLACEMENT (Cont’d)
7. Remove grommets (25) and (40) from tunnel (24) and battery box (39), and pull heater control box
cable (3) through tunnel (24) and battery box (39).
8. Remove two screws (37) and clamps (38) from heater control box cable (3) and retainer (41).
9. Disconnect electrical connector (36) from heater (35).
10. Remove screw (34), retaining rod (33), and heater control box cable (3) from tunnel (24).
11. Remove two screws (30), lockwasher (31), heater control box (28), and ground lead 416B (29) from
cowl (32). Discard lockwasher (31).
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Install heater control box (28) and ground lead 416B (29) on cowl (32) with lockwasher (31) and two
screws (30).
Connect electrical connector (36) to heater (35).
Install heater control box cable (3) on retainer (41) with two clamps (38) and screws (37).
Install heater control box cable (3) on tunnel (24) with retaining rod (33) and screw (34).
Push heater control box cable (3) through battery box (39) and tunnel (24), and install grommets (25)
and (40).
Install heater control box cable (3) on tunnel (24) with clamp (2), capscrew (1), and nut and
lockwasher assembly (23).
Connect leads 416 (15) and 416A (14) to shunt (16) with lockwasher (13) and nut (12).
Connect leads 6B (20), 6C (21), and 400 (22) to power stud (8) with washer (17), lockwasher (18), and
nut (19).
NOTE
Perform step 9 for vehicles not equipped with troop/cargo
winterization kit. Perform step 10 for vehicles equipped with
troop/cargo winterization kit.
Connect lead 402 (4) to fuel pump lead 402A (5).
Connect lead 402 (27) to fuel pump jumper lead (26).
Connect ground lead 416A (9) to fuel pump bracket (10) with washer (7), capscrew (11), washer (7),
and nut (6).
12-62
