TM 9-2320-273-20
SENDING UNITS, SWITCHING DEVICES, AND WINTERIZATION KIT.
5-90. WINTERIZATION KIT ENGINE COOLANT HEATER MAINTENANCE (Continued).
LOCATION/lTEM
ACTION
REMARKS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Two hose clamps (5).
Tee (2) and nipple (1).
Two hose clamps (5).
Bushing (19).
Two hose clamps (5).
Two nipples (41) and
valve (36).
Elbow (28), two nipples
(24) and (27), tee (26),
and draincock (25).
Wire assembly (22), cable
grip (15), washer (16) and
locknut (17).
Three harness clamps (13),
(14), and (39).
Wire assembly (22).
Two screws (29), nuts (34)
and Iockwashers (33).
Bracket (10).
Loosen and remove hose (6).
Unscrew and remove from water
manifold. Remove draincock (3)
and adapter (4).
Loosen and remove hose (6)
from pipe (7), adapter (4),
and clamp (14).
Unscrew and remove from rear
port of heater (23).
Loosen and remove hose (6)
from two adapters (30) and (35).
Unscrew and remove from
engine block with elbow (42)
and adapter (35).
Unscrew and remove from for-
ward port on bottom of heater
(23).
Remove from thermostat (18).
a.
b.
a.
b.
Remove two nuts (12), bolts
(32) and Iockwashers (11)
and remove harness clamps
(13) and (14).
Remove nut (37), bolt (40)
and Iockwasher (38) and re-
move harness clamp (39).
Pull thru to circuit breaker
if service is required.
Replace terminals (20) or
splice connectors (21) as
required.
Unscrew and remove heater
(23) and thermostat (18).
Separate from support (31)
by removing bolt (32), lock-
washer (9), and nut (8).
5-334
