ARMY TM 9-6115-604-12
NAVY NAVFAC P-8-633-12
1.
ADAPTER
24
ADAPTER
2.
SHUT OFF VALVE
25.
HOSE ASSEMBLY
3.
ELBOW
26
STRAIGHT ADAPTER
4.
ADAPTER
27
HOSE
5.
COOLANT BAND MARKER
28.
CAPSCREW
6.
HOSE ASSEMBLY
29.
HEXAGONAL NUT
7
STRAIGHT ADAPTER
30
LOCKWASHER
8.
HOSE ASSEMBLY
31
FLAT WASHER
9.
NIPPLE
32
BRACKET
10.
NIPPLE
33
HEATER ASSEMBLY H101, H102
11.
SHUT OFF VALVE
34.
HEATING ELEMENT
12.
ELBOW
35.
HOSE CLAMP
13.
ELBOW
36
NIPPLE
14
CAPSCREW
37
HOSE
15.
HEXAGONAL NUT
38.
HEXAGONAL NUT
16.
LOCKWASHER
39.
BELL CAP
17.
CLAMP
40
THERMOSTAT SENSING UNIT
18.
BRACKET
41
THERMOSTAT BURR
19.
HOSE ASSEMBLY
42
HEXAGON HEAD CAPSCREW
20
STRAIGHT ADAPTER
43.
LOCKWASHER
21.
HOSE
44
HEAD AND VALVE ASSEMBLY
22.
NIPPLE
45.
DRAIN PLUG
23
TEE
46.
HEATING TANK
Figure 4-46. Engine Preheat Assembly (Sheet 3 of 3)
d. Install.
(1) Apply sealing compound MIL-S-45180, Type II, to all male pipe threads prior to installation.
(2) Thread heating elements (34) into heating tanks (46) and tighten.
(3) Install thermostat sensing assemblies consisting of thermostat burr (41), thermostat sensing unit (40), fill cap
(39), and nut (38) on nipples (36) at ends of heater assemblies (33).
(4) Install replacement hose assemblies (6, 19, and 25) on engine block plumbing hardware by tightening hose
adapters (7, 20, and 26).
(5) Slide heater assemblies H101 and H102 (33) under mounting brackets (32) and attach using capscrews (28),
nuts (29), and lockwashers (30).
(6) Reconnect center hose assembly (25) and associated plumbing hardware to thermostat burrs (41) at end of
each heater assembly (33) using adapter (24) and nipple (22).
(7) Reconnect hose assemblies (19) to elbows (13) on each heater assembly and tighten hose adapters (20).
(8) Reconnect wiring to thermostat sensing units (40) and heating element (34) on each heater assembly (33).
Remove tags and discard.
(9) Open all shutoff valves (2 and 11).
(10) Check coolant level and fill as required.
4-130
