Quantcast Blower, Burner and Combustion Chamber Reassmbly

 

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Figure 71.35. Space heater assembly.
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TM-5-4210-205-12 Truck Fire Fighting; Powered Pumper; Foam and Water 500 G.M.P.; Centrifugal Pump Power Take Off Driven; 400 Gal. Water Tank 40 Gal. Manual
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Casing Reassembly. - TM-5-4210-205-120045
1
Casing
22
Grommet
43
Washer
62 Washer
2
Switch
23
Grommet
44
Screw
63 Blower assembly
3
Retainer
24
Screw
45
Setscrew
64 Plate
4
Cap
25
Screw
46
Screw
65 Washer
5
Screw
26
Chamber
47
Motor
66 Screw
6
Spark plug
27
Union
48
Cover
67 Nut
7
Washer
28
Washer
49
Blower assembly
68 Washer
8
Seal
29
Seal
50
Screw
69 Insulator
9
Grommet
30
Gasket
51
Clamp assembly
70 Bracket
10
Lead
31
Washer
52
Fan
71 Insulator
11
Screw
32
Screw
53
Cap
72 Screw
12
Switch
33
Nut
54
Screw
73 Spacer
13
Tube
34
Washer
55
Bushing
74 Cam
14
Nut
35
Insulator
56
Setscrew
75 Motor
15
Screw
36
Insulator
57
Collar
76 Nut
16
Cover
37
Screw
58
Capacitor and
77 Bumper
17
Sleeve
38
Screw
bracket
78 Shell
18
Plug
39
Fan
59 Screw
79 Screw
19
Nozzle
40
Burner
60 Bracket
80 Base
20
Lead
41
Washer
61 Screw
81 Seal
21
Head assembly
42
Contact set
Figure 71.35-Continued
(75). Make sure that the teeth of the cam
(2) Attach the preheater lead of burner to the
collar (57) engage the rubbing block of the
post insulator (36) with the brass screw (37)
movable contact. Position the combustion
inserted  from  inside  the  combustion
air shell assembly (78) on the opposite end
chamber  assembly  (26).
Attach  the
of the motor and attach by turning the two
insulator washer (35), flat washer (34), and
screws inserted through the motor into the
nut (33) to the screw and tighten.
tapped holes of the shell.
(3) Install the gasket (30), union seal (29),
(6) Install the contact plate cap (53) over the
union seal washer (28), and union (27) on
contact plate assembly and fasten with
the burner fuel feed connector.
three screws (54).
(4) Apply several drops of light oil on the cam
(7) Place the fan assembly (39) on the motor
collar (57). Position the cam collar and the
shaft and adjust the mounting position to
cam bushing (55) on the contact cam (74).
allow approximately 1-16 inch clearance
Align the holes of the contact cam and the
between the shell and the fan. Tighten the
cam bushing and install the setscrew (56)
special screw (38) with a screwdriver
just far enough to hold the parts together.
inserted through the shell intake opening to
Position the cam assembly on the motor
secure the fan to the motor shaft.  Make
shaft so that the setscrew is aligned with the
sure the special screw is aligned with the
flat on the motor shaft.
Tighten the
flat of the motor shaft.
setscrew. Make sure that some clearance
(8) Position  the  combustion  air  blower
exists between the motor and the cam.
assembly (63) on the four combustion
chamber studs. Apply a coat of "Permatex
(5) Insert the screws (61) and lockwashers (62)
Form-A-Gasket, Aviation Grade No. 3" for
through the contact plate (64) and place the
sealing; fasten with nuts (76). Rotate motor
spacers (73) on the threaded end of the
shaft slowly to check for free rotation.
screws. Insert the screws straight through
the motor
AGO 5667A
39

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