Elbow, x 1/8 M x 90
1 Ammeter
20
2 Nut, starting switch
21
Tube assembly
3 Instrument panel
22
Tube, special
4 Lockwasher, special (2 req)
23
Water temperature gage
5 Elbow, 1/8 x 1/8F x 90
24
Clamp (3 req)
6 Dampening orifice
25
Nut, hex jam
7 Flexible fitting
26
Lockwasher
8 Tube assembly
27
Nut, hex, 3/8-16 (2 req)
9 Lockwasher, special
28
Bracket
10 Clamp, 3/16
29
Cap screw, 3/8-16 x 1 (2 req)
11 Nut, hex, special (3 req)
30
Lockwasher, (2 req)
12 Starting switch
31
Bolt, hex hd, -13 x 1 (2 req)
13 Ignition switch
32
Connector
14 Connector
33
Pilot light assembly
15 Coupling, 1/8 (2 req)
34
Oil pressure gage
16 Bond strap
35
Choke control
17 Bolt, hex hd, special (3 req)
36
Air pressure gage
18 Clamp, 1/4
37
Hourmeter
19 Clamp, 5/16 x (2 req)
Figure 39-Continued.
prevent the switch from being left on accidentally, thereby causing an unnecessary drain on the batteries.
g. Oil Pressure Gage. The engine oil pressure gage registers the amount of oil pressure in the lubricating system. A
small segment of the indicating band is painted red, and the remainder of the band is green. For normal operation, the
indicating pointer should be in the green area at all times. If the pointer indicates no pressure, stop the unit at once until
the cause can be determined and corrected.
h. Choke Control. The choke control is connected with a flexible cable to the choke plate in the carburetor air intake.
As the choke control knob is pulled outward, the choke plate closes, providing a richer fuel-air mixture to start the engine.
i. Temperature Gage. The temperature gage indicates the temperature of the coolant in the liquid cooling system.
Normal operating temperatures are between 180 and 215 F.
101. Instrument Panel Removal and Installation (fig. 39)
a. Removal.
(1) Remove the two hex nuts (11), four lockwashers (9) and two hex head bolts (17) that fasten the bond strap
(16) to the top of the engine-compressor housing and to the instrument panel. This will also free the clamp
(18). Remove one hex head bolt (17), two lockwashers (9) and one hex nut (11) to free the clamp (10).
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