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  TM 55-4920-431-13
Analog Converter Replacement.
a.
Gain access to inside of case per paragraph 4-7.
b.
Disconnect electrical connector (P4) from control assembly (19, figure 5-1).
c.
Remove top four screws (20), washers (21), and control assembly (19).
d.
Install replacement control assembly (19) and secure with four screws (20)
and washers (21).
e.
Connect electrical connector (P4) to control assembly (19).
f.
Verify meter operation in accordance with paragraph 4-30.
Reinstall panel and case lid.
g.
Relay Replacement.
a.
Gain access to inside case per paragraph 4-7.
b.
Lift relay hold down spring (5, figure 5-3) from socket (4).
c.
Pull relay (1) out of socket (4).
d.
Install replacement relay (1) into socket (4). Reinstall relay hold down
spring (5) over relay.
e.
Reinstall panel and case lid.
Fuse Replacement.
a.
Gain access to inside case per paragraph 4-7.
b.
Lift fuse (7, figure 5-3) from fuse block (11).
c.
Install replacement fuse.
d.
Reinstall panel and case lid.
Meter Replacement.
a.
Gain access to inside case per paragraph 4-7.
b.
Refer to wiring diagram, figure FO-2 and identify wire leads to be disconnec-
ted from meter. Wires 45, 46, and 47 connect to TEMP meter (M2). Wires
48, 49, and 50 connect to SPEED meter (M1).
c.
Loosen and remove nuts from meter posts.
Remove wire leads from posts.
d.
Remove three retaining screws and nuts mounting the SPEED meter (M1) (1,
4-16
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