ARMY TM 9-6115-464-12
AIR FORCE TO 35C2-3-445-1
NAVY NAVFAC P-8-624-12
b. Coolant Temperature Gauge.
(1) Removal.
(a) Tag and disconnect electrical leads to coolant temperature gauge.
(b) Remove nuts (5, Figure 4-38, sheet 1 of 3), lockwashers (6) and damp (7).
(c) Remove coolant temperature gauge (8) from panel.
(2) Cleaning and Inspection.
(a) Clean coolant temperature gauge with filtered compressed air or wipe with a clean, lint-free
cloth lightly moistened with an approved solvent.
(b) Visually inspect coolant temperature gauge for corrosion, cracked casing, cracked or broken
glass, stripped or otherwise damaged threads, and evidence of other damage.
(3) Testing.
(a)
(b)
(c)
(d)
(e)
Connect an ohmmeter across the wiper arm terminal and any other terminal of 10-500 ohm po-
tentiometer.
Adjust potentiometer until ohmmeter indicates 460 ohms resistance.
Disconnect ohmmeter but do not disturb potentiometer adjustment.
Connect potentiometer to coolant temperature gauge terminal marked SEND.
Connect potentiometer and coolant temperature gauge in series with a 24 Vdc source with positive
lead to temperature gauge terminal marked IGN.
(f) Coolant temperature gauge should indicate 240°F. If it does not, replace it.
(4) Installation.
(a) Install coolant temperature gauge (8, Figure 4-38, sheet 1 of 3) to panel.
(b) Install clamp (7), lockwashers (6), and nuts (5).
(c) Reconnect electrical leads to coolant temperature gauge.
c. Fuel Level Gauge.
(1) Removal.
(a) Tag and disconnect electrical leads to fuel level gauge.
(b) Remove nuts (9, Figure 4-38, sheet 1 of 3), lockwashers (10) and clamp (11).
(c) Remove fuel level gauge (12) from panel.
(2) Cleaning and Inspection.
(a) Clean fuel level gauge with filtered compressed air or wipe with a clean, lint-free cloth Iightly
moistened with an approved solvent.
(b) Visually inspect fuel level gauge for corrosion, cracked casing, cracked or broken glass,
stripped or otherwise damaged threads, and evidence of other damage.
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