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TM 5-4210-220-12
4-24 ELECTRICAL SYSTEM - Continued
REPLACEMENT
a.
Dash Panel Gages Replacement
NOTE
This instruction is used to replace the following meters, fuel level, transmission oil temperature, voltmeter,
ammeter, engine water temperature, engine oil pressure, engine hourmeter, air filter monitor, tachometer, and
speedometer.
(1)
Remove steering wheel as detailed in para. 4-25.1. Remove 12 machine screws retaining dash panel to
instrument panel frame.
(2)
Lift dash panel.
(3)
Tag and remove wires from the failed gage (For air filter gage, remove air line). Loosen turn signal switch
on steering column if required.
(4)
Remove nuts (1) and clamp (2) and lift gage from panel.
(5)
Install new gage in panel. Ensure bezel fits snugly against plate.
(6)
Install new nuts (1) and clamp (2). Tighten nuts.
(7)
Connect wires to gage as tagged (For air filter gage, install air line).
(8)
Aline dash panel on instrument panel frame and install 12 machine screws.
(9)
Install steering wheel as detailed in para. 4-25.1.
(10)
Connect batteries and start main engine. Check function of new gage.
b.
Cab Air Panel Gages Replacement.
NOTE
This instruction is used to replace the primary, secondary, and emergency air gages
(1)
Drain all air tanks via draincocks before proceeding.
(2)
Remove 12 machine screws retaining air panel to instrument panel frame.
(3)
Lift up air panel.
(4)
Tag and disconnect air hose from failed gage.
(5)
Remove nuts (1) and clamp (2) and lift gage from panel.
4-427
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