Spicer Drive Axles Service Manual Axle Shift Systems, 2-Speed Single Rear Axles - Manual (Page 31)

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Air Shift System
Ser
vicing Other
Components
Servicing Other Air System Components
Speedometer Adapter
The speedometer adapter is lubricated and sealed for life of
the unit. No maintenance is required. Replace a faulty unit.
Solenoid Valve
Replace solenoid valve as an assembly. The valve should not
be serviced.
Quick Release Valve
If quick release valve fails to operate properly, it may be
repaired as follows: Disassemble valve. Inspect valve body,
valve seat and spring (if used) for evidence of faulty opera-
tion. Replace faulty parts, then reassemble valve.
Pressure Switch
Replace pressure switch as an assembly.