TM 1-4920-446-13 & P
3-80. Pressure Gauges - Replace (AVIM)
This task covers: Removal and installation
Tool Kit, Instruments, NSN 5180-00-323-4913
Shop Set, AVIM, Electrical-Instrument, NSN 4920-00-165-1453
Para. 3-18 Cabinet assembly removed
General Safety Instructions:
Be sure that all electrical power is removed from the unit before beginning any mainte-
To avoid personal injury test stand must be shut down and all hydraulic pressure relieved
before beginning any maintenance operation.
Tag all disconnected tubing and lines to ease reinstallation.
Removal - Low Pressure and High Pressure Gauges:
Loosen the knurled bolts and remove covers from both gauges.
Disconnect the flexible hoses in back of the panel.
Remove three screws from each gauge. Pull gauges out through the front of the panel.
To calibrate gauges refer to para 3-89.
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