TM 5-4310-389-14
a.
Service Line Pressure, Final Pressure, Compressor Oil Pressure.
CAUTION
Always remove negative terminal first to prevent shorting.
1.
Remove battery terminals and battery.
2.
Remove rear cover by removing five hex head bolts.
3.
Disconnect sensing line to related gauge (1, 2, 3 or 7, figure 3-47) as required.
4.
Loosen and remove gauge mounting bracket. Remove gauge.
5.
Install replacement gauge. Secure gauge mounting bracket. Connect sensing line to gauge.
b.
Engine Head Temperature Gauge.
1.
To remove engine head temperature gauge, the air cowling must be removed to remove sensor from the cylinder
head. See paragraph 3-33, c.
2.
Using two 13 mm open end wrenches, hold nut closest to cylinder head secure while loosening the jam nut.
Loosen nut closest to the cylinder head until sensor can be removed.
3.
Remove grommet from air shrouding. Pull sensor and wire through grommet hole.
4.
Repeat steps a.4 and a.5, above.
3-82
