TM-9-2350-256-34
RECOVERY VEHICLE, FULL TRACKED: MEDIUM, M88A1
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
JULY 2005
TM-9-2350-256-34 - Page 427 of 584
TM 9-2350-256-34
0076 00
Adjustment
NOTE
Refer to the TESTING procedure above.
1.
If the pressure switch assembly has not opened when a pressure of 235 ± 3 psi (1620 ± 21 kPa) is reached:
a.
Loosen pressure switch assembly setscrew and apply 235 psi (1620 kPa) hydraulic pressure.
b.
While maintaining pressure at 235 psi (1620 kPa), slowly turn pressure switch assembly adjustment screw counter-
clockwise until the ohmmeter reads infinity. If pressure switch assembly cannot be adjusted in this manner, replace
pressure switch assembly and perform the above TESTING procedure and this ADJUSTMENT procedure on the new
pressure switch assembly.
c.
Test action of the pressure switch assembly by performing steps 3 and 4 of the above TESTING procedure.
d.
Tighten pressure switch assembly setscrew, relieve pressure, disconnect test equipment, and install pressure switch
assembly in accordance with TM 9-2350-256-20.
2.
If the pressure switch assembly opens before a pressure of 235 ± 3 psi (1620 ± 21 kPa) is reached:
a.
Loosen pressure switch assembly setscrew and apply 235 psi (1620 kPa) hydraulic pressure.
b.
While maintaining pressure at 235 psi (1620 kPa), slowly turn pressure switch assembly adjustment screw clockwise
until the ohmmeter reads “0.” If the ohmmeter does not read “0” when the adjustment screw is turned fully clockwise,
replace pressure switch assembly and perform the above TESTING procedure and this ADJUSTMENT procedure on
the new pressure switch assembly.
c.
Very slowly back off the adjustment screw (turn counterclockwise) until the ohmmeter reads infinity.
d.
Test the action of the pressure switch assembly by performing steps 3 and 4 of the above TESTING procedure.
e.
Tighten pressure switch assembly setscrew, relieve pressure, disconnect test equipment, and install pressure switch
assembly in accordance with TM 9-2350-256-20.
END OF WORK PACKAGE
0076 00-3/4 blank
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