TM 9-4910-726-14&P
IF YOUR TESTER SHOWS STRANGE READINGS
MAKE THE FOLLOWING CORRECTIONS AND REPAIRS
21.
FLOW GAUGE NEEDLE
AIR LAK IN PUMP SUCTION
CHECK ALL PUMP AND PUMP
MOVES
WILDLY
AND
LINE.
LINE CONNECTIONS AND
ERRATICALLY.
SEALS.
NOT ENOUGH OIL IN
RESERVOIR TANK.
CHECK AND FILL RESERVOIR
TANK.
22.
FLOW GAUGE NEEDLE
SUCTION PROBLEM
SHOWS
BELOW
RESTRICTION IN THE SUCTION
CLEAN LINES AND STRAINER
CORRECT PUMP PLOW
LINES, CLOGGED SUCTION
OR ADD OIL.
AT BOTH NO LOAD AND
STRAINER, LOW OIL LEVEL.
LOAD
OR
HIGH
PRESSURE READING.
INLET AND OUTLET
CONNECTIONS REVERSED.
CONNECT INLET AND OUTLET
23.
PRESSURE DOES NOT
PORTS CORRECTLY.
REGISTER WHEN LOAD VALVE
1S DEPRESSED, AND FLOW
EXCESSIVE SACK PRESSURE.
GAUGE IS BELOW ZERO.
LIMIT RETURN LE TO 100 PSI.
24. FLOW GAUGE FREEZES IN
INCORRECT ORIFICE
CHOOSE PROPT PLOW GAUGE
ANY POSITION.
SCALE.
INLET AND OUTLET
BLOWOUT PLUG MUST BE
CORRECTIONS REVERSED.
REPLACED.
25. OIL IS AUDIBLY RELEASED
PROTECTIVE BLOWOUT PLUG
INTO THE TESTER CASE.
HAS RUPIURED.
BACKPRESSURE ROSE TO
3000- 3500 PSI
26. REPLACING BLOWOUT PLUG
F. REMOVE LARGE SCREWS FROM HANDLE SIDE
WHEN BLOWOUT PLUG HAS RUPTURED-
END OF TESTER CASE
A. SHUT DOWN SYSTEM
G. LIFT TESTER FROM CASE AND CLEAN TESTER
B. REMOVE CONNECTION
H. LOCATE BRASS BLOWOUT PLUG MOUNTER IN
C.
REMOVE TESTER INLET AND OUTLET
BLOCK UNDER THE PLEXIGLASS.
FITTINGS
I. REPLACE BLOWOUT WITH EXTRA FROM THE
D. DRAIN OIL FROM CASE
COVER
ON THE BENCH
J. RETURN TESTER TO CASE
E. REMOVE PLEXIGLASS COVER FROM
K. INSERT MOUNTING SCREWS
TESTER
L. REPLACE PLEXIGLASS COVER
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