J SERIES M ICROV A CJ SERIES M ICROV A Cļ£©ļ£© VA CUUM PUM P V A CUUM PUM P
PAGE 5 -2
M OTOR STOPS OR WILL NOTM OTOR STOPS OR WILL N OT
STARTSTART
PROBA BLE CA USE POSSIBLE REM EDY
A.
THERM AL OVERLOAD UNITS IN M OTOR
STARTER FAIL.
CHECK CAPACITY OF THERM AL
OVERLOAD UNITS BY COMPARING
AM PERE RATING ON M OTOR
NAMEPLATE WITH OVERLOAD TABLE
INSIDE STARTER BOX. IF NECESSARY
USE 1 SIZE LARGER THAN STANDARD.
B.
POSSIBLE INTERNAL SEIZURE. DISASSEM BLE AND CORRECT.
PU M P DOES N OT TU RN WHENPU M P DOES N OT TU RN WHEN
M OTOR STARTSM OTOR STARTS
PROBA BLE CA USE POSSIBLE REM EDY
A.
V-BELTS TOO LOOSE. TIGHTEN V-BELTS. SEE SECTION 3.1.2
PARAGRAPH B.
B.
CYLINDER M AY BE FLOODED WITH
EXCESSIVE OIL DUE TO DEFECTIVE
SOLENOID VALVE. (THE VALVE M AY
HAVE STUCK IN THE OPEN POSITION AT
THE M OM ENT OF PREVIOUS SHUT
DOWN, OR FOREIGN MATERIAL MAY BE
IN VALVE SEAT.)
TURN PUM P OVER BY HAND TO
REM OVE EXCESS OIL. DISASSEM BLE
VALVE, CLEAN AND REPLACE ANY
WORN PARTS. CHECK SOLENOID.
C.
OIL VISCOSITY IS TOO HIGH OR OIL
TEM PERATURE M AY BE TOO LOW.
1.
CHANGE TO LIGHTER GRADE OIL, OR
WARM OIL BEFORE POURING INTO
PUM P (ESPECIALLY WITH LOW
AM BIENT TEMPERATURES.) PUM P
SHOULD NOT BE STARTED WHEN OIL
TEM PERATURE IS LESS THAN 70
DEGREES F. (WHEN USING V-LUBE ā Fā .)
2.
TURN PUM P OVER BY HAND BEFORE
STARTING.
PU M P TURNS BA CKWARDS FORPU M P TURNS BA CKWARDS FOR
SEV ERAL REV OLU TIONS WHENSEV ERAL REV OLU TIONS WHEN
M OTOR IS TURN ED OFF.M OTOR IS TURN ED OFF.
PROBA BLE CA USE POSSIBLE REM EDY
A.
GAS BALLAST VALVE IN OPEN POSITION
WHEN PUMP WAS SHUT DOWN.
CLOSE GAS BALLAST VALVE BEFORE
SHUTTING OFF PUMP. THIS PREVENTS
ATMOSPHERIC AIR FROM REVERSING
DIRECTION OF PUMP PISTON WHEN
PUMP IS SHUTDOWN. THIS
PROCEDURE ALSO PREVENTS OIL FROM
BEING PUSHED INTO THE INLET PIPING.
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