J SERIES M ICROV A CJ SERIES M ICROV A C VA CU V A CUUM PU M P UM PU M P
PA GE 5-1
5.05.0 TROUBLESHOOTING GUIDTROU BLESHOOTING GUID EE
VACUUM A T PUM P ISVACUUM A T PUM P IS
UNSATISFACTORYUNSA TISFACTORY
PROBA BLE CA USE POSSIBLE REM EDY
A.
CONTAM INATED OR INSUFFICIENT OIL. 1.
CHECK OIL LEVEL; UTILIZE GAS
BALLAST.
2.
DRAIN AND WIPE OUT RESERVOIR AND
VALVE CHAMBER. REFILL WITH
PROPER OIL.
B.
SOLENOID OIL VALVE NOT OPERATING
PROPERLY OR INOPERATIVE.
CHECK AND, IF NECESSARY CLEAN AND
OR REPLACE SOLENOID VALVE OR COIL.
C.
LOOSE INTAKE FLANGE OR COVER
BOLTS.
TIGHTEN FLANGE AND SIDE COVER
BOLTS AT REGULAR INTERVALS.
D.
OIL M ANIFOLD OR INTEGRAL OIL
DISTRIBUTION LEAKING.
TIGHTEN PLUGS AND M ANIFOLD
SCREWS.
E.
OIL LEVEL SIGHT GLASS LEAKING CAREFULLY TIGHTEN SCREWS.
F.
EXHAUST VALVE NOT SEALING 1.
DISASSEM BLE, CLEAN AND CHECK ALL
PARTS THOROUGHLY.
2.
REPLACE ANY DAMAGED OR WORN
PARTS.
G.
PUM P SEIZES OR KNOCKS
EXCESSIVELY; INTERNAL PARTS BADLY
WORN OR BROKEN
DISASSEM BLE PISTON ASSEM BLY.
REPLACE WORN, BROKEN OR BADLY
SCORED PARTS.
H.
LEAKAGE IN VACUUM SYSTEM CHECK SYSTEM AS DESCRIBED IN
SECTION 4.0.
VACUUM PUM P EX CESSIV ELYVACUUM PUM P EX CESSIV ELY
NOISYNOISY
PROBA BLE CA USE POSSIBLE REM EDY
A.
PUM P KNOCKING 1.
CHECK OIL LEVEL, AND OIL SOLENOID
VALVE FOR PROPER OPERATION.
2.
BROKEN PARTS OR FOREIGN M ATERIAL
IN THE PUM P.
3.
DISASSEM BLE AND REM OVE FOREIGN
M ATERIAL IN THE PUMP.
4.
REPLACE BROKEN PARTS AS
REQUIRED.
B.
PUM P SEIZES DUE TO LACK OF
LUBRICATION, OR PRESENCE OF
FOREIGN M ATERIAL.
1.
CHECK SOLENOID VALVE FOR PROPER
OPERATION.
2.
DISASSEM BLE AND REM OVE FOREIGN
M ATERIAL. MAKE SURE OIL LINES ARE
NOT CLOGGED.
3.
SM OOTH MINOR SCORING WITH #500
EM ERY CLOTH AND WASH
THOROUGHLY THEN OIL BEFORE
INSTALLING. (A CERTAIN AM OUNT OF
SCORING TO THE PISTON AND
CYLINDER AND OTHER PARTS USUALLY
WILL NOT SERIOUSLY AFFECT THE
VACUUM OBTAINABLE SO LONG AS
SCORING IS NOT IN A CONTINUOUS
GOUGE AROUND THE CIRCUMFERENCE
OF THE PISTON SURFACE.)
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