43
OPERATION INSTRUCTION
SANDPUMPER II
TROUBLESHOOTING GUIDE
* SURGE TANK –
NOTE: DO NOT ATTEMPT TO REMOVE SURGE TANK WITHOUT FIRST RELIEVING ALL PRESSURE FROM SYSTEM. WEARING OF
A FACE SHIELD IS RECOMMENDED.
PRESSURE CAN BE RELIEVED FROM SYSTEM BY OPENING THE SPRAY WAND AND RECIRCULATION VALVES, ALSO IF THERE IS A (
OPTIONAL
)
SPRAY BAR, OPEN THE SPRAY BAR FEED VALVE.
KEEP IN MIND THE PLUMBING CONNECTING THE PUMP TO THE SURGE TANK COULD ALSO BE PLUGGED, AND THERE MAY BE RESIDUAL
PRESSURE STILL IN THE SYSTEM
PROBLEM
PUMP
WILL NOT CYCLE
PUMP
CYCLES BUT WILL NOT PUMP MATERIAL
MATERIAL
COMES OUT AIR VENT HOLES
MATERIAL
COMES OUT BETWEEN FLANGES
HYDRAULIC OIL
COMES OUT VENT HOLES
PUMP
WILL NOT GO OUT OF NEUTRAL
SPRAY
PULSATES
POSSIBLE CAUSES/SOLUTIONS
BASKET STRAINER AND/OR LINES CLOGGED / CLEAN STRAINER AND/OR LINES
TOGGLE SWITCH HAS NO POWER / CHECK FUSE OR WIRING
SOLENOID COIL HAS NO POWER / CHECK ALL SWITCHES FOR OPEN CIRCUIT
SOLENOID COIL HAS POWER WIL NOT ACTIVATE / REPLACE SOLENOID COIL
STOP COLLARS HAVE MOVED/ REPOSITION COLLARS OVER MARKS-RETIGHTEN
PRESSURE GAUGE SHOWS PRESSURE BUT
WILL
GO UP AND DOWN WHEN TURNING PUMP PRESSURE
CONTROL VALVE / RELIEVE HYDRAULIC PRESSURE, REMOVE SOLENOID, UNSCREW CARTRIDGE FROM BODY,
PRESS IN ON PLUNGER. IT SHOULD MOVE APPROXIMATELY 3/16 INCH AND SPRING BACK TO ITS ORIGINAL
POSITION.
PRESSURE GAUGE SHOWS PRESSURE BUT
WILL NOT
GO UP AND DOWN WHEN TURNING PUMP PRESSURE
CONTROL VALVE / CONTAMINATION IN PUMP PRESSURE CONTROL VALVE-CONSULT WITH FACTORY.
BASKET STRAINER AND/OR LINES CLOGGED / CLEAN STRAINER AND/OR LINES
DRUM SUCTION VALVE OR WATER FLUSH VALVE OPEN / CHECK VALVES TO ENSURE THAT THEY ARE
CLOSED TIGHT
CHECK BALL MANIFOLD CLOGGED/ REMOVE UPPER AND LOWER SECTIONS OF CHECK BALL AND CLEAN
DIAPHRAGM CHAMBER PLUGGED / REMOVE CHAMBERS AND CLEAN
RUBBER GASKET ON BASKET STRAINER LID IS CUT / REPLACE RUBBER GASKET
DIAPHRAGM HAS RUPTURED / REPLACE DIAPHRAGM
DIAPHRAGM COLLAR BEAD HAS PULLED OUT OF GROOVE/ REMOVE FLANGE AND RESET DIAPHRAGM IN
GROOVE
CYLINDER ROD SEALS LEAKING / RETURN HYDRAULIC CYLINDER TO FACTORY REPAIR
MATERIAL NOT GETTING TO PUMP / FOLLOW PROCEDURES OUTLINED IN STEP - PUMP CYCLES BUT WILL
NOT PUMP MATERIAL
AIR TRAPPED IN PUMP / OPEN BYPASS VALVE
* SURGE TANK IS PLUGGED / RELIEVE ALL PRESSURE FROM SYSTEM. REMOVE SURGE TANK AND CLEAN
PUMP IS NOT SHIFTING COMPLETE STROKE / ONE DIAPHRAGM CHAMBER IS PLUGGED. REMOVE AND CLEAN
Summary of Contents for SP 300
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Page 41: ...39 SQUEEGEE SP300 DUAL SPRAY SANDPUMPER II SANDPUMPER II ...