
Gorlitz Jetters Operating & Maintenance Manual 6
LIQUID INJECTOR
THE CHEMICAL INJECTION WITH A FIXED OR ADJUSTABLE FEED RATE SHOULD BE INSTALLED BETWEEN
THE PRESSURE REGULATOR AND THE REEL. THIS ADDED FEATURE PERMITS THE OPERATOR TO ADD A
CLEANING OR SOAP SOLUTION TO THE WATER FLOW. A HIGH/LO NOZZLE MUST BE USED IN ORDER TO
ACTIVATE THE CHEMICAL INJECTOR.
FOR PERFORMANCE, SPECIFICATIONS, INSTALLATION AND HOW TO SERVICE THE
CHEMICAL INJECTOR REFER TO THE OPERATING INSTRUCTIONS SUPPLIED BY THE PUMP
MANUFACTURER.
PULSATOR
THE PULSATOR PRODUCES A SHORT INTERRUPTION OF WATER FLOW NOTICED AS A VIBRATION FELT
THROUGHOUT THE JETTING HOSE (MORE OBVIOUS WITH SMALL DIAMETER HOSE). THIS PULSATION
PERMITS A BETTER HOSE MOVEMENT THROUGH THE PIPE AND ALSO HELPS TO CUT THROUGH
OBSTRUCTIONS WITH EASE. WHEN STARTING YOUR MOTOR UNDER NORMAL OPERATING CONDITIONS,
THE PULSATOR VALVE SHOULD ALWAYS BE OFF.
NEVER USE POISONOUS OR CORROSIVE SOLUTIONS AS A CLEANING OR CUTTING AGENT.
THE PULSATION DIAL OR KNOB SHOULD ONLY BE TURNED IN UNTIL VIBRATION IS ACTIVATED.
CONTINUED TURNING OF THE DIAL OR KNOB WILL DAMAGE THE PUMP.
ONCE IN THE PULSATION MODE, THE OPERATOR SHOULD ALWAYS AND CONTINUOUSLY
MOVE THE JETTER HOSE TO AVOID EXCESSIVE WEAR AND TEAR OF THE HOSE.
PRESSURE REGULATOR
THE PRESSURE REGULATOR KNOB, LOCATED AT THE PUMP, ALLOWS THE OPERATOR TO ADJUST
THE PRESSURE DURING OPERATION. THE ADJUSTMENT SHOULD BE PERFORMED ONLY AFTER
THE MOTOR/ENGINE HAD BEEN STARTED. IT IS RECOMMENDED TO START ELECTRIC UNITS WITH
AS LITTLE PRESSURE AS POSSIBLE TO AVOID TRIPPING A CIRCUIT BREAKER. THEN GRADUALLY
INCREASE TO NORMAL WORKING PRESSURE. ON GASOLINE POWERED MODELS THE PRESSURE
AND RPM OF THE ENGINE ARE DIRECTLY RELATED. LOW RPM EQUALS LOW PRESSURE, HIGH
RPM EQUALS HIGH PRESSURE ON LARGER DIAMETER HOSE. ON SMALLER DIAMETER HOSE
THE PRESSURE REGULATOR MUST BE MANUALLY ADJUSTED TO REACH LOWER PRESSURE
SETTINGS DUE TO LESS WATER VOLUME PASSING THROUGH HOSE. IF DESIRED THE PRESSURE
REGULATOR CAN BE ADJUSTED FROM ZERO TO DESIRED PRESSURE SETTINGS AFTER STARTING
ENGINE AND ATTAINING PROPER ENGINE RPM IN RELATION TO EXPECTED PRESSURE SETTING.
DUE THE HIGH SENSITIVITY OF THESE REGULATORS THEY ARE NOT COVERED IN THE WARRANTY.
PRESSURE SETTINGS: 1250 PSI (1500 PSI MAXIMUM) FOR 2 HP ELECTRIC MODELS
2750 PSI (3000 PSI MAXIMUM) FOR 389 cc GASOLINE MODELS
3250 PSI (3500 PSI MAXIMUM) FOR 688 cc GASOLINE MODELS
MACHINE SETUP CHECK LIST
GORLITZ JETTERS SHOULD BE GIVEN THE BEST OF CARE. IF KEPT CLEAN AND LUBRICATED, THEY
CAN PROVIDE MANY YEARS OF TROUBLE-FREE SERVICE. THE FOLLOWING INSTRUCTIONS SHOULD BE
CAREFULLY OBSERVED AT ALL TIMES:
• CHECK FUEL SUPPLY ON GASOLINE OPERATED JETTERS.
• TEST GFCI ON ELECTRIC DRIVEN JETTERS.
• CHECK OIL LEVEL AT PUMP.
• CHECK WATER INLET STRAINER.
• CHECK JETTING HOSE FOR KINKS OR EXCESSIVE WEAR.
• CHECK ALL HOSE AND REEL CONNECTORS.
• CHECK JETTING NOZZLE FOR ANY CLOGGED HOLES.
• CHECK FOR ADEQUATE WATER SUPPLY.
WATER FLOW RATE:
3 GPM MINIMUM FOR 2 HP ELECTRIC MODELS
5 GPM MINIMUM FOR 389 cc GASOLINE MODELS
7 GPM MINIMUM FOR 688 cc GASOLINE MODELS
REPAIR OR REPLACE ANY UNSAFE PART WHICH MAY CAUSE THE JETTER TO MALFUNCTION.