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User manual Harbor Freight Tools, model 47907

Manafacture: Harbor Freight Tools
File size: 761.18 kb
File name: 47907.pdf
Language of manual:en
Free link for this manual available at the bottom of the page



manual abstract


Make sure the intake pipe is fully 2. submerged before continuing. Before starting the pump for the first 3. time, prime it by pouring clean water into the Priming Inlet. This is a self-starting pump that uses a 4. pressure switch. Once the power cord is connected and the unit is switched on, the pump can start at any time. Do not handle or perform maintenance on the pump if the power cord is plugged in. To begin pumping, plug in the power 5. cord and turn the switch on. When the line is pressurized, the pump will go to standby mode until the pressure falls below its starting pressure. Maintenance WARNING! Disconnect pump from power source before maintenance. Clean the inlet screen on the intake port 1. regularly to remove accumulated debris. Wipe the pump clean with a soft, damp 2. cloth with soapy water. Do not use solvents. Do not get the electrical components wet. Drain water from pump before storage 3. by disconnecting the water lines and turning the Pump upside down. If storing the pump for a long time, store it in a dry location, and apply a light layer of oil to the metal parts prior to storage, to inhibit rust. Do not expose to freezing temperatures. After storage, check the Impeller to make 4. sure it turns easily and is not oxidized. Note: Turn off the Switch and unplug the pump when performing maintenance. Troubleshooting Problem Cause Solution The pump won’t start No power.1. Pressure switch disconnected.2. Thermal Protection cut out.3. Blocked impeller.4. Check connections, and breaker/fuse.1. Check gauge.2. Allow pump to cool.3. Free the impeller.4. The pump operates but it won’t discharge water Pump not primed.1. Lift height exceeded.2. Inlet tube not submerged.3. Air in suction pipe.4. Inlet screen clogged.5. Prime pump.1. Reduce lift height.2. Submerge the inlet.3. Check pipe and seals.4. Clean screen.5. Only a low volume of water flows Inlet pipe is too small.1. Liquid is too dirty.2. Lifting height exceeded.3. Tank’s rubber bladder under-inflated.4. Piping corroded, causing friction.5. Increase pipe diameter.1. Clean screen frequently.2. Reduce lifting height.3. Inflate to 26-29 PSI.4. Replace piping, with plastic where 5. possible. Motor overheats often Extension cord too long or wire size too 1. small. Pump cycling too often.2. Eliminate use of extension cord or use 1. shorter/heavier gauge cord. Cut-in and cut-out pressure may be set 2. too closely; Have the pressure switch adjusted by a qualified technician. Pump/motor cycles rapidly Cut-in and cut-out pressure may be set too closely. Have the pressure switch adjusted by a qualified technician. Tank bladder will not hold pressure Air inlet valve is leaking. 1. Bladder is broken.2. Check air tank for leaks using soapy 1. water and replace bladder if needed. Replace bladder.2. Water pumps intermittently Water level is being drawn below foot valve. Lower foot valve. Follow all safety precautions whenever diagnosing or servicing the pump. Disconnect power supply before service. Do not disassemble the pump or motor as this will damage the water seals. All repairs should be performed by a qualified technician. REV 06i, 07g, 08l Problem Cause Solution Pump will not hold prime Foot/check valve not installed in suction 1. line. Foot/check valve leaks water back to well.2. Install foot and check valve in suction 1. line. Replace foot/check valve.2. Water is full of bubbles at outlet Pumping bubbles temporarily as air is 1. purged after initial setup. Leak in suction side of pump system.2. Well is gaseous.3. Water level below suction inlet of foot 4. valve. Temporary self-remedying issue. 1. Check for and fix leaks.2. Install a sleeve in the well.3. Lower suction line into water and re-4. prime. If water is deeper than 26 ft, then a deep well pump may be needed. Motor runs, but water is not pumping Improper priming. 1. Air leakage. 2. Vertical lift too high. 3. Water level below suction inlet of foot 4. valve. Frozen pipes. 5. Foot valve in dirt or sand.6. Foot/check valve clogged.7. Pressure switch is set too low.8. Prime the pump by pouring clean water 1. into the Priming Inlet. Check all pipes and joints in the suction 2. line for air leakage using soapy water. Reduce vertical lift to within 3. specifications. See Installation instructions. Lower suction line into water and re-4. prime. If water is deeper than 26 ft, then a deep well pump may be needed. Thaw the pipes. Bury pipes below 5. freeze line/insulate pipes. Raise foot valve to clean water level.6. Clean or replace foot/check valve.7. Have the pressure switch adjusted by 8. qualified technician (20-50 psi). Pump does not shut- off Pressure switch contacts welded together. 1. Faucet is open or leaking.2. Toilet leaking.3. Impeller is clogged.4. Tank bladder pressure is too low.5. Pipeline leakage.6. Foot/check valve leaks water back to well.7. Have the pressure switch replaced by a 1. qualified technician. Close or repair faucet.2. Repair leaky toilet.3. Clean impeller.4. Inflate to 2...


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