Harbor Freight Tools 2" Gasoline Powered Clear Water Pump 68375 - Manual (Page 17)

Page 15 For Pump technical questions, please call 1-800-444-3353. Item 68375
For Engine technical questions, please call 1-800-520-0882.
Pump Troubleshooting
Problem Possible Causes Likely Solutions
Pump overheats
1. Incorrect lubrication or not
enough lubrication.
2. Worn parts.
1. Lubricate using recommended oil or
grease according to directions.
2. Have qualified technician inspect internal
mechanism and replace parts as needed.
Unit stalls
1. Low engine speed.
2. Severely clogged air filter.
3. Improper lubrication.
1. Qualified technician should increase
no load speed to 3,800±100 RPM
by adjusting pressure switch.
2. Replace air filter.
3. Check for proper oil level.
Pump does not
pump water
1. Pump is not primed.
2. Intake Strainer clogged.
3. Air leak at intake connector.
4. Hose leaks.
5. Suction hose has collapsing wall.
6. Hose has too small diameter.
7. Pump is too high above water surface. 1. Prime Pump.
2. Clean Intake Strainer or replace if damaged.
3. Replace Coupling Gasket or tighten clamp.
4. Replace hose.
5. Use hose with non-collapsible wall.
6. Use hose with diameter 2" or greater.
7. Locate Pump at a lower level so it doesn’t
have to work so hard to lift the water.
Low Pump Output
1. Suction hose collapsed, damaged,
too long or diameter is too small.
2. Air leak at connector.
3. Strainer clogged.
4. Discharge hose damaged,
too long or diameter too small.
1. Replace or adjust suction hose.
2. Replace Coupling Gasket or tighten Clamp.
3. Clean Strainer.
4. Replace or adjust Discharge Hose.
Follow all safety precautions whenever diagnosing or servicing the equipment or engine.