Harbor Freight Tools 98135 Automobile Parts User Manual


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Page 11SKU 98135 For technical questions, please call 1-800-444-3353.
Troubleshooting
Problem Possible Causes Likely Solutions
Motor Stalls Bypass Valve (28) sticking1.
Low voltage.2.
Excessive Rotor (34) or Vane 3.
(33) wear.
Remove and inspect Bypass Valve (28).1.
Check incoming line voltage.2.
Inspect Rotor (34) and Vanes (33) for 3.
excessive wear or damage and if necessary,

technician.
Motor overheats  1.
Clogged Screen (25).2.
Restricted Suction Pipe (58), 3.
or Suction Pipe Extension
(59).
Damaged, or worn Armature 4.
(3).
Motor failure.5.
Pump may need to rest 5 minutes after every 1.
5 minutes of pumping.
Remove and clean Screen (25).2.
Remove and clean Suction Pipe (58) and/or 3.
Suction Pipe Extension (59).
Replace Armature (3).4.
5.
technician.
Motor will not turn
on
No Power.1.
Switch failure.2.
Motor failure.3.
Thermal Protector (8) or fuse 4.
failure.
Check incoming power source.1.
Check Line Switch (17).2.
3.
Check Thermal Protector (8) and fuse and 4.
replace if needed with identical part by

Fluid leakage Bad O-Ring or Gasket. 1.
Dirty shaft seal.2.
Bad shaft seal.3.
4.
Check all O-Rings and Gaskets. 1. (See Parts
List on page 12 of this manual.)
Clean seal and seal cavity.2.
Replace seal with identical part.3.
4.
this manual.
Follow all safety precautions whenever diagnosing or servicing the pump.
Disconnect power supply before service by qualied technician only.
PLEASE READ THE FOLLOWING CAREFULLY








ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER
INSTALLATION OF REPLACEMENT PARTS THERETO.
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