A SERVICE OF

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turned off. The muffler area will be very hot. Allow to cool before servicing, if needed.
Run new or newly maintained machine at low speed with low load during the first 20 hours. Do not
run it at high speed with full load.
MAINTENANCE
WARNING: Make sure this tool is disconnected from its power source before attempting
any maintenance, cleaning, or inspection.
• Maintain your water pump. It is recommended that the general condition of any tool be
examined before it is used. Keep your tools in good repair by adopting a program of
conscientious repair and maintenance in accordance with the recommended procedures found in
this manual. If any abnormal vibrations or noise occurs, turn the tool off immediately and have
the problem corrected before further use. Have necessary repairs made by qualified service
personnel.
• Cleaning. Use only soap and a damp cloth to clean your water pump. Many household cleaners
are harmful to plastics and other insulation.
TROUBLESHOOTING MALFUNCTIONS AND REMEDIES
Malfunction
Cause
Remedy
Water is not enough.
Refill water into the pump.
Inlet pipe leakage.
Check inlet pipe and connector of pipe, change the pipe or tighten
the screw.
Speed of pump is
too low.
Check speed and find cause for remedy.
The filter net is
obstructed.
Check and clean up.
It is over the
capacity of pump.
Check the position of installation.
The pump cannot pump water.
The seal was
damaged and air
leaked.
Change the machinery seal set.
The filter net,
pipeline or impeller
is choked.
Clean the obstruction.
Speed is low.
Increase speed.
Impeller’s seal is
worn.
Adjust the gap or change impeller and machinery seal.
The flow of water is
not enough
Inlet pipe leaking.
Check inlet pipe and connector of pipe, change the pipe or screw
down the bolt.
Malfunction
Cause
Remedy