Product Manual
7
Operation Instructions
Water Supply
1.) Make sure the water supply is clean. Debris can cause excess pump wear and reduce
performance.
2.) An insufficient water supply will damage your pump. Make sure the water supply is steady and
is 20% over the rated flow of your pump. Use a stopwatch to time how long it takes to fill a 5-
gallon bucket with your garden hose. The bucket must fill faster than the times listed in the
table below.
Model
Time to fill 5-gallon bucket
A157204
63 seconds
A157205
56 seconds
A157207
50 seconds
A157304
56 seconds
A157598
**tank only
A1572041
72 seconds
A1572042
46 seconds
A1572081
56 seconds
A1572082
42 seconds
A1572091
50 seconds
A1572092
36 seconds
A157134
72 seconds
A157136
72 seconds
A1571107
125 seconds
A1571108
80 seconds
A1571109
63 seconds
3.) The water supply garden hose must have an inside diameter of at least 5/8”. If the hose is
more than 100 ft. long, the diameter must be at least 3/4”.
4.) Always use a flexible rubber hose for your water supply. Do not use rigid piping.
5.) Never use a reservoir tank as a water source with the exception of pump A157598. Drawing
water out of a tank may cause pump cavitation and damage to your pump. This pressure
washer is designed for a pressurized water source such as a city water faucet. However, the
water source pressure must not exceed 115 psi (8 bar).
6.) **Warning: The A157598 pump can only be used with a tank. Direct feed from a normal city
water hookup can cause cavitation and damage to your pump. Inadequate plumbing between
a feed tank and the pressure washer can cause damage to the pump from cavitation.
Cavitation will occur if you select too small of fittings and hose to connect the feed tank to the
pressure washer. (We recommend ¾” hose and fittings or larger) Also, place the pressure
washer right next to the feed tank so the connection hose will be as short as possible.
Connecting to motor/engine
See Specifications section for maximum RPM of the pump and horsepower required.
Keep a fire extinguisher rated “ABC” nearby. Keep it properly charged and be familiar with its use.
Model
Direction of Rotation
A157204, A157205, A157207,
A157304, A157598, A1572042,
A1572081, A1572082,
A1572091, A1572092, A157134,
A157136, A1572041, A1571107,
A1571108, A1571109
Bi-directional