Operation instructions – Northern Industrial Tools M1578112A User Manual

Page 12

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Operation Instructions

12


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

1577543

100 seconds

1577544

100 seconds

1578112

100 seconds

1578203

72 seconds

1578152

72 seconds

1578172

100 seconds

1578182

84 seconds

1578202

72 seconds

1578173

100 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.) Never use a reservoir tank as a water source. 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).

5.) Always use a flexible rubber hose for your water supply. Do not use rigid piping.




















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