beautypg.com

Harbor Freight Tools 99741 User Manual

Page 11

background image

For technical questions, please call 1-800-444-3353;

troubleshooting section at end of manual.

SKU 99741

PAGE 11

cautIOn! NEVER use any products not

designed for pressure washer use,

nor any products with chlorine or any

caustic materials, including liquids

containing solvents, trisodium phos-

phate products, ammonia, or acid-

based cleaners.
Fill the Detergent Dispenser only

when the unit is not running or

plugged in.

Setup

CHECK THE WATER SUPPLy.

1.

Prior to

using the Pressure Washer for the first

time, it is ESSENTIAL to verify that the

water supply is adequate. The Pres-

sure Washer needs TWICE the water

supply (or volume) than the stated

water output (1.6 GPM). This Pres-

sure Washer will need about 3-4 GPM

to operate correctly and efficiently. If

the water is being supplied by a well/

pump, make certain that the well/pump

produces enough water to keep up with

the Pressure Washer’s water demands.

Water supply hoses should be heavy

duty to withstand the forces involved.

Water hoses up to 25’ long must be

5

/

8

ID. Water hoses up to 50’ long must be

3

/

4

” ID. Do not use hoses longer than

50’. The more minerals in the water

(the harder the water) you use, the

more often mineral buildup will need

to be cleaned out from the nozzles.

Flow rate of the water supply must nev-

er be allowed to fall below 3 GPM.

To determine the water supply’s flow

rate: Run the water at full for one

minute into a 5 gallon container, and

measure the amount of water in the

container.

CAUTION! If the Pressure Washer is

run with an inadequate water supply, the

pump will cavitate. Cavitation causes the

pump to operate loudly and will damage it.
ARRANGE FOR A PROPER ELEC-

2.

TRICAL SUPPLy. This unit uses

a large amount of current, espe-

cially during start-up. Turn off power

switch, then connect this unit only to

a dedicated household circuit capable

of providing ample current to it. A

dedicated circuit has no additional

loads (running devices) connected to

it; shut off any appliances that slow

down or lights that dim while the

washer is running. For best results,

connect the plug to that circuit’s outlet

that is nearest to the circuit breaker

panel.
MAKE SURE THE WASHER IS

3.

CLEAN AND READy FOR USE. En-

sure the inlet water strainer, nozzle,

and the rest of the Washer are com-

pletely free of buildup or debris.
PLAN OUT THE jOB:

4.

Plan out what

areas will be cleaned, how many ses-

sions will be necessary, and how long

the individual sessions of work will

need to be. Plan to clean the higher

portions first, because the higher

portions will typically remain cleaner

while the other areas are cleaned.

Plan a safe direction for runoff to

flow while the job is being performed,

and plan on working your way in that

direction. you will have a clearer idea

of the time involved to clean the area

after doing a test run, as explained on

page 14.