background image

Changing Nozzles on Spray Wand

DO NOT attempt to
change nozzles

while pressure washer is running.
Turn engine off before changing
nozzles.

1.   Pull quick connect coupler back

and insert nozzle.

2.

Release quick connect coupler
and twist nozzle to make sure it is
secure in coupler.

Risk Of Injury.
Ensure nozzle is

completely inserted in QC socket,
and QC snap ring is fully engaged
(forward) before squeezing gun
trigger.

Risk of injection or
injury to person. Do

not direct discharge stream toward
persons, unprotected skin, eyes, or
any pets or animals. Serious injury
can occur.

10- ENG

A00732

STARTING

Prior to starting, refer to your engine
manual for proper starting
procedure.

1.

In a well ventilated outdoor area

add fresh, high quality, unleaded
gasoline with a pump octane
rating of 86 or higher.  Do not
overfill. Wipe up spilled fuel before
starting the engine. Refer to
Engine Owners Manual for correct
procedure.

2.

Check engine oil level.

See

Engine Owners Manual for correct
procedure. 

3.

Verify the filter
screen

is in

water inlet of
pump. 

NOTE:

Cone side faces
out.

HOW TO APPLY CHEMICALS
AND CLEANING SOLVENTS 

Applying chemicals or cleaning
solvents is a low pressure operation.

NOTE:

Use only soaps and chemicals

designed for pressure washer use. 

Do

not use bleach.

To Apply chemicals:

1.

Press chemical
hose

onto barbed

fitting located near
high pressure hose
connection of
pump as shown.

Barbed

Fitting

2.

Place other end 

of chemical hose

with filter on it into container holding
chemical/cleaning solution. 

NOTE:

For every 7 gallons of water
pumped 1 gallon of
chemical/cleaning solution will be
used.

3.

Install low pressure (black) nozzle

into quick connect fitting of spray
wand, see How To Use Spray Wand
paragraph in this section.

4.

After use of chemicals,

place

chemical hose into container of
clean water and draw clean water
through chemical injection system
to rinse system thoroughly. If
chemicals remain in the pump it
could be damaged. Pumps
damaged due to chemicals will not
be covered under warranty.

NOTE: 

Chemicals and soaps will not

siphon when spray wand is in the high
pressure setting.

Filter Screen

Summary of Contents for ZR3700

Page 1: ...ructions 2 5 Carton Contents 6 Assembly Instructions 6 Operating Instructions 7 11 Maintenance 11 12 Storage 13 Trouble Shooting Guide 14 15 Warranty 16 Espa ol 17 32 Record All Information and attach...

Page 2: ...ush grass or other similar items then an approved spark arrester must be installed and is legally required in the state of California It is a violation of California statutes section 130050 and or sec...

Page 3: ...mals Some cleaning fluids contain substances which could cause injury to skin eyes or lungs Use only cleaning fluids specifically recom mended for high pressure washers Follow manufacturers recommenda...

Page 4: ...clothing to protect eyes and skin from contact with sprayed materials Use of acids toxic or corrosive chemicals poisons insecticides or any kind of flam mable solvent with this product could re sult...

Page 5: ...ion of your pressure washer could lead to serious injury or death to you or others Do not use chlorine bleach or any other corrosive compound Become familiar with the operation and con trols of the pr...

Page 6: ...es on panel 3 Place handle assembly onto frame depress the snap buttons and slide the handle assembly onto the frame until snap buttons snap into place CARTON CONTENTS Engine Frame and Wheel Assembly...

Page 7: ...mpare the illustrations with your unit to familiarize yourself with the location of various controls and adjustments Save this manual for future reference Engine High Pressure Hose Spray Gun Quick Con...

Page 8: ...rove cleaning effectiveness Water Supply All pressure washers must have a source of water The minimum requirements for a water supply are 20 PSI and 5 gallons per minute 3 Adjust the pres sure regulat...

Page 9: ...NOT use hot water use cold water only NEVER turn water supply off while pressure washer engine is running or damage to pump will result DO NOT stop spraying water for more than two minutes at a time...

Page 10: ...anual for correct procedure 3 Verify the filter screen is in water inlet of pump NOTE Cone side faces out HOW TO APPLY CHEMICALS AND CLEANING SOLVENTS Applying chemicals or cleaning solvents is a low...

Page 11: ...of clean water and draw clean water through chemical injection system to rinse system thoroughly NOTE Failure to do so could cause damage to the pump 2 Turn engine off See Engine Owner s Manual NOTE N...

Page 12: ...il 1 Remove dipstick oil plug from pump and wipe clean 2 Insert dipstick oil plug fully into pump then remove it 3 Oil level is correct when oil covers the lower 1 2 inch of end of dipstick oil plug H...

Page 13: ...p protector winterizer or RV antifreeze is to provide proper lubrication to the internal seals of the pump regardless of temperature or environment 1 Obtain a funnel six ounces of RV antifreeze and 16...

Page 14: ...GPM 20 PSI Leak at high pressure hose fitting Repair leak Apply sealant tape if necessary Nozzle obstructed See Nozzle Cleaning instructions in the Maintenance section Water filter screen clogged Remo...

Page 15: ...e Check and replace Loose hose connection Loose connections Tighten Piston packings worn Have replaced by AWSC Worn or broken o rings Have replaced by AWSC Pump head or tubes damaged from freezing Hav...

Page 16: ...purchaser does not receive satisfactory results from the Authorized Warranty Service Center the purchaser should contact DeVilbiss Air Power Company THIS WARRANTY DOES NOT COVER Merchandise sold as r...

Reviews: