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Pressure Washers

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equipped, turn on the on/off
switch to the “on” position.

7. Start the engine.

If the engine is cold, completely close
the engine choke.

If the engine is warm, leave the
choke open or just partially closed.
Unlock the trigger safety latch on
the gun. Grasp the starter rope and
brace one foot on the chassis. While
squeezing the trigger on the gun,
pull the starter rope rapidly and
firmly. Continue holding the rope as
it returns. Repeat these steps until
the engine starts. In cool weather,
the choke may have to be kept
closed for 10 to 30 seconds to keep
the engine running. Otherwise,
open the choke as soon as the
engine starts.

When pulling the 
starter rope, make

sure to keep your hand and arm clear
of the engine and cart components.

Never let the starter

rope return by itself.

Doing so could jam the recoil system.

8. If the engine does not start after two

or three pulls or if the rope is hard to
pull, squeeze the gun trigger to
release the pressure that has built up
in the high pressure hose. Repeat
Steps 7 and 8 until the engine starts. 

After the engine starts, trigger the gun
3 to 5 times to get any trapped air out
of the system. After the spray becomes
constant, you may need to adjust the
pressure or the spray fan angle for the
optimal cleaning performance needed
(see pages 7, 8 and 9 for cleaning tech-
niques).

PRESSURE ADJUSTMENT

Some units have a pressure adjustment
knob located on the pump (see Figure
10). Turn the knob clockwise to
increase the pressure. Turn the knob
counter clockwise to decrease the pres-
sure. Do not try and force the knob to
turn. The knob may already be at
either the lowest or highest setting.

NOTICE

!

CAUTION

a. If inlet water pressure is over 100

psi, install a regulating water valve
at the garden hose connection. 

b. Do not exceed 100˚ F (38˚ C) inlet

water temperature.

NOTE

: The inlet water supply must have a

minimum flow rate of 8 gpm (30 lpm).

4.  Turn the water supply ON.

Never run the unit 
dry. Be sure the

water supply is completely turned on
before operating the unit.

5.  Trigger the gun until water sprays

from the tip indicating that all air is
purged from the system. Set the trig-
ger safety latch.

6. a.

Honda Engines

: Open the fuel

shutoff valve by pushing the shut
off valve lever to the right. Close
the choke (if engine is cold) by
moving the choke lever fully to
the left. Move the throttle, if
equipped, fully to the left to the
Run or Rabbit position. If
equipped, turn on the on/off
switch to the “on” position.

b.

Briggs and Stratton Engines:
Vanguard Series:

Open the fuel

shutoff valve by rotating lever to
the vertical position. Close the
choke (if engine is cold) by moving
the choke lever fully to the left.
Move the throttle, if equipped,
fully to the left to the Run or
Rabbit position. If equipped, turn
on the on/off switch to the “on”
position.

Intek Series: 

Open the fuel shut-

off valve by rotating lever to the
horizontal position. Close the
choke (if engine is cold) by moving
the choke lever fully to the right.
Move the throttle, if equipped,
fully to the right to the Run or
Rabbit position. If equipped, turn
on the on/off switch to the “on”
position.

c.

Robin Engines: 

Open the fuel

shutoff valve by turning the lever
to the downward position. Close
the choke (if the engine is cold) by
moving the choke lever fully to the
left. Move the throttle fully to the
left to the Run or Rabbit position. If

NOTICE

6

The following cleaning procedure will
help you organize your cleaning task and
ensures that you will achieve the best
results in the shortest amount of time.
Remember to use the spraying / cleaning
techniques mentioned in the following
section.

Before starting a pressure washer clean-
ing job, prepare the surface you intend to
clean. Clear furniture from the area and
make sure that all windows and doors
are closed tightly. Also, protect all plants
and trees near the cleaning area with a
drop cloth. A covering ensures that your
plants won’t be sprayed by the deter-
gents.

ALWAYS use this start up procedure to
ensure that the unit is started safely and
properly.

If water has frozen 
in the pressure

washer, thaw the pressure washer in a
warm room before starting. DO NOT
pour hot water on or into the pump;
internal parts will be damaged.

1.  Check engine oil levels. Add oil as nec-

essary.

NOTE

: Some units are equipped with a

low oil sensor that shuts the engine off if
the oil level falls below a certain level. If
the unit stops unexpectedly, check both
the oil and fuel levels. Check the oil level
each time you refuel the unit.

2.  Check fuel level.

DO NOT refuel a 
hot engine.

Refueling a hot engine could cause a
fire. Use only fresh, clean regular or
unleaded gasoline. Close the fuel shut-
off valve during refueling.

3.  Attach a garden hose to the inlet side

of the pump and connect it to the
water supply. Use a hose with an I.D.
of 5/8” and a length of 50 ft. (15 m)
or less.

Some local plumb- 
ing codes require

backflow prevention when connecting
to a fresh water supply. Install a back-
flow preventer upstream from the
pump if necessary.

NOTICE

!

WARNING

NOTICE

Operation

1. Surface Preparation

2. Start Up

3. Initial High Pressure Rinse

Summary of Contents for PW2220

Page 1: ...ormation 10 11 Troubleshooting Chart 12 13 Service Record and Notes 13 Warranty 14 Contents Page For parts product service information visit www chpower com Please record Model No and Serial No for us...

Page 2: ...tip with the exception of black Black tip is used for low pressure detergent application How do I get the soap suction to work 1 Attach clear plastic tube to brass barb on pump See Page 4 2 Insert fi...

Page 3: ...orn or damaged parts immediately Use only the nozzle supplied with this machine Never leave the wand unattended while the machine is running Never tamper with the engine gov ernor or attempt to alter...

Page 4: ...ate the unit if it s damaged during shipping handling or use Damage could result in bursting and cause injury or property damage ASSEMBLY Use 1 2 wrench to assemble pressure washer 1 Slide the handle...

Page 5: ...ngage it See Figure 9 Always engage the trigger safety latch when the unit is not in use 5 Pre Operation Continued www chpower com Figure 9 Trigger lock Trigger lock not engaged Trigger lock engaged F...

Page 6: ...ff switch to the on position b Briggs and Stratton Engines Vanguard Series Open the fuel shutoff valve by rotating lever to the vertical position Close the choke if engine is cold by moving the choke...

Page 7: ...an generate maximum impact by striking the surface head on However this type of impact can cause dirt parti cles to embed in the surface and can prevent the desired cleaning action The optimum angle f...

Page 8: ...CE NOTICE and prevent the application of the deter gent Once applied to a cleaning surface deter gents take time to break down dirt and grime Detergents work best when applied at low pressure You can...

Page 9: ...em is pressurized To depressurize turn engine motor off turn water supply off and squeeze gun trigger 2 3 times 5 After each use wipe all surfaces of the pressure washer with a clean damp cloth Do not...

Page 10: ...a hot water supply as it will significantly reduce the life of the pump 3 Running the unit for more than one minute without spraying water causes heat to build up in the pump Running the unit without...

Page 11: ...l Fill as necessary Change engine break in oil Use SAE30 or 10W 30 detergent oil Change pump oil Change engine oil if operating under heavy load or high ambi ent temperature Remove and clean foam pre...

Page 12: ...Nozzle worn 3 Valve worn dirty or stuck 4 Unloader valve seat worn or dirty 5 Nozzle in low PSI position 1 Pump drawing in air low water supply 2 Valves dirty or worn 3 Worn bearings 4 Water too hot 1...

Page 13: ...vided with initial purchase of pressure washer Detergent suction will not function if more than once section of hose is attached to unit 4 Remove lance from gun If detergent is dispensed through gun t...

Page 14: ...all and operate pres sure washer in accordance with instructions provided in the owner s manual s supplied with product D Pre delivery service i e assembly oil or lubricants and adjustment E Items or...

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