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8.780-016.0

 • Xpert-HD/DD • Rev. 10/09

11

 

 PRESSURE WASHER

  

 OPERATOR’S MANUAL

  

WARNING:  Some  detergents 
may  be  harmful  if  inhaled  or 
ingested, causing severe nau-
sea, fainting or poisoning. The 
harmful  elements  may  cause 
property  damage  or  severe 
injury.

Step 1: Connect detergent injector to discharge nipple 
on machine. Connect high pressure hose to injector 
with quick coupler. (Check to make sure locking coupler 
sleeves are in proper position before applying water 
pressure).

Step  2:  Use  detergent  designed 
specifically  for  pressure  washers. 
Household  detergents  could  dam-
age  the  pump.  Prepare  detergent 
solution  as  required  by  manufac-
turer.  Fill  a  container  with  pressure 
washer detergent. Place filter end of 
detergent suction tube into detergent 

container.

Step 3: With safety latch on spray 
gun engaged, secure black detergent 
nozzle  into  quick  coupler.   

Note:  

Detergent  cannot  be  applied  using 
red, yellow, green or white nozzles.
Step  4: With  the  engine  running, 

pull  trigger  to  operate  machine.  Liquid  detergent  is 
drawn into the machine and mixed with water. Apply 
detergent to work area. Do not allow detergent to dry 
on surface. 

IMPORTANT: You must flush the detergent injec-
tion system after each use by placing the suction 
tubeinto a bucket of clean water, then run the pres-
sure washer in low pressure for 1-2 minutes.

tHermAl pUmp proteCtIoN

If you run the engine on your pressure washer for 1-2 
minutes without pressing the trigger on the spray gun, 
circulating water in the pump can reach high tempera-
tures. When the water reaches this temperature, the 
pump protector engages and cools the pump by dis-
charging the warm water onto the ground. This thermal 
device prevents internal damage to the pump.

CleANING tIpS

Pre-rinse cleaning surface with fresh water. Place de-
tergent suction tube directly into cleaning solution and 
apply to surface at low pressure (for best results, limit 
your work area to sections approximately 6 feet square 
and always apply detergent from bottom to top). Allow 
detergent to remain on surface 1-3 minutes. Do not al-
low detergent to dry on surface. If surface appears to 
be drying, simply wet down surface with fresh water. 
If needed, use brush to remove stubborn dirt. Rinse 
at high pressure from top to bottom in an even sweep-
ing  motion  keeping  the  spray  nozzle  approximately  
1 foot from cleaning surface. Use overlapping strokes 
as you clean and rinse any surface. For best surface 
cleaning action spray at a slight angle.

recommendations:

  •  Before  cleaning  any  surface,  an  inconspicuous 

area should be cleaned to test spray pattern and 

distance for maximum cleaning results.

  •   If painted surfaces are peeling or chipping, use 

extreme caution as pressure washer may remove 

the loose paint from the surface.

  •   Keep the spray nozzle a safe distance from the  

surface you plan to clean. High pressure wash a 

small area, then check the surface for damage. If 

no damage is found, continue to pressure wash-
ing.

       CAUTION - Never use:

  •   Bleach,  chlorine  products  and  other  corrosive 

chemicals

  •   Liquids  containing  solvents  (i.e.,  paint  thinner, 

gasoline, oils)

  •   Tri-sodium phosphate products
  •   Ammonia products
  •   Acid-based products
These chemicals will harm the machine and will dam-
age the surface being cleaned.

rINSING

It will take a few seconds for the detergent to clear.  
Apply safety latch to spray gun. Remove  black soap 
nozzle from the quick coupler. Select and install the 
desired high pressure nozzle. 

Note: You can also stop 

detergent from flowing by simply removing detergent 
siphon tube from bottle.

WARNING

deterGeNt ANd GeNerAl CleANING teCHNIqUeS

Soap Nozzle

detergent 

Injector

discharge 

Nipple

Strainer

quick 

Coupler

High 

pressure 

Hose

Summary of Contents for Xpert-HD 3.8/35p

Page 1: ...your local K rcher Shark Commercial Pressure Washer Dealer nearest you visit www karchercommercial com or www karchershark com 8 780 016 0 model Order Xpert HD 3 8 35p DD 383537 1 107 108 0 OPERATOR...

Page 2: ...cord both serial number and date of purchase and keep in a safe place for future reference 8 780 016 0 Xpert HD DD Rev 10 09 Important Safety Information 4 6 Component Identification 7 Assembly Instru...

Page 3: ...RAY AWAY FROM ELECTRICAL WIRING WARNING Keepwand hose and water spray away from electric wiring or fatal electric shock may result 4 All installations must comply with local codes Contact your electri...

Page 4: ...engines on mobile or portable equipment shall be refueled a outdoors b with the engine on the equipment stopped c with no source of ignition within 10 feet of the dispensing point and d with an allow...

Page 5: ...y cause dam age to the pump 24 Protect discharge hose from vehicle traffic and sharp objects Inspect condition of high pressure hose before using or bodily injury may result 25 Before disconnecting di...

Page 6: ...onnected to the spray gun High Pressure Hose Connect one end to water pump discharge nipple and the other end to spray gun Pump Protector Cycles fresh cool water through pump when recirculating water...

Page 7: ...ntil secure STEP 7 Attach wand to spray gun wand Tighten both STEP 8 Pull spring loaded collar of the wand coupler back to insert your choice of pressure nozzle STEP 11 Connect garden hose to the cold...

Page 8: ...require maintenance At temping to check oil on this pump may damage it and will void your pump warranty STEP 4 Connect garden hose to the cold water source and turn water on completely Never use hot...

Page 9: ...throttle to fast position CAUTION Small engines may kick back Do not hold pull starter grip tightly in hand operating instructionS WARNING Never replace nozzles without engaging the safety latch on t...

Page 10: ...e cleaning surface with fresh water Place de tergent suction tube directly into cleaning solution and apply to surface at low pressure for best results limit your work area to sections approximately 6...

Page 11: ...pressure washer is not being operated or is being stored for more than one month follow these instructions 1 Replenish engine oil to upper level 2 Drain gasoline from fuel tank fuel line fuel valve a...

Page 12: ...r inlet hose leaking Check that all hoses and fittings are airtight Turn off machine and trigger spray gun until a steady flow of water emerges through the nozzle Insufficient water supply Turn water...

Page 13: ...den hose NO DETERGENT Detergent suction tube not properly connected to machine Check connection Detergent is too thick Dilute detergent For best results use manufacturers detergent Detergent filter va...

Page 14: ...Every 6 months Replace Quick Connects O Rings Annually As needed Clean Water Screen Filter Weekly Replace HP Hose Annually if there are any signs of wear PREVENTATIVE MAINTENANCE This pressure washer...

Page 15: ...021 0 Hose 3 8 X 50 1 Wire Tuff Skin Xpert HD and DD Models 1 2 8 750 247 0 Gun M407 1 3 8 783 040 0 Wand 44 With Side Grip 1 4 9 104 030 0 Quick connect nozzle Kit 040 1 s9 802 295 0 Nozzle 0003 Red...

Page 16: ...ANUAL Date Oil Changed Month Day Year Estimated Operating Hours Since Last Oil Change Date Oil Changed Month Day Year Estimated Operating Hours Since Last Oil Change oil change record Check pump oil a...

Page 17: ...t corrosion thermal expansion scale deposits or a contaminated water supply such as water in the unit with chloride content higher than that of 80 mg liter or use of chemicals not approved or recom me...

Page 18: ...www karchercommercial com www karchershark com Form 8 780 016 0 Xpert HD DD Revised 10 09 Printed in U S A or Mexico...

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