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 9.801-509.0 - C  •  Karcher Operator's Manual

5

  

PRESSURE W

ASHER

  

MAN 

AL

  

IMPORTANT SAFETY INFORMATION

WARNING

USE PROTECTIVE 

EYE WEAR

AND CLOTHING 

WHEN OPERATING

THIS EQUIPMENT.

WARNING: High pressure spray 

can cause paint chips or other 
particles to become airborne 
and fl y at high speeds. To avoid 
personal injury, eye, hand and 
foot safety devices must be 
worn.

  9.   Eye, hand, and foot protec-

tion must be worn when 
using this equipment.

WARNING

EAR PROTECTION 

MUST BE WORN

WARNING: This machine ex-

ceeds 85 db appropriate ear 
protection must be worn.

WARNING

RISK OF INJURY. 

HOT SURFACES 

CAN CAUSE BURNS

WARNING: Risk of injury. Hot 

surfaces can cause burns. Use 
only designated gripping areas 
of spray gun and wand. Do not 
place hands or feet on non-in-
sulated areas of the pressure 
washer.

 

 10.  To reduce risk of injury, close supervision is neces-

sary when a machine is used near children. Do not 
allow children to operate pressure washer. 

This 

machine must be attended during operation.

 

TRIGGER GUN KICKS 

BACK - HOLD WITH 

BOTH HANDS

WARNING

WARNING: Grip cleaning wand 

securely with both hands be-
fore starting. Failure to do this 
could result in injury from a 
whipping wand.

11.   Never make adjustments on 

machine while in operation.

12.  Be certain all quick coupler 

fi ttings are secured before 
using pressure washer.

RISK OF INJECTION 
OR SEVERE INJURY 

TO PERSONS. KEEP 

CLEAR OF NOZZLE.

WARNING

WARNING: High pressure de-

veloped by these machines will 
cause personal injury or equip-
ment damage. Keep clear of 
nozzle. Use caution when op-
erating. Do not direct discharge 
stream at people, or severe 
injury or death will result. 

 

WARNING

PROTECT FROM 

FREEZING

WARNING: Protect machine 

from freezing.

13.  To keep machine in best 
 

operating conditions, it is 

 

important you protect machine 

 

from freezing. Failure to protect 

 

m a c h i n e   f r o m   f r e e z i n g 

 

could cause malfunction of the 

 

machine and result in death, 

serious bodily injury, and/or property damage. Fol-
low storage instructions specifi ed in this manual.

 

WARNING

RISK OF

ASPHYXIATION. USE 

THIS PRODUCT ONLY 

IN A WELL

VENTILATED AREA.

WARNING: Risk of asphyxiation. 

Use this product only in a well 
ventilated area. 

 14.  Avoid installing machines in 

small areas or near exhaust 
fans. Adequate oxygen is 
needed for combustion or 
dangerous carbon monoxide 
will result.

 15. Manufacturer will not be liable for any changes 

made to our standard machines or any compo-
nents not purchased from us.

 16.  The best insurance against an accident is precau-

tion and knowledge of the machine.

WARNING

RISK OF INJURY 

FROM FALLS WHEN 

USING LADDER.

WARNING: Be extremely careful 

when using a ladder, scaffold-
ing or any other relatively un-
stable location. The cleaning 
area should have adequate 
slopes and drainage to reduce 
the possibility of a fall due to 
slippery surfaces.

 

 17. Do not overreach or stand on unstable support. 

Keep good footing and balance at all times.

 18. Do not operate this machine when fatigued or 

under the infl uence of alcohol, prescription medi-
cations,  or drugs.

19.   Follow the maintenance instructions specifi ed in 

the manual.

WARNING: Use vapor fuel only.

20.   The LP models are designed to run on vapor pro-

pane fuel. Do not use liquid fuel. Have a qualifi ed 
serviceman install and service your equipment.

 21.  Never expose a spark or fl ame where there may 

be unburned gas present.

Summary of Contents for HDS3.5/20

Page 1: ...DES LUN ETTE S DE SEC URIT E DOIV ENT ETR E POR TEES lorsq ue vous oper ez cet appa reil RISK OF ASP HYX IATI ON Use only in well vent i lated area RIES GO DE ASF IXIA Use el prod ucto en un area de...

Page 2: ...is on it means the overload is tripped Reset overload Pilot Light When the light is on it means there is power to the pilot control If there is no light see troubleshooting guide Voltage When the lig...

Page 3: ...9 30 5 0 23 4 8 30 8 Installation HDS 6 3 32 8 0 32 9 5 30 19 Installation 10 16 Assembly Instructions 17 Operating Instructions 18 Applying Detergent General Washing Techniques 19 Shutting Down Clea...

Page 4: ...ly familiar with the controls 3 Stay alert watch what you are doing 4 Use only your hand to push in or turn the gas control knob Never use a tool If the knob will not push in or turn by hand don t try...

Page 5: ...discharge stream at people or severe injury or death will result WARNING PROTECT FROM FREEZING WARNING Protect machine from freezing 13 To keep machine in best operating conditions it is importantyou...

Page 6: ...WARNING If connection is made to potable water supply a back flow device must be provided 27 Exhaust gases should not be vented into a wall a ceiling or a concealed space of a building A draft diverte...

Page 7: ...DOR ES CAL IFIC ADO S LIRE LE MAN UEL DE L OP ERA TEU R AVA NT UTIL ISAT ION CET APP ARE IL DOIT ETR E UTIL ISE PAR DES OPE RA TEU RS QUA LIFIE S RIS K OF INJU RY PRO TEC TIVE EYE WEA R AND CLO THIN G...

Page 8: ...9 50 Dia Customer Supplied Draft Diverter 24 00 24 87 4 00 High Pressure Out 22mm Screw Connection 48 54 36 68 24 50 24 00 12 00 49 00 Water In 3 4 GHF 21 30 20 61 20 61 Exhaust Out 10 Dia NOTE Draft...

Page 9: ...side Floor Mounting Dimensions 19 50 Dia Customer Supplied Draft Diverter Control Panel 61 00 17 33 34 79 17 36 26 18 3 64 High Pressure Out 22mm Screw Connection 31 77 64 00 26 91 26 91 Water In 3 4...

Page 10: ...s recommended that a partition be made be tween the wash area and machine to prevent direct spray from the spray gun from coming in contact with the machine Excess moisture reaching the power unit or...

Page 11: ...roved by the Uniform Building Code Vents penetrating ceilings or walls should be double wall approved appliance vents and should be one to INSTALLATION LP Gas Liquid petroleum gas or propane LP gas is...

Page 12: ...e roof power venting is recommended to help eliminate exhaust restriction of this natural draft machine This draft inducer power vent must be installed by a li censed contractor who can calculate size...

Page 13: ...fluenced by the heat created inside the coil the design of the coil and flue and the length and diameter of the exhaust stack The table below shows data included in the operator s manual for flue and...

Page 14: ...is 4 2 wc in For an installation at 3500 feet reduce this pressure by 16 by setting the manifold pressure to 4 2 84 3 5 wc in This adjustment should only be made by a properly trained service technici...

Page 15: ...ollow instructions carefully when installing or servicing machine Failure to do so may result in damage to property or personal injury 1 Installation or servicing of gas appliances and controls must o...

Page 16: ...y for the BTU rating of the burner Is incoming gas supply pressure between 6 14 water column inches or 1 2 PSIG Has the proper gas regulator been installed for pressure and volume Have you installed t...

Page 17: ...will result Safety Latch Spray Gun High Pressure Hose 98015080 7 STEP 3 Connect garden hose to the cold water source Cold Water Source Garden Hose 98015080 10 STEP 6 Attach the Power Nozzle to end of...

Page 18: ...rgent Valve STEP 4 To apply detergent open the detergent valve counterclock wise making sure that the deter gent pick up tube is in the detergent solution and not sucking air 98016360 17 NOTE High pre...

Page 19: ...his thermal device prevents internal damage to the pump CLEANING TIPS Pre rinse cleaning surface with fresh water Place detergent suction tube directly into cleaning solu tion and apply to surface For...

Page 20: ...du syst me F Coupez l eau W ARNIN G PRE CAU CION AVE RTIS SEM ENT SK AL E NE BY ORS LEA EL MANUA L OPERA CION ANTES DE USARS E ESTE EQUIPO DEBE SER USADO SOLAM ENTE POR OPERA DORES CALIFIC ADOS LIRE L...

Page 21: ...ugging metering valve Disassemble and clean thoroughly High viscosity of detergent Dilute detergent to specifications Restriction behind float tank screen removed Install restriction Hole in detergent...

Page 22: ...all repair kit when needed Worn packing in pump Install new packing kit Fouled or dirty inlet or discharge valves in pump Clean inlet and discharge valve Worn inlet or discharge valves Replace with va...

Page 23: ...scale 1 Be sure main gas valve gas cock or selector arm is turned on 2 With gas on and system sparking probe terminals PV and 24V GND If pilot gas does not flow with 24 volts at these terminals repla...

Page 24: ...switch on With the pilot burning and the flame on the ignitor sensor rod the main burner should turn on If it does not replace the ignition control unit SHORT CYCLING OF MAIN BURNER MAIN BURNER TURNS...

Page 25: ...ump needs repairing CAUTION When using this procedure to test components keep the spray gun open at all times High Limit Hot Water Thermostat For safety each machine is equipped with a high limit cont...

Page 26: ...installed between pro pane bottle and gas valve Propane Cylinder Capacity An important consideration with propane systems is the capacity of the supply cylinder relative to the needs of the burner The...

Page 27: ...through the coil by whatever means are available for the particular system the water heater is used on To Adjust Pressure Regulator Adjustment of the pressure regulator is not normally necessary since...

Page 28: ...Lbs per Gal Liquid 4 23 4 87 BTU per Cu Ft Vapor 2 563 3 39 BTU per Gal Liquid 91 547 102 032 BTU per Lb Liquid 21 591 21 221 Cu Ft per Lb Liquid 8 607 6 53 Cu Ft per Gal Liquid 36 45 31 8 Octane Numb...

Page 29: ...essure gauge At the lower levels it is expressed in water column inches i e 11 w c i Higher pressures are expressed in terms of the force exerted against a square inch of area for example 125 lbs per...

Page 30: ...e life of your pressure washer Perform maintenance more often under severe conditions MAINTENANCE SCHEDULE Replace Fuel Lines Annually Pump Oil Inspect Daily inspect the oil level Change After first 5...

Page 31: ......

Page 32: ...HDS 9 801 509 0 Printed in U S A...

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