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  5. Operator's Manual

Karcher HDS NG 3.5/30 Ea St - 1.575-719.0 Operator's Manual

Summary of HDS NG 3.5/30 Ea St - 1.575-719.0

  • Page 1

    9.800-160.0 hds ng 4.5/22 ea st - 1.575-715.0 hds ng 5.0/30 eb st - 1.575-717.0 operator’s manual to locate your local kärcher commercial pressure washer dealer nearest you, visit our web page at www.Karchercommercial.Com hds ng 3.5/30 ea st - 1.575-719.0 hds ng 5.0/30 ec st - 1.575-721.0 98001600-2...

  • Page 2: Contents

    Contents 2 model number ______________________________ serial number ______________________________ date of purchase ____________________________ the model and serial numbers will be found on a decal attached to the pressure washer. You should record both serial number and date of purchase and keep ...

  • Page 3: Important Safety

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 3 pressure washer operator’s manual introduction & important safety information thank you for purchasing this pressure washer. We reserve the right to make changes at any time without incurring any obligation. Owner/user responsibility: the owner and/or ...

  • Page 4: Important Safety Information

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 operator’s manual pressure washer 4 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 ...

  • Page 5: Important Safety Information

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 5 pressure washer operator’s manual 23. Never expose a spark or flame where there may be unburned gas present. 24. Install the machine 18” above the floor and about 2 feet from wall providing adequate ventilation and space. 25. When making repairs discon...

  • Page 6: Component Identification

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 operator’s manual pressure washer 6 component identification pump — develops high pressure (not shown). Pump/burner switch— controls operation on machine. Spray gun — controls the application of water and detergent onto cleaning surface with trigger devi...

  • Page 7: Installation

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 7 pressure washer operator’s manual installation 9.57" i.D. 49-0" 38-3/8" high pressure out 11-3/4" 27-1/2" 44-1/4" gas in 1-1/2" npt-m 3.0" fresh water in 1.0" ghf 1-1/4".

  • Page 8: Installation

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 operator’s manual pressure washer 8 installation place machine in a convenient location providing ample support, drainage and room for maintenance. Location: the location should protect the machine from dam- aging environmental conditions, such as wind, ...

  • Page 9: Installation

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 9 pressure washer operator’s manual installation the following pipe and stack sizes are just recom- mendations. Always consult a local plumber and vent- ing contractor for local codes and regulations during installation. The following tables are maximum ...

  • Page 10: Installation

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 operator’s manual pressure washer 10 installation venting: this machine is to be used indoors and requires ventilation. When venting the machine, if the machine is to be in an enclosed area with a vent pipe, be sure it is the same size as the stack on th...

  • Page 11: Installation

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 11 pressure washer operator’s manual installation before turning gas under pressure into piping, all open- ings from which gas can escape should be closed. Immediately after turning on gas, the system should be checked for leaks. This can be done by watc...

  • Page 12: Assembly Instructions

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 operator’s manual pressure washer 12 98001600-4 assembly instructions step 1: attach the high pressure hose to the spray gun using teflon tape on hose threads. Step 2: unscrew guard from wand. Place pressure nozzle and o-ring as shown. Screw guard over n...

  • Page 13: Operating Instructions

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 13 pressure washer operator’s manual operating instructions step 1: review installation instruc- tions prior to connecting garden hose to the cold water source and turn water on completely. Never use hot water. Step 2: trigger the spray gun to eliminate ...

  • Page 14: Thermal Pump

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 operator’s manual pressure washer 14 warning: some detergents may be harmful if inhaled or in- gested, causing severe nausea, fainting or poisoning. The harm- ful elements may cause property damage or severe injury. Step 1: use detergent designed specifi...

  • Page 15: Shutting Down and Clean-Up

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 15 pressure washer operator’s manual shutting down and clean-up storage caution: always store your pressure washer in a location where the temperature will not fall below 32°f (0°c). The pump in this machine is susceptible to permanent damage if frozen. ...

  • Page 16: Basic Facts

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 operator’s manual pressure washer 16 basic facts pressure equivalents simply stated, pressure is the force exerted by a gas or liquid attempting to escape from a container. It is useful to know how strong this “attempt to escape” is. Pressure can be meas...

  • Page 17: Troubleshooting

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 17 pressure washer troubleshooting guide troubleshooting problem possible cause solution no spark - no pilot gas no main power restore power. Faulty limit switch test/replace. Faulty wiring test wiring. Spark - but no pilot light no gas supplied to pilot...

  • Page 18: Troubleshooting

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 pressure washer troubleshooting guide 18 troubleshooting problem possible cause solution water temperature too hot incoming water to machine warm or hot lower incoming water temperature. Gas pressure too high see installation for specifications for prope...

  • Page 19: Heating Coils

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 19 pressure washer operator’s manual spray nozzles: each machine is equipped with one or more spray nozzles, depending on the model. Different spray noz- zles are calibrated for each machine, depending on the flow and pressure of that particular model. S...

  • Page 20: Maintenance & Service

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 operator’s manual pressure washer 20 maintenance & service 4. Replace manifold pressure adjustment screw cap. Figure 5 pilot burner adjustment: 1. Remove pilot adjustment cap. 2. Adjust pilot key to provide properly sized flame. 3. Replace pilot adjustme...

  • Page 21: Preventative Maintenance

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 21 pressure washer operator’s manual preventative maintenance this pressure washer was produced with the best available materials and quality craftsmanship. However, you as the owner have certain responsibilities for the correct care of the equipment. At...

  • Page 22: Exploded View

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 operator’s manual pressure washer 22 98001600-5 exploded view 15 31 14 13 12 24 22 21 17 18 26 to detergent valve 80 35 36 73 36 34 37 38 33 32 25 see burner assy. For detail see burner assy. For detail 27 28 29 11 10 9 39 see burner assy. For detail 80 ...

  • Page 23: Exploded View

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 23 pressure washer operator’s manual exploded view 55 for detail see float tank illus. 66 52 56 52 68 67 54 48 50 49 47 67 46 51 57 11 10 65 for detail see electrical illus. 50 49 41 43 44 45 11 62 62 61 58 63 78 60 59 64 77 76 79 40 40 80 69 49 53 16 41...

  • Page 24: Exploded View Parts List

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 operator’s manual pressure washer 24 exploded view parts list item part no. Description qty 1 9.802-977.0 assembly, frame 1 2 9.802-146.0 swivel, 1/2" mp x 3/4" ghf w/strainer 1 3 9.800-020.0 label, cold water inlet 1 4 9.802-128.0 nipple, 1/2" jic x 1/2...

  • Page 25: Exploded View Parts List

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 25 pressure washer operator’s manual exploded view parts list item part no. Description qty 46 9.802-987.0 brace, panel 1 47 9.802-261.0 hose, 3/4" push-on 41" 48 6.339-060.0 rubber, buffer, m* 4 49 9.802-813.0 washer, 5/16 lock split ring 9 50 9.804-644...

  • Page 26: Exploded View Parts List

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 operator’s manual pressure washer 26 exploded view parts list item part no. Description qty 90 9.800-023.0 label, 230v, 3ph (717.0) 1 9.800-024.0 label, 460v, 3ph (721.0) 1 9.800-025.0 label, 230v, 1ph (715.0, 719.0) 1 91 9.196--012.0 screw, 10/24 x 1/4"...

  • Page 27: Control Panel Parts List

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 27 pressure washer operator’s manual control panel parts list item part no. Description qty 1 8.750-094.0 thermostat, adjustable 302°f 1 2 6.631-197.0 switch 1 3 6.421-170.0 pressure gauge, 0-315 bar, 4700 1 4 4.580-064.0 valve, chemical 1 5 9.803-650.0 ...

  • Page 28: Burner Assembly

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 operator’s manual pressure washer 28 98001600-1 burner assembly 19 28 5 4 14 15 23 27 13 9 10 10 11 9 12 5 7 38 37 38 8 3 5 5 6 1 2 16 17 7 18 31 29 22 20 30 33 21 34 24 35 36 25 26 15 32.

  • Page 29: Burner Assembly Parts List

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 29 pressure washer operator’s manual burner assembly parts list item part no. Description qty 1 8.710-216.0 jet, orifice, #54 (natural gas, 3.5-4 gpm) 44 8.717-377.0 jet, orifice, #63 (propane - fired units only) 44 8.710-215.0 jet, orifice, #52 (natural...

  • Page 30: Electrical Box Exploded View

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 operator’s manual pressure washer 30 3 1 5 9 8 11 14 18 3 12 13 15 17 please see specifications pages 32-33 3 2 9 6 7 10 4 3 8 please see specifications pages 32-33 electrical box exploded view 9 10 8 20 19 16.

  • Page 31: Electrical Box Parts List

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 31 pressure washer operator’s manual item part no. Description qty 1 9.802-970.0 panel, electrical box side 1 2 9.802-969.0 box, electrical 1 3 9.802-759.0 screw, 10/32" x 1/2" bhsoc black (715.0, 719.0) 13 (717.0, 721.0) 8 4 9.802-791.0 nut, 10/32" x 1/...

  • Page 32: Float Tank Assembly

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 operator’s manual pressure washer 32 item part no. Description qty 1 3.593-054.0 tank, float w/valve 1 2 4.070-094.0 tank, scale inhibitor 1 3 4.730-071.0 filter, water, complete 1 4 5.063-226.0 lid, scale inhibitor 1 5 5.310-062.0 nut, float tank 1 6 5....

  • Page 33: Hose & Spray Gun Assembly

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 33 pressure washer operator’s manual hose & spray gun assembly item part no. Description qty 1 6.389-709.0 hose, id8, 50', 5800 psi 1311 f1 swvlend 2-m22 x 1 1 2.800-292.0 s spare part set, o-rings, 2 swivel ends, 3 standard 2 4.775-466.0 easy press trig...

  • Page 34: Specifications

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 pressure washer specifications 34 specifications pump motor controls model motor/ hp voltage/ nozzle nozzle motor block motor capacitors transformer primary part# secondary part # pump# hertz size part # contactor contact model overload fuse fuse 1.575-7...

  • Page 35: Specifications

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 35 pressure washer specifications specifications controls motor controls model motor/ hp voltage/ nozzle nozzle motor block motor capacitors transformer primary part# secondary part # pump# hertz size part # contactor contact model overload fuse fuse 1.5...

  • Page 36

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 operator’s manual pressure washer 36 cylinder head all models exploded view item part no. Description qty 1 5.402-705.0 joining piece 1 2 5.367-030.0 diaphragm 2 3 5.034-494.0 strap 2 4 5.411-148.0 screw plug 2 5 5.332-268.0 helical spring 2 6 5.583-161....

  • Page 37

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 37 pressure washer operator’s manual item part no. Description qty 40 5.587-202.0 valve housing 1 41 6.362-077.0 o-ring seal 10 x 2.2 nbr 70 1 42 4.580-349.0 valve complete chemistry 1 43 4.580-589.0 valve w/slot 1 44 5.443-474.0 hose stem 1 45 7.306-155...

  • Page 38

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 operator’s manual pressure washer 38 piston and seals exploded view hds 4.5/22 ea st (1.575-715.0) hds 3.5/30 ea st (1.575-719.0) item part no. Description qty 1 4.553-248.0 piston, complete (719.0) 1 4.553-251.0 piston, complete (715.0) 1 2 6.472-331.0 ...

  • Page 39

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 39 pressure washer operator’s manual piston and seals exploded view hds 5.0/30 eb st (1.575-717.0) hds 5.0/30 ec st (1.575-721.0) piston and seals exploded view parts list item part no. Description qty 1 4.553-283.0 piston, complete, replacement only 3 2...

  • Page 40

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 operator’s manual pressure washer 40 motor breakdown exploded view motor breakdown exploded view parts list item part no. Description qty 0 4.623-757.0 motor, complete (715.0) 1 4.623-789.0 motor, complete, replacement only (719.0) 1 1 7.303-048.0 screw ...

  • Page 41

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 41 pressure washer operator’s manual motor breakdown exploded view motor breakdown exploded view parts list item part no. Description qty 0 4.623-778.0 motor, complete (717.0) 1 4.623-885.0 motor, complete, replacement only (721.0) 1 1 7.303-048.0 screw,...

  • Page 42

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 operator’s manual pressure washer 42 high pressure switch exploded view high pressure switch exploded view parts list item part no. Description qty 0 4.744-205.0 switch, complete 1 2 5.042-860.0 holder 1 3 5.332-322-0 spring 1 4 5.053-051.0 bracket 1 5 6...

  • Page 43

    715-721 • hds-ng lp • 9.800-160.0 • rev. 4/10 pressure washer warranty what this warranty covers all kärcher commercial pressure washers are warranted by kärcher to the original purchaser to be free from defects in materials and workmanship under normal use, for the periods specified below. This lim...

  • Page 44

    715-721 • hds-ng lp • 9.800-160.0 • revised 4/10 • printed in u.S.A. ®.