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OPERATOR'S MANUAL
HDS NG 4.5/22 Ea St - 1.575-715.0
HDS NG 5.0/30 Eb St - 1.575-717.0
To locate your local Kärcher Commercial Pressure Washer Dealer nearest you,
visit our web page at www.karchercommercial.com
98001600-2
HDS NG 3.5/30 Ea St - 1.575-719.0
HDS NG 5.0/30 Ec ST - 1.575-721.0
®
9.800-160.0
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Table of Contents
Troubleshooting
Related Manuals for Kärcher HDS NG 4.5/22 Ea St - 1.575-715.0
Summary of Contents for Kärcher HDS NG 4.5/22 Ea St - 1.575-715.0
- Page 1 ® OPERATOR’S MANUAL 98001600-2 HDS NG 4.5/22 Ea St - 1.575-715.0 HDS NG 3.5/30 Ea St - 1.575-719.0 HDS NG 5.0/30 Eb St - 1.575-717.0 HDS NG 5.0/30 Ec ST - 1.575-721.0 To locate your local Kärcher Commercial Pressure Washer Dealer nearest you, visit our web page at www.karchercommercial.com...
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Page 2: Table Of Contents
CONTENTS Introduction & Important Safety Information Component Identification Installation Installation Guide 8-11 Check List Before Starting Assembly Instructions Operating Instructions Detergents & General Cleaning Techniques Shut-Down & Cleanup Storage Basic Facts Troubleshooting 17-18 Maintenance & Service 19-20 Preventative Maintenance Schedule & Oil Change Record Exploded Views 22-23 Exploded View Parts List... -
Page 3: Introduction & Important Safety Information
INTRODUCTION & IMPORTANT SAFETY INFORMATION Thank you for purchasing this Pressure Washer. DANGER: Improper connection of the equip- We reserve the right to make changes at any time ment-grounding conductor can result in a risk of without incurring any obligation. electrocution. -
Page 4: Important Safety Information
IMPORTANT SAFETY INFORMATION WARNING: Protect machine from WARNING: This machine exceeds WARNING WARNING freezing. 85 db appropriate ear protection must be worn. 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 PROTECT FROM EAR PROTECTION... - Page 5 IMPORTANT SAFETY INFORMATION 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 disconnect from electrical source and shut off gas valve.
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Page 6: Component Identification
COMPONENT IDENTIFICATION Main Gas Supply Inlet 1/2 psig Spray Wand Power Nozzle Spray Detergent Valve Trigger Pump/ Burner Water Supply Switch Hose (not included) Detergent Bucket (optional) High Pressure Hose Pump — Develops high pressure (not shown). High Pressure Hose — Connect one end to water pump discharge nipple and the other end to spray Pump/Burner Switch—... -
Page 7: Installation
INSTALLATION 9.57" I.D. 11-3/4" High Pressure Out 49-0" 38-3/8" Fresh Water In 1.0" GHF 1-1/4" Gas In 1-1/2" NPT-M 3.0" 44-1/4" 27-1/2" 715-721 • HDS-NG LP • 9.800-160.0 • Rev. 4/10... -
Page 8: Installation Guide
INSTALLATION Gas Piping: Place machine in a convenient location providing ample support, drainage and room for maintenance. Figure 1: DRIP LEG 1/4" Test Port (6" - 14 W.C. Location: or 1/2" PSIG) The location should protect the machine from dam- aging environmental conditions, such as wind, rain and freezing. - Page 9 INSTALLATION From second stage regulator to machine. The following pipe and stack sizes are just recom- mendations. Always consult a local plumber and vent- The following chart is based on incoming gas pressure ing contractor for local codes and regulations during of 11 w.c.i.
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Page 10: Water Source
INSTALLATION Venting: When a room is of unusually tight construction and has a ventilating fan, which may be used for ex- This machine is to be used indoors and requires hausting air outdoors -or has a vented exhaust — it ventilation. -
Page 11: Check List Before Starting
INSTALLATION Gas Pressure: Before turning gas under pressure into piping, all open- ings from which gas can escape should be closed. The ideal incoming gas pressure is 11 water column Immediately after turning on gas, the system should inches or w.c.i. (min. 6 wci, max. 14 wci or 1/2 PSIG). be checked for leaks. -
Page 12: Assembly Instructions
ASSEMBLY INSTRUCTIONS Pressure Discharge Nozzle Fitting Spray Safety Wand Latch Guard High High Pressure Pressure Hose O-Ring Hose 98001600-4 STEP 1: Attach the high pressure STEP 2: Unscrew guard from STEP 3: Connect the high pressure hose to the spray gun using teflon wand. -
Page 13: Operating Instructions
OPERATING INSTRUCTIONS Cold Water Source Garden Hose STEP 1: Review installation instruc- STEP 2: Trigger the spray gun to tions prior to connecting garden eliminate trapped air then wait for a hose to the cold water source and steady flow of water to emerge from turn water on completely. -
Page 14: Detergents & General Cleaning Techniques
DETERGENTS & GENERAL CLEANING TECHNIQUES WARNING: Some detergents engages and cools the pump by discharging the warm WARNING may be harmful if inhaled or in- water onto the ground. This thermal device prevents internal damage to the pump. gested, causing severe nausea, fainting or poisoning. -
Page 15: Shut-Down & Cleanup
SHUTTING DOWN AND CLEAN-UP Pump/Burner Switch STEP 1: Remove detergent suction STEP 2: Turn/push burner switch to "OFF" position. Open spray tube from container and insert into gun allowing water to cool. Then turn/push pump switch to “OFF” one gallon of fresh clean water. Pull position. -
Page 16: Basic Facts
BASIC FACTS Based on 60° Propane Butane 1 Cu. Ft. NG Approx 1,000 BTU Formula C3H8 C4H10 Vaporization Point (°F) -43.7 31.1 Specific Gravity (Vapor) 1.522 2.006 Specific Gravity (Liquid) 0.508 0.584 Lbs. per Gal. (Liquid) 4.23 4.87 BTU per Cu. Ft. (Vapor) 2.563 3.39 BTU per Gal. -
Page 17: Troubleshooting
TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTION NO SPARK - NO PILOT No main power Restore power. Faulty limit switch Test/replace. Faulty wiring Test wiring. SPARK - BUT NO No gas supplied to pilot valve Check for availability of gas. PILOT LIGHT Manual valves in “OFF”... -
Page 18: Troubleshooting
TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTION WATER Incoming water to machine warm or hot Lower incoming water temperature. TEMPERATURE Gas pressure too high See Installation for specifications for proper gas pres- TOO HOT sure. Detergent line sucking air Tighten all clamps. Check detergent lines for holes Defective high limit switch Replace. -
Page 19: Maintenance & Service
Scale Protection: mended. This is done by pouring a 50-50 mix of anti- 1. Fill container with Karcher scale inhibitor fluid freeze and water into the float tank and then siphoning Rm 110 (Order No. 0.500-110.0). -
Page 20: Rupture Disk
MAINTENANCE & SERVICE 4. Replace manifold pressure adjustment screw propane bottle and a low pressure regulator attached cap. to the pressure washer. Figure 5 Propane Cylinder Capacity: Line to An important consideration with propane systems is ON/OFF Pilot the capacity of the supply cylinder relative to the needs Switch Light of the burner. -
Page 21: Preventative Maintenance Schedule & Oil Change Record
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. Attention to regular preventative maintenance procedures will assist in preserving the performance of your equipment. Contact your dealer for maintenance. -
Page 22: Exploded View
EXPLODED VIEW Detergent Valve Burner Assy. For Detail Burner Assy. For Detail Burner Assy. For Detail 98001600-5 715-721 • HDS-NG LP • 9.800-160.0 • Rev. 4/10... - Page 23 EXPLODED VIEW Detail See Float Tank Illus. Detail See Electrical Illus. 715-721 • HDS-NG LP • 9.800-160.0 • Rev. 4/10...
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Page 24: Exploded View Parts List
EXPLODED VIEW PARTS LIST ITEM PART NO. DESCRIPTION 9.802-977.0 Assembly, Frame 9.802-146.0 Swivel, 1/2" MP x 3/4" GHF w/Strainer 9.800-020.0 Label, Cold Water Inlet 9.802-128.0 Nipple, 1/2" JIC x 1/2" 9.802-151.0 Swivel, 1/2" JIC x 1/2", 90° 9.802-260.0 Hose, 5/8" Push-On 29"... - Page 25 EXPLODED VIEW PARTS LIST ITEM PART NO. DESCRIPTION 9.802-987.0 Brace, Panel 9.802-261.0 Hose, 3/4" Push-On 41" 6.339-060.0 Rubber, Buffer, M* 9.802-813.0 Washer, 5/16 Lock Split Ring 9.804-644.0 Nut, 8mm, Hex Motor/Pump Assembly, Please See Specifications Pages and pages 36-41 for Parts Lists 9.802-260.0 Hose, 5/8"...
- Page 26 EXPLODED VIEW PARTS LIST ITEM PART NO. DESCRIPTION 9.800-023.0 Label, 230V, 3PH (717.0) 9.800-024.0 Label, 460V, 3PH (721.0) 9.800-025.0 Label, 230V, 1PH (715.0, 719.0) 9.196--012.0 Screw, 10/24 x 1/4" 8.750-094.0 Thermostat 302°F 715-721 • HDS-NG LP • 9.800-160.0 • Rev. 4/10...
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Page 27: Control Panel Parts List
CONTROL PANEL EXPLODED VIEW 16 - To Pump CONTROL PANEL PARTS LIST ITEM PART NO. DESCRIPTION 8.750-094.0 Thermostat, Adjustable 302°F 6.631-197.0 Switch 6.421-170.0 Pressure Gauge, 0-315 Bar, 4700 4.580-064.0 Valve, Chemical 9.803-650.0 Light, Indicator, Blue, 28V 9.803-651.0 Lamp, Indicator, Red, 28V 9.803-652.0 Light, Indicator, Green, 28V 6.313-014.0... - Page 28 BURNER ASSEMBLY 98001600-1 715-721 • HDS-NG LP • 9.800-160.0 • Rev. 4/10...
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Page 29: Burner Assembly Parts List
BURNER ASSEMBLY PARTS LIST ITEM PART NO. DESCRIPTION 8.710-216.0 Jet, Orifice, #54 (Natural Gas, 3.5-4 gpm) 8.717-377.0 Jet, Orifice, #63 (Propane - Fired Units Only) 8.710-215.0 Jet, Orifice, #52 (Natural Gas, 4.5-5 gpm) 8.718.055.0 Burner Ring Assy, X44 w/ #54 Jets (Natural Gas, 3.5-4 gpm) 8.718-060.0 Burner Ring Assy, X44 w/ #63 Jets (Propane- Fired Units Only) 8.725-894.0... - Page 30 ELECTRICAL BOX EXPLODED VIEW Please See Specifications Pages 32-33 Please See Specifications Pages 32-33 715-721 • HDS-NG LP • 9.800-160.0 • Rev. 4/10...
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Page 31: Electrical Box Parts List
ELECTRICAL BOX PARTS LIST ITEM PART NO. DESCRIPTION 9.802-970.0 Panel, Electrical Box Side 9.802-969.0 Box, Electrical 9.802-759.0 Screw, 10/32" x 1/2" BHSOC Black (715.0, 719.0) (717.0, 721.0) 9.802-791.0 Nut, 10/32" x 1/2" Cage, BHSOC 9.802-520.0 Strain Relief, 3/4" 9.800-040.0 Label, Ground 9.803-613.0 Control, Electronic Ignition 9.802-695.0... -
Page 32: Float Tank Assembly & Parts List
FLOAT TANK ASSEMBLY FLOAT TANK PARTS LIST ITEM PART NO. DESCRIPTION 3.593-054.0 Tank, Float w/Valve 4.070-094.0 Tank, Scale Inhibitor 4.730-071.0 Filter, Water, Complete 5.063-226.0 Lid, Scale Inhibitor 5.310-062.0 Nut, Float Tank 5.443-285.0 Hose Stem, 45° 6.685-845.0 Valve, Solenoid 6.362-078.0 O-Ring 5.332-001.0 Spring, Scale Inhibitor 9.802-201.0... -
Page 33: Hose & Spray Gun Parts List
HOSE & SPRAY GUN ASSEMBLY HOSE & SPRAY GUN PARTS LIST ITEM PART NO. DESCRIPTION 6.389-709.0 Hose, ID8, 50', 5800 PSI 1311 F1 Swvlend 2-M22 x 1 2.800-292.0 s Spare part set, O-rings, 2 Swivel ends, 3 standard 4.775-466.0 Easy Press Trigger Gun, 22mm 4.760-550.0 Lance, Spray, Insulated,1050mm Nozzles, Please See Specifications Pages... -
Page 34: Specifications
SPECIFICATIONS PUMP MOTOR CONTROLS Model Motor/ Voltage/ Nozzle Nozzle Motor Block Pump# Hertz Size Part # Contactor Contact 1.575-715.0 3.530-644.0 220/1 06 (1) 2.883-402.0 8.724-283.0 8.724-361.0 1.575-717.0 3.530-646.0 220/3 06 (1) 2.883-402.0 8.724-280.0 8.724-361.0 1.575-719.0 3.530-645.0 220/1 04 (1) 2.883-397.0 8.724-283.0 8.724-361.0 1.575-721.0... -
Page 35: Specifications
SPECIFICATIONS MOTOR CONTROLS CONTROLS Motor Capacitors Transformer Primary Part# Secondary Part # Model Overload Fuse Fuse 715.0 8.724-306.0 6.661-085.0, 6.661-181.0 9.803-662.0 2 Amp 9.803-663.0 5 Amp 9.803-664.0 717.0 8.724-305.0 9.803-662.0 2 Amp 9.803-663.0 5 Amp 9.803-664.0 719.0 8.724-306.0 6.661-085.0, 6.661-181.0 9.803-662.0 2 Amp 9.803-663.0... -
Page 36: Cylinder Head Exploded View And Parts List
CYLINDER HEAD ALL MODELS EXPLODED VIEW CYLINDER HEAD ALL MODELS EXPLODED VIEW PARTS LIST ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 5.582-121.0 Valve Disc 5.402-705.0 Joining Piece 5.404-082.0 Hollow Screw 5.367-030.0 Diaphragm 5.332-444.0 Helical Spring (717.0, 719.0, 5.034-494.0 Strap 721.0) 5.411-148.0 Screw Plug... - Page 37 CYLINDER HEAD ALL MODELS EXPLODED VIEW PARTS LIST ITEM PART NO. DESCRIPTION 5.587-202.0 Valve Housing 6.362-077.0 O-Ring Seal 10 x 2.2 NBR 70 4.580-349.0 Valve Complete Chemistry 4.580-589.0 Valve w/Slot 5.443-474.0 Hose Stem 7.306-155.0 Cylinder Head Screw M12 x 100 8.8 A3E IS 5.110-853.0 Sleeve...
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Page 38: Piston And Seals Exploded Views And Parts Lists
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) PISTON AND SEALS EXPLODED VIEW PARTS LIST ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 4.553-248.0 Piston, Complete (719.0) 6.365-525.0 Grooved Ring 4.553-251.0 Piston, Complete (715.0) 5-115-537.0 Washer 6.472-331.0... - Page 39 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 ITEM PART NO. DESCRIPTION 4.553-283.0 Piston, Complete, 5.115-521.0 Washer Replacement Only 6.362-092.0 O-Ring Seal 36.0 x 2.0 NBR 70 3 6.343.142.0 Snap Ring WR 22 6.365-055.0...
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Page 40: Motor Breakdowns Exploded Views And Parts Lists
MOTOR BREAKDOWN EXPLODED VIEW HDS 4.5/22 Ea St (1.575-715.0) HDS 3.5/30 Ea St (1.575-719.0) MOTOR BREAKDOWN EXPLODED VIEW PARTS LIST ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 4.623-757.0 Motor, Complete (715.0) 6.401-225.0 Taper Roller Bearing 41 4.623-789.0 Motor, Complete, Replacement 7.367.009.0 Radial Shaft Seal Ring Only (719.0) - Page 41 MOTOR BREAKDOWN EXPLODED VIEW HDS 5.0/30 Eb St (1.575-717.0) HDS 5.0/30 Ec St (1.575-721.0) MOTOR BREAKDOWN EXPLODED VIEW PARTS LIST ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 4.623-778.0 Motor, Complete (717.0) 6.401-225.0 Taper Roller Bearing 41 4.623-885.0 Motor, Complete, Replacement 7.367-009.0 Radial Shaft Seal Ring, Only (721.0)
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Page 42: High Pressure Switch Exploded View And Parts List
High pressur.../Electric motor/HDS 4.0/20 4.../2.0 Pump set/2.3 Switch Page 1 of 1 HIGH PRESSURE SWITCH EXPLODED VIEW All Models High pressur.../Electric motor/HDS 4.0/20 4.../2.0 Pump set/2.3 Switch High pressur.../Electric motor/HDS 4.0/20 4.../2.0 Pump set/2.3 Switch High pressur.../Electric motor/HDS 4.0/20 4.../2.0 Pump set/2.3 Switch High pressur.../Electric motor/HDS 4.0/20 4.../2.0 Pump set/2.3 Switch ... - Page 43 LIMITED NEW PRODUCT Phone: 360-833-1600 ® WARRANTY—COMMERCIAL fax: 800-248-8409 PRESSURE WASHERS www.karchercommercial.com 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 Limited Warranty, subject to the exclusions shown below, is calculated from the date of the original purchase, and applies to the original components only.
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Page 44: 715-721 • Hds-Ng Lp • 9.800-160.0 • Rev
® 715-721 • HDS-NG LP • 9.800-160.0 • Revised 4/10 • Printed in U.S.A.