Table of Contents
Related Manuals for Kärcher HD 20/15-4
Summary of Contents for Kärcher HD 20/15-4
- Page 1 HD 25/15-4, HD 20/15-4, HD 16/15-4 Service Manual English 5.906-494.0 Rev. 01 (04/11)
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Page 2: Table Of Contents
4.3 Pump Detail (HD 25/15-4) ........4.4 Pump Detail (HD 20/15-4 und HD 16/15-4)...... - Page 3 10.2 HD 20/15-4 ........
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Page 4: Preface
High pressure hose, NW 12 15 m (HD 25/15-4 – and HD 20/15-4) High pressure hose NW 10 15 m (HD 16/15-4) – Gun EasyPress (HD 16/15-4) – Gun 300 bar (HD 20/15-4 and HD 25/15-4) – English 5.906-494.0 Rev. 01 (04/11) -
Page 5: Attachment Sets
3.7 Attachment sets 4.1 Type and information plates The type and information plates are located: Attachment kit Order number on the pump casing (pump specifications) in the accessories compartment (tyre pressure, Swivel casters 2.851-042.0 nozzle size and oil types used) Hose drum 2.440-002.0 ... -
Page 6: Pump Detail (Hd 25/15-4)
5 Overflow casing, pressure regulation 11 Pump head fastening screws 6 Oil tank 12 Valve screws, suction side 4.4 Pump Detail (HD 20/15-4 und HD 16/15-4) 1 Oil drain screw 9 Overflow casing, pressure regulation 2 Oil sight glass 10 Water inlet... -
Page 7: Front View
4.5 Front view 1 Water filter 4 Oil sight glass 2 Water inlet 5 High-pressure outlet 3 Oil drain screw 6 Accessory compartment 4.6 Rear view 1 Indicator lamp 3 Intake for hourmeter (option) 2 Power switch English 5.906-494.0 Rev. 01 (04/11) -
Page 8: View From The Inside
4.7 View from the inside 1 Lock detent 2 Accessory compartment 3 Information sign 4 Hinge, storage compartment 5 Cover 6 Lock pin 7 Type plate, appliance English 5.906-494.0 Rev. 01 (04/11) -
Page 9: Basic Settings And Service Procedures
Basic settings and service procedures Service work on the appliance may only be per- 5.3 Removal of the crankshaft pump formed by the authorized customer service. If so in- Drain the oil in a collection basin. structed in the operating instructions, the special tools indicated by KÄRCHER must be used. - Page 10 Let the high pressure pump tilt down. Note Oil can leak during this tilting process. Remove the high pressure pump from the electric motor. English 5.906-494.0 Rev. 01 (04/11)
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Page 11: Removal Of The Crankshaft Pump
5.4 Removal of the crankshaft pump 5.4.1 Pump diagram 1 Valve screw, suction side, with O-ring 24 Support ring, low pressure seal 2 Suction valve 25 Brass support disc 3 Disc 26 Disc 4 Piston 27 High pressure seal 5 Guide sleeve 28 Support ring, high pressure seal 6 Piston screw 29 Valve screw, pressure side, with O-ring... -
Page 12: Remove The Crank Drive
5.4.2 Remove the crank drive Unscrew the cylinder head. The exact procedure is described in the Chapter "Removing the cylin- der head". Unscrew the pistons from the push rods. Unscrew the oil drain screw and collect oil. ... -
Page 13: Cylinder Head, Uninstall
Grease the inside of the motor shaft with copper – paste. Grease the outside of the crankshaft with copper – paste. Order no. copper paste (100g): 6.869-087.0 5.4.3 Cylinder head, uninstall Loosen the two fastening screws of the overflow (HD 25/15-4) 1 Valve screw, suction side 2 Fastening screws... -
Page 14: Overflow
5.4.4 Overflow Overflow setup 22 Spring 1 Screw socket 23 Spring plate, top 2 O ring 24 Sphere 3 O ring 25 Lock nut, adjustment screw, low pressure 4 Nozzle insert 26 Adjustment screw, low pressure 5 Manometer 27 Spindle of the pressure/quantity regulation 6 Screw connections 28 Adjustment screw, high pressure 7 Spring... - Page 15 Cross section of the overflow 21 Nozzle insert 1 Turning handle 22 O ring 2 Lock nut, adjustment screw, high pressure 23 Screw socket 3 Adjustment screw, high pressure 24 O ring 4 Spindle, pressure and quantity regulation 25 O ring 5 Spring plate, top 26 Spring 6 Sphere...
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Page 16: Regulate The Working Pressure By Means Of The Rotary Know On The Gun
equals the maximum working pressure in the Chapter "Specifications". Secure the adjustment screw for high pressure by tightening the locknut. Seal the adjustment screw for high pressure and the lock nut with locking paint. Setting the minimum working pressure: ... -
Page 17: Electrical System
5.5 Electrical system Warning When working on the device, please always use the current circuit diagram in Kärcher-Inside. 1 Power contactor 5.5.2 Remove the appliance switch rotary knob 2 Terminal strip 3 Terminal strip protective conductor 4 Motor protection electronics 5 Fuse F1 (1.0 AT) 6 Gentle start electronics 7 Control transformer (fuse 2.0 AT) -
Page 18: Functional Description Of The Motor Protection Electronics
The resistance to spray water is ensured by a seal Display of the indicator lamp: on the shaft. Blinking Colour Meaning Loosen the 4 fastening screws. Disconnect the cable connections. Green Operation, voltage present, no Remove the appliance switch. faults ... -
Page 19: Simple Function Test Of The Motor Protection Electronics Without Appli- Ance
Assemble it back in the reverse sequence. The disc must be under the safety bow. 5.6 Gun and spray pipe HD 20/15-4 and 20/ 15-4 The illustration might differ from the gun on your model, however, the procedure is still the same. -
Page 20: Disassemble Hand Spray Gun
5.6.1 Disassemble hand spray gun The hand spray gun can be disassembled to replace seals or wear parts. Remove the lever; press out the pin on the joint. Hand-spray gun Unscrew the locking screw; use a 12 mm hexagon socket wrench. -
Page 21: Adjustments On The Power Press Regulator
5.6.2 Adjustments on the power press regulator The removed piston with springs and seal set Adhere to the sequence of the seal set and the springs when assembling. 1 Ceramic disc on spray pipe side 2 Ceramic disc on gun side The ceramic disc on the gun side is rigidly connected ... -
Page 22: Gun Hp
5.8 Changing Wheels Remove the quick connect with pliers. The quick Longitudinal section of the power press regulator connect cannot be reused. 1 Gun connection 2 Connecting pin 3 Ceramic disc on gun side 4 Ceramic disc on spray pipe side 5 Casing of rotating regulator 6 Handle of rotary regulator 7 Spray pipe connection... -
Page 23: Troubleshooting
Troubleshooting Ensure adequate water line pressure. 6.1 Appliance is not running 3x blinking red: No power – Fault in the voltage supply – Check whether the voltage indicated on the type Check main connections and mains fuse. plate corresponds to the voltage of the socket. -
Page 24: Technical Specifications
Technical specifications Type HD 25/15-4 HD 20/15-4 HD 16/15-4 Power connection Voltage Current type 3~50 3~50 3~50 Connection output 11,5 Current pickup, full load (after 1 minutes) <25 <21 <16 Mains fuse (slow-blow) Maximum allowed net impedance (0,072+j0,045) (0,072+j0,045) (0,072+j0,045) Water connection Max. -
Page 25: Technical Documentation
Appliance type Order number Circuit diagram operating instruc- Spare parts list tions HD 25/15-4 Cage 1.367-121.0 0.089-091.0 5.963-304.0 5.971-040.0 HD 20/15-4 Cage 1.367-131.0 0.089-091.0 5.963-304.0 5.971-077.0 HD 16/15-4 Cage 1.367-105.0 0.089-091.0 5.963-304.0 5.971-077.0 Circuit diagram The status of the attached circuit diagram represents the creation date of the service manual. -
Page 26: Tightening Torques
Crankshaft bearing cover screws 25 Nm Crankshaft bearing cover screws 18-22 Nm Piston rod screws 18-22 Nm Piston rod screws 18-22 Nm 10.2 HD 20/15-4 Gear cover 11 Nm Hollow screws on cylinder head 50 Nm Valve screws 200 Nm Cylinder head screws...