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Kärcher HDS 7/10-4 M repair times and service schedule

Kärcher HDS 7/10-4 M: 100 bar · 11.7 l/min · hot water, electric mobile / wheeled pressure washer. Below are the recommended service intervals and guide labour times. The annual service takes about 2 h 30 min.

Specifications

TypeHot water, electric
FormatMobile / wheeled
Pressure100 bar
Flow rate11.7 L/min (700 L/h)
Connected load3.4 kW
HeatingOil / diesel burner
Supply240 V 1~
Max temperature155 °C
StatusCurrent model
Model codeHDS-7-10-4-M

Service schedule and repair times

Every 6 months

OperationGuide timeHours
Burner Fuel Filter Replacement10 min0.17 h
Burner Fuel Nozzle Replacement20 min0.33 h
Heating Coil De-scale1 h1 h
6-Month Intermediate Service1 h 30 min1.5 h

Every 12 months

OperationGuide timeHours
Anti-scale Dosing System Service20 min0.33 h
Burner Electrode Replacement (pair)20 min0.33 h
Combustion Analysis30 min0.5 h
Annual Full Service2 h 30 min2.5 h

Every 24 months

OperationGuide timeHours
Photocell / Flame Sensor Replacement15 min0.25 h
2-Year Major Overhaul4 h4 h

Repairs (as required)

OperationGuide timeHours
Pressure Switch ReplacementMembers
High-Pressure Hose ReplacementMembers
Unloader Valve ReplacementMembers
Ignition Transformer ReplacementMembers
Fuel Pump Replacement (burner)Members
Flow Switch ReplacementMembers
Thermostat ReplacementMembers
Check Valve Replacement (set)Members
Diagnostic — Fault FindingMembers
Control Board / PCB ReplacementMembers
Pump Seal Kit ReplacementMembers
Burner Motor ReplacementMembers
Pump Rebuild (full)Members
Heating Coil ReplacementMembers

Guide times are for a competent technician with the correct parts and tools, and exclude travel. Always follow the manufacturer's service documentation. Specifications: manufacturer data.

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