Karcher HD 1050 B - Manual (Page 18)

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 Check the high pressure hose for dam-
ages (risk of bursting). Please arrange
for the immediate exchange of a dam-
aged high-pressure hose.
 Check oil level.
Please contact Customer Service immedi-
ately if the oil is milky (water in oil).
 Clean the sieve in the water connection.
 Clean filter at the detergent suck hose.
 Oil change.
Oil change:

Ready a catch bin for appr. 1 Liter oil.
 Turn out the oil drain screw.
 Drain the oil in a collection basin.
 Turn out the oil drain screw.
 Slowly fill in new oil until the "MAX"
marking on the oil sight glass.
Note: Air pockets must be able to leak out.
For oil type refer to technical specifica-
tions.
ṇ
Warning
Risk of injury if the machine is left running
in an unattended state. Remove the spark
plug before doing any work on the appli-
ance.
Risk of burns! Do not touch hot silencers,
cylinders or radiator ribs.
Follow operating instructions of the engine
manufacturer!
– Operating speed of the engine is too
low
 Check operating speed of the engine
(refer to technical data).
– Nozzle is set to "CHEM"
 Set nozzle to "High pressure".
– Nozzle is blocked/ washed out
 Clean/ replace nozzle.
– Filter at the water connection is dirty
 Clean filter.
– Air within the system
 Appliance ventilation:
– Amount of water supply is too low.
 Check water supply level (refer to tech-
nical data).
– Pipe inlets to pump are leaky or blocked
 Check all inlet pipes to the pump.
– Pump leaky
Note: 3 drops/minute are allowed.

With stronger leak, have device
checked by customer service.
– Inlet pipes to the pump are leaky.
 Check all inlet pipes to the pump.
– Air within the system
 Appliance ventilation:
Maintenance intervals
Daily
Weekly
Monthly
After 500 operating hours, at least annu-
ally
Maintenance Works
High-pressure pump
Dispose of old oil ecologically or turn it in
at a collection point.
Troubleshooting
Appliance is not running
Device is not building up pressure
Device leaks, water drips from the
bottom of the device
Pump is vibrating
18 EN