Troubleshooting - Kärcher HDS 801 B Manual

Maintenance Works
Clean the sieve in the water connection
 Take out sieve.
 Clean sieve in water and reinstall.
High-pressure pump
Oil change:
 Ready a catch bin for appr. 1 Liter oil.
 Turn out the oil drain screw.
 Drain the oil in a collection basin.
Dispose of old oil ecologically or turn it in at
a collection point.
 Screw in the oil drain screw.
 Slowly fill in new oil until the "MAX"
marking on the oil container.
Note: Air pockets must be able to leak out.
For oil type and filling quantity refer to
technical specifications.
Motor
Carry out maintenance tasks to the engine
according to the specifications provided in
the operating instructions of the engine
manufacturer.
Decalcify appliance
The flow resistance is higher if there are de-
posits in the pipes; this increases the load
on the motor.
DANGER
Risk of explosion due to combustible gas-
es! Smoking strictly prohibited during de-
calcification. Ensure proper ventilation.
DANGER
Risk of burns injury on account of acid!
Wear protective glasses and protective
gloves.
 Procedure:
According to statutory requirements, only
tested and approved boiler decrusting
agents may be used.
– RM 100 (Order No. 6.287-008) dis-
solves chalk and simple compounds of
chalk and detergents residues.
– RM 101 (Order No. 6.287-013) dis-
solves the deposits that cannot be dis-
solved using RM 100.
 Fill a 20 litre container with 15 l water.
 Add one litre of boiler decrusting agent.
22
 Connect the water hose directly to the
pump and hang in the other free end
into the container.
 Insert the connected spray pipe without
nozzle into the container.
 Start the engine according to the oper-
ating instructions of the engine manu-
facturer.
 Open the hand-spray gun and do not
close it during the decalcification pro-
cess.
 Set the temperature regulator to work-
ing temperature of 40 °C.
 Let the appliance run till the working
temperature is reached.
 Switch off the appliance and let it stand
for 20 minutes. The hand-spray gun
must remain opened.
 Then pump out the machine until empty.
Note: As an anti-corrosion measure and for
neutralising the acid residue, we recom-
mend that you finally pump an alkaline so-
lution through the machine (for e.g. RM 81)
via the detergent tank.

Troubleshooting

DANGER
Risk of injury if the machine is left running
in an unattended state. Shut off the fuel
supply before doing any work on the appli-
ance.
Risk of burns! Do not touch hot silencers,
cylinders or radiator ribs.
Fuel indicator lamp glows
– Fuel tank empty
 Refill.
Motor does not run
Follow operating instructions of the engine
manufacturer!
– Fuel tank empty.
 Refill.
– Spark plug is dirty.
Spark plug is defective.
 Clean or replace the spark plug.
– No oil in the motor.
 Check oil level of the engine.
Replenish oil.
– 8
EN