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Karcher HDS 9-16-4 ST Gas Manual

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Care and maintenance
DANGER
Risk of injury! The main switch of the vacuum cleaner is to be switched off or the Cekon plug must be unplugged while carrying out
any repairs or maintenance jobs.
Maintenance schedule
Time Activity Assembly affected Performance of whom
daily Check hand-
spray gun
Hand spray gun Check whether the hand-spray gun closes tightly
without any leaks. Check the protection mecha-
nism against accidental switching. Replace de-
fective hand-spray guns.
Operator
Check high pres-
sure hoses
Outlets, hoses towards working
machine
Check hoses to see if there are damages. Re-
place defect hoses immediately. Danger of acci-
dent!
Operator
Check the con-
necting line with
mains plug
Electrical connection with plug/
socket
Check the connecting line with mains plug for
damages. If the power cord is damaged, please
arrange immediately for the exchange by an au-
thorized customer service or a skilled electrician.
Operator
weekly or after 40
operating hours
Check oil level Oil tank at the pump If the oil is milky, it needs to be replaced. Operator
Check oil level Oil tank at the pump Check oil level of the pump. Refill oil if required
(Order no. 6.288-016)
Operator
Cleaning the
sieve
Sieve in water inlet See section "Clean sieve". Operator
monthly or after
200 operating
hours
Check pump High-pressure pump Check the pump for leaks. If the leakage is more
than 3 drops per minute, call Customer Service.
Operator
Check for inter-
nal deposits
Entire plant Operate the machine using the spray pipe without
the high pressure nozzle. If the operating pres-
sure on the manometer of the machine increases
to more than 3 MPa, then the plant needs to be
decalcified. The same is applicable when an op-
erating pressure of more than 0.7 - 1 MPa is de-
tected while operating the machine without high
pressure pipe (water comes out freely at the high
pressure outlet).
Operator
trained in de-
calcification
Cleaning the
sieve
Sieve in the water shortage
safeguard
See section "Clean sieve". Operator
after 500 - 700 op-
erating hours
Replace Electric igniter, ionisation elec-
trode
Replace electric igniter and/or the ionisation elec-
trode.
Customer
Service
half-yearly or after
1000 operating
hours
Oil change High-pressure pump Drain off oil. Fill in 1 l new oil (Order no. 6.288-
016). Check oil level in the oil tank.
Operator
check, clean Entire plant Visual inspection of the plant, check high pres-
sure connections to see that they are not leaking,
check that the over-flow valves are not leaking,
check high pressure hoses, check pressure
tanks, remove calcium deposits from the heating
coil, clean/ replace ionisation electrodes, adjust
burner.
Customer
Service
Replace the hose Hose to exhaust pushbutton
switch
Install new hose. Customer
Service
annual Safety check Entire plant Perform a safety inspection as per the applicable
national rules and regulations for liquid spray jets
of the respective country.
Technical ex-
pert
31EN
… 31 …


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