Maintenance and care, M danger, Maintenance schedule – Karcher HDS 12-14-4 ST Gas User Manual
Page 31: Time, Activity, Assembly affected, Performance, Of whom, Daily, Check hand- spray gun
-
9
ƽ
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 and care
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 with-
out the high pressure nozzle. If the operating
pressure on the manometer of the machine in-
creases to more than 3 MPa, then the plant
needs to be decalcified. The same is applicable
when an operating pressure of more than 0.7 - 1
MPa is detected 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
electrode.
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
expert
31
EN