Karcher HDC advanced - Manual (Page 23)

English 23
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Danger
Risk of injury! The main switch is to be switched off 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 spraygun 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
weekly or after 40
operating hours Check the unit
for leaks Entire plant Check pumps, overflow valve and pipe system
for leaks. Inform Customer Service if there is oil
below the pump or if there is a leakage of more
than 3 drops of water per minute. Keep the leak-
age borings clear. Operator/
Customer
service
Check oil level Oil level indicator on the pump If the oil is milky, it needs to be replaced. Operator
Check oil level Oil level indicator on the pump Check oil level of the pump. Refill oil if required
(Order no. 6.288-016)
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 water
scarcity fuse Swimmer switch in the swim-
mer tank Press the swimmer of the low water fuse down
for about 5 seconds and control the error indica-
tor on the control board. Remove deposits if nec-
essary. Customer
Service
Test swimmer
valve Swimmer tank The water level must be 40 mm above the over-
flow. No water must exit while the swimmer valve
is closed. Adjustment - see service manual. Customer
Service
Check over-
pump time. Controls Close consumer loads (e.g. hand spray guns).
The pump must switch off after the afterrun peri-
od. Operator
Test automatic
start Pressure sensor The pump stands still as there is no water trans-
fer. Open the hand spray gun. If the pressure in
the high-pressure cycle falls below the switch-
point, the pump must switch on. Operator
Tighten hose
clips All hose clips Tighten the hose clips using a torque wrench.
Tightening torque up to a diameter of 28 mm =
2Nm, from 29 mm = 6 Nm. Operator
half-yearly or after
1000 operating
hours Oil change High-pressure pump Drain off oil. Fill in 1 l of fresh oil (order no. 6.288-
016.0). Check the oil level at the oil level indica-
tor. Operator
Check the appli-
ance for calcium
deposits entire water system Improper functioning of valves or pumps can be
an indication of calcium deposits. If necessary
decalcify. Operator
trained in de-
calcification
Tighten clamps Control board Tighten all clamps for components in the main
circuit. Electrician
annual Safety check Entire plant Safety check according to the guidelines for fluid
spraying equipment. Technical
expert
Depending on ambi-
ent conditions Check the filter
mats of the ven-
tilator Control board Check the filter mats of the ventilator for contam-
ination and clean if necessary. Replace with new
filter mats after cleaning them 10 times. Customer
Service