Transport; Storage; Care And Maintenance - Kärcher HDC 20/8 Manual

Transport

CAUTION
Risk of injury and damage! Observe the
weight of the appliance when you transport
it.
 When transporting in vehicles, secure
the appliance according to the guide-
lines from slipping and tipping over.
Time Activity
daily Check hand-
spray gun
Check high pres-
sure hoses
weekly or after 40 Check the unit for
operating hours leaks
Check oil level
Check oil level
monthly or after 200 Check pump
operating hours
Check water
scarcity fuse
Test swimmer
valve
Check over-
pump time.
Test automatic
start
Tighten hose
clips
half-yearly or after Oil change
500 operating hours
half-yearly or after Check the appli-
1000 operating ance for calcium
hours deposits
Tighten clamps
Test swimmer
valve
annual Safety check
24

Storage

CAUTION
Risk of injury and damage! Note the weight
of the appliance in case of storage.
Maintenance schedule
Assembly affected
Hand spray gun
Outlets, hoses towards working
machine
Entire plant
Oil level indicator on the pump If the oil is milky, it needs to be replaced.
Oil level indicator on the pump Check oil level of the pump. Refill oil if required
High-pressure pump
Swimmer switch in the swimmer
tank
Float tank
Controls
Pressure sensor
All hose clips
High-pressure pump
entire water system
Control board
Float tank
Entire plant
EN
DANGER
Risk of injury! The main switch is to be
switched off while carrying out any repairs
or maintenance jobs.
Performance
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.
Check hoses to see if there are damages. Re-
place defect hoses immediately. Danger of acci-
dent!
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.
(Order no. 6.288-016)
Check the pump for leaks. If the leakage is more
than 3 drops per minute, call Customer Service.
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.
The water level must be 40 mm above the over-
flow. No water must exit while the swimmer valve
is closed.
Close consumer loads (e.g. hand spray guns).
The pump must switch off after the afterrun peri-
od.
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.
Tighten the hose clips using a torque wrench.
Tightening torque up to a diameter of 28 mm =
2Nm, from 29 mm = 6 Nm.
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.
Improper functioning of valves or pumps can be
an indication of calcium deposits. If necessary
decalcify.
Tighten all clamps for components in the main
circuit.
The water level must be 40 mm above the over-
flow. No water must exit while the swimmer valve
is closed.
Safety check according to the guidelines for fluid
spraying equipment.
8
-

Care and maintenance

of whom
Operator
Operator
Operator/Cus-
tomer service
Operator
Operator
Operator
Operator
Operator
Operator
Operator
Operator
Operator
Operator
trained in de-
calcification
Electrician
Customer
Service
Technical ex-
pert