Kärcher HD 7/16-4 Cage, Manual

Page: 18 / 204

– 4
The engine is to be brought to a standstill
and the appliance is to be fastened properly
during transportation.
– Switch off the appliance and, in case of
appliances connected to the mains, pull
out the power cord before cleaning and
performing any maintenance tasks on
the machine.
– Relieve the high pressure system of all
pressure prior to all work on the appli-
ance and the accessories.
– Maintenance work may only be carried out
by approved customer service outlets or
experts in this field who are familiar with
the respective safety regulations.
– Mobile industrial apliances are subject
to safety inspections according to the
local regulations (for e.g. the following
are applicable in Germany: VDE 0701).
– To avoid risks, all repairs and replace-
ment of spare parts may only be carried
out by the authorised customer service
personnel.
– Only use accessories and spare parts
which have been approved by the man-
ufacturer. The exclusive use of original
accessories and original spare parts
ensures that the appliance can be oper-
ated safely and trouble free.
Use this high pressure cleaner exclusively for
– cleaning with a high pressure jet without
detergent (e.g. cleaning of facades, ter-
races, garden appliances, vehicles and
similar objects).
For stubborn dirt, we recommend the use of
the dirt blaster as a special accessory.
Quality requirements for water:
ATTENTION
Only clean water may be used as high
pressure medium. Impurities will lead to in-
creased wear and tear or formation of de-
posits in the appliance.
If recycled water is used, the following limit
values must not be exceeded.
Safety devices serve to protect the user
and must not be rendered in operational or
their functions bypassed.
– While reducing the water supply/quanti-
ty regulation at the pump head, the
overflow valve opens and part of the
water flows back to the pump suck side.
– If the hand spray gun is closed, the
overflow valve opens and the entire wa-
ter volume will flow back to the pump
suction side.
The overflow valve is set by the manufac-
turer and sealed. Setting only by customer
service.
Transport
Maintenance
Accessories and Spare Parts
Proper use
pH value 6,5...9,5
electrical conductivity * Conductivity
fresh water
+1200 µS/cm
settleable solids ** < 0,5 mg/l
total suspended solids *** < 50 mg/l
Hydrocarbons
< 20 mg/l
Chloride < 300 mg/l
Sulphate < 240 mg/l
Calcium < 200 mg/l
Total hardness < 28 °dH
< 50 °TH
< 500 ppm
(mg CaCO
3
/l)
Iron < 0,5 mg/l
Manganese < 0,05 mg/l
Copper < 2 mg/l
Active chloride < 0,3 mg/l
free of bad odours
* Maximum total 2000 µS/cm
** Test volume 1 l, settling time 30 min
*** no abrasive substances
Safety Devices
Overflow valve
18 EN