Device Elements; Operation - Kärcher HD 7/16-4 ST Manual

Device elements

Appliance cover removed.
1 Oil tank
2 Oil drain screw
3 Power switch
4 Electronics system
5 Dosage valve for detergent
6 Container of softener liquid (option)
7 Float tank
8 Hourmeter (option)
9 Prepressure pump (model ST-H only)
10 Connectors for upgrade kits
11 Water input (HD 7/16, HD 8/19)
12 Fastening screw for device hood
13 Pressure switch
14 Vibration dampener
15 Mains cable with mains plug
(not with all appliance versions)
16 High-pressure outlet
17 Water inlet (HD 13/12)
18 High-pressure pump
Operating elements
1 Indicator lamp
Glows green: Appliance ready to oper-
ate.
Blinks green: Readiness period
elapsed or maximum time for continu-
ous operation exceeded (hose break
fuse).
Glows yellow: Fill in softener liquid
(option).
Blinks yellow: Lack of water (option)
Glows red: Leaks in the high pressure
system.
2 Power switch
3 Indicator lamp for detergent
Glows if detergent container is empty
(option).
4 Dosage valve I for detergent
5 Dosage valve II for detergent (optional)
1 Safety lever
2 Trigger gun
3 Lever for trigger gun
4 Pressure/quantity regulation (option)
5 High pressure hose
6 Spray lance
7 Marking of the triple nozzle
8 Triple nozzle
4
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EN

Operation

Safety instructions
The operator must use the appliance cor-
rectly. When working with the appliance, he
must consider the local conditions and pay
due care and attention to other persons, in
particular children, who are nearby.
Never leave the appliance unattended
when it is in operation.
DANGER
– Only operate the equipment with the
front cover closed.
– Risk of injury! Device, tubes, high pres-
sure hose and connections must be in
faultless condition. If they are not in a
perfect state then the appliance must
not be used.
DANGER
– The jet must not be directed at other
persons or directed by the user at him/
herself to clean clothing or footwear.
– Risk of injury from parts flying off! Fly-
ing-off fragments or objects can injure
people or animals. Never direct the wa-
ter jet on fragile or loose objects.
DANGER
Long hours of using the appliance can
cause circulation problems in the hands on
account of vibrations.
It is not possible to specify a generally valid
operation time, since this depends on sev-
eral factors:
– Proneness to blood circulation deficien-
cies (cold, numb fingers).
– Low ambient temperature. Wear warm
gloves to protect hands.
– A firm grip impedes blood circulation.
– Continuous operation is worse than an
operation interrupted by pauses.
In case of regular, long-term operation of
the device and in case of repeated occur-
rence of the symptoms (e.g. cold, numb fin-
gers) please consult a physician.
Making the plant ready for
operations
DANGER
Risk of injury on account of the emanating
water jet that could be hot!
 Check high pressure hose, pipe con-
nections, fittings and water jet for dam-
age every time before use.
 Replace leaky components immediate-
ly and seal all leaky connection points
immediately.
 Check hose coupling to ensure that it
sits firmly and is leak-proof.
ATTENTION
Risk of damage on account of dry running.
 Check filling level of the detergent tank
and refill if required.
 Check softener fluid level and refill if
necessary.
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