Karcher HD 7-16-4 ST: Device elements

     - 

4

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

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

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.



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.

Device elements

Operating elements

Operation

Safety instructions

Making the plant ready for 

operations

21

EN