Karcher HD 13-12-4 ST User Manual download pdf (Page 23)

- 6

You can sign with your dealer a contract for

regular safety inspection or even sign a

maintenance contract. Please take advice

on this matter.

Safety inspection/ maintenance

contract

Maintenance schedule

Time Activity Assembly affected Performance of whom

daily Check hand-

spray gun

Hand spray gun Check whether the hand-spray gun closes tightly

without any leaks. Check the protection mechanism

against accidental switching. Replace defective

hand-spray guns.

Operator

opinion Power cord

(Only with appliance versions

with power cable and mains

plug).

Check the mains cable regularly for damage such as

aging or formation of cracks. If you find a damage,

then the cable must be replaced before using it any

further.

Operator/

Customer

Service

Test fill level Detergent tank, Installation wa-

ter softener (optional)

Check filling level, refill if necessary. Operator

Check high pres-

sure hoses

Outlets, hoses towards working

machine

Check hoses to see if there are damages. Replace

defect hoses immediately. Danger of accident!

Operator

weekly or after

40 operating

hours

Check the unit for

leaks

Entire plant Check pumps and pipes for leaks. Inform Customer

Service if there is oil loss or if there is a leakage of

more than 10 drops of water per minute.

Operator/

Customer

Service

Check oil level Oil tank at the pump If the oil is milky, it needs to be replaced. It is recom-

mended likewise in this case that the pump's oil seal

be changed (Customer Service).

Operator/

Customer

Service

Check oil level Oil tank at the pump Check oil level of the pump. Refill oil if required (Or-

der no. 6.288-016)

Operator

Clean filter Filter at the detergent suck hose Clean filter at the detergent suck hose. Operator

Test vibration

dampener

Vibration dampener If the vibration of the pump increases it indicates that

the pressure tank is defective. Replace the vibration

dampener.

Customer

Service

monthly or after

200 operating

hours

Cleaning the

sieve

Sieve in water inlet Check, dismantle sieve and clean it. Operator

Test swimmer

valve

Float tank When the swimmer valve is closed no water can es-

cape the overflow.

Operator

Test automatic

start

Pressure switch Pump is at a standstill, because no water removal

has taken place. Turn on the hand spray gun. If the

pressure in the high pressure network falls below 3

MPa, the pump must be turned on.

Operator

Tighten hose

clips

All hose clips Tighten the hose clips using a torque wrench. Tight-

ening torque up to a diameter of 28 mm = 2Nm, from

29 mm = 6 Nm.

Operator

annually or after

1000 operating

hours

Oil change High-pressure pump Drain off oil. Refill oil. Check oil level in the oil tank. Operator

Check unit 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

annual Safety check Entire plant Safety check according to the guidelines for fluid

spraying equipment.

Technical ex-

pert

23EN

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Karcher HD 13-12-4 ST User Manual Page 23

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