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F. troubleshooting, Fault-finding – Karcher SHD-R 3000 User Manual

Page 24

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SHD-R 3000

English

5.956-486 A2005937 (06/03)

F3

F. Troubleshooting

1. Fault-finding

Problem

Component

Possible cause

Remedy

By whom?

Knocking
noise

V-belt

V-belt has snapped

Replace V-belt (see Maintenance

Tasks)

Operator

Detergent
metering on

suction side of
pump

(Accessory
kit)

Pump is taking in air


Fill up with cleaning liquid.

Check hoses to establish

whether they are taking in air

Operator

Cleaning
liquid

Cleaning liquid is too

warm

Check supply temperature of
cleaning liquid

Operator

High-pressure
pump

Broken valve spring

Replace valve springs

Operator

High-pressure
pump

Flange has come loose

Tighten flange (see Maintenance
Tasks)

Operator

Pulsation

damper

(Accessory
kit)

Defective pulsation

damper

Replace pulsation damper.

Customer
service

Leaking
pressure

switch

Pressure

switch

(Accessory
kit)

Defective seal

Replace seal.

Customer
service

Leaking
pump

High-pressure

switch

Too much free play in

piston seal

Tighten piston seal (see

Maintenance Tasks)

Operator

System
does not
switch off
although
handgun
is closed

Pressure

switch/Volume
control valve

(Accessory
kit)

Wrongly adjusted

pressure switch or

volume control valve

Re-adjust pressure switch and

volume control valve.

Customer
service

Float tank

overflows

Float tank
(Accessory
kit)

Wrongly adjusted
closing force or

maximum filling level

Re-adjust closing force and filling
level, see Chapter G1: Float

tank.

Operator

Defective seal on float

valve

Replace seal.

Operator

Float tank
(Accessory
kit)