HDS 698 C www.karcher.com

5.959 - 657

(04/00)

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HDS 698 C

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HDS 698 C

Operating Instructions

Spare Parts List

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English

CONTENTS

Environmental protection

Overview

Commissioning

Check the oil level

Filling with scale inhibitor

Filling with fuel

Filling with cleaning agent

Mounting handgun

Water connection

Drawing in water from tank

Mains connection

Operation

Switching on unit

Setting cleaning temperature

Setting operating pressure and flow rate

Measuring out the cleaning agent

Intended use

Cleaning

Operation with cold water

Operation with hot water

Operation with steam

Each time after usage

Shut-down

Maintenance

Maintenance intervals

HDS 698 C

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Maintenance tasks

Cleaning strainer in water connection

Cleaning strainer in low water

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10 protection

Cleaning filter at

10 cleaning-agent suction hose 10

Changing oil 10

Faults

Warranty

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General information

Technical data

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Prior to initial startup, operating manual and safety instructions no.

It is imperative to read 5.951-949!

Inform retailer immediately of any transportation damage.

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ENVIRONMENTAL PROTECTION

Items used when working, such as fuel, oil, cleaning agent and contaminated maintenance materials, are to be deposited at a special collection point.

Packaging materials, metal and plastic containers are to be set aside for recycling as appropriate.

English

OVERVIEW

Fig. 1

1 Swivel caster with parking brake

2 Connection for high-pressure hose

3 Fuel tank inlet

4 High-pressure hose

5 Cover latch

6 Handgun

7 Pressure gauge

8 Filler opening for cleaning agent

and metering equipment

9 Water connection "1" with strainer

Fig. 2

1 Selector switch ON/OFF and

temperature

Indicator lamps

3 Scale inhibitor deficiency

4 Availability

Fig. 3

Press down cover latch with screwdriver or coin and turn counterclockwise to open.

To close, turn clockwise.

Fig. 4

Compartment for accessories beneath cover

10 Steam nozzle (4.766-023) optional

COMMISSIONING

–

Unit, piping, high-pressure hose and connections must be in perfect working order!

–

Lock the hand brake.

HDS 698 C

Filling with scale inhibitor

Fig. 5

(sample pack included with scope of delivery)

Checking oil level

Fig. 11

Prior to initial startup, cut off tip of oil reservoir cap

Contact KÄRCHER AFTER-SALES

SERVICE immediately if oil is opaque!

If oil level is approaching MIN mark, fill up with oil as far as MAX mark.

Seal oil filler inlet.

Refer to technical data for oil grade.

Scale inhibitor stops heating coil becoming calcified when using hard tap water. Is is metered in at the inlet in the water reservoir one drop at a time.

The metering is set at the factory to medium-hard water.

For other water hardness classes, call in KÄRCHER AFTER-SALES

SERVICE to perform adjustment to local conditions.

Filling with fuel

– Never operate unit with fuel tank empty! Fuel pump would otherwise be destroyed!

Fig. 6

Fill up only with kerosine or domestic fuel.

Close tank cap

Wipe off excess fuel

Filling with cleaning agent

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Only use KÄRCHER products.

*

Never pour in solvent (petrol, acetone, thinner etc.)!

*

Avoid contact with eyes and skin

*

Pay attention to cleaning-agent manufacturer's instructions on safety and handling

KÄRCHER can provide an individual range of cleaning and treatment agents.

Your dealer will be pleased to advise you.

Fig. 9

Fill with cleaning agent

Mounting handgun

– Connect spray lance to handgun

– Insert high-pressure nozzle in union nut

– Mount and tighten unit nut

– Mount high-pressure hose at highpressure connection Fig. 1 Item 2

English

Water connection

For connected loads, refer to

Technical Data.

Mount supply hose at water connection of unit.

Fig. 1 Item 9

(supply hose is not part of scope of delivery)

Drawing in water from tank

The following conversion work is necessary if water is to be drawn in from an external tank.

Fig. 12

Lift off scale inhibitor reservoir.

Remove upper supply hose to water reservoir and route to pump head.

Fig. 13

Detach water connection at pump head and swivel aside.

Connect supply hose to pump head.

For drawing in, use 3/4 hose with suction filter.

Max. suction height 0,5 m.

HDS 698 C

Mains connection

Refer to technical data and rating plate for connected loads.

Fitting power plug

Have power plug fitted by

KÄRCHER AFTER-SALES

SERVICE or an authorised electrician.

OPERATION

*

Never operate unit with fuel tank empty! Fuel pump would otherwise be destroyed!

Set selector switch to "0"

Insert power plug

Switching on unit

Fig. 2

Set selector switch (1) to "I"

Indicator lamp (4) lights

Whenever socket is changed, check direction of rotation of motor

If direction of rotation is correct, powerful jet of air will be felt at exhaust-gas opening of burner.

In the event of incorrect direction of rotation, refer to Faults "Burner not ignited"

If an extension cable is used, this should always be fully uncoiled and have an adequate cross-section.

(10 m min. 1,5 mm

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, 30 m min. 2.5 mm

2

)

* Turn the appliance off immediately whenever pilot lamp (3) lights up during operation. Eliminate fault, refer to Faults.

Unit starts up briefly and is switched off as soon as operating pressure is reached.

Fig. 7

Release handgun

Actuation of handgun switches unit back on again.

Bleed pump if no water emerges from high-pressure nozzle. Refer to

Faults "No build-up of pressure by unit"

Setting cleaning temperature

Set selector switch (1) to desired temperature

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30°C to 90°C

Hot water cleaning

100°C to 150°C

Clean with steam

(with steam nozzle 4.677-023)

Setting operating pressure and flow rate

Fig. 8

Turning regulator clockwise:

Increases operating pressure (MAX)

Turning counter-clockwise: Reduces operating pressure (MIN)

Set selector switch (1) to max. 98°C.

Measuring out the cleaning agent

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Use cleaning agents sparingly to protect the environment

*

The cleaning agent must be suitable for the surface to be cleaned.

English

Fig. 10

Set cleaning-agent concentration as specified by manufacturer

0 =Working without cleaning agent

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Metering setting

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Concentration

0,25%

1,00%

1,25%

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6 2,00%

Approximate values at maximum operating pressure

1,50%

1,75%

Intended use

Cleaning of: Machines, vehicles, buildings, tools, facades, terraces, garden tools, etc..

* Engine cleaning is only to be performed in areas provided with oil separator.

* Heed appropriate safety regulations for use at petrol stations or in other hazardous environments.

HDS 698 C

Working with high-pressure nozzle

Spray angle is crucial to efficiency of high-pressure jet.

Use is normally made of 25°fan jet nozzle (included).

Recommended cleaning method

Loosen up dirt:

Spray on cleaning agent sparingly and allow to react for 1...5 min

(do not allow to dry on).

Remove dirt:

Spray off loosened-up dirt with highpressure jet.

Recommended nozzles, available as accessories

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For stubborn dirt 0°full jet nozzle

Operation with cold water

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For delicate surfaces and slight contamination 40°fan jet nozzle

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For thick layers of stubborn dirt dirt blaster

Removal of slight contamination and rinsing e.g.: Garden implements, terrace, tools, etc.

– Nozzle with variable spray angle, for adaptation to various cleaning tasks variable-angle nozzle

Set operating pressure as required

Set selector switch to "I"

Operation with hot water

* Danger of scalding

Cleaning

* Set pressure/temperature and cleaning-agent concentration in line with surface to be cleaned

* Always start by directing highpressure jet from a good distance at object to be cleaned to avoid damage caused by excessive pressure.

We recommend the following cleaning temperatures

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Slight contamination 30-50°C

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Protein soiling, e.g. in foodstuffs industry max. 60°C

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Motor vehicle cleaning, machine cleaning 60-90°C

Set selector switch to desired temperature

Operation with steam

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At operating temperatures above

98°C operating pressure must not exceed 32 bar.

Standard high-pressure nozzle is therefore to be replaced with steam nozzle (part no.: 4.766-023, see accessories).

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Set operating pressure to minimum value. See Fig. 8

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Set temperature regulator to min. 100°C

* Danger of scalding!

We recommend the following cleaning temperatures

– Preservative removal, extremely greasy dirt 100-110°C

– Thawing of aggregates, certain facade cleaning operations up to

140°C

English

EACH TIME AFTER USAGE

Following operation with cleaning agent

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Set cleaning-agent regulator to "0"

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Set mode selector switch to "I"

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Actuate handgun and flush unit for approx. 1 min

Stopping machine

– Set mode selector switch to "0"

– Shut off water supply

– Briefly (approx. 5 sec.) switch on pump with selector switch

– Remove mains plug from socket

ONLY with dry hands

– Detach water connection

– Actuate handgun to depressurise unit

– Lock the hand spray gun Figure 7

– Engage spray lance in cover holder

– Roll up high-pressure hose and cable and place in compartment

* Take care not to kink highpressure hose and cable!

HDS 698 C

DISCONTINUATION OF USAGE MAINTENANCE Maintenance intervals

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In the event of lengthy periods of non-use or if frost-free storage is not possible:

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Drain off water and flush out equipment with antifreeze

– Drain cleaning fluid tank

Drain off water

– Unscrew water supply hose and high-pressure hose

– Unscrew supply line at boiler base and allow heating coil to drain

– Run unit for max. 1 min until pump and lines are empty

Flushing unit with anti-freeze

– Use commercial grade antifreeze

– Observe handling instructions of antifreeze manufacturer

– By this means, a certain degree of corrosion protection is achieved

*

Disconnect unit from mains before carrying out any maintenance or repair work.

*

Always use genuine spare parts

Shut off unit before performing any work, refer to "AFTER USE".

Set mode selector switch to "0"

Pull power plug out of socket

Shut off water supply

Actuate handgun to depressurise unit.

Detach water connection

Allow unit to cool down

Please consult your KÄRCHER dealer for details of regular safety inspection/maintenance agreement

Once a week

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Clean strainer in water connection

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Check oil level

Contact KÄRCHER AFTER-SALES

SERVICE immediately if oil is opaque!

Once a month

– Clean strainer in low water protection

– Clean filter at cleaning-agent suction hose

After 500 hours of operation, at least once a year

– Change oil

Frost will destroy unit if water is not drained off completely!

Store unit in a frost-free location

Take unit out of service if frost-free storage is not possible.

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MAINTENANCE TASKS

Cleaning strainer in water connection

Fig. 15

– Remove strainer

– Clean in water and re-insert

Cleaning strainer in low water protection

Fig. 16

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Unfasten union nut and detach hose

Fig. 17

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Take out strainer

If necessary, screw in bolt M8 approx. 5mm to pull out strainer.

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Clean strainer in water

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Slide in strainer

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Mount hose

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Tighten union nut

Cleaning filter at cleaning-agent suction hose

Fig. 14

– Pull out cleaning-agent suction hose

– Clean filter in water and re-insert

HDS 698 C

Changing oil

Fig. 18

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Provide a collecting container for approx. 1 litres of oil

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Place drainage spout in position

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Loosen starting screw

Fig. 19

KÄRCHER tip

* Cut open RM 110 bottle and use as drainage spout

– Drain off oil via drainage spout into collector

FAULTS

READY FOR OPERATION indicator lamp off

Motor overloaded/overheated

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Set selector switch to "0" and allow motor to cool down for at least 5 min.

– Have unit checked by After-Sales

Service if this does not remedy fault.

* Dispose of used oil in appropriate manner or hand in at a collection point.

SCALE INHIBITOR indicator lamp on

Scale inhibitor reservoir empty; for technical reasons there is always a residual quantity in the reservoir.

– Fill up

– Tighten drain plug again

– Slowly fill with oil as far as MAX mark

Air bubbles must be able to escape

Refer to technical data for oil grade and quantity to be used.

Dirt on electrodes in reservoir

– Clean electrodes

Unit does not run

No mains voltage

– Check mains connection/power cord

Unit does not build up pressure

Air in system

– Bleed pump:

* Set cleaning-agent metering to "0"

* With handgun open, use selector switch to switch unit on and off several times.

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With handgun open, open and close regulator (Fig. 8).

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Fill up cleaning-agent tank if empty.

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Check connections and lines

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Pressure set to MIN

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Set pressure to MAX

Strainer in water connection dirty

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Clean strainer

Insufficient water supply

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Check water supply volume (refer to technical data)

Unit leaking, water dripping out at bottom

Pump leaking

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3 droplets/min are permitted.

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In the event of a major leak, have unit checked by After-Sales

Service.

Unit constantly switched on and off with handgun closed

Leak in high-pressure system

– Check high-pressure system and connections for leaks

Unit does not draw in cleaning agent

Filter in cleaning-agent suction hose dirty

– Clean filter

Non-return valve gummed up

– Pull the cleaning agent hose off and release the return valve with a blunt object, see Figure 20.

English

Burner not ignited

Fuel tank empty

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Fill up

Lack of water

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Check water connection, check supply lines, clean low water protection.

Fuel filter dirty

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Replace fuel filter.

Incorrect direction of rotation. If direction of rotation is correct, powerful jet of air will be felt at exhaust-gas opening of burner.

– Check direction of rotation. If necessary, have connection replaced by a qualified electrician.

No ignition spark

– Have unit checked by After-Sales

Service if no ignition spark is visible through inspection glass during operation.

Set temperature not attained when working with hot water

Excessive operating pressure/flow rate

– Reduce operating pressure/flow rate by way of regulator (Fig. 8)

Soot deposits on heating coil

– Have After-Sales Service remove soot deposits from unit

HDS 698 C

If fault cannot be rectified, have unit checked by After-Sales

Service.

GENERAL INSTRUCTIONS

Safety features

WARRANTY

The warranty terms and conditions issued by our responsible sales company apply in every country.

Within the warranty period, any faults in the unit will be rectified free of charge provided that the problem was caused by a material defect or manufacturing error.

The warranty only applies if the dealer fills in, stamps and signs the enclosed reply card when the unit is sold and the purchaser then returns it to the appropriate local distributor.

In the event of a warranty claim, please contact your dealer or the nearest authorised After-Sales

Service office and produce both accessories and proof of purchase.

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Overflow valve with two pressure switches

The overflow valve opens when the water quantity at the pump head is reduced and some of the water flows back to the pump‘s suction inlet.

If the handgun is closed thus causing all the water to return to the pump suction end, the pressure switch at the overflow valve shuts off the pump.

Reopening the handgun causes the pressure switch at the cylinder head to switch the pump back on again.

The overflow valve is set at the factory and lead-sealed. Adjustment can only be made by After-Sales

Service.

* Safety valve

The safety valve opens if the overflow valve or pressure switch is defective. The safety valve is set at the factory and sealed. Adjustment can only be made by After-Sales

Service.

* Low water protection

The low water protection stops the burner being switched on in the event of a lack of water. A strainer stops the protection feature

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becoming dirty and requires regular cleaning.

*

Motor protection switch

The motor protection switch interrupts the circuit should overloading occur.

Guidelines for liquid spraying equipment

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The accident prevention instructions (VBG 87) Working with Jet Stream Equipment will apply. In accordance with these guidelines, high-pressure spraying equipment must be checked at least every 12 months by an expert and the results of the inspection recorded in writing.

Order governing boilers

* Test pressure and design of unit comply with Order governing boilers as per TRD. The water content of the heating coil is less than 10 litres. The boiler section of the unit is thus not subject to installation regulations. Local building regulations are to be heeded.

English

TECHNICAL DATA

Mains connection

Connected power

Fuse protection

(slow response)

Mains connection

200 V

3~50 Hz

3,6 kW

16 A

Connected power

Fuse protection

(slow response)

200 V

3~60 Hz

3,6 kW

16 A

Water connection

Supply temperature

Supply quantity

Suction head for max. 30 C min. 900 l/h withdrawal from an open tank 0,5 m

(at a water temperature of 20°C)

Performance data

Cold/hot water flow rate 300-700 l/h

Cold/hot water working pressure 32-130 bar

(using the supplied standard nozzle)

Steam operation mode flow rate 300 l/h

Steam operation mode working pressure max. 32 bar

(using steam nozzle 4.766-023)

HDS 698 C

Working temperature

-Hot water max. 90 C

-Steam operation mode 98-155 C

Cleaning agent intake

Burner capacity

0-12 l/h

40 kW

Recoil power of the hand spray gun

Sound pressure according to

DIN 45635 T36

Operating agents

Fuel max. 28 N

76 dB(A)

Fuel tank

Cleaning agent tank

Kerosene

0,5 l Oil quantity

Oil grade Hypiod SAE 90

(6.288-016)

Dimensions and weights

Length x width x height

940 x 600 x 740 mm

Weight without accessories 94 kg

16 l

8 l

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