HDS 7/12 M, HDS 8/18 M, HDS 9/18 M, HDS 10/20 M, HDS 12/18 S

HDS 7/12 M, HDS 8/18 M, HDS 9/18 M, HDS 10/20 M, HDS 12/18 S

HDS 7/12 M, HDS 8/18 M,

HDS 9/18 M, HDS 10/20 M,

HDS 12/18 S, HDS 13/20 S

Service Manual

English 5.906-432.0 Rev. 00 (06/15)

1

1 Contents

2 Preface 5

4.1 General

4.2 Connection performance of appliance

4.3 Pump

4.5 Detergent

4.6 Accessories

4.7 Field application

5 Parts of the system 7

5.2 View from the back, (device without hose reel)

5.3 View from the back, (device with hose reel)

5.4.1 Control panel with LED indicator

5.4.2 Template numerical value display

5.4.3 Control panel, view from the inside

5.4.4 Printed circuit board, control panel

5.4.5 Control panel with display indication (HDS 13/20 only)

6 Function

6.2

6.3

Maintenance operating fluids

Setting liquid softener

6.6 Cover

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21

6.7 View from the right, cover removed 22

6.7.1 Revised device design (with filter before the pump and electronic ignition transformer) 23

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6.10.1 Feed via tank (export variant)

6.10.2 Feed via RFID (Europe variant)

6.10.3 Functionality RFID

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6.12.1 Detergent tank 1

6.12.2 Detergent tank 2

6.13 Detergent dosing valve

6.14.1 Motor (air-cooled)

6.15 Electrical box, air-cooled motor

6.16.1 Engine (water-cooled)

6.16.2 Electrical box, water-cooled engine

6.17 Pump

6.17.1 Revised version with filter before the pump

6.19 Safety block (water shortage safeguard old)

6.19.1 Water shortage safeguard as cartridge

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6.19.2 Safety block (water shortage safeguard new)

6.19.3 Function water shortage safeguard and dry-run protection

6.19.4 Function of safety valve

6.20 Burner blower with fuel pump

6.21 Booster heater (with ignition transformer)

6.22 Booster heater (with ignition transformer new)

6.22.1 Type plate of heating coil

6.22.2 Ignition transformer

6.22.3 Flame sensor with holder on the burner

6.22.4 Sectional view booster heater

6.23 Burner

6.24 Burner

6.25 Output, booster heater

6.27 Pressure and volume regulation

6.28 Functional diagram of pressure water operation (water-cooled motor)

6.31 Pressure and volume regulation

6.31.1 Function pressure and volume regulation

6.32.1 Appliance is switched off

6.32.2 The appliance is switched on and the gun is open

6.32.3 Gun is closed

6.32.4 The gun is reopened when the appliance is switched on

7 Basic settings and service procedures

7.1 Remove the hose drum

7.1.1 Uninstall / install high-pressure hose

7.1.2 Renew O-rings axle, hose reel

7.1.3 Uninstall / install pipeline with axle

7.2 Uninstall / install pressure gauge

7.5 Set up the switching off process

7.6 Set up the leakage behaviour

7.7 Brightness value of the flame sensor

7.9 Testing the temperature sensor

7.10 Testing the water temperature setting and the programme switch

7.11 Testing the service switch

7.17 Gun switches since initial startup

7.18 Operation duration of the burner since burner service

7.20 Burner operation since initial startup

7.21 Operating hours of the pump since pump service

7.23 Pump operation since initial startup

7.24 Servicefunktionen mit Displayanzeige

7.25 Set up the switching off process

7.26 Set up the leakage behaviour

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7.28 Brightness value of the flame sensor

7.29 Testing the temperature sensor

7.30 Testing the water temperature setting and the programme switch

7.31 Test service switch

7.37 Gun services since initial startup

7.38 Operation duration of the burner since startup

7.40 Burner operation since initial startup

7.41 Operating hours of the pump since pump service

7.43 Pump operation since initial startup

7.44 Quick overview for reading the service functions

7.45 Reset of the maintenances

7.46 Overview of a quick check of the device status

7.48 Installation air duct on the outer jacket

7.49 Adjusting the working pressure with the rotary regulator on the gun

7.49.1 Setting the maximum working pressure

7.49.2 Setting the minimum working pressure

7.50 Setting the working pressure with standard gun without rotary knob

7.50.1 Setting the maximum working pressure

7.50.2 Setting the minimum working pressure

9 Troubleshooting

9.2 Error message with service demand

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English 5.906-432.0 Rev. 00 (06/15)

2 Preface

Good service work requires extensive and practice-oriented training as well as well-structured training materials.

Hence we offer regular basic and advanced training programmes covering the entire product range for all service engineers.

In addition to this, we also prepare service manuals for important appliances - these can be initially used as instruction guides and later on as reference guides.

Apart from this, we also regular information about product enhancements and their servicing.

If you should require supplements, have corrections or questions regarding this document, please address these citing the following subject to:

3 Safety instructions

3.1

Hazard levels

DANGER

Immediate danger that can cause severe injury or even death.

WARNING

Possible hazardous situation that could lead to severe injury or even death.

4 Technical Features

4.1

General

Mobile hot water high-pressure cleaners in various performance classes for commercial use.

High performance burner with upright heating coal and continuous ignition

Built-in calcification protection

4.2

Connection performance of appliance

3,4 kW (HDS 7/12-4 M/MX)

5,5 kW (HDS 8/18-4 M/MX)

6,4 kW (HDS 9/18-4 M/MX)

4.3

Pump

3 piston axial pump with stainless steel piston; some models feature ceramic coating

Cylinder head made of brass

High-pressure and suction valve faces made of stainless steel

Working pressure: 3-20 MPa (30-200 bar)

4.4

Electronics system

Program selection switch

Flame sensor (option)

Water temperature regulation with temperature sensor

Exhaust temperature monitor

Water shortage safeguard

Dry-run protection for the pump

[email protected]

Subject:

Fall 105756

The responsible product specialist will take care of your issue.

Copying and duplication of texts and diagrams as well as third-party access to this information is permitted only with the explicit permission of the company:

Alfred Kärcher GmbH & Co. KG

Postfach 160

71349 Winnenden (Germany) www.kaercher.com

CAUTION

Possible hazardous situation that could lead to mild injury to persons or damage to property.

Steam operation (water temperatures up to 155 °C) with separate steam nozzle

Burner blower and fuel pump directly on the electric motor

ECO - mode for 60°C (+/- 9 K)

7,8 kW (HDS 10/20-4 M/MX)

8,4 kW (HDS 12/18-4 S/SX)

9,3 kW (HDS 13/20-4 S/SX)

Water quantity: 350-1,300 l/h

Manometer

Overflow valve with pressure and quantity regulation

Float tank

Safety valve

Water fine filter

Level sensor for fuel, liquid softener and detergent tanks (optional in some cases)

Operating hour counter

Error memory

Component tests

Fault monitoring

Monitoring of rotation direction

4.5

Detergent

2 detergent tanks

Detergent inlet with fine filter

Dosing valve on the device with automatic clear rinsing in zero position.

Detergent with low pressure and high pressure

English 5.906-432.0 Rev. 00 (06/15)

5

4.6

Accessories

Rotary regulator for pressure and quantity regulation

Soft grip - easy press gun

Stainless steel spray lance, rotating

4.7

Field of application

HDS 7/12-4 M/MX

HDS 8/18-4 M/MX

HDS 9/18-4 M/MX

4.8

Type plate

Power nozzle (stainless steel)

Steam nozzle (brass)

HDS 10/20-4 M/MX

HDS 12/18-4 S/SX

HDS 13/20-4 S/SX

1 Appliance description

2 Connection output

3 Type of protection

4 Part number

5 Bar code. Contains part and serial number.

6 Address of manufacturer

7 Serial number

8 Year of manufacture

9 Max. operating over-pressure

10 Flow rate

11 Working pressure

12 Main Supply

6

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5 Parts of the system

5.1

Front view

1 Push handle

2 Cover, upper storage compartment

3 Safety catch, soft grip - easy press gun

4 Rotating regulator

5 Hand lever

6 Soft grip - easy press gun

7 Lock for fuel tank

8 High pressure hose

9 Rotating spray lance

10 High pressure nozzle

11 Transport wheel (2x)

12 Transport bracket

13 Steering roller

14 Steering roller with fixed position brake

15 Chassis

16 Cover

17 Exhaust nozzle

18 Lock of appliance hood

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7

5.2

View from the back, (device without hose reel)

1 Indicator lamps

2 Programme selector switch (Q1)

3 Storage spray pipe

4 Setting, water temperature

5 Closure, liquid softener tank

6 Storage, power cord

7 Storage compartment

8 Supply Cord

9 Closure detergent tank 2

10 High pressure outlet

11 Chassis

12 Water connection with water fine filter

13 Tread

14 Closure detergent tank 1

15 Storage high-pressure hose

16 Closure fuel tank

17 Setting detergent dosing unit

18 Storage spray pipe

19 Manometer

20 Cover, upper storage compartment

8

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5.3

View from the back, (device with hose reel)

1 Indicator lamps

2 Programme selector switch (Q1)

3 Storage spray pipe

4 Setting, water temperature

5 Closure, liquid softener tank

6 Storage, power cord

7 Hose reel, high-pressure hose

8 Supply Cord

9 Closure detergent tank 2

10 Crank, hose drum

11 Recess hose reel lock

12 Chassis

13 High pressure hose

14 Water connection with water fine filter

15 Tread

16 Closure detergent tank 1

17 Storage high-pressure hose

18 Lock for fuel tank

19 Setting detergent dosing unit

20 Storage spray pipe

21 Manometer

22 Cover, upper storage compartment

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9

5.4

Operator console

5.4.1

Control panel with LED indicator

1 Control LED 0, pump (red)

Note

Symbol depending on unit model.

2 Control LED 1, rotation direction (red)

3 Control LED 2, operation (green)

4 Control LED 3, fuel (yellow)

5 Control LED 4, detergent tank 1 (yellow)

6 Control LED 5, motor (red)

7 Control LED 6, burner (red)

8 Control LED 7, service (orange)

9 Control LED 8, liquid softener (yellow)

10 Control LED 9, detergent tank 2 (yellow)

11 Programme switch position "Off"

12 Programme switch position "Cold water operation"

13 Programme switch position "ECO mode"

14 Programme switch position "Hot water / steam operation"

15 Programme switch

16 Setting, water temperature

17 Dosage valve for detergent

18 Dosing range detergent tank 1

19 Dosing range detergent tank 2

20 Manometer

Note

In the "ECO mode“ the water temperature is maintained at

60? (+/- 9 K). Set water temperatures < 60°C are effective,

<60 ? remain ineffective.

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4

5

LED no.

0

Symbol Activity

1 x blinking

2 x blinking

3 x blinking

4 x blinking

1 1 x blinking

Meaning / measure

Lack of oil. Check/fill oil level of the high pressure pump; repair leaks.

Leakage. 10 short startups. Check the high-pressure system for leaks.

Dry running (2 minutes). Check / ensure the water supply.

Reed switch or solenoid is sticky. Check safety block/ repair reed switch.

Motor turns in the wrong direction. Switch off the device and turn the phase inverter in the unit plug by 180°.

2

3 glow

1 x blinking

The appliance is now ready for operation.

Either the device was in continuous operation for 30 minutes or in standby mode for 30 minutes.

glow Fuel tank empty; fill fuel.

glow Detergent tank 1 is empty. Refill detergent (only HDS 12/18)

1 x blinking

2 x blinking

3 x blinking

4 x blinking

Fault in the motor contactor (motor current below 1.5 A for 3 seconds although the contactor has switched). Check / replace the contactor.

Coiling protection contact open/defective. Determine/eliminate cause. Replace the engine.

Current asymmetry or low voltage or overvoltage. Check the mains connection.

Excessive power consumption. Check mechanics for resistance.

Check the mains connection.

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LED no.

6

Symbol Activity

1 x blinking

2 x blinking

3 x blinking

4 x blinking

7 glow

Meaning / measure

Exhaust thermostat open. Check/replace emission temperature/ thermostat. Perform maintenance on the burner.

Flame sensor reports burner fault. Clean and check the burner, ignition and fuel system.

RFID write-read electronics is defective - replace.

Fault water temperature sensor. Cable break (temperature below

-5°C, although the burner is on) or short circuit (temperature above 220°C for a longer period of time). The device switches off after approx. 10 seconds.

Service tasks due:

400h burner

600h pump

80000 gun switching operations

8

9 glow

1 x blinking

Softener level switch detects empty condition or the units on the tag of the softener bottle have been consumed.

5 hours of after-running time elapsed, burner is locked. Insert new softener bottle.

glow Detergent tank 2 is empty. Refill detergent (only HDS 12/18)

Note

Tag is an electronic component on the new square softener bottle. The tag is located behind the bottle label. The tag can be read and written on electronically (also see 6.10.3

"Functionality RFID").

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5.4.2

Template numerical value display

For the better distinguishability of numeric value displays in the service functions the template below can be placed on the LED displays of the control panel.

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5.4.3

Control panel, view from the inside

1 Service switch and dosing liquid softener

2 Control transformer

3 Transducer

T1

4 Fuse 2.0 AT for control transformer AT:

(6.644-052)

5 Terminal strip

6 Ground point

7 Supply Cord

8 Setting, water temperature

9 Programme switch

10 Control chip

11 Detergent dosing valve

12 Manometer

13 Exhaust temperature monitor

14 Cable comb

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15

5.4.4

Printed circuit board, control panel

1 Connection, level sensor detergent tank 1

2 Connection, level sensor detergent tank 2

3 Connection of level sensor for fuel tank

4 Connection of level sensor for liquid softener

5 Transducer connection

6 Connection flame sensor

7 Temperature sensor connection

8 DIP switch

9 Connection programme switch

10 Connection RFID

11 Service switch connection

DIP switch

By changing these settings the following functions can be activated:

DIP1 on:

One-phase device

DIP1 off:

Three-phase device

DIP2 on:

With flame sensor.

DIP2 off:

Ohne Flammfühler.

DIP3 off:

Standard setting. Must not be changed.

DIP4 on:

Dosing softener liquid for devices from 1000 l/h onwards

DIP4 off:

Dosing softener liquid for devices up to 1000 l/h

Note

Settings upon delivery in the replacement.

DIP 1 to 3:

Off

DIP 4:

On

Dosing RM 110/111 via RFID.

Adjust the settings after installation accordingly.

12 Connection water temperature setting

13 PCB motor distributor connection

14 Grounding connection control PCB

15 Control transformer T1 connection

16 Connection control transformer T2 (option)

17 Connection exhaust temperature monitor

18 Connection, lack of water fuse

19 Connection of solenoid valve for liquid softener

20 Connection without function

21 Connection without function

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1 Encoding pin

2 Recess for encoding pin

Plug coding

The plugs for the PCB connections are designed with encoding pins and their matching recesses in the PCB base so that only the matching plug can be attached to the respective connection.

5.4.5

Control panel with display indication (HDS 13/20 only)

1 Display

2 Programme switch position "Cold water operation"

3 Programme switch position "ECO mode*"

4 Programme switch position "Hot water / steam operation"

5 Programme switch

6 Setting, water temperature

7 Dosage valve for detergent

Note

In the "ECO mode“ the water temperature is maintained at

60? (+/- 9). Set water temperatures < 60°C are effective, settings <60? remain without any effect.

8 Dosing range detergent tank 1

9 Dosing range detergent tank 2

10 Programme switch position "Off"

11 Manometer

12 Filling level detergent tank 2

13 Filling level detergent tank 1

14 Filling level fuel

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6 Function

6.1

Operating displays

Note

Operating and maintenance displays are shown one after the other like in a slide show. Each picture for 3 seconds.

The fault displays remain until the device is switched off.

Display Explanation

Upper bar: Level fuel (8 stages)

Centre bar: Level detergent 1 (4 stages)

Lower bar: Level detergent 2 (4 stages)

In case of a cable break the relevant bar is not displayed.

Remark

Maintenance for pump due after 600 h.

Perform maintenance procedure.

Reset pump hours.

Maintenance for burner due after 400 h.

Perform maintenance procedure.

Reset burner hours.

Maintenance for accessory due after 80000 gun switching operations.

Perform maintenance procedure.

Reset gun switching operations.

6.2

Maintenance operating fluids

Display Explanation

Empty liquid softener.

Remark

Insert new bottle.

The bottle of the liquid softener is missing or the 5 hours afterrunning time have elapsed. The burner is locked.

Insert new bottle.

Oil refill container HP pump is empty.

Replenish oil.

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6.3

Setting liquid softener

Display Explanation

Set liquid softener dosing in accordance with the water hardness.

This display appears for 3s if the liquid softener setting is changed.

Remark

Attention service mode position. After the restart, the device will be in the service mode.

This display remains until another liquid softener setting is selected.

6.4

SB mode

Display Explanation

Insertion of money required.

Remark

Only with operation with SB board.

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6.5

Storage compartments

1 Cover, upper storage compartment

2 Storage operating instructions

3 Fastening screws upper storage compartment (4x)

4 Storage compartment top

5 Nameplate

6 Fastening screw control panel

7 Operator console

8 Storage replacement nozzles

9 Storage dirt grinder

10 Storage compartment bottom

11 Bottle holder for round liquid softener bottle or detergent bottle

12 Recessed grip

13 Bottle holder for two RFID liquid softener bottles

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6.6

Cover

Note

Open cover and dismantle if necessary

1 Screwdriver

2 Storage compartment top

3 Lock of appliance hood

4 Cover

 Push in the locking mechanism of the cover and turn it by 90°.

 Open the appliance hood.

1 Locating lug arrestor cable

2 Arrestor cable cover

 Unhook the arrestor cable from the locating lug.

1 Hinge cover (2x)

 Unclip hinges.

 Remove the appliance cover.

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6.7

View from the right, cover removed

1 Fuel line to the booster heater

2 Electric box, motor

3 Burner blower

4 Oil refill container pump

5 Motor

6 Handle, pressure and volume regulation

7 Pump head

8 Oil drain screw

9 Chassis

10 Plug detergent tank 2

11 Water hose to the pump

12 Casing water fine filter

13 SDS hose to the safety block

14 Splashboard, safety valve

15 Safety valve

16 Water shortage safeguard

17 Continuous heater

18 Service switch and setting liquid softener

19 Exhaust nozzle, on-demand heater

20 Burner, booster heater

21 Locking block cover

22 Cover, storage compartment top

22

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6.7.1

Revised device design (with filter before the pump and electronic ignition transformer)

1 Fuel line to the booster heater

2 Electric box, motor

3 Burner blower

4 Oil refill container pump

5 Motor

6 Handle, pressure and volume regulation

7 Pump head

8 Plug detergent tank 2

9 Filter

10 SDS hose to the safety block

11 Splashboard, safety valve

12 Safety valve

13 Water shortage safeguard

14 Continuous heater

15 Service switch and setting liquid softener

16 Burner, booster heater

17 Locking block cover

18 Cover, storage compartment top

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23

6.8

Service switch

1 Position marking

2 Service switch

Setting the water hardness

The setting of the liquid softener dosing is done in accordance with the local water hardness (ask your local water supply company or determine by means of a hardness tester).

Hardness tester 6.768-004.0

Water hardness Adjustments

very soft OFF position soft medium

Position 1

Position 2 hard very hard

Position 3

Position 4

° dH

up to 3.0

3,1 - 7,0

7,1 - 14,0

14,0 - 21,0

> 21,0

Note

When using RM 111, do not fall below position 3. Observe setting DIP 4 on the printed circuit board.

Service position

In the "Service" position the settings of the device can be edited by means of the service switch and the control panel.

From the "Service" position, the service switch can be turned a little further to the "SET" position. From this position, the switch returns to the "Service" position after releasing it. The "SET" position merely fulfils a pushbutton function.

Note

The setting options are described in Chapter 7.4 or 7.24

"Service functions with LED display".

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6.9

Fuel tank

1 Closure fuel tank

2 Seal fuel tank closure

3 Filler neck

1 Fuel filter

2 Level sensor for fuel tank

3 Fuel tank

1 Level sensor for fuel tank

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6.10 Liquid softener

6.10.1 Feed via tank (export variant)

The feed of the liquid softener takes place in accordance with the setting on the service switch. The setting is described under 6.8 "Service switch". The feed only takes place in the programme switch position "ECO" and "Warm water" at a set water temperature

≥ 50°C.

Bottle counter is increased by 1 after 2000 impulses.

The empty message takes place via the level sensor and is shown via an indicator lamp or display.

The burner operation is also possible without liquid softener. With hard water, however, malfunctions due to lime deposits must be expected.

Note

The dosing unit must not be switched off when using RM

111.

1 Lock

2 Washer

3 Liquid softener reservoir

1 Liquid softener reservoir

2 Level sensor

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6.10.2 Feed via RFID (Europe variant)

The feed of the liquid softener takes place in accordance with the setting on the service switch. The setting is described under 6.8 "Service switch". The feed only takes place in the programme switch position "ECO" and "Warm water" at a set water temperature

≥ 50°C.

Bottle counter is increased by 1 after 2000 impulses.

The empty message takes place via the level sensor in the liquid softener tank or via the write-read electronics in combination with the tag on the bottle. The liquid softener bottle must be inserted within 5 operating hours, otherwise the burner switches off for the protection against calcification and a corresponding malfunction appears.

The burner operation is only enabled again by inserting a new original liquid softener bottle. A bottle that has already been empty but refilled will not be accepted.

The bottle works with an internal vacuum. If the bottle is damaged or a hole is drilled into the bottle, it will drain within a short period of time.

During burner operation with hard water without liquid softener malfunctions due to lime deposits must be expected.

Note

The dosing unit must not be switched off when using RM

111.

RM 111 was specially developed for the protection against black water. In order that the corrosion protection works optimally, it is also added in cold water operation. RFID recognises RM 111 over the day on the bottle and doses accordingly.

1 Liquid softener reservoir

2 Level sensor

3 Dosing valve

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1 Liquid softener bottle

2 Screws

3 RFID - attachment

1 RFID - attachment

2 Bottle opener - insertion

1 Liquid softener bottle

2 Sealing

Note

The sealing is pierced upon inserting the bottle.

6.10.3 Functionality RFID

RFID (Radio Frequency Identification) stands for the identification by means of high frequency.

There is a transponder under the label on the softener bottle (microchip with antenna, also called tag).

The write-read electronics installed in the RFID attachment can read data from the tag and also write data to the tag.

The tag obtains the power supply from the high frequency field of the write-read electronics. The data transfer takes place by changes of the field intensity.

The write/read electronics query the type of detergent and saves the dosed units to the tag.

When the bottle is empty (after 2000 units) or when the level switch in the softener container reports empty, an afterrunning time of 5 hours is started. This after-running time is counted on the tag.

When the after-running time has elapsed or if the empty bottle is removed, the burner is switched off.

Once a bottle has been detected to be empty, it is blocked electronically and can no longer be used. Therefore, you must insert a new original softener bottle.

1 RFID - attachment

2 Write-read electronics

1 Antenna

2 Write-read electronics

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1 Label

2 RFID tag, behind the label

Note

Tag is an electronic component on the new square softener bottle. The tag is located behind the bottle label. The tag can be read and written on electronically.

6.11 Swimmer tank

Float tank

The float container is integrated in the chassis. It is located on the right, under the liquid softener reservoir.

The swimmer reservoir supplies the pump evenly with water. It is also used to separate the water inlet and the pump and prevents detergent from entering the water supply line in case of damage.

Swimmer valve

Water flows into the float container through the opened float valve.

When the water level is rising, the float ball rises and closes the float valve.

The float valve is adjusted permanently and must not be readjusted.

1 Water inlet

2 Swimmer valve

3 Swimmer ball

4 Float tank

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6.12 Detergent Tank

6.12.1 Detergent tank 1

Detergent tank 1 (volume 10l)

The detergent tank 1 is located in the rear part of the chassis.

Suction hose

The plug with the connection of the suction hose is located between the booster heater and the lower storage compartment or the hose reel.

Level sensor (option)

The level sensor contains a reed switch that is operated by means of a magnet in the float.

1 Detergent tank 1

2 Lock

1 Stopper

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1 Level sensor (option)

6.12.2 Detergent tank 2

Detergent tank 2 (volume 20l)

The detergent tank 2 is located in the right part of the chassis.

Suction hose

The plug with the connection of the suction hose is located above the right transport wheel. A detergent filter is attached at the end of the suction hose

Level sensor

The level sensor contains a reed switch that is operated by means of a magnet in the float.

1 Detergent tank 2

2 Lock

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1 Stopper

2 Cleaning agent filter

3 Detergent tank 2

1 Level sensor (option)

2 Stopper

3 Detergent tank 2

4 Float

6.13 Detergent dosing valve

Detergent dosing valve with automatic clear rinsing in zero position

1 Water

2 Detergent tank 1

3 Detergent tank 2

4 Pump

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33

6.14 Motor (air-cooled)

1 Electronics system

2 Burner blower

3 Fuel pump

4 Solenoid valve

5 Blower, motor cooling

6 Engine mount, left

7 Engine mount, right

8 Pump head

9 Oil level sensor

10 Oil fill container

11 Handle, pressure and volume regulation

12 Cover

1 Cover

2 Oil level sensor

3 Oil fill container

Oil drain screw

The oil drain screw is located on the bottom of the pump casing.

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6.14.1 Motor (air-cooled)

1 Connecting cable, motor

2 Fan wheel

3 Stator

4 Motor bearing, rear (B bearing)

5 Motor shaft

6 Rotor

7 Casing

8 Shaft seal ring

9 Motor bearing, front (A bearing)

10 Swash plate with axial ball bearing

11 Screw

12 Oil drain screw

13 Detergent suck in

14 Suction side

15 Suction valve

16 Piston

17 High pressure seal

18 Low pressure seal

19 Oil seal

20 Piston spring

21 Retaining plate for piston spring

22 Pressure valve

23 Valve screw

24 Oil level sensor

25 Oil fill container

1 Bushing

2 Washer, plastic

3 High pressure seal

4 Low pressure seal

5 Washer, brass

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35

6.15 Electrical box, air-cooled motor

1 Ground point

2 Terminal strip

3 Connection to earth, motor

4 Engine contactor

5 Anti-interference filter

6 Board, motor distributor

7 Connection pressure switch ON

8 Connection pressure switch OFF

9 Oil level sensor connection

K1

10 Connection of coiling protection contact

11 Connection printed circuit board, operating panel

12 Connection fuel solenoid valve

13 Connection motor protection

14 Connection is not used

15 Cable comb

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English 5.906-432.0 Rev. 00 (06/15)

6.16 Engine (water-cooled)

1 Electronics system

2 Burner blower

3 Cooling coil

4 Fuel pump

5 Solenoid valve

6 Engine mount, left

7 Engine mount, right

8 Pump head

9 Oil level sensor

10 Oil fill container

11 Handle, pressure and volume regulation

12 Cover

Oil drain screw

The oil drain screw is located on the bottom of the pump casing.

1 Cover

2 Oil level sensor

3 Oil fill container

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6.16.1 Engine (water-cooled)

1 Connecting cable, motor

2 Cooling coil

3 Stator

4 Motor bearing, rear (B bearing)

5 Motor shaft

6 Rotor

7 Casing

8 Shaft seal ring

9 Motor bearing, front (A bearing)

10 Screw

11 Swash plate

12 Slide shoe

13 Oil drain screw

14 Detergent suck in

15 Suction side

16 Suction valve (green with HDS 13/20)

17 Piston

18 High pressure seal

19 Low pressure seal

20 Oil seal

21 Piston spring

22 Retaining plate for piston spring

23 Pressure valve

24 Valve screw

25 Oil level sensor

26 Oil fill container

1 Bushing

2 High pressure seal

3 Low pressure seal

4 Washer, plastic

5 Washer, brass

38

English 5.906-432.0 Rev. 00 (06/15)

6.16.2 Electrical box, water-cooled engine

1 Ground point

2 Connection to earth, motor

3 Engine contactor

4 Anti-interference filter

5 Board motor distributor

6 Connection pressure switch ON

7 Connection pressure switch OFF

8 Oil level sensor connection

9 Connection printed circuit board, operating panel

10 Connection of coiling protection contact

11 Connection fuel solenoid valve

12 Connection motor protection

13 Connection is not used

14 Cable comb

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39

6.17 Pump

1 Handle, pressure and volume regulation

2 Screwed sealing plug

3 Screws pump head

4 Pump head

5 Suction jumper

6 Screwed sealing plug

7 Water pipes

8 Safety bracket, pressure switch OFF

9 Pressure switch OFF

10 SDS hose to the safety block

11 Pressure switch ON

12 Safety bracket, pressure switch ON

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6.17.1 Revised version with filter before the pump

1 Handle, pressure and volume regulation

2 Screwed sealing plug

3 Screws pump head

4 Pump head

5 Suction jumper

6 Screwed sealing plug

7 Filter

8 Safety bracket, pressure switch OFF

9 Pressure switch OFF

10 SDS hose to the safety block

11 Pressure switch ON

12 Safety bracket, pressure switch ON

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6.18 Safety block

1 Connecting cable, reed switch

2 Screwed sealing plug

3 Clamping bracket

4 Reed switch

5 High pressure pipe to the on-demand heater

6 Connection hose pressure gauge

7 Safety block

8 SDS hose

9 Adjustment screw, safety valve

10 Valve ball

1 Connection hose pressure gauge

2 Valve ball

3 Safety valve

4 Safety block

5 Sieve

6 SDS hose

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6.19 Safety block (water shortage safeguard old)

1 Connecting cable, reed switch

2 Screwed sealing plug

3 Spring

4 Clamping bracket

5 Reed switch

6 Magnetic piston

7 Holes

8 Water inlet, from the high pressure pump

9 High pressure pipe to the on-demand heater

10 Mould part

11 Water outlet

12 Adjusting screw

13 Spring, safety valve

14 Casing

15 Spring plate

16 Valve ball

17 Valve seat

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6.19.1 Water shortage safeguard as cartridge

Note

The cartridge replaces the previous design with piston and spring.

6.19.2 Safety block (water shortage safeguard new)

Note

Recommended installation direction: The lower drilled hole of the cartridge points towards the high-pressure pipe to the booster heater.

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English 5.906-432.0 Rev. 00 (06/15)

6.19.3 Function water shortage safeguard and dry-run protection

The lack of water fuse prevents the burner from switching on in case of missing or insufficient water volume and thus protects the on-demand heater from overheating.

With an opened gun and a sufficient water flow the solenoid is lifted against the force of gravity in the cartridge.

The solenoid piston closes the contact of the reed switch.

This opens the fuel solenoid valve and the burner ignites.

The sieve in the water supply of the safety block prevents the contamination of the lack of water fuse.

The lack of water fuse is a safety component and therefore its locking screw is sealed.

The information regarding insufficient water volumes is sent directly to the control PCB.

There, this message is evaluated as

– lack of water fuse (shut-off of burner, see above) and as

Dry-run protection for the pump (switch-off device).

The lack of water fuse functions immediately.

It switches the burner off immediately in case of insufficient water volume and back on after the water level has been replenished.

The dry run protection is intitiated when the lack of water fuse signals insufficient water volume for 2 minutes.

The appliance shuts off with a fault message and locks up.

Only by switching the device off and back on via the main switch, it can be taken into operation again.

As the dry-run protection damages the pump in the long run, there must always be a sufficient water supply.

6.19.4 Function of safety valve

The safety valve guides the entire flow rate of the pump to the float container if the pressure switch or the overflow valve is defective and thus protects the device and accessories from inadmissibly high overpressure.

If the gun is open, the safety valve is closed and the entire flow volume of the pump is transferred to the gun at operating pressure.

If the pressure in the high pressure system rises by approx. 20 bar above the permissible operating pressure, the valve ball is lifted off the valve seat and part of the flow volume flows into the swimmer reservoir.

The opening pressure of the safety valve is adjusted with the adjustment screw.

Rotation to the right increases the opening pressure, rotation to the left decreases the opening pressure.

The safety valve is a safety component and therefore its adjustment screw is sealed.

Note

The safety valve is adjusted via the pressure increase in the system with the burner turned on, so that it limits the pressure increase to the max. permissible value (see

Specifciations) with the gun closed.

Then seal the settings.

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6.20 Burner blower with fuel pump

1 Return

2 Pressure line

3 Screw

4 Blower lid

5 Fuel line

6 Setting fuel pressure

7 Fuel pump

8 Continuous heater

9 Connecting cable solenoid valve

10 Suction opening, burner blower

11 Solenoid valve for fuel

12 Fastening screw fuel pump

13 Blower lid

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1 Rubber collar

2 Lock

3 Air door, air volume adjustment

4 Stop screw

5 Burner blower

1 Solenoid valve

2 Coupling unit

3 Connection pressure line

4 Setting fuel pressure

5 Fuel pump

6 Fastening screw

Uninstall fuel pump

Detach pressure line.

Unscrew locking screws.

Remove the fuel pump.

Fuel pump

The fuel pump is connected directly to the motor shaft via the coupling piece and the blower wheel. It also feeds fuel from the tank and back via the return during cold water operation. This lubricates the toothed wheel pump.

During warm water operation, the installed solenoid valve and part of the fuel reaches the burner through the fuel nozzle and is ignited there.

The fuel pressure is adjusted via the central setting screw.

During dry runs, the fuel pump will block.

The coupling piece serves as a nominal breaking point.

1 Fastening screws blower cover

2 Fastening screw blower wheel

3 Coupling unit

4 Blower wheel

5 Fuel pump

Burner blower

The blower supplies the burner with combustion air.

The air flap is used to adjust the air value to optimised combustion values.

The blower wheel is mounted to the motor shaft by means of 2 feather keys.

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6.21 Booster heater (with ignition transformer)

1 Capillary exhaust temperature monitor

2 Protective conductor

3 Cover

4 Screws burner

5 Locking screw for appliance hood

6 Sight glass, ignition monitoring (option)

7 Burner

8 Ignition cable

9 Connection cable ignition transformer

10 Ignition transformer

11 Screw burner cover

12 Fuel line

13 Heating coil with type plate

14 Exhaust temperature sensor

15 Exhaust nozzle

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6.22 Booster heater (with ignition transformer new)

1 Electronic ignition transformer

2 Fastening screw of ignition transformer

3 Screws for burner cover (3 x)

4 Sight glass, ignition monitoring (option)

5 Burner cover

6 Fuel line

6.22.1 Type plate of heating coil

The type plate of the heating coil can be read through the exhaust stack.

7 Exhaust nozzle, on-demand heater

8 Type plate of heating coil

9 Exhaust temperature sensor

10 Connection for air pressure measurement

11 Capillary exhaust temperature monitor

12 Protective conductor

1 Year of manufacture

2 Specifications

3 Part number of heating coil

4 Pressure test passed

5 Continuous plant number

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6.22.2 Ignition transformer

Various ignition transformers are installed in the devices.

Electronic ignition transformer

The integrated electronic ignition transformer (see picture above) is meanwhile used for all devices, except the devices for special voltages. The electronic ignition transformer is installed directly on the burner and secured with a screw that is accessible from the top. Ignition cables are not required.

Ignition transformer of conventional type with ignition cable

6.22.3 Flame sensor with holder on the burner

With older devices or devices for special voltages the conventional ignition transformers are still used.

1 Looking glass

2 Light sensor

3 Flame sensor

1 Screw

2 Holder flame sensor

3 Flame sensor

4 Marking

5 Lock

50

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6.22.4 Sectional view booster heater

12

11

10

9

8

1 Ignition electrodes

2 Fuel nozzle

3 Pressure plate

4 Flame ring

5 Burning chamber

6 Boiler floor

7 Boiler input

8 Air supply from burner blower

9 Boiler exterior, double-walled

10 Heating coil spiral, exterior

11 Heating coil spiral, interior

12 Exhaust nozzle, on-demand heater

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51

6

7

1

2

3

4

5

Mode of operation

The water from the high pressure pump enters the interior heating coil spiral, is heated while flowing through and exits to the bottom from the heating coil spiral.

The fuel is vaporised by the fuel nozzle and ignited by the spark of the ignition electrodes.

The combustion air from the blower first flows through the double-walled boiler exterior toward the top, then it flows downward with the flame and is emitted as exhaust through the exhaust stack toward the top into the atmosphere.

The boiler floor is made of fire-resistant insulating concrete. It prevents a radiation of the heat and is used to reroute the flames.

The adjustment of the burner to good exhaust values is achieved via the air flap on the blower (air volume) and with the adjustment screw on the fuel pump (fuel pressure).

The temperature increase with the full water volume is 60-

65 K independent of the device.

If the water volume is reduced via the pressure and volume control, the water can be heated to approx. 100 °C; if you use the steam nozzle, up to 155 °C.

An optimal burner performance is only possible if the heating coil is neither full of soot nor other deposits.

Furthermore, the spark electrodes, the amount of fuel and the amount of air must be adjusted properly.

Steam operation

The following preparations must be made for steam operation:

Install steam nozzle

Set the operating pressure on the pressure and volume

– control on the pump to the lowest value

Set the desired steam temperature at the operating panel

Note

As per pressure device guidelines, the operating pressure inside the appliance must be less than 32 bars for steam operation.

This is ensured by reducing the operating pressure on the pressure and volume control and by using the supplied steam nozzle.

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6.23 Burner

1 Looking glass

2 Connection pressure line

3 Connection ignition electrode

4 Connection for air pressure measurement

5 Burner cover

1 Ignition electrode

2 Fuel nozzle

3 Pressure plate

1 Ignition electrode

2 Fuel nozzle

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53

6.24 Burner

1 Ignition electrodes

2 Fuel nozzle holder

3 Fuel nozzle

4 Spray angle 45° or 60°, depending on the type of appliance

5 Screw

6 Burner cover

Burner

There is a strong spark created between the two ignition electrodes to ensure that the injected fuel will ignite.

The necessary ignition voltage is generated by the ignition transformer.

The exact adherence to the adjustment dimensions is a basic requirement for the proper function of the burner, for good exhaust values and the long idle time of the ignition electrodes.

There is always a ignition spark between the two ignition electrodes, during cold and hot water operation (continuous ignition).

This is a safety measure, so that injected fuel will be ignited in any case and cannot accumulate unburned in the on-demand heater (deflagration hazard).

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6.25 Output, booster heater

1 Floor plate

2 Output of flow-type heater

3 Temperature sensor water

4 Clamping bracket

5 Chassis

6 Connecting cable temperature sensor

7 Input of flow-type heater

8 Bottom booster heater

9 Pressure line of the safety block

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6.26 Hand spraygun

1 Lock trigger gun

2 Casing shell

3 Hand lever

4 High pressure hose

5 Hose guide

6 Safety clip

7 Needle bearing

8 Coupling high-pressure hose/trigger gun

9 O ring

10 Node piece

Function

When the manual lever is actuated, the valve in the node piece opens and the water can flow from the hose through the gun into the spray lance.

Note

The node piece cannot be repaired and must be replaced as a complete unit.

The date of manufacture is imprinted on the node piece. It is composed of the month (letters A to L for January through December) and year (1-digit number 1 for 2011, 2 for 2012, etc.).

Example: H1 = August 2011

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6.27 Pressure and volume regulation

1 Connection trigger gun

2 Connecting pin

3 Ceramic disc on gun side

4 Ceramic disc on spray pipe side

5 Casing of rotating regulator

6 Handle of rotary regulator

7 Spray lance connection

The pressure and volume regulation is designed as a rotary regulator between the trigger gun and the spray lance.

There are two ceramic discs within the high pressure channel.

A ceramic disc is rigidly connected with the connection of the trigger gun. The other ceramic disc is connected to the rotating regulator and therefore adjustable. Offset holes in the ceramic discs can adjust the flow volume and the pressure when rotating the discs.

This illustration shows the two overlapping ceramic discs and the water flow (blue) with different opening angles

(from 0° to 90°).

With the minimal setting, the water flows through a small hose in the middle of the ceramic discs.

Note

The rotary regulator cannot be repaired and must be replaced as a complete unit.

Water flow with opening angle 0° - 90°

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6.28 Functional diagram of pressure water operation (water-cooled motor)

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1 Detergent tank 1, volume 10 l

2 Detergent suction hose with filter

3 Level sensor, detergent tank 1 (option)

4 Detergent suction hose with filter

5 Level sensor, detergent tank 2 (option)

6 Detergent tank 2, volume 20 l

7 Dosage valve for detergent

8 Suction hose for detergent

9 Detergent check valve

10 Pressure switch ON

11 Pressure and volume regulation

12 Oil tank

13 Water connection

14 Water supply hose

15 Fuel filter

16 Fuel tank

17 Level sensor for fuel tank

18 Fuel suction hose

19 Fuel return line

20 Fuel pump

21 Solenoid valve, fuel pump

22 Continuous heater

23 Fuel pressure line

24 Ignition electrodes

25 Fuel nozzle

26 Exhaust nozzle

27 Exhaust temperature sensor

28 Setting, water temperature

29 Printed circuit board (PCB)

30 Temperature sensor

31 Heating coil

32 Air flap

33 Water fine filter

34 Burner blower

35 Motor casing with cooling coil

36 Pressure switch OFF

37 Safety block with water shortage safeguard and safety valve

38 Manometer

39 Pressure pipe

40 Solenoid valve liquid softener

41 Level sensor liquid softener

42 Liquid softener reservoir

43 Swimmer valve

44 Float tank

45 High pressure nozzle

46 Spray lance

47 Trigger gun

48 High pressure hose

49 Rotary regulator for pressure and quantity regulation

50 Rinse line

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6.29 Functional diagram vacuuming operation

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English 5.906-432.0 Rev. 00 (06/15)

1 Detergent tank 1

2 Detergent suction hose with filter

3 Level sensor, detergent tank 1

4 Detergent suction hose with filter

5 Level sensor, detergent tank 2

6 Detergent tank 2

7 Suction hose with filter and check valve

8 Open container

9 Dosage valve for detergent

10 Suction hose for detergent

11 Detergent check valve

12 Pressure switch ON

13 Pressure and volume regulation

14 Oil tank

15 Fuel filter

16 Fuel tank

17 Level sensor for fuel tank

18 Fuel suction hose

19 Fuel return line

20 Fuel pump

21 Solenoid valve, fuel pump

22 Continuous heater

23 Fuel pressure line

24 Ignition electrodes

25 Fuel nozzle

26 Exhaust nozzle

27 Exhaust temperature sensor

28 Setting, water temperature

29 Printed circuit board (PCB)

30 Temperature sensor

31 Heating coil

32 Air flap

33 Water fine filter

34 Burner blower

35 Motor casing with cooling coil

36 Pressure switch OFF

37 Safety block with water shortage safeguard and safety valve

38 Manometer

39 Pressure pipe

40 Solenoid valve liquid softener

41 Level sensor liquid softener

42 Liquid softener reservoir

43 Swimmer valve

44 Float tank

45 High pressure nozzle

46 Spray lance

47 Trigger gun

48 High pressure hose

49 Rotary regulator for pressure and quantity regulation

50 Rinse line

51 Slot (plug) vacuuming operations

52 Hose to the fine filter

53 Hose from the motor cooling to the pump

Note

During vacuuming operations, the float container must be bypassed.

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6.30 Vacuuming operations

Note

If the appliance is used for vacuuming, the rinse hose of the detergent dosing valve must be plugged onto the respective plug to prevent erroneous air suction.

Furthermore, the fine filter must be uninstalled and the water supply hose must be connected directly to the high pressure pump.

1 Slot vacuum operation (plug)

2 Slot pressure water operation (connection)

Note

The conversion to vacuuming operations requires bypassing of the float container.

 Remove the liquid softener bottle and turn it over immediately to avoid spills.

 Open the device hood.

 Unscrew the water filter from the high-pressure pump inlet.

 Unscrew the water hose from the float valve and screw it onto the high-pressure pump inlet.

 Pull the rinse hose off the connection on the float container output and plug it onto the stopper.

CAUTION

When replacing the liquid softener reservoir, make sure that the cables from the solenoid valve and level sensor are not crushed.

 Place the liquid softener tank onto the swimmer reservoir.

Until the pump has sucked in water

 Set the pressure/quantity regulation at the pump unit to maximum quantity.

 Close the dosing valve for the detergent.

Note

The suction hose with filter (accessory) must have a minimum diameter of 3/4".

The suction height is max. 0.5 m.

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6.31 Pressure and volume regulation

1 Threaded pin, max. pressure setting

2 Locknut threaded pin

3 Semiload spindle

4 Half-load stop sleeve

5 Pressure spring

6 Overflow piston

7 High pressure valve (3x)

8 Pump piston (3x)

9 Suction valve (3x)

10 Detergent infeed with backflow valve

11 Suction jumper with water connection

12 Sleeve with throttle bore

13 Pressure switch "OFF"

14 Valve seat

15 Pressure holding valve

16 Pressure switch "ON"

17 Locknut of semiload stop sleeve

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6.31.1 Function pressure and volume regulation

Manually with a pressure regulator on the high pressure pump

The pressure and volume regulation via the handle on the high pressure pump is used to relieve the motor with mostly partial load operation.

Turning the spindle anticlockwise lowers the pretension of the pressure spring.

This will lift the overflow piston with a lower pressure from the valve seat and part of the flowing volume runs to the suction chamber via the sleeve with the throttle bore.

The pump runs at reduced pressure.

Depending on the spindle setting, the pressure and the water volume change.

With the rotary regulator on the gun

The pressure and volume regulation via the rotary regulator on the gun should only be used during occasional partial load operation.

When the pressure is reduced via the rotary regulator, the manual pressure and volume regulation on the pump must always be opened all the way (direction "+" on the handle); otherwise, the appliance will shut off prematurely.

If the rotary regulator is partially closed, the pressure in the system will increase.

This will lift the piston off the valve seat so that a part of the flowing volume flows back to the suction chamber via the return.

The pump continues to run at high pressure.

Depending on the setting of the rotary regulator on the gun, the pressure and the water volume change.

Gun closed

If the gun is closed completely, the piston will open all the way and the entire flow volume of the pump flows to the suction chamber via the throttle bore.

The dynamic pressure building up through the throttle bore of the sleeve in the return actuates the pressure switch which will in turn shut off the appliance.

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6.32 Functional description of pressure switch

6.32.1 Appliance is switched off

1 2 3 4

5

11

8

9

10

0 Volt

1 High pressure outlet (without pressure)

2 Manometer (without pressure)

3 Pressure retaining valve (closed)

4 Pump stands still

5 Rotary knob

6 Overflow valve (closed)

7 Reduction bore

8 Pressure switch "OFF" (closed)

9 Water inlet

10 Motor contactors (K1) (open)

11 Pressure switch "ON" (closed)

Note

The shown functions of the preessure switches and motor contactor are for understanding purposes only.

In reality, the information from the two pressure switches is transferred directly to the control electronics, which in turn controls the motor contactor.

When the appliance is switched off and the gun is open, the pressure is taken from the system and it is without voltage.

Both pressure switches as well as the overflow valve and the pressure retaining valve closed.

The motor contactors are open.

6

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6.32.2 The appliance is switched on and the gun is open

1 2 3 4

5

11

8

9

10

24 Volt

1 High pressure outlet, working pressure

2 Manometer, working pressure

3 Pressure retaining valve (open)

4 Pump is running

5 Rotary knob

6 Overflow valve (closed)

7 Reduction bore

8 Pressure switch "OFF" (closed)

9 Water inlet

10 Motor contactors (K1) (closed)

11 Pressure switch "ON" (open)

Note

The shown functions of the preessure switches and motor contactor are for understanding purposes only.

In reality, the information from the two pressure switches is transferred directly to the control electronics, which in turn controls the motor contactor.

After switching on the appliance and with the gun open, the contactor will be actuated and closes the contacts.

This will start the motor and the pump will build up the working pressure.

Open the pressure retaining valve and the pressure switch

"ON", the overflow valve and the pressure switch "OFF" remain closed.

Due to the closed pressure swtich, the motor contactors also remain closed.

6

7

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6.32.3 Gun is closed

1 2 3 4

5

6

7

11

8

9

10

24 Volt

1 High pressure outlet, shut-off pressure

2 Manometer, shut-off pressure

3 Pressure retaining valve (closed)

4 Pump stands still

5 Rotary knob

6 Overflow valve

7 Reduction bore

8 Pressure switch "OFF" (open)

9 Water inlet

10 Motor contactors (K1) (open)

11 Pressure switch "ON" (open)

Note

The shown functions of the preessure switches and motor contactor are for understanding purposes only.

In reality, the information from the two pressure switches is transferred directly to the control electronics, which in turn controls the motor contactor.

There will be brief overpressure in the system when the gun is closed.

This will open the overflow valve and the entire flow volume streams into the suction chamber of the pump through the throttle bore.

As soon as the overflow valve opens, the pressure retaining valve closes and the shut-off pressure is locked between the gun and the pressure retaining valve.

Due to the locked in switch-off pressure, the pressure switch "ON" remains open.

There will be a pressure backup in front of the reduction bore, which opens the pressure switch "OFF" at about 10 bar and thus interrupts the control circuit.

The motor contactors open and the motor is shut off.

As soon as the motor has stopped, the overflow valve will close and so will the pressure switch "OFF".

However, the motor contactors will remain open as the control circuit is still interrupted by the open pressure switches "ON".

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6.32.4 The gun is reopened when the appliance is switched on

1 2 3 4

5

11

10

24 Volt

1 High pressure outlet (without pressure)

2 Manometer (without pressure)

3 Pressure retaining valve (closed)

4 Pump is running

5 Rotary knob

6 Overflow valve (closed)

7 Reduction bore

8 Pressure switch "OFF" (closed)

9 Water inlet

10 Motor contactors (K1) (closed)

11 Pressure switch "ON" (closed)

Note

The shown functions of the preessure switches and motor contactor are for understanding purposes only.

In reality, the information from the two pressure switches is transferred directly to the control electronics, which in turn controls the motor contactor.

As soon as the gun is opened, the pressure that is locked in between the pressure retaining valve and the gun escapes.

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The pressure switch "ON" closes, which in turn will close the control circuit.

The motor contactor is actuated, closes the contacts, the motor starts up and the pump rebuilds the working pressure.

8

9

6

7

7 Basic settings and service procedures

7.1

Remove the hose drum

7.1.1

Uninstall / install high-pressure hose

1 Casing shell, hose reel

2 Screws

 Release pressure.

 Unwind the HP hose from the hose reel.

 Unscrew the screws.

 Remove the casing shell.

1 Clip

 Lever out the clamp.

 Pull out the hose.

 Take a new hose through the hose guide and the deflection pulley.

 Slide the hose into the union piece of the hose reel and secure by means of the clamp.

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7.1.2

Renew O-rings axle, hose reel

7.1.1Uninstall / install high-pressure hose

1 Screw

2 Casing shell, hose reel

 Loosen screws.

 Turn the hose reel.

1 Casing shell, hose reel

2 Screws

 Unscrew the screws.

1 Screws

2 Bearing block

 Unscrew the screws.

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1 Casing shell, hose reel

2 Bearing block

3 Crank

 Remove the front part of the hose reel.

1 Hose drum

2 Safety ring

3 Pipeline with axle

4 Node piece

5 Pliers

 Remove the retaining ring.

 Remove the knot.

 Remove the rear part of the hose reel.

1 Rear bearing block

2 Screws

3 O rings

4 Pipeline with axle

 Remove O-rings.

Installation information

Replace the O-rings.

Grease the O-rings.

Grease 6.288-088.0

Note

Check axle and connection piece for signs of wear.

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7.1.3

Uninstall / install pipeline with axle

7.1.2Renew O-rings axle, hose reel

1 Rear bearing block

2 Screws

3 O rings

4 Pipeline with axle

Note

Align the pipeline with axle at a right angle to the rear bearing block.

1 Pipeline with axle

2 Screw connection

3 Wrench

 Disconnect screw connection.

 Remove pipeline with axle.

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7.2

Uninstall / install pressure gauge

1 Manometer

 Unscrew the screws on the control panel.

 Manually push in the left clip.

1 Manometer

2 Screwdriver

 Push in the right clip by means of a screwdriver.

1 Screw connection

2 Manometer

3 Clips

 Remove the pressure gauge.

 Disconnect screw connection.

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7.3

Adjust safety valve

1 Turning handle

 Screw in the twist grip of the pressure and volume regulation on the pump all the way to the stop (towards

"+").

 Pull off the rotary handle.

1 Adjusting screw

2 Counter-nut

 Loosen counter-nut.

 Completely screw in the adjustment screw.

 Install the stop valve on the high-pressure connection.

 Turning on the appliance.

1 Safety block

2 Safety valve

3 Adjustment screw, safety valve

 Slowly close the stop valve.

 Observe at what pressure water is tripping.

(Nominal value: 20 bar above max. working pressure, see technical data)

 If the pressure is too high, turn the adjustment screw on the safety valve to the left (relax the pressure spring).

 If the pressure is too low, turn the adjustment screw on the safety valve to the right (tension the pressure spring).

 Seal the adjustment screw.

 Adjust the pressure/ volume regulation.

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7.4

Service functions with LED display

1 Setting, water temperature

Service mode

If the service switch is in the "Service" position (screwdriver symbol) upon switching on the device, the service mode of the device is activated (pump is not running).

Selection of the service functions

The available service functions are selected via the water temperature setting.

Example: 30°C is equivalent to the function „ON30MIN“.

For some functions the function selection must already be set upon switching on the device and the service switch must be kept in the "SET" position for 2-3 seconds.

Example: RFIDONOFF is called up with the setting 45 ?

(40/-- °C) + "SET" upon switch-on.

1 Control LED 0, pump (red)

2 Control LED 1, rotation direction (red)

3 Control LED 2, operation (green)

4 Control LED 3, fuel (yellow)

5 Control LED 4, detergent tank 1 (yellow)

6 Control LED 5, motor (red)

7 Control LED 6, burner (red)

8 Control LED 7, service (orange)

9 Control LED 8, liquid softener (yellow)

10 Control LED 9, detergent tank 2 (yellow)

Changing the settings

The display of the current settings takes place via the 10 indicator LEDs on the control panel. By means of the pushbutton function of the service switch (continue to turn to

"SET" position, switch snaps back to the "Service" position) the settings can be changed. The change is also displayed via the control LEDS.

1 Service position

2 Service switch

Exiting the service mode

 Turn off the appliance.

 Set the service switch to the appropriate water hardness level or "OFF".

 Turn on the appliance.

Note

For the device versions with a water temperature of max.

80 °C or 60 °C, the temperature settings are indicated in parenthesis (80/60 °C)

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7.5

Set up the switching off process

Function Adjustments

LED indicator

30 °C

(30/30 °C)

ON30MIN

Behaviour of device after

30 minutes of continuous operation.

The setting will be saved.

35 °C

(34/32 °C)

OFF30MIN

Behaviour of device after

30 minutes of continuous standby operation.

The setting will be saved.

7.6

Set up the leakage behaviour

Function Adjustments

LED indicator

40 °C

(37/34 °C)

LECKAGEONOFF

Behaviour of the device after 10 short startups of the pump (run time of the pump under 2 seconds).

The setting will be saved.

Important

The device switches off after 30 minutes of continuous operation.

The device does not switch off after 30 minutes of continuous operation (factory setting).

The device switches off after 30 minutes in the standby mode.

The device does not switch off after 30 minutes in the standby mode (factory setting).

Important

Device switches off after 10 short startups of the pump (factory setting).

The device does not switch off after 10 short startups of the pump.

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7.7

Brightness value of the flame sensor

Function Adjustments

LED indicator

45 °C

(40/35 °C)

LDRTEST

Display of the brightness value measured by the flame sensor.

The value is displayed digit by digit by the LEDs, with every LED standing for a numeric value from 0

- 9 in accordance with its number.

The display is repeated after a pause.

Example:

A brightness value of

1016 is measured. The

LEDs light up in the following order:

- PAUSE -

Important

Digit value "0"

Digit value "1"

Digit value "2"

Digit value "3"

Digit value "4"

Digit value "5"

Digit value "6"

Digit value "7"

Digit value "8"

Digit value "9"

A value above 471 is rated as "dark".

A value up to 471 is rated as "bright".

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7.8

RFID query

Function

45 °C

+

„SET“

(40/-- °C

+

„SET“)

RFIDONOFF

Information to the printed circuit board whether the device is equipped with feed via RFID.

Adjustments

LED indicator

7.9

Testing the temperature sensor

Function Adjustments

LED indicator

50 °C

(43/36 °C)

NTCTEST

Display of the water temperature measured by the temperature sensor.

The value is shown digit by digit by the LEDs.

Example:

A temperature of 27°C is measured.

The LEDs light up in the following order:

- PAUSE -

...

Note

At a temperature below 0?, "0" is displayed.

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Important

Device with RFID Menu access:

Select 45°C

Switch off device. Hold

SET. Turn on the ma-

Device without

RFID chine. Release SET.

Select settings with

SET.

Check the setting when replacing the printed circuit board.

Important

Digit value "0"

Digit value "1"

Digit value "2"

Digit value "3"

Digit value "4"

Digit value "6"

...

7.10 Testing the water temperature setting and the programme switch

Function Adjustments

LED indicator Important

30 °C

(30/30 °C)

55 °C

(46/38 °C)

ENCPROGTEST

With this function, the programme switch and the controller for the water temperature setting can be tested.

Upon switch-on, all 10

LEDs are on.

By operating the pushbutton function of the service switch (continue to turn to "SET" position and release) and turning the water temperature setting to 30°C, the test is started.

If the water temperature setting is gradually increased, the LED display changes as shown to the right.

35 °C

(34/32 °C)

40 °C

(37/34 °C)

45 °C

(40/35 °C)

50 °C

(43/36 °C)

55 °C

(46/38 °C)

60 °C

(48/40 °C)

65 °C

(50/42 °C)

70 °C

(52/44 °C)

75 °C

(55/45 °C)

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55 °C

(46/38 °C)

Function Adjustments

LED indicator

95 °C

(66/52 °C)

100 °C

(68/54 °C)

112 °C

(70/55 °C)

125 °C

(74/56 °C)

Important

80 °C

(58/46 °C)

85 °C

(60/48 °C)

90 °C

(63/50 °C)

140 °C

(77/58 °C)

155 °C

(80/60 °C)

The temperature setting must finally be set back to 55 ? (46/38 °C).

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Function

55 °C

(46/38 °C)

ENCPROGTEST

By operating the pushbutton function of the service switch (continue to turn to

"SET" position and release) again, the test for the programme switch is started.

The LED display depends on the position of the programme switch now.

Adjustments

LED indicator

Note

To exit the ENCPROGTEST function, switch off the device.

Important

Programme switch position "cold"

Programme switch position "eco"

Programme switch position "warm"

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7.11 Testing the service switch

Function Adjustments

LED indicator

60 °C

(48/40 °C)

ENCDGTTEST

Service switch setting display.

Important

Service switch position "OFF"

Service switch position "1"

Service switch position "2"

Service switch position "3"

Service switch position "4"

Service switch position "Service"

Service switch position "SET"

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7.12 Testing the sensor

Function

65 °C

(50/42 °C)

INPUTTEST

Use this function to display the status of the different sensors.

Every LED displays the status of a certain sensor.

Therefore, several LEDs can be on at the same time.

Example:

Adjustments

LED indicator

This display means:

Low oil sensor open

(too little oil).

"ON" pressure switch

– not actuated.

Thermal motor protection switch closed.

Reed switch "fuel tank"

– closed (tank not empty).

Reed switch "detergent tank 1" open

(tank empty).

Reed switch "water shortage safeguard" closed.

"OFF" pressure switch not actuated.

Exhaust gas thermostat open (burner off).

Reed switch "liquid softener tank" closed

(float up).

Reed switch "detergent tank 2" open

(float up).

Important

Lack of oil fuse closed (float up).

"ON" pressure switch open (pressure switch actuated)

Thermal motor protection switch closed

Reed switch "fuel tank" closed (float up)

Reed switch "detergent tank 1" open (float up)

Reed switch "water shortage safeguard" closed (water flow present)

"OFF" pressure switch open (pressure switch actuated

Exhaust gas thermostat closed

Reed switch "liquid softener tank" closed

(float up)

Reed switch "detergent tank 2" open (float up)

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7.13 Error memory

Function

70 °C

(52/44 °C)

ERRORS

This functions serves to read the fault memory.

The faults are displayed in

2 steps:

1 LED display of the fault type (see on the right).

2 Display of the pump run time in hours that has passed since the fault had occurred via the numerical values of the LEDs

Example:

Adjustments

LED indicator

- PAUSE -

Explanation:

The pump has been running for 14 hours since the fault "Thermal motor protection switch open" occurred.

Note

By operating the pushbutton function on the service switch you can advance to the next fault.

Important

Overvoltage detected on transformer 1.

Low voltage detected on transformer 1.

Excess current detected.

Current asymmetry detected.

Thermal motor protection switch open.

Dry running of the pump detected.

"Sticking" water shortage safeguard detected (closed although the pump is off).

"Oil refill container empty" detected.

Leakage (10 short startups < 2 seconds each).

Exhaust thermostat open.

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70 °C

(52/44 °C)

Function Adjustments

LED indicator Important

Temperature sensor fault. Short circuit or cable break.

Flame sensor recognises no or not enough light.

Flame sensor recognises light.

RFID write-read electronics defective.

End of the fault memory. Instead of the operating hours, the version of the installed software is displayed here.

Example:

Software version 1.4

Note

Every possible fault is saved, indicating how many operating hours ago the relevant fault occurred most recently.

Note

Delete all faults: 70°C (52/44 °C) and hold down "SET" upon switch-on.

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7.14 Operating hours

Function

75 °C

(55/45 °C)

STUNDENPWR

Indication of the consumed RM 110/111 bottles.

The value is displayed digit by digit by the LEDs, with every LED standing for a numeric value from 0

- 9 in accordance with its number.

Adjustments

LED indicator

The display is repeated after a pause.

Example:

The device has consumed 42 bottles of RM

110/111.

- PAUSE -

Important

Digit value "0"

Digit value "1"

Digit value "2"

Digit value "3"

Digit value "4"

Digit value "5"

Digit value "6"

Digit value "7"

Digit value "8"

Digit value "9"

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7.15 Gun switching operations since gun service

Function Adjustments

LED indicator

80 °C

(58/46 °C)

SI_PISTOLE

Display of the gun switchings since the most recent gun service.

The value is displayed digit by digit by the LEDs, with every LED standing for a numeric value from 0

- 9 in accordance with its number.

Important

Digit value "0"

Digit value "1"

Digit value "2"

The display is repeated after a pause.

Example:

The gun was actuated

430 times since the last gun service. The LEDs light up in the following order:

Digit value "3"

Digit value "4"

Digit value "5"

- PAUSE -

Digit value "6"

Digit value "7"

Digit value "8"

Digit value "9"

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7.16 Gun services

Function

85 °C

(60/48 °C)

SCTR_PISTOLE

Display of gun services.

The value is displayed digit by digit by the LEDs, with every LED standing for a numeric value from 0

- 9 in accordance with its number.

Adjustments

LED indicator

The display is repeated after a pause.

Example:

11 gun services have been performed since the device was first used. The

LEDs light up in the following order:

- PAUSE -

Important

Digit value "0"

Digit value "1"

Digit value "2"

Digit value "3"

Digit value "4"

Digit value "5"

Digit value "6"

Digit value "7"

Digit value "8"

Digit value "9"

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Function Adjustments

LED indicator Important

85 °C

+

„SET“

(60/48 °C

+

„SET“)

When switching on the device, the gun switching operations since the gun service (SI_PISTOLE) are reset to "0", the service counter gun (SCTR_PISTOLE) is increased by 1 and the fault memory is deleted.

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7.17 Gun switches since initial startup

Function Adjustments

LED indicator

90°C

(63/50 °C)

TOTALPISTOLE

Display of the gun switchings since device was first started up.

The value is displayed digit by digit by the LEDs, with every LED standing for a numeric value from 0

- 9 in accordance with its number.

The display is repeated after a pause.

Example:

The gun was actuated

9483 times since the device has been put into service. The LEDs light up in the following order:

- PAUSE -

Important

Digit value "0"

Digit value "1"

Digit value "2"

Digit value "3"

Digit value "4"

Digit value "5"

Digit value "6"

Digit value "7"

Digit value "8"

Digit value "9"

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7.18 Operation duration of the burner since burner service

Function Adjustments

LED indicator Important

Digit value "0"

95°C

(66/52 °C)

SI_Brenner

Display of the operation duration of the burner in hours since the last burner service.

The value is displayed digit by digit by the LEDs, with every LED standing for a numeric value from 0

- 9 in accordance with its number.

Digit value "1"

Digit value "2"

The display is repeated after a pause.

Example:

The burner has been in operation for 47 hours since the last burner service. The LEDs light up in the following order:

- PAUSE -

Digit value "3"

Digit value "4"

Digit value "5"

Digit value "6"

Digit value "7"

Digit value "8"

Digit value "9"

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7.19 Burner service

Function

100°C

(68/54 °C)

SCTR_BRENNER

Display of the burner service.

The value is displayed digit by digit by the LEDs, with every LED standing for a numeric value from 0

- 9 in accordance with its number.

Adjustments

LED indicator

The display is repeated after a pause.

Example:

4 burner services have been performed since the device was first used. The

LEDs light up in the following order:

- PAUSE -

Important

Digit value "0"

Digit value "1"

Digit value "2"

Digit value "3"

Digit value "4"

Digit value "5"

Digit value "6"

Digit value "7"

Digit value "8"

Digit value "9"

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Function Adjustments

LED indicator Important

100°C

+

„SET“

(68/54 °C

+

„SET“)

When switching on the device, the burner operation duration since the burner service (SI_BRENNER) is reset to "0", the service counter burner (SCTR_BRENNER) is increased by 1 and the fault memory is deleted.

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7.20 Burner operation since initial startup

Function Adjustments

LED indicator

112°C

(70/55 °C)

TOTALBRENNER

Display of the operation duration of the burner in hours since the initial startup of the device.

The value is displayed digit by digit by the LEDs, with every LED standing for a numeric value from 0

- 9 in accordance with its number.

The display is repeated after a pause.

Example:

The burner has been in operation for 32 hours since the initial startup of the device. The LEDs light up in the following order:

- PAUSE -

Important

Digit value "0"

Digit value "1"

Digit value "2"

Digit value "3"

Digit value "4"

Digit value "5"

Digit value "6"

Digit value "7"

Digit value "8"

Digit value "9"

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7.21 Operating hours of the pump since pump service

Function Adjustments

LED indicator

125°C

(74/56 °C)

SI_PUMPE

Display of the operating time of the pump since the last pump service in hours.

The value is displayed digit by digit by the LEDs, with every LED standing for a numeric value from 0

- 9 in accordance with its number.

Important

Digit value "0"

Digit value "1"

Digit value "2"

The display is repeated after a pause.

Example:

The burner has been in operation for 31 hours since the initial startup of the device. The LEDs light up in the following order:

- PAUSE -

Digit value "3"

Digit value "4"

Digit value "5"

Digit value "6"

Digit value "7"

Digit value "8"

Digit value "9"

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7.22 Pump service

Function

140°C

(77/58 °C)

SCTR_PUMPE

Display of the pump services.

The value is displayed digit by digit by the LEDs, with every LED standing for a numeric value from 0

- 9 in accordance with its number.

Adjustments

LED indicator

The display is repeated after a pause.

Example:

7 pump services have been performed since the device was first used. The

LEDs light up in the following order:

- PAUSE -

Important

Digit value "0"

Digit value "1"

Digit value "2"

Digit value "3"

Digit value "4"

Digit value "5"

Digit value "6"

Digit value "7"

Digit value "8"

Digit value "9"

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Function Adjustments

LED indicator Important

140°C

+

„SET“

(77/58 °C

+

„SET“)

When switching on the device, the pump operation duration since the pump service (SI_PUMPE) is reset to "0", the service counter pump (SCTR_PUMPE) is increased by 1 and the fault memory is deleted.

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7.23 Pump operation since initial startup

Function Adjustments

LED indicator

155°C

(80/60 °C)

TOTALPUMPE

Display of the operating time of the pump since the initial device startup in hours.

The value is displayed digit by digit by the LEDs, with every LED standing for a numeric value from 0

- 9 in accordance with its number.

The display is repeated after a pause.

Example:

The pump has been in operation for 32 hours since the initial device startup.

The LEDs light up in the following order:

- PAUSE -

Important

Digit value "0"

Digit value "1"

Digit value "2"

Digit value "3"

Digit value "4"

Digit value "5"

Digit value "6"

Digit value "7"

Digit value "8"

Digit value "9"

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7.24 Servicefunktionen mit Displayanzeige

1 Setting, water temperature

Service mode

If the service switch is in the "Service" position (screwdriver symbol) upon switching on the device, the service mode of the device is activated (pump is not running).

Selection of the service functions

The available service functions are selected via the water temperature setting.

Example: 30°C is equivalent to the function "Switch-off after 30 minutes of continuous operation".

For some functions the function selection must already be set upon switching on the device and the service switch must be kept in the "SET" position for 2-3 seconds.

Example: "RFID recognition" is called up with the setting

45°C + "SET" upon switch-on.

1 Display

Changing the settings

The indication of the current setting takes place via the display on the control panel.

By means of the pushbutton function of the service switch

(continue to turn to "SET" position, switch snaps back to the "Service" position) the settings can be changed. The change is also shown on the display.

Exiting the service mode

Turn off the appliance.

Set the service switch to the appropriate water hardness level or "OFF".

Turn on the appliance.

1 Service position

2 Service switch

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7.25 Set up the switching off process

30°C

35°C

Display Explanation Remark

Switch-off after 30 minutes of continuous operation is activated.

Switching with SET

Switch-off after 30 minutes of continuous operation is not activated (factory setting).

Switching with SET

Switch-off after 30 minutes of continuous break is activated.

Switching with SET

Switch-off after 30 minutes of continuous break is not activated (factory setting).

Switching with SET

7.26 Set up the leakage behaviour

Display Explanation

40°C

Remark

Switch-off after 10 short startups activated (factory setting).

Switching with SET

Switch-off after 10 short startups is not activated.

Switching with SET

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7.27 RFID query

Display

45°C

Explanation Remark

45°C

+

„SET“

Device is equipped with RFID.

Menu access:

Select 45°C

Switch off device. Hold SET.

Turn on the machine. Release SET. Select settings with SET.

Device is not equipped with RFID.

Check the setting when replacing the printed circuit board.

Menu access:

Select 45°C

Switch off device. Hold SET.

Turn on the machine. Release SET. Select settings with SET.

7.28 Brightness value of the flame sensor

Display Explanation Remark

Test flame sensor. Display brightness value.

<471: bright

>=471: dark

7.29 Testing the temperature sensor

Display Explanation

50°C

Remark

Test temperature sensor Indication temperature.

0°C is displayed when the temperature is below 0°C.

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7.30 Testing the water temperature setting and the programme switch

Display Explanation Remark

55°C

Output image for temperature selector switch test. Use SET to access the temperature selector switch test.

Temperaturwahlschaltertest. Es wird die am Temperaturwahlschalter gewählte Temperatur angezeigt.

Wenn der Temperaturwahlschaltertest fertig ist, muss wieder 55°C gewählt werden. Mit SET gelangt man in den Hauptschaltertest

Main switch test

Main switch test

Main switch test

Main switch test This display appears only very briefly as the device is also switched off here.

7.31 Test service switch

Display Explanation

60°C

Selected liquid softener setting.

Remark

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7.32 Testing the sensors

Display Explanation

65°C

Description from left to right:

Level stage fuel sensor (stage 7 of 8)

Thermal motor protection switch open.

Oil refill container not empty

Exhaust thermostat open.

Water shortage safeguard open

Level stage detergent 1 (stage 1 of 4)

Liquid softener container is empty

On pressure switch pressed

Off pressure switch pressed

Level stage detergent 2 (stage 2 of 4)

Description from left to right:

Level stage fuel sensor (stage 7 of 8)

Thermal motor protection switch closed

Oil refill container not empty

Exhaust gas thermostat closed

Water shortage safeguard closed

Level stage detergent 1 (stage 1 of 4)

Liquid softener container is full

On pressure switch not pressed

Off pressure switch not pressed

Level stage detergent 2 (stage 2 of 4)

Remark

In case of a cable break with a level sensor no stage is displayed.

If a level sensor has a cable break, no stage is displayed.

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7.33 Error memory

Note

Use SET to switch over to the next fault.

Display Explanation

With switch-off - hold SET - switch-on the fault memory can be deleted.

Remark

70°C

Mains voltage too high Check the supply voltage.

Mains voltage too low Check the supply voltage.

Motor current too high

Motor asymmetric

Motor sluggish or phase failed.

Check the mains connection.

Phase failed.

Check the mains connection.

Thermal motor protection switch open.

Dry running of the pump (2 minutes)

Engine is overheated

Motor sluggish.

Check the mains connection.

Ensure water supply.

Check water shortage safe guard.

Water shortage safeguard is sticky (reed switch or magnetic piston)

Check water shortage safe guard.

Oil refill container empty

10 short startups took place due to leakage

Refill lubricating oil.

Check the float of the oil refill container.

Rectify leaks in the highpressure system.

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Display Explanation Remark

Exhaust thermostat has triggered.

Decarbonize boiler.

Check exhaust gas thermostat.

Cable break or short circuit with water temperature sensor

Check temperature sensor.

Flame sensor does not detect a flame although the burner was switched on

Clean the looking glass.

Check fuel supply.

The flame sensor recognised bright although the burner was off

RFID write-read electronics defective.

Incidence of secondary light at the flame sensor.

Combustion chamber scaled.

Solenoid valve does not close.

RFID write-read electronics is defective - replace.

Cable break with level sensor fuel occurred Check level sensor fuel.

Cable break with level sensor detergent tank 1 occurred

Check level sensor RM 1.

Cable break with level sensor detergent tank 2 occurred

Check level sensor RM 2.

Software version 1.1

This is no fault.

Error merely appears for design reasons, because the display is in the error menu.

English 5.906-432.0 Rev. 00 (06/15)

105

7.34 Operating hours

Display Explanation

75°C

Indication of the consumed RM 110/111 bottles.

Remark

7.35 Gun switching operations since gun service

80°C

Display Explanation Remark

Number of gun switching operations since the last maintenance

Maintenance after 80000 gun switching operations

7.36 Gun services

Display Explanation Remark

85°C

Number of gun maintenances

7.37 Gun services since initial startup

Display Explanation

90°C

Number of total gun switching operations

Delete service.

Turn off the appliance.

Hold SET (2-3 seconds).

Turn on the appliance.

Note

The fault memory is also deleted.

Remark

106

English 5.906-432.0 Rev. 00 (06/15)

7.38 Operation duration of the burner since startup

95°C

Display Explanation Remark

Operation duration burner since the last maintenance

Maintenance after 400 burner hours.

7.39 Burner service

Display

100°C

Explanation

Number of burner maintenances

7.40 Burner operation since initial startup

112°C

Display Explanation

Total operation duration burner

Remark

Delete service.

Turn off the appliance.

Hold SET (2-3 seconds).

Turn on the appliance.

Note

The fault memory is also deleted.

Remark

7.41 Operating hours of the pump since pump service

125°C

Display Explanation Remark

Operation duration pump since the last maintenance

Maintenance after 600 pump hours.

English 5.906-432.0 Rev. 00 (06/15)

107

7.42 Pump services

Display

140°C

Explanation

Number of pump maintenances

7.43 Pump operation since initial startup

Display Explanation

155°C

Total operation duration of the pump

Remark

Delete service.

Turn off the appliance.

Hold SET (2-3 seconds).

Turn on the appliance.

Note

The fault memory is also deleted.

Remark

108

English 5.906-432.0 Rev. 00 (06/15)

7.44 Quick overview for reading the service functions

 Turn off the appliance.

 Make a note of the position of the service switch.

 Set the service switch to Service.

 Turn on the appliance.

 Set temperature regulator to the relevant temperature.

 30 (30/20)°C - Behaviour after 30 minutes of continuous operation.

 35 (34/32)°C - Behaviour after 30 minutes of stand-by.

 40 (37/34)°C - Behaviour in case of leakage.

 45 (40/35)°C - Brightness flame sensor.

 45 (40/35)°C and Set upon switch-on - device with/without RFID

 50 (43/36)°C - Temperature at the temperature sensor.

 55 (46/38)°C - Function check programme switch and temperature controller.

 60 (48/40)°C - Function check service switch.

 65 (50/42)°C - Input test (level oil pump, pressure switch ON, winding protection motor, level fuel, level chem1, water shortage safeguard, pressure switch

OFF, exhaust gas thermostat, level system care, level chem2).

 70 (52/44)°C - Display fault memory and software function (overvoltage, low voltage, excess current, phases asymmetric, winding protection motor, dry running, water shortage safeguard is stuck, oil shortage pump, leakage, exhaust gas thermostat, temperature sensor, flame sensor without light, flame sensor with light, RFID defective, software version).

 75 (55/45)°C - Bottle consumption system care RM

110/111.

 80 (58/46)°C - Gun switching operations since the last gun service (maintenance every 80000 switching operations).

 85 (60/48)°C - Number of gun services.

 85 (60/48)°C and Set upon switch-on - delete gun service and fault memory.

 90 (63/50)°C - Total gun switching operations.

 95 (66/52)°C - Operating hours since last burner service (maintenance every 400 h).

 100 (68/54)°C - Number of burner services.

 100 (68/54)°C and Set upon switch-on - delete burner service and fault memory.

 112 (70/55)°C - Total operating hours burner.

 125 (74/56)°C - Operating hours since last pump service (maintenance every 600 h).

 140 (77/58)°C - Number of pump services.

 140 (77/58)°C and Set upon switch-on - delete pump service and fault memory.

 155 (80/60)°C - Total operating hours pump.

 Turn off the appliance.

 Bring the service switch back into the position taken down before.

 Turn on the appliance.

Note

1. Value without brackets concerns all standard devic-

– es.

1. Value in brackets for devices up to max. 80 ?.

2. Value in brackets for devices up to max. 60 ?.

7.45 Reset of the maintenances

Display "Service" is on and the device functions completely normal.

Description applies to HDS devices with indicator lights on the control panel.

When resetting the maintenances, the fault memory is also deleted. (Delete faults only: Temperature controller to 70 (52/44)°C and SET upon switch-on).

Maintenance due as one or several of the following conditions has been reached:

80000 gun switching operations,

400 burner hours or

600 pump hours.

Print and cut out template (page 13).

Hold the template against the indicator lights on the control panel.

Maintenance is due after 80000 switching operations.

Perform maintenance when necessary.

Reset gun maintenance: 85 (60/48)°C and hold SET upon switch-on.

Query burner hours: Temperature controller to 95 (66/

52)°C.

Maintenance is due at 400h.

Perform maintenance when necessary.

Reset burner maintenance: 100 (68/54)°C and hold

SET upon switch-on.

Query pump hours: Temperature controller to 125 (74/

56)°C.

Maintenance is due at 600h.

Perform maintenance when necessary.

Reset pump maintenance: 140 (77/58)°C and hold SET upon switch-on.

Select the service mode.

(Switch off the device, put the service switch to "Service", switch on device).

Query gun switching operations: Temperature controller to

80 (58/46)°C.

Note

1. Value without brackets concerns all standard devic-

– es.

1. Value in brackets for devices up to max. 80 ?.

2. Value in brackets for devices up to max. 60 ?.

English 5.906-432.0 Rev. 00 (06/15)

109

7.46 Overview of a quick check of the device status

Read the fault memory in service mode at 70 (52/44)°C.

Every fault type is saved only once, together with the passed hours since it has last occurred.

Overvoltage detected hours ago:

Advance with "SET".

Low voltage range detected hours ago:

Excess current detected hours ago:

Current asymmetry detected hours ago:

Tripped winding protection motor detected hours ago:

2 minutes dry running detected hours ago:

Stuck water shortage safeguard detected hours ago:

Oil shortage in pump detected hours ago:

Leakage (10 short startups) detected hours ago:

Triggered exhaust gas thermostat detected hours ago:

Faulty temperature sensor for water detected in hours:

Flame sensor detects too little light hours ago:

Flame sensor detects light hours ago:

Reading error RFID electronics detected hours ago:

OOOO end of the fault memory reached.

OOOO display of the software version.

110

English 5.906-432.0 Rev. 00 (06/15)

7.47 Settings, burner

1 Pressure line to the burner

2 Fuel pump

3 Suction hose, fuel

4 Adjustment screw, fuel pressure

5 Return hose to the fuel tank

Measure water temperature

 Install the shut-off valve with thermometer (special tool) on the appliance outlet.

 Switch on the burner and bring the appliance to working pressure with full water volume via the shut-off valve.

 Let the device run in burner operation for approx. 5 minutes until the maximum water temperature is reached.

 Measure the increase in water temperature (water outlet temperature minus water supply flow temperature).

 For target values refer to technical specifications.

 Measure the soot value, CO2 content and the exhaust temperature (special tools, measuring gauges).

1 Air door, air volume adjustment

2 Stop screw

Adjusting the fuel pressure

 Set the fuel pressure (and water temperature) via the set screw.

 For target values refer to technical specifications.

Adjusting the soot value

 If the soot value is too high, then the air flap needs to be opened further or the fuel pressure needs to be reduced.

Adjust the CO

2

value

 Adjust the CO

2

value by moving the air flap. Open the air flap, the CO

2

content is decreasing.

Note

An accurate basic adjustment of the burner is only possible if the heating coil was previously thoroughly desooted and the deposits were removed.Eine exakte Grundeinstellung des Brenners ist nur möglich, wenn die Heizschlange vorher gründlich entrußt und die inneren Ablagerungen entfernt wurden.

Note

After finishing the basic adjustment, the fuel pump and the air flap must be sealed.

English 5.906-432.0 Rev. 00 (06/15)

111

7.48 Installation air duct on the outer jacket

1 Clamp ring

2 Air guidance

3 Exterior coat

 Clean the air duct and the outer jacket in the installation area.

 Install the air duct on the outer jacket.

 Grease clamping ring.

 Insert the clamping ring up into the air duct up to the noticeable stop.

Note

When installing the outer jacket (booster heater) in the device, the air duct can fall off the outer jacket. This leads to an aggravated installation. An additional clamping ring serves as installation aid.

Note

Ensure correct seating of the air duct.

1 Lock handles

2 Exterior coat

3 Clamp ring

4 Air guidance

112

English 5.906-432.0 Rev. 00 (06/15)

7.49 Adjusting the working pressure with the rotary regulator on the gun

7.49.1 Setting the maximum working pressure

1 Adjustment screw, high pressure

2 Lock nut, adjustment screw, high pressure

3 Spindle, pressure and quantity regulation

4 Adjustment screw, low pressure

5 Lock nut, adjustment screw, low pressure

6 Housing, overflow valve

 Install the test manometer (special tool) to the highpressure connection.

 Connect the high-pressure hose with gun and rotary regulator to the test manometer.

 Screw in the twist grip of the pressure and volume regulation on the pump all the way to the stop (towards

"+").

 Turn the rotary regulator to the position with the lowest pressure at the nozzle (towards "-"), open gun and let the device run.

 Pull off the rotary handle.

 Loosen the locknut of the adjustment screw for high pressure.

 Turn the adjustment screw high pressure in a way that the opening pressure of the overflow valve is reached on the test manometer.

Note

If this screw is turned clockwise, the pressure is increased; and if it is turned counter-clockwise, the pressure is decreased.

 After adjustment, secure the adjustment screw high pressure by means of a lock nut.

 Check the working pressure, feed volume and switch points of the pressure switches.

 Seal the adjustment screw for high pressure and the lock nut with safety lacquer.

Note

The rotary regulator is used to adjust the opening pressure of the overflow valve.

English 5.906-432.0 Rev. 00 (06/15)

113

7.49.2 Setting the minimum working pressure

1 Adjustment screw, high pressure

2 Lock nut, adjustment screw, high pressure

3 Spindle, pressure and quantity regulation

4 Adjustment screw, low pressure

5 Lock nut, adjustment screw, low pressure

6 Housing, overflow valve

 Fasten the test manometer to the high-pressure connection.

 Connect the high-pressure hose and gun to the test manometer.

 Install the new high pressure nozzle.

 Completely open the control knob on the gun (turn towards "+").

 Actuate the trigger on the gun and switch on the appliance.

 Rotate the rotating handle of the pressure regulator on the pump anti-clockwise (direction "-") all the way to the stop.

 Pull off the rotary handle on the pressure regulator.

 Loosen the locknut of the adjustment screw for low pressure.

 Turn the adjustment screw low pressure together with the spindle until the minimum working pressure of the overflow valve is reached on the test manometer (see technical data, partial load).

Note

If this screw is turned clockwise, the pressure is increased; and if it is turned counter-clockwise, the pressure is decreased.

 Secure the adjustment screw for low pressure by tightening the locknut.

 Check the working pressure, feed volume and switch points of the pressure switches.

 Then seal this setting.

Note

With minimum pressure and volume adjustments and when using the supplied steam nozzle, the pressure must not exceed 32 bar.

114

English 5.906-432.0 Rev. 00 (06/15)

7.50 Setting the working pressure with standard gun without rotary knob

7.50.1 Setting the maximum working pressure

1 Adjustment screw, high pressure

2 Lock nut, adjustment screw, high pressure

3 Spindle, pressure and quantity regulation

4 Adjustment screw, low pressure

5 Lock nut, adjustment screw, low pressure

6 Housing, overflow valve

 Fasten the test manometer to the high-pressure connection.

 Connect high-pressure hose with standard gun to the test pressure gauge.

 Install the new high pressure nozzle.

 Open standard gun.

 Turning on the appliance.

 Screw in the twist grip of the pressure and volume regulation on the pump all the way to the stop (towards

"+").

 Pull off the rotary handle.

 Loosen the locknut of the adjustment screw for high pressure.

 Turn the adjustment screw high pressure in a way that the opening pressure of the overflow valve is reached on the test manometer.

Note

If this screw is turned clockwise, the pressure is increased; and if it is turned counter-clockwise, the pressure is decreased.

 Secure the adjustment screw for high pressure by tightening the locknut.

 Check the working pressure, feed volume and switch points of the pressure switches.

 Then seal this setting.

Note

The maximum working pressure is set with the standard gun without control knob.

English 5.906-432.0 Rev. 00 (06/15)

115

7.50.2 Setting the minimum working pressure

8 Care and maintenance

Service group does not contain any maintenance and inspection points.

1 Adjustment screw, high pressure

2 Lock nut, adjustment screw, high pressure

3 Spindle, pressure and quantity regulation

4 Adjustment screw, low pressure

5 Lock nut, adjustment screw, low pressure

6 Housing, overflow valve

 Fasten the test manometer to the high-pressure connection.

 Connect high-pressure hose with standard gun to the test pressure gauge.

 Install the new high pressure nozzle.

 Open standard gun.

 Turning on the appliance.

 Rotate the rotating handle of the pressure regulator on the pump anti-clockwise (direction "-") all the way to the stop.

 Pull off the rotary handle.

 Loosen the locknut of the adjustment screw for low pressure.

 Turn the adjustment screw low pressure and the spindle until the minimum working pressure is reached.

Note

If this screw is turned clockwise, the pressure is increased; and if it is turned counter-clockwise, the pressure is decreased.

 Secure the adjustment screw for low pressure by tightening the locknut.

 Check the working pressure, feed volume and switch points of the pressure switches.

 Then seal this setting.

Note

With minimum pressure and volume adjustments and when using the supplied steam nozzle, the pressure must not exceed 32 bar.

116

English 5.906-432.0 Rev. 00 (06/15)

9 Troubleshooting

Failure Measure

Device is not running (no LED/display indication)

Check/replace mains voltage, connecting cable and mains fuse.

Check the fuse (F1).

Check/replace the power switch.

Check/replace the pressure switch

Check/adjust/replace control transformer.

Check/replace the temperature fuse.

Check/replace the PCB.

Unplug the RFID cable from the PCB and switch RFID in the software.

Check pressure switch electrically and mechanically.

Device is not running, LED standby is on or the display shows three filling levels

Winding protection contact was triggered

Switch off appliance and let it cool down. Remove the cause of the problem. Turn on the appliance again.

Water pressure too low

Water is not being heated

Check/raise the water input amount.

Check/clean/replace water fine filter.

Vent appliance.

Check/replace high-pressure nozzle.

Check/replace the pressure and suction valves

Check / adjust/ replace overflow valve.

Check/adjust/replace safety valve.

Check/correct temperature setting.

If the water shortage safeguard is switched off, ensure sufficient water supply/repair water shortage safeguard.

Check/refill fuel level in the tank.

Check/replace the solenoid valve fuel pump.

Check/replace fuel filter.

Check/correct the setting of the fuel pump.

Check/correct fuel nozzle.

Check/replace ignition cables.

Check/correct distances of the ignition electrodes.

Check/repair burner blower.

Check/correct setting of the air flap.

Control LED is on

During operation, all 10 LEDs are blinking at the same time, device switches off

Inadequate or no detergent function

5.4.1Control panel with LED indicator

Check service switch and ribbon cable.

Pressure reduction in the HP system

Water leak between the cylinder head and the piston casing

Oil leaks between the cylinder head and the piston casing

Pump is vibrating

Check/correct dosing valve setting.

Check/clean detergent tank.

Check/clean/replace detergent filter.

Check/replace detergent hose, dosing valve and detergent inlet at the cylinder head.

Check the trigger gun and the O-rings on the high-pressure hose for leaks / replace.

Check the pressure holding valve for leaks/replace the Orings.

Check / adjust/ replace overflow valve.

Check/replace the pressure switch and control piston.

Leakiness of 1 drop per minute and piston is acceptable.

Check/replace high pressure and low pressure seals.

Replace the oil seals.

Check pump for leaks/eliminate leaks.

Vent appliance.

English 5.906-432.0 Rev. 00 (06/15)

117

9.1

Error messages

Display Explanation

Rotating field of the motor incorrect.

Remark

Perform a phase inversion in the commutating pole plug.

Thermal motor protection switch (WSK) in the motor has tripped.

Switch off the device and allow the motor to cool down.

Mains voltage too low or too high or phase failed or the motor current is too high.

Check power supply.

Check the pump for sluggishness.

Water shortage (dry running after 2 minutes).

Open tap.

Ensure water supply.

Exhaust temperature is too high Perform maintenance on the burner.

Time monitoring active for 30 minutes, continuous break/continuous operation

Switch the device off and back on.

118

English 5.906-432.0 Rev. 00 (06/15)

9.2

Error message with service demand

Note

One display for multiple faults is used here. By reading the fault memory, the fault can possibly be localized. (Service mode 70°C)

Display Explanation Remark

Water shortage safeguard (reed switch or magnetic piston is sticky).

Check water shortage safe guard.

10 short startups/leakage.

Rectify leaks in the HP system.

Contactor does not switch.

Water temperature sensor (NTC) defective.

Flame sensor detects condition that is not permitted.

RFID write-read electronics defective.

Check contactor.

Check installation of the current transformer.

This fault is not saved.

Check NTC.

Cable NTC scraped blank or interrupted.

Possible causes:

Fuel solenoid valve

Fuel line/filter

Stray light

Sight glass sooted

Combustion chamber scaled

Fuel empty and fuel empty message defective

Check connection to the

RFID write-read electronics.

English 5.906-432.0 Rev. 00 (06/15)

119

10 Technical specifications

Appliance type

HDS 7/12-4 M

HDS 7/12-4 MX

HDS 8/18-4 M

HDS 8/18-4 MX

HDS 9/18-4 M

HDS 9/18-4 MX

HDS 10/20-4 M

HDS 10/20-4 MX

HDS 12/18-4 S

HDS 12/18-4 SX

HDS 13/20-4 S

HDS 13/20-4 SX

Appliance no.

1.077-410.0

1.077-450.0

1.077-609.0

1.077-650.0

1.077-810.0

1.077-850.0

1.071-420.0

1.071-456.0

1.071-620.0

1.071-650.0

1.071-800.0

1.071-850.0

10.1 Tightening torques

Cylinder head screws

Piston casing

Gun, pressure regulator

High pressure outlet

Pressure valve screw connection

Pressure valve screw connection

Suction valve screw connection

Overflow valve seat

Swash plate

Oil drain screw

Motor cover, rear

Blower wheel

Circuit diagram

0.089-021

0.089-021

0.089-025

0.089-025

0.089-025

0.089-025

0.088-952

0.088-952

0.088-952

0.088-952

0.089-026

0.089-026

Operating instructions Spare parts list

5.964-883.0

5.972-064.0

5.964-883.0

5.964-883.0

5.972-064.0

5.972-275.0

5.964-883.0

5.964-883.0

5.964-883.0

5.964-883.0

5.972-275.0

5.965-902.0

5.965-902.0

5.971-982.0

5.964-883.0

5.964-883.0

5.964-883.0

5.965-833.0

5.965-833.0

5.971-982.0

5.972-173.0

5.972-173.0

5.972-204.0

5.972-204.0

50 - 60 Nm

5 - 7 Nm

40 Nm

6 - 8 Nm

40 - 45 Nm

30 - 35 Nm

15 - 17 Nm

8 - 10 Nm

12 +/- 3 Nm

20 - 25 Nm

9 - 10 Nm

7 - 8 Nm

120

English 5.906-432.0 Rev. 00 (06/15)

11 Special tools

Electric measuring appliance 6.803-022.0 Shut-off valve with thermometer 2.901-030.0

Removal pliers, pressure/suction valves and water sieves

4.901-062.0 Installation mandrel oil seal, high-pressure seal

Piston diameter 18mm

Installation sleeve, high pressure seal

Piston diameter 18mm

Installation mandrel oil seal, high-pressure seal

Piston diameter 20mm

Installation sleeve, high pressure seal

Piston diameter 20mm

Installation mandrel oil seal

Piston diameter 22mm

Installation mandrel high pressure gasket

Piston diameter 22mm

Installation sleeve, high pressure seal

Piston diameter 22mm

5.901-062.0

5.901-118.0

5.901-055.0

5.901-194.0

5.901-064.0

5.901-018.0

5.901-136.0

Test manometer for working pressure 4.742-025.0 Disassembly overflow valve seat

Assembly overflow valve seat

5.901-161.0

5.901-162.0

English 5.906-432.0 Rev. 00 (06/15)

121

Soot pump

Soot filter paper

Soot pattern scale

Thermometer

Hardness indicator A

Indicator paper

Obtain recommended measuring devices,

Testo 320 or Testo 320-2-LL - measuring device CO2, directly from the supplier.

6.775-001.0

6.775-002.0

6.775-003.0

6.432-029.0

6.768-004.0

6.768-006.0

Puller for swashing plate

Note

Additionally required for both measuring devices:

Power Supply

Device case

Flue gas probe

4.901-038.0

Pressure gauge for fuel pressure 4.901-060.0 Installation mandrel for O-ring/support ring, overflow piston

5.901-163.0

122

English 5.906-432.0 Rev. 00 (06/15)

Mounting screws for piston guide (M8 x

75)

Mounting screws for piston guide (M6 x

110)

7.304-403.0

7.304-467.0

English 5.906-432.0 Rev. 00 (06/15)

123

12 Circuit diagram

Note

Please observe the most current circuit diagrams in DISIS.

Circuit diagram 0.089-021.0 HDS 7/12

124

English 5.906-432.0 Rev. 00 (06/15)

Circuit diagram 0.089-021.0 HDS 7/12

English 5.906-432.0 Rev. 00 (06/15)

125

Circuit diagram 0.089-025.0 HDS 8/18, HDS 9/18

126

English 5.906-432.0 Rev. 00 (06/15)

Circuit diagram 0.089-025.0 HDS 8/18, HDS 9/18

rot/red/rouge gelb/yellow/jaune schwarz/black/noir rot/red/rouge gelb/yellow/jaune schwarz/black/noir blau/blue/bleu weiss/white/blanc grau/grey/gris

W2: grau/grey/gris

V1: gelb/yellow/jaune

UNIT

W1: schwarz/black/noir

U2: weiss/white/blanc

UNIT

U1: rot/red/rouge

V2: blau/blue/bleu

DEBROUILLAGE

TEIL

TEIL

INTERFERENCE SUPPRESSION

DEBROUILLAGE KITDE

ENTSTOER

KITDE

ENTSTOER

INTERFERENCE SUPPRESSION

CARBURANT

FUEL ALVE SOLENOID V

BRENNSTOFFMAGNETVENTIL

ÉLECTROVANNE

OR

CONTACTEUR

CONTACT

SCHUETZ

D´HUILE

OFF

AUS

TARRET

ON

EIN

TMARCHE

DRUCKSCHALTER

DRUCKSCHALTER

PRESSOSTA

PRESSURE SWITCH

PRESSOSTA

PRESSURE SWITCH

SENSOR

ÖLMANGELSICHERUNG

SÈCURITÉ MANQUE

OILLEVEL

English 5.906-432.0 Rev. 00 (06/15)

127

Circuit diagram 0.088-952.0 HDS 10/20, HDS 12/18

128

English 5.906-432.0 Rev. 00 (06/15)

Circuit diagram 0.088-952.0 HDS 10/20, HDS 12/18

rot/red/rouge gelb/yellow/jaune schwarz/black/noir rot/red/rouge gelb/yellow/jaune schwarz/black/noir grau/grey/gris weiss/white/blanc blau/blue/bleu

W1: schwarz/black/noir

U2: weiss/white/blanc

V2: blau/blue/bleu

W2: grau/grey/gris

V1: gelb/yellow/jaune

UNIT

UNIT

U1: rot/red/rouge

DEBROUILLAGE

TEIL

TEIL

DEBROUILLAGE

INTERFERENCE SUPPRESSION

INTERFERENCE SUPPRESSION

KITDE

ENTSTOER

KITDE

ENTSTOER

CARBURANT

FUEL ALVE SOLENOID V

BRENNSTOFFMAGNETVENTIL

ÉLECTROVANNE

OR

CONTACTEUR

CONTACT

SCHUETZ

D´HUILE

OFF

AUS

TARRET

ON

EIN

TMARCHE

DRUCKSCHALTER

DRUCKSCHALTER

PRESSOSTA

PRESSURE SWITCH

PRESSOSTA

PRESSURE SWITCH

SENSOR

ÖLMANGELSICHERUNG

SÈCURITÉ MANQUE

OILLEVEL

English 5.906-432.0 Rev. 00 (06/15)

129

Circuit diagram 0.089-9026.0 HDS 13/20

130

English 5.906-432.0 Rev. 00 (06/15)

Circuit diagram 0.089-9026.0 HDS 13/20

rot/red/rouge gelb/yellow/jaune schwarz/black/noir rot/red/rouge gelb/yellow/jaune schwarz/black/noir blau/blue/bleu weiss/white/blanc grau/grey/gris

U1: rot/red/rouge

UNIT

W2: grau/grey/gris

V1: gelb/yellow/jaune

UNIT

W1: schwarz/black/noir

U2: weiss/white/blanc

V2: blau/blue/bleu

DEBROUILLAGE

TEIL

TEIL

INTERFERENCE SUPPRESSION

DEBROUILLAGE KITDE

ENTSTOER

KITDE

ENTSTOER

INTERFERENCE SUPPRESSION

CARBURANT

FUEL ALVE SOLENOID V

BRENNSTOFFMAGNETVENTIL

ÉLECTROVANNE

OR

CONTACTEUR

CONTACT

SCHUETZ

D´HUILE

OFF

AUS

TARRET

ON

EIN

TMARCHE

DRUCKSCHALTER

DRUCKSCHALTER

PRESSOSTA

PRESSURE SWITCH

PRESSOSTA

PRESSURE SWITCH

SENSOR

ÖLMANGELSICHERUNG

SÈCURITÉ MANQUE

OILLEVEL

English 5.906-432.0 Rev. 00 (06/15)

131

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