BOSCH HIGH-PRESSURE WASHER Instruction Manual

: June 5, 2024
: Bosch

Table of Contents

Safety Notes
Intended Use
Product Features
Technical Data
Troubleshooting
Maintenance and Service
References
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BOSCH HIGH PRESSURE WASHER

GHP
5-55 | 5-65 | 5-65X | 5-75 | 5-75X | 500

BOSCH HIGH PRESSURE WASHER - fig | BOSCH HIGH
PRESSURE WASHER - fig1
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BOSCH HIGH PRESSURE WASHER - fig10

Safety Notes

Symbols on the machine
Read all safety warnings and all instructions. Failure to follow the warnings instructions may result in electric shock, fire, and/or serious injury.

General hazard safety alert.

Never direct the water jet at people, animals, the unit, or electric components. Warning: High-pressure jets can be dangerous if subject to misuse.

According to the applicable regulations, the appliance must never be used on the drinking water network without a system separator. Use a separator as per IEC 61770 Type BA. Water flowing through a system separator is considered not drinkable. For self-priming use a special suction kit 3 m long (F 016 800 335).
User qualification and personal protection

▶ This machine can be used by people with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning the use of the machine in a safe way and understand the hazards involved.
▶ The unit must not be operated by children or juveniles. Children should be supervised to ensure that they do not play with the unit.
▶ The unit may only be used by authorized persons who have received training or have demonstrated their ability to operate the unit

Wear personal protective equipment (PPE) e. g. safety goggles, dust masks,s, etc. to protect against water, particles, and/or aerosols sprayed back from parts. Do not inhale aerosols if self-priming from external sources. Such water can contain disease-causing agents.

▶ Do not use the appliance within the range of persons unless they also wear protective clothing. Connecting to the mains
▶ The voltage indicated on the rating plate must correspond to the voltage of the power source.
▶ The operating voltage is 230 V AC, (for non-European countries 220 V or 240 V, as applicable).
▶ This is a class I unit and may only be connected to properly earthed power sources.
▶ The electric supply installation shall be made by a qualified electrician and comply with IEC 60364-1.
▶ We recommend that this equipment is only connected to a socket that is protected by a circuit-breaker that would be actuated by a 30 mA residual current.

Requirements for extension cords and plugs
▶ Warning: Inadequate extension cords can be dangerous. The extension cord must have an earth wire. The extension cord, plug, and socket must be of waterproof construction, protected against splashed water, and intended for outdoor use. If in doubt, contact a qualified electrician or the nearest Bosch Service Centre.
▶ The following wire dimensions are recommended: Up to 20 m lengths, 2.5 mm 2 wire diameter, up to 50 m 2 length 4.0 mm wire diameter.
▶ If your plug is not suitable for your socket outlets, it should be cut off and an appropriate plug fitted in its place by an authorized customer service agent. In the case of the electric plug with internal fuse, the replacement plug should have the same fuse ratings as the original plug. The severed plug must be disposed of to avoid a possible shock hazard and should never be inserted into the main socket elsewhere.
▶ Products sold in GB only: Your product is fitted with a BS 1363/A approved electric plug with an internal fuse (ASTA approved to BS 1362).
▶ Remove the plug from the socket whenever the machine is left unattended for any period.
▶ Do not touch the plug or socket with wet hands.
▶ Do not pull the plug while operating the device.

▶ The connection between the supply cord and extension cord must be kept dry and off the ground 60 cm above.
▶ Do not use the unit, if the power supply cord or important parts,e. g. high- pressure hose, power gun, or safety devices are damaged.
▶ Do not run over, crush or pull the power supply cord or extension cord, otherwise it may be damaged. Protect the cable from heat, oil, and sharp edges.
Water connection
▶ Observe the regulations of your water supply company.
▶ The appliance should never be used on the drinking water supply without a backflow valve. Water that has passed the backflow valve is regarded as undrinkable.
High-pressure hose
▶ High-pressure hoses, fittings, and couplings are important for the safety of the appliance. Use only hoses, fittings, and couplings recommended by the manufacturer.
▶ A damaged high-pressure hose can burst and must be replaced immediately. Never pull the hose over sharp edges. Don’t pull if the hose is entangled.
Use of detergents
▶ Only use detergents recommended by the manufacturer. Comply with the application, disposal, and warning instructions of the detergent manufacturers.
▶ We recommend that the detergents are not used undiluted. The products are safe to use as they contain no acids, alkalis, or substances which are detrimental to the environment. We recommend that the detergents are kept out of the reach of children. If detergent comes into contact with the eyes, wash immediately with plenty of water, and if swallowed contact a doctor immediately.
▶ Do not use solvent-containing liquids, undiluted acids, acetone, or solvents! This includes petrol, paint thinners, and heating oil. The sprayed vapour is highly flammable, explosive, and toxic.
Observe before use

▶ The operator must use the unit in accordance with the regulations. He/she must take local conditions into account and be aware of other people, especially children when operating the unit.
▶ Before use, check that the unit and operating equipment are in perfect condition and are safe to operate. Do not use the unit if it is not in perfect condition.
▶ The unit must be positioned on its supports vertical or horizontal on solid ground.
▶ All current-conducting components in the working area must be protected against splashed water.

The water jet from the high-pressure nozzle produces a significant recoil at the gun. Therefore hold the gun and spray lance firmly with both hands.

Do not direct the water jet at the machine itself.
Do not direct the jet against yourself or others in order to clean clothes or footwear.
▶ The gun trigger must not be temporarily or permanently fixed in the open position during operation.
▶ Metal parts may become hot after prolonged usage, if necessary wear protective gloves.
▶ High-pressure washing during storms, excessive rain, etc. must be avoided, especially when there is a risk of lightning.
▶ The appropriate safety regulations must be observed when using the unit in dangerous areas (e. g. petrol stations). It is forbidden to operate the unit in potentially explosive locations.
▶ Materials containing substances that are hazardous to your health (e.g. asbestos) must not be sprayed.

Vehicle tyres/tyre valves may only be cleaned from a minimum distance of 30 cm, otherwise, the vehicle tyre/tyre valve could be damaged by the high- pressure jet. The first indication of this is a discolouration of the tyre. Damaged vehicle tyres/tyre valves can be extremely dangerous.
Observe before maintenance

▶ Switch off the unit and pull out the mains plug prior to all maintenance and care.
▶ Repairs may only be carried out by authorised Bosch Service Centres.
▶ Accessories and spare parts which have been approved by Bosch must be used. Original accessories and spare parts guarantee that the unit can be operated safely and without any breakdowns.

Symbols in manual
The following symbols are important for reading and understanding the operating instructions. Please take note of the symbols and their meaning. The correct interpretation of the symbols will help you to use the machine in a better and safer manner.

Symbol	Meaning
Movement direction
Reaction direction
Weight
On
Off
Lo	Low pressure
Hi	High pressure
Accessories

Intended Use

This product is intended for professional use in cleaning areas around houses and objects, cleaning tools, vehicles and boats if the appropriate accessories such as cleaning agents approved by Bosch for this product are used. Intended use is related to operation within 0°C and 50°C ambient temperature.

Product Features

The numbering of the product features refers to the illustrations on the graphics pages.

1 Trigger
2 Trigger safety lock
3 Power gun
4 Lance screw connector coupling
5 Stainless steel spray lance
6 Nozzle
7 Pressure hose fitting (power gun)
8 Handle
9 Additional storage space (GHP 5-55/GHP 5-65/GHP 5-75)
10 Top lance holder
11 Main switch
12 Bottom lance holder
13 Connection for high-pressure hose (GHP 5-55/GHP 5-65/GHP 5-75)
14 Water inlet connection| 15 Auxiliary lifting handle
16 Transport wheels
17 Foot pedal
18 Detergent gauge
19 Detergent hose
20 Rubber foot
21 Storage
22 Rear lifting handle
23 Cable holder
24 Hose reel handle (GHP 500 X/GHP 5-65 X/GHP 5-75 X)
25 Hose reel (GHP 500 X/GHP 5-65 X/GHP 5-75 X)
26 Pressure adjustment knob (GHP 5-75/GHP 5-75 X)
27 Pressure gauge (GHP 5-75 X)
28 High-pressure hose (GHP 5-55/GHP 5-65/GHP 5-75)
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Accessories shown or described are not part of the standard delivery scope of the product. A complete overview of accessories can be found in our accessories program.

Technical Data

Pressure washer| | GHP 5-55| GHP 500X| GHP 5-65| GHP 5-65X| GHP 5-75| GHP 5-75X
---|---|---|---|---|---|---|---
Article number| 3 600 …| J10 4..| J10 9.| J10 5.| J10 6.| J10 7.| J10 8.
Rated power| kW| 2.2| 2.2| 2.4| 2.4| 2.6| 2.6
Supply temperature max.| °C| 50| 50| 50| 50| 50| 50
Rated flow rate| l/h| 500| 500| 485| 485| 560| 560
Rated pressure| MPa| 11.5| 11.5| 13.0| 13.0| 14.0| 14.0
Max. operating pressure| MPa| 13.0| 13.0| 16.0| 16.0| 18.5| 18.5

Starting cycles generate brief voltage drops. Interference with other equipment/machines may occur in case of unfavourable mains system conditions.
Malfunctions are not to be expected for system impedances below 0,153 ohms.

Pressure washer| GHP 5-55| GHP 500X| GHP 5-65| GHP 5-65X| GHP 5-75| GHP 5-75X
---|---|---|---|---|---|---
Rated Flow| I/h| 520| 520| 520| 520| 570| 570
Maximum inlet pressure| MPa| 1| 1| 1| 1| 1| 1
Kickback force at the gun to the maximum pressure| N| 19.71| 19.71| 20.46| 20.46| 24.37| 24.37
Motor insulation| | Class F| Class F| Class F| Class F| Class F| Class F
Motor protection| | IPX5| IPX5| IPX5| IPX5| IPX5| IPX5
Autostop function| | | | | | |
Pressure gauge| | –| –| –| –| –|
Pressure adjusting knob| | | –| –| –| |
Hose reel| | –| | –| | –| ****
Net impedance| Ω| 0.153| 0.153| 0.153| 0.153| 0.153| 0.153
Weight according to EPTA-Procedure 01/2003| kg| 22.0| 24.8| 23.5| 25.0| 26.7| 28.2
Protection class| | /I| /I| /I| /I| /I| /I
Serial number| See the serial number (rating plate) on the pressure washer.

Starting cycles generate brief voltage drops. Interference with other equipment/machines may occur in case of unfavourable mains system conditions. Malfunctions are not to be expected for system impedances below 0,153 ohms.

Noise/Vibration Information

Sound emission values are determined according to
EN 60335-2-79.| 3 600 …| J 10 4.| J10 5..| J10 6..| J10 7..| J10 8..| J10 9..
---|---|---|---|---|---|---|---
Typically the A-weighted noise levels of the product are Sound pressure level Sound power level Uncertainty K Wear hearing protection!| dB(A)
dB(A)
dB| 78
92
=2.5| 78
92
=2.5| 78
92
=2.5| 78
92
=2.5| 77
91
=2.3| 77
91
=2.3
Vibration total values ah (triax vector sum) and
uncertainty K determined according to EN 60335-2-79:
Vibration emission value ah
Uncertainty K| 2
m/s
2
m/s| =1.841
=1.5| =1.841
=1.5| =1.841
=1.5| =1.841
=1.5| =1.841
=1.5| =1.841
=1.5

Declaration of Conformity

| 3 600 …| J 10 4.| J10 5.| J 10 6.| J10 7.| J10 8.| J10 9.
---|---|---|---|---|---|---|---
We declare under our sole responsibility that the product described under “Technical data” is in conformity with all relevant provisions of the directives 2011/65/EU, until 19 April 2016: 2004/108/EC, from 20 April 2016 on 2014/30/EU, 2006/42/EC, 2000/14/EC including their amendments and complies with the following standards: EN 60335-1, EN 60335-2-79. 2000/14/EC: guaranteed sound power level: Conformity assessment procedure according to Annex V.| dB(A)| 92| 92| 92| 92| 91| 91

Equipment category: 27
Technical file (2006/42/EC, 2000/14/EC) at:
Bosch Lawn and Garden Ltd., PT-HG/ENS-PA2,
Stowmarket, Suffolk IP14 1EY, England

Henk Becker
Executive Vice President
Engineering
| Helmut Heinzelmann
Head of Product Certification
PT/ETM9

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Robert Bosch GmbH, Power Tools Division 70764 Leinfelden-Echterdingen, GERMANY 12.05.2015

Connecting to the water supply (see figure F)
Note: Rated output pressure can only be achieved if the flow rate at the water input is sufficient. The flow rate is sufficient if a 10-litre bucket can be filled in less than 1 minute.
CAUTION: Permanent operation with a lack of water at the water input can damage the pump.
NOTE: For a sufficient water supply use a short hose with a diameter not thinner than 1/2″ (13 mm). Hoses longer than 10 m should have a diameter of 3/4″ (19 mm). Open the water tap completely. All connections must be tight. Clean the water filters periodically (see chapter Maintenance).
– It is recommended to use always an external water filter (accessory). Check the water filter for tight assembly.
– If necessary, screw on a hose adapter (not supplied with the machine).
– Connect a suitable water hose, best with 1/2″ (13 mm) or 3/4″ (19 mm) diameter.
– Open the water tap completely and check all connections for tightness.

Connecting to the mains (see figure G)
NOTE: Rated output pressure is only available if the machine is connected to a stable mains voltage. Using a long connection cable with a thin wire cross-section, an uncoiled cable drum, operating other machines concurrently at the same circuit or voltage fluctuations outside accessible tolerances impede motor starting or result in low output pressure.
Bleeding high-pressure washer and hoses (see figure G)
NOTE: Bleed the unit each time the water hose is connected to the water tab according to the following procedure: Leave the main switch at the OFF (0) position. Disconnect the lance from the gun.
– As soon the trigger of the gun is operated, air and water exit noisily. Hold the trigger until the water exits steadily from the gun. Release the trigger.
– Reconnect the lance.
– Switch on the machine for operation.
– Press the safety release and operate the trigger of the gun.
Use alternative water sources (see figure I)
This high-pressure washer will self-prime and can draw water from water tanks and natural water sources. It’s IMPORTANT that the water is clean and both the BOSCH inlet filter and external filter are clear and fitted to the machine (see chapter Maintenance)

Open tanks/containers and natural water sources (see figure I)
Use the Self Priming accessory kit comprising:
– Inlet strainer with non-return valve
–3m reinforced supply hose
– Universal coupling to the pressure washer
This enables the pressure washer to draw water up to 0.5 m above the water level in the source in approximately 25 – 50 seconds.

Submerge the 3 m hose in water to displace the air. Connect the 3 m supply hose to the pressure washer ensuring that the inlet strainer remains submerged in the water source. Run the pressure washer with the lance disconnected until a steady flow of water appears from the high-pressure hose. Stop if this has not been achieved within 25 – 50 seconds and check all the connections. Switch off and connect the lance and nozzle to operate.
It is important to ensure that all hose and coupling connections are of good quality, and airtight and that all washers are in good condition and correctly seated in place. Failure to do so may affect self-priming performance.

Water Tanks with outlet connections (see figure I)
When connecting the pressure washer to a water tank with a suitable tap outlet, first connect the supply hose (not provided) to the tank outlet, open the tap to allow the water to displace all the air in the hose and then connect to the pressure washer.
Use of detergents (see figure J)
Only use detergents recommended by the manufacturer. Comply with the application, disposal and warning instructions of the detergent manufacturers.
Pull out the suction hose at the rear and put it into a bottle with detergent (not supplied with). Pull the nozzle of the lance into a low-pressure position.
Switch on the gun. After a few seconds foam exits at the nozzle. Just the knob at the rear to dose the quantity.
Turn the nozzle left/right to adjust the water jet.

Troubleshooting

Problem	Possible Cause	Corrective Action
Motor refuses to start	Plug not connected	Connect plug
Mains socket faulty	Use another socket
Fuse faulty/blown	Replace fuse
Extension cable damaged	Try without an extension cable
The motor protector has activated	Allow cooling for 15 minutes
Frozen	Wait for pump/water supply hose/accessory to thaw
Motor stops	Fuse faulty/blown	Replace fuse
The motor protector has activated	Check that mains voltage corresponds to

specifications on the model tag
Wrong mains voltage| Allow cooling for 15 minutes
Fuses blow| Fuses incorrectly rated| Change to a mains supply higher than the pressure washer amp consumption
Motor starts but no pressure| Nozzle partly blocked| Clean nozzle
Motor “sounds” but fails to start| Insufficient power supply| Check that the voltage of the mains power supply line is the same as that on the plate
| Voltage loss due to use of extension cable| Check characteristics of extension cable
Appliance not used for a long period of time| Contact your Bosch Service Centre
Problems with TSS (Total Stop System) device| Contact your Bosch Service Centre
Pressure pulsating| Air in the inlet water supply hose/pump| Allow the pressure washer to run with an open spray handle and nozzle at low pressure until regular working pressure is obtained
| Inadequate water supply| Check that the water supply corresponds to specifications. The minimum specification for the water in the supply hose is 1/2″ or 13 mm diameter
Water filter blocked| Clean water filter
Water supply hoses squeezed| Straighten out kinked water supply hoses
Pressure too low, but steady
Note: Several types of accessories will normally deliver a lower pressure| High-pressure hose too long| Remove high-pressure extension hose. Retry (extension hose max. 7 m)
Nozzle worn| Change the nozzle
| Start/stop valve worn| Activate the trigger five times in quick succession
No water supply| Connect water supply
The water filter clogged up| Clean the water filter
Nozzle clogged up| Clean nozzle
The pressure washer starts irregularly by| Pump/power gun leaky| Contact your Bosch Service Centre
Water leaks from the machine| Leaking pump| A slight water leak is permissible; in case of excessive leak, contact Bosch Service Centre
Problem| Possible Cause| Corrective Action
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No detergent was taken in| Adjustable nozzle on high-pressure set| The set nozzle on a low-pressure setting
Detergent too dense| Dilute with water
High-pressure hose extension being used Deposits or restriction in detergent circuit| Fit original hose
Deposits or restrictions in detergent circuit| Flush with clean water and eliminate any restrictions. If the problem persists, contact your Bosch Service Centre.

Draining Machine after use (see figure L)
Disconnect the water hose from the water tap.
Disconnect the lance from the gun.
Direct the gun to the ground and switch on the machine for operation.
Operate the trigger of the gun and drain all water from the system.
CAUTION: Do not run the machine longer the 25 seconds. Store the high- pressure washer in a dry place.
CAUTION: Scaling and frost damages are not covered under warranty. The remaining water in the machine will freeze at temperatures below 0 °C and destroy the pump. Within climate zones where temperature can reach 4 °C or below, the machine must be drained after last use if being stored prior to the cold season.

Maintenance and Service

Maintenance

▶ Stop, remove the plug from the power supply and disconnect from the water supply.
Note: To ensure long and reliable service, carry out the following maintenance regularly.
Check for obvious defects such as loose fixings, and worn or damaged components.
Check that covers and guards are undamaged and correctly fitted. Carry out necessary maintenance or repairs before using.
We recommend servicing the product every 200 (GHP 5-55, GHP 5-65, GHP 5-65 X, GHP 500 X)/300 (GHP 5-75, GHP 5-75 X) hours of running time with the Authorised Bosch Service Centre.
Clean the filters periodically once a week. Mention cleaning with vinegar can remove scales faster. Keep it immersed in vinegar for 30 mins. (see figures M – N)
Clean the nozzle.
Grease the O rings. (see figure O)

After-sales Service and Application Service
www.bosch-professional.com
In all correspondence and spare parts orders, please always include the 10-digit article number given on the type plate of the machine.

Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
Denham
Uxbridge
UB 9 5HJ
At www.bosch-pt.co.uk you can order spare parts or arrange the collection of a product in need of servicing or repair.
Tel. Service: (0344) 7360109
E-Mail: boschservicecentre@bosch.com

Ireland
Origo Ltd.
Unit 23 Magna Drive
Magna Business Park
City West
Dublin 24
Tel. Service: (01) 4666700
Fax: (01) 4666888
Australia, New Zealand and Pacific Islands
Robert Bosch Australia Pty. Ltd.
Power Tools
Locked Bag 66
Clayton South VIC 3169
Customer Contact Center
Inside Australia:
Phone: (01300) 307044
Fax: (01300) 307045
Inside New Zealand:
Phone: (0800) 543353
Fax: (0800) 428570
Outside AU and NZ:
Phone: +61 3 95415555
www.bosch.com.au
Republic of South Africa
Customer service
Hotline: (011) 6519600
Gauteng – BSC Service Centre
35 Roper Street, New Centre
Johannesburg
Tel.: (011) 4939375
Fax: (011) 4930126
E-Mail: bsctools@icon.co.za

KZN – BSC Service Centre
Unit E, Almar Centre
143 Crompton Street
Pinetown
Tel.: (031) 7012120
Fax: (031) 7012446
E-Mail: bsc.dur@za.bosch.com
Western Cape – BSC Service Centre
Democracy Way, Prosperity Park
Milnerton
Tel.: (021) 5512577
Fax: (021) 5513223
E-Mail: bsc@zsd.co.za
Bosch Headquarters
Midrand, Gauteng
Tel.: (011) 6519600
Fax: (011) 6519880
E-Mail: rbsa-hq.pts@za.bosch.com

Environmental Protection
Chemicals dangerous to the environment must not be allowed to enter the ground, groundwater or ponds, streams, etc.
For the use of cleaning agents, observe the instructions on the package and the prescribed concentration exactly.
For the cleaning of motor vehicles the local regulations should be observed: Do not allow oil sprayed off to enter into the groundwater. Recycle raw materials instead of waste disposal.

Disposal

The pressure washer, accessories and packaging should be sorted for environmental-friendly recycling.

Do not dispose of pressure washers into household waste!

Only for EC countries:

According to the European directive, 2012/19/EU for Waste Electrical and Electronic Equipment and its implementation into national law, electrical and electronic equipment that are no longer usable must be collected separately and disposed of in an environmentally correct manner.
Subject to change without notice

BOSCH HIGH PRESSURE WASHER - fig17