BOSCH GRB 14 CE Professional Pipe Belt Sander Instruction Manual

: June 5, 2024
: Bosch

Table of Contents

Safety Notes
Product Description and Specifications
Intended Use
Product Features
Technical Data
Noise/Vibration Information
Declaration of Conformity
Assembly
Operation
Maintenance and Service
Disposal
References
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GRB 14 CE Professional Pipe Belt Sander
**Instruction Manual

**

Safety Notes

General Power Tool Safety Warnings
WARNING
Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury.
Save all warnings and instructions for future reference.
The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
Work area safety

Keep the work area clean and well-lit. Cluttered or dark areas invite accidents.
Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks that may ignite dust or fumes.
Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

Electrical safety

Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce the risk of electric shock.
Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges, and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
Do not abuse the cord. Never use the cord for carrying, pulling, or unplugging the power tool. Keep cord away from heat, oil, sharp edges, and moving parts. Damaged or entangled cords increase the risk of electric shock.
When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply. The use of an RCD reduces the risk of electric shock.

Personal safety

Stay alert, watch what you are doing, and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol, or medication. A moment of inattention while operating power tools may result in serious personal injury.
Use personal protective equipment. Always wear eye protection. Protective equipment such as dust masks, non-skid safety shoes, hard hats, or hearing protection used for appropriate conditions will reduce personal injuries.
Prevent unintentional starting. Ensure the switch is in the off-position before connecting to a power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energizing power tools that have the switch on invites accidents.
Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.
Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts.
If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. The use of dust collection can reduce dust-related hazards.

Power tool use and care

Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.
Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.
Disconnect the plug from the power source and/or the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.
Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users.
Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.
Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation.

Service

Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.

Safety Warnings for Sander

Hold power tool by insulated gripping surfaces, because the belt may contact its own cord. Contact a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.
Use the machine only for dry sanding. Penetration of water into the machine increases the risk of an electric shock.
Apply the machine to the workpiece only when switched on and switch the machine off only after it has been lifted away from the workpiece. The power tool can move suddenly.
Never touch the running sanding belt. Danger of injury.
Pay attention that no persons are put at risk through sparking. Remove any combustible materials in the vicinity. Sparking occurs when sanding metal materials.
Do not use worn, torn or heavily clogged sanding belts. Damaged sanding belts can tear apart, be thrown from the machine, and injure somebody.
Prevent dust accumulation at the workplace. Dust can easily ignite.
Regularly clean the power tool’s air vents. The motor’s fan will draw the dust inside the housing and excessive accumulation of powdered metal may cause electrical hazards.
When working with the machine, always hold it firmly with both hands and provide for a secure stance. The power tool is guided more securely with both hands.
Secure the workpiece. A workpiece clamped with clamping devices or in a vice is held more secure than by hand.
Always wait until the machine has come to a complete stop before placing it down. The tool insert can jam and lead to loss of control over the power tool.
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).
If the 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. The replacement plug should have the same fuse rating 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 AUS and NZ only: Use a residual current device (RCD) with a rated residual current of 30 mA or less.

Product Description and Specifications

Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
While reading the operating instructions, unfold the graphics page for the machine and leave it open.

Intended Use

The power tool is intended for dry sanding, structuring and polishing metal pipes with diameters between 8120 mm.

Product Features

The numbering of the product features refers to the illustration of the machine on the graphics page.

Drive roller
Locking screw
Spindle lock
Auxiliary handle (insulated gripping surface)
Thumbwheel for belt speed preselection
On/Off switch
Tensioning arm
Guide roller
Sanding belt*
Guide roller
Handle (insulated gripping surface)

*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

Pipe Sander		GRB 14 CE
Article number		3 601 HA9 0..
Rated power input	W	1400
Belt speed at thumbwheel setting	m/s
m/s	2.7

The values given are valid for a nominal voltage [U] of 230 V. For different voltages and models for specific countries, these values can vary.

Noise/Vibration Information

Sound emission values were determined according to EN 60745-2-4.
Typically the A-weighted noise levels of the product are Sound pressure level of 89 dB(A); Sound power level of 100 dB(A).
Uncertainty K =3 dB.
Wear hearing protection!
Vibration total values ah (triax vector sum) and uncertainty K determined according to EN 60745-2-4: ah=3 m/s2, K=1.5 m/s2.
The vibration level given in this information sheet has been measured in accordance with a standardized test given in EN 60745 and may be used to compare one tool with another. It may be used for a preliminary assessment of exposure. The declared vibration emission level represents the main applications of the tool. However, if the tool is used for different applications, with different accessories or insertion tools or is poorly maintained, the vibration emission may differ. This may significantly increase the exposure level over the total working period. An estimation of the level of exposure to vibration should also take into account the times when the tool is switched off or when it is running but not actually doing the job. This may significantly reduce the exposure level over the total working period. Identify additional safety measures to protect the operator from the effects of vibration such as: maintaining the tool and the accessories, keeping the hands warm, and organization of work patterns.

Declaration of Conformity

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 including their amendments and complies with the following standards: EN 60745+1, EN 60745+2+4, EN 50581.
Technical file (2006/42/EC) at: Robert Bosch Power Tools GmbH, PT/ETM9 70538 Stuttgart, GERMANY

Henk Becker
Executive Vice President
Engineering

Helmut Heinzelmann
Head of Product Certification
PT/ETM9

Robert Bosch Power Tools GmbH
70538 Stuttgart, GERMANY
Stuttgart, 01.01.2017

Assembly

Before any work on the machine itself, pull the mains plug.
Dust/Chip Extraction
Dust from materials such as lead-containing coatings, some wood types, minerals, and metal can be harmful to one’s health. Touching or breathing in the dust can cause allergic reactions and/or lead to respiratory infections of the user or bystanders. Certain dust, such as oak or beech dust, is considered carcinogenic, especially in connection with wood-treatment additives (chromate, wood preservative). Materials containing asbestos may only be worked by specialists. Provide for good ventilation of the working place. It is recommended to wear a P2 filter-class respirator. Observe the relevant regulations in your country for the materials to be worked on.
Prevent dust accumulation at the workplace. Dust can easily ignite.
Mounting the Auxiliary Handle (see figure A)
Operate your machine only with the auxiliary handle 4. Screw the auxiliary handle 4 on the right or left of the machine head depending on the working method.
Adjusting the Auxiliary Handle (see figure B)

The auxiliary handle 4 can be adjusted, e. g., to carry out jobs in hard-to-reach locations.
Loosen locking screw 2.
Move the auxiliary handle 4 accordingly to suit your working conditions and working position.
Tighten locking screw 2 again.

Mounting/Replacing the Sanding belt (see figure C)

Push tensioning arm 7 toward guide roller 10. Remove sanding belt 9, if required.
With the tensioning arm, 7 pushed in, mount the new sanding belt 9.
Pay attention that the arrow directions on the inside of the sanding belt and the housing of the power tool correspond.
Guide tensioning arm 7 back to the starting position. Pay attention that the sanding belt 9 is properly seated on the guide rollers 8 and 10.

Selecting the Sanding Belt
Depending on the material to be worked and the required rate of removal, different sanding belts are available:

| Grain size
---|---
For dry sanding and pre-sanding| coarse 40, 60
For structuring and for smoothing out minor unevenness| medium 80, 120
For fine structuring| fine 180 Fleece belts

Operation

Starting Operation
Observe correct mains voltage! The voltage of the power source must agree with the voltage specified on the nameplate of the machine. Power tools marked with 230 V can also be operated with 220 V.
Switching On and Off
To start the machine, press the On/Off switch 6 and keep it pressed.
To lock on the pressed On/Off switch 6, push the On/Off switch 6 further forward.
To switch off the power tool, release the On/Off switch 6, or when it is locked, briefly press the On/Off switch 6 and then release it.
To save energy, only switch the power tool on when using it.
Preselecting the Belt Speed
Operate with a belt speed adapted to the application, in order to prevent damage to the material.
The required belt speed can be adjusted with the thumbwheel for belt speed preselection 5 (even during operation).
The required belt speed depends on the material being sanded and on the working conditions and can be determined by practical testing.
When using a fleece belt, do not work with a higher setting than speed stage 4 (max.). Otherwise, the fleece belt will become too hot.
Working Advice
The sanding of pipes takes place between the guide rollers 8 and 10 (see figure D).
The smaller the pipe diameter, the larger the possible wrap angle (270°).
When sanding, the removal capacity and the surface quality are mainly determined by the sanding belt selection as well as through the preselected belt speed.
Work with the lowest possible sanding pressure in order to increase the service life of the sanding belts. Excessively increasing the sanding pressure does not lead to a higher sanding capacity, but to more wear of the power tool and the sanding belt.
Work with moderate feed and perform the sanding parallel and overlapping with respect to the sanding paths.
To achieve a perfect surface, do not skip more than one-grain size when selecting the sanding belt.
Use only original Bosch sanding accessories.
Only flawless sanding belts achieve good sanding capacity and make the machine last longer. Do not clamp power tools in the saw stand.
Clamped power tools and sharp-edged application tools may result in serious injury.
Storage of the Sanding Belts Store sanding belts in their original packaging at 15 °C 25 °C room temperature and 40 % 70 % humidity.
Do not store sanding belts on concrete floors, close to open windows, or on heaters. Do not bend or kink the sanding belts, otherwise, they will become unusable.

Maintenance and Service

Maintenance and Cleaning
Before any work on the machine itself, pull the mains plug.
For safe and proper working, always keep the machine and ventilation slots clean.
Remove adherent sanding dust with a brush. If the replacement of the supply cord is necessary, this has to be done by Bosch or an authorized Bosch service agent in order to avoid a safety hazard.
Replacing the Guide Rollers (see figure E) 

Remove the screws of the guide rollers 8 and 10.
Remove the guide rollers 8 and 10 as well as the spacers.
Insert the screws through the new guide rollers 8 and 10.
Mount the new spacers onto the screws.
Mount the guide rollers 8 and 10 and tighten the screws.

Replacing the Drive Roller (see figure F) 

Press and hold the spindle lock 3 to lock the grinder spindle.
Loosen drive roller 1 with a two-pin spanner (accessory) and remove the drive roller 1.
Mount the new drive roller 1 using a two-pin spanner.
Release the spindle lock 3.

After-sales Service and Application Service
Our after-sales service responds to your questions concerning maintenance and repair of your product as well as spare parts. Exploded views and information on spare parts can also be found under: www.bosch-pt.com
Bosch’s application service team will gladly answer questions concerning our products and their accessories.
In all correspondence and spare parts orders, please always include the 10-digit article number given on the nameplate of the product.
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

Disposal

The machine, accessories, and packaging should be sorted for environmental- friendly recycling.
Do not dispose of power tools 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 rights, power tools that are no longer usable must be collected separately and disposed of in an environmentally correct manner.

Robert Bosch Power Tools GmbH
70538 Stuttgart
GERMANY
www.bosch-pt.com
1 609 92A 2NZ (2016.01) O / 147 EURO