Bosch Professional GEX 18V-150-3 Cordless Random Orbit Sander User Manual

Quick guide from the manual

This cordless random orbit sander is designed for dry sanding of wood, plastic, filler, and coated surfaces. Before starting, ensure the battery is fully charged and inserted correctly. Attach the appropriate sanding sheet to the sanding pad, ensuring the holes align for dust extraction. Install the dust box or connect an external vacuum cleaner to the extraction outlet. Use the speed preselection buttons to adjust the orbital stroke rate based on the material and application.

Safety Instructions

General Power Tool Safety: Always keep the work area clean and well-lit. Do not operate in explosive atmospheres. Keep children and bystanders away. Ensure the switch is in the off-position before connecting the battery.

Sander Safety: Use only for dry sanding. Empty the dust container before breaks to prevent fire hazards, especially if sanding dust is mixed with paint or chemical residues. Do not modify or open the battery.

Product Features

• On/off switch
• Dust box assembly
• Battery release button
• Sanding pad
• Speed preselection buttons
• Extraction outlet

Operation

Switching On/Off: Press the on/off switch to start. Press it again to stop. Ensure you can press the switch without releasing the handle.

Speed Preselection: Use the two buttons to preselect the required speed. The speed can be adjusted during operation. After working at low speeds, run the tool at maximum speed for approximately 3 minutes without load to cool it down.

Assembly

Changing the Sanding Sheet: Lift the old sheet from the side and pull it off the sanding pad. Clean the pad with a brush before attaching a new sheet. Press the new sheet firmly onto the pad, ensuring the holes align.

Changing the Sanding Plate: If the sanding pad is damaged, unscrew the screw, remove the pad, clean the surface, lubricate the marked ring with synthetic grease, attach the new pad, and retighten the screw.

Dust Extraction

Self-generated: Slide the complete dust box onto the extraction outlet until it is flush. Empty the box by pulling it off and unscrewing the adapter.

External: Fit an extraction hose onto the extraction outlet. Connect the hose to a suitable vacuum cleaner. Using anti-static hoses is recommended to prevent static charge.

Working Advice

Rough Sanding: Use a coarse grit sanding sheet. Apply light pressure for higher orbital stroke rates and material removal.

Fine Sanding: Use a fine grit sanding sheet. Vary the contact pressure or change the speed setting to reduce the orbital stroke rate while maintaining the random orbit motion.

Maintenance and Service

Always remove the battery before maintenance. Keep the tool and ventilation slots clean. If the braking effect deteriorates, check the sanding pad for wear and replace it or the pad brake/rubber sleeve if necessary.