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Warns about potential hazards related to PTFE components during servicing.
Illustrates and describes the main components and their functions with a diagram.
Covers air quality, lubrication, and compressed air connection requirements for installation.
Provides recommendations for posture, workstation setup, and work practices for safe operation.
Step-by-step instructions for adjusting the wheel guard for safety.
Guidelines for operating the tool, including free speed checks and procedures.
Instructions on how to perform a daily free speed check using a tachometer.
Safety precautions and steps for starting and operating the grinder.
General guidelines for tool maintenance and service.
Specifies that maintenance and service must be performed by authorized personnel.
Details on regular examination, grease changes, and strainer cleaning for tool maintenance.
Provides a table of common problems, their reasons, and recommended actions for resolution.
Lists reasons and actions for when the tool fails to start.
Lists reasons and actions for when the tool experiences low power output.
Lists reasons and actions for excessive vibrations during operation.
This document describes the LSV39 SA12-125 Grinder, a tool designed for grinding applications. It is accompanied by comprehensive product instructions covering installation, operation, and maintenance.
The grinder's primary function is to perform grinding tasks, utilizing various abrasive attachments. It is designed for use with compressed air, and its operation involves a two-step throttle lever and security mechanism for safe starting and stopping. The tool is equipped with a support handle that can be adjusted for flexible working positions, accommodating both left and right-handed operators. A spindle locking button facilitates the fastening of the grinding wheel, and a wheel guard adjustment button allows for precise positioning of the wheel guard. The adjustable wheel guard is a critical safety feature, preventing operator contact with the grinding wheel and offering protection in the event of a bursting wheel. An auto balancer is integrated to reduce vibrations during operation, enhancing user comfort and control.
For optimal performance and longevity, specific usage features and installation requirements are outlined. The tool requires a compressed air supply, and strict guidelines are provided for air quality, including recommendations for a maximum dew point of +10°C (50°F) and the use of a separate air filter to remove solid particles and liquid water. Lubrication is also crucial, with an air lubrication guide detailing recommended lubricants like Atlas Copco Optimizer, Q8 Chopin 46, and Shell Air Tool Oil S2 A 320. The compressed air connection instructions emphasize safety, advising users to always shut off the air supply and drain the hose before making adjustments or changing accessories. It also warns against exceeding maximum air pressure and stresses the importance of using correct hose sizes and fittings.
Before use, a visual inspection of the tool and its accessories is recommended, checking for any damage, grease, or oil leakage that could compromise safety. This includes inspecting the wheel guard or backing pad, adapters, nuts or flange washers, support handle, throttle lever and security mechanism, autobalancer, and spindle. The air installation should also be visually inspected from the supply point to the tool, checking the hose, couplings, system pressure, and air filter for any damage.
The document provides detailed ergonomic guidelines to enhance user comfort and safety. These include taking frequent breaks, changing work positions, adapting the workstation to individual needs, and adjusting for convenient reach ranges. It advises against working above shoulder level or with static holding during assembly, recommending the use of torque arms, hose reels, or weight balancers to reduce static load. Avoiding extreme arm or wrist postures, ensuring appropriate lighting, and using ear protection in noisy environments are also highlighted. The use of high-quality inserted tools or consumables is recommended to minimize vibration exposure, and strategies for minimizing reaction forces during cutting, drilling, and using direct-driven screw or nutrunners are provided. Additionally, the use of a dust extraction system or mouth protection mask in dusty environments is advised.
Configuration instructions detail various wheel configuration options, including grinding wheels (Type 27), cutting off wheels (Type 41), wheel brushes, and pads. Safety warnings reiterate the importance of shutting off air supply, draining hose pressure, and disconnecting the tool before changing accessories or making repairs, always wearing protective gloves. Adjusting the wheel guard is a critical step, with instructions to pull and hold the lock button, turn the guard to a suitable position between the operator and the grinding wheel, and ensure it is safely attached before operation. The fitting of the support handle is also described, noting it can be attached to either side of the tool by turning it counterclockwise to remove and clockwise to tighten to the recommended torque.
Operating instructions include a daily free speed check using a tachometer, which should always be performed after service and with grinding equipment detached. The free speed must not exceed the rated speed marked on the tool. Safety warnings for operation emphasize the absolute necessity of using the tool with the recommended wheel guard, ensuring it is correctly positioned and undamaged. Further warnings advise wearing appropriate personal protection equipment, protective gloves, keeping the working area clear of other people, safely attaching the workpiece, draining air pressure before connecting to the air supply, and never tampering with the throttle lever or security mechanism. Users must ensure that abrasive equipment and attachment parts comply with national regulations, are not cracked or damaged, and have a maximum speed greater than or equal to the tool's rated speed. The tool should always be held with two hands, maintaining a secure footing, and operated in the recommended working direction. Rotating parts must never be touched when the tool is running or connected to the air line, and the tool should never be used above head height. Any abnormally loud noises or vibrations during use warrant immediate cessation of operation.
Maintenance features are extensive, emphasizing that service must only be performed by authorized workshops or qualified service technicians. Preventive maintenance is recommended at regular intervals, with a general guideline to clean appropriate parts accurately and replace any defective or worn parts if no detailed information is provided. Overhaul is recommended every six months, or more frequently for heavy-duty service or if the tool is not running properly. To extend the life of gears, bearings, and sealings, more frequent grease changes and replacements are advised. Angle gear grease should be changed after a maximum of 1000 hours, using Rhenus LKR03 (semifluid type) with a maximum amount of 11 cm³. The air inlet strainer should be cleaned frequently to prevent clogging and decreased capacity.
A significant warning regarding polymer hazard is provided, as the vanes contain PTFE. Users are advised not to smoke when servicing the product, prevent PTFE particles from contacting open fire, glow, or heat, wash motor components with cleaning fluid (not blown clear with an air line), and wash hands before any other activity. This is to prevent polymer fume fever.
Replacement of vanes is recommended when a power drop is experienced, as delayed replacement can damage other motor parts. Using an oil lubricator to dose oil into the air inlet can increase the life length of the vanes.
Troubleshooting procedures are outlined for common issues such as the tool not starting, inconsistent idling speed, low power, too hot angle gear, tool too cold by exhaust, fast vane wear, fast gear wear, tool starting unexpectedly, vibrations, too high idle speed, and abnormal or high sound. Solutions range from checking air connections and pressure, cleaning air filters, and replacing damaged parts to adjusting grease levels and assembling exhaust hoses. Many of these actions are marked with an asterisk, indicating they must only be performed by authorized workshops or qualified service technicians.
Finally, recycling information is provided, stating that the product and its components should be dismantled and recycled according to local legislation. Batteries should be handled by national battery recovery organizations. The document lists various parts and their corresponding recyclable materials, such as housing (metal, aluminum), insulation sleeve (plastics, other, TPU), vane motor (metal, steel), spindle complete (metal, steel), wheel guard (metal, steel), end cover (metal, steel), screws (metal, steel), autobalancer (metal, steel), bushing (metal, brass), inlet (metal, steel), lever complete (metal, steel), and adapter (metal, steel). A note reiterates the health and safety recommendations concerning PTFE for the vanes.
General| Free speed | 12000 rpm |
|---|---|
| Wheel dimensions | 125 mm |
| Power | 1.7 kW |
| Weight | 2.2 kg |
| Air consumption at free speed | 32 l/s |
| Vibration level (3 axes) | 3.5 m/s² |
| Minimum hose size | 13 mm |
| Sound standard | ISO15744 |
| Bevel gear | Yes |
| Air inlet thread size | 1/4 in |
