RIDGID R7135 (01) PDF Document

The product specifications for the RIDGID R7135 mud mixer are as follows:

Chuck: 5/8 in.

Input: 120 Volts, AC only, 60 Hz, 11 Amps

No Load Speed: 0-800 RPM

Read all safety warnings, instructions, illustrations, and specifications provided with the RIDGID R7135. Failure to follow all instructions may result in electric shock, fire, and/or serious injury.

Work Area Safety:

Keep your work area clean and well-lit. Cluttered or dark areas invite accidents.

Do not operate the tool in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. The tool creates sparks which may ignite dust or fumes.

Keep children and bystanders away while operating the power tool to avoid distractions.

Personal Safety:

Stay alert, watch what you are doing, and use common sense. Do not use the tool while tired or under the influence of drugs, alcohol, or medication.

Use personal protective equipment, including always wearing eye protection. Protective equipment such as a dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.

Prevent unintentional starting by ensuring the switch is in the off-position before connecting to a power source, picking up, or carrying the tool.

Remove any adjusting key or wrench before turning the power tool on.

Do not overreach. Keep proper footing and balance at all times.

Dress properly. Do not wear loose clothing or jewelry. Keep hair, clothing, and gloves away from moving parts.

If devices are provided for dust extraction and collection, ensure they are connected and properly used.

Do not let familiarity from frequent use of tools lead to complacency and ignoring safety principles.

Do not use on a ladder or unstable support.

Plugs and Outlets: Power tool plugs must match the outlet. Never modify the plug in any way. Do not use adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce the risk of electric shock.

Body Contact: Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges, and refrigerators, to reduce the risk of electric shock.

Exposure to Elements: Do not expose the power tool to rain or wet conditions. Water entering the tool will increase the risk of electric shock.

Cord Care: Do not abuse the cord. Never use it for carrying, pulling, or unplugging the power tool. Keep the cord away from heat, oil, sharp edges, or moving parts. Damaged or entangled cords increase the risk of electric shock.

Outdoor Use: When operating outdoors, use an extension cord suitable for outdoor use. This reduces the risk of electric shock.

Damp Locations: If operating in a damp location is unavoidable, use a ground fault circuit interrupter (GFCI) protected supply to reduce the risk of electric shock.

Tool Usage:

Do not force the power tool. Use the correct tool for your application for a better and safer job.

Do not use the power tool if the switch does not turn it on and off. Any tool that cannot be controlled with the switch is dangerous and must be repaired.

Disconnect the plug from the power source before making adjustments, changing accessories, or storing the tool.

Store idle power tools out of the reach of children and do not allow persons unfamiliar with the tool or these instructions to operate it.

Maintenance and Service:

Maintain power tools and accessories. Check for misalignment or binding of moving parts, breakage, and any other condition that may affect operation. If damaged, have the tool repaired before use.

Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp edges are less likely to bind and are easier to control.

Keep handles and grasping surfaces dry, clean, and free from oil and grease.

Have your power tool serviced by a qualified repair person using only identical replacement parts to ensure safety is maintained.

Hold the tool with both hands at the intended handles. Loss of control can cause personal injury.

Ensure sufficient ventilation when mixing flammable materials to avoid a hazardous atmosphere.

Do not mix food. This tool is not designed for processing food.

Keep the cord away from the working area, as it may be entangled by the mixing paddle.

Ensure the mixing container is in a firm and secure position to prevent unexpected movement.

Ensure that no liquid splashes against the tool’s housing to prevent damage and electric shock.

Follow the instructions and warnings for the material to be mixed, as it may be harmful.

If the tool falls into the material being mixed, unplug it immediately and have it checked by a qualified repair person.

Do not reach into the mixing container with your hands or insert other objects while mixing.

Start up and run down the tool in the mixing container only to prevent uncontrolled spinning or bending of the paddle.

Always wear eye protection with side shields marked to comply with ANSI Z87.1.

Protect your lungs by wearing a face or dust mask if the operation is dusty.

Protect your hearing by wearing hearing protectors during extended periods of operation.

Inspect tool cords periodically and, if damaged, have them repaired. Always be aware of the cord’s location.

Check for damaged parts before use. A guard or other part that is damaged should be properly repaired or replaced by an authorized service center.

The signal words indicate the level of risk associated with a hazard:

DANGER: Indicates a hazardous situation which, if not avoided, will result in death or serious injury.

WARNING: Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION: Indicates a hazardous situation that, if not avoided, may result in minor or moderate injury.

NOTICE: Indicates information considered important, but not related to a potential injury (e.g., messages relating to property damage).

When using the RIDGID R7135 at a distance from a power source, use an extension cord with the capacity to handle the current the tool will draw. An undersized cord will cause a drop in line voltage, resulting in overheating and loss of power. Use the chart below to determine the minimum wire size (A.W.G.) required. Only use round jacketed cords listed by Underwriter’s Laboratories (UL). For outdoor work, use a cord designated with “WA” or “W” on its jacket.

Note: Used on 12 gauge – 20 amp circuit. AWG = American Wire Gauge.

You may use the RIDGID R7135 mud mixer for mixing thinset, grout, mortar, paint, drywall, concrete, and leveling compounds.

Switch Trigger:

To turn the tool ON, depress the switch trigger. To turn it OFF, release the switch trigger and allow the chuck to come to a complete stop.

Lock-On Button:

The lock-on feature is convenient for continuous use over extended periods. To lock-on:

1. Depress the switch trigger.

2. Push in and hold the lock-on button, located above the trigger.

3. Release the switch trigger.

4. Release the lock-on button and the mixer will continue running.

To release the lock, depress and release the switch trigger. If the lock-on feature is engaged and the mixer becomes disconnected from the power supply, disengage the lock-on feature immediately.

The speed selection, material type, and mixing time will affect the consistency and density of the material being mixed. Rotate the speed selector counterclockwise to increase speed and clockwise to decrease speed. The mixing speed can be set up to 800 RPMs.

This mud mixer is designed for use with the included RIDGID mixing paddle only (part no. 039850001057). Before first use, assemble the paddle by placing the threaded end of the paddle shaft into the head and rotating clockwise to secure it firmly.

To install the paddle:

1. Unplug the mixer.

2. Insert the chuck key into the chuck and twist counterclockwise to open the chuck jaws.

3. Open the chuck jaws to a point where the opening is slightly larger than the paddle shaft. Raise the front of the mixer slightly to keep the paddle from falling out.

4. Insert the paddle straight into the chuck jaws. Do not insert it at an angle, as this could cause the paddle to be thrown from the mixer.

5. Tighten the chuck jaws securely on the paddle using the provided chuck key.

6. Remove the chuck key.

To remove the paddle:

1. Unplug the mixer.

2. Loosen the chuck jaws using the provided chuck key.

3. Remove the paddle.

4. Remove the chuck key.

Always mix and prepare materials according to the material manufacturer’s instructions.

1. Pour materials to be mixed into a suitable container. Do not overfill it; leave enough room to prevent spillage and splashing.

2. Secure the container to keep it from turning as the paddle rotates.

3. Select the appropriate speed setting. It is recommended to begin mixing at low speeds to ensure wet and dry materials are evenly mixed.

4. Plug the mixer into a power source.

5. Hold the mixer firmly with both hands and lower the paddle into the container.

6. Depress the switch trigger to start mixing. Do not lock the switch on for jobs where the mixer may need to be stopped suddenly.

7. If the mixer is sluggish or struggles to mix the material, lower the speed setting.

8. Stop and start the unit intermittently to allow the material to absorb moisture (or slake). The type of material determines how long and how often this is needed.

9. When mixing is complete, stop the tool and remove the paddle. Clean the paddle and store for later use.

When servicing, use only identical RIDGID replacement parts. Avoid using solvents when cleaning plastic parts, as most plastics are susceptible to damage. Use clean cloths to remove dirt, carbon dust, etc. Do not let brake fluids, gasoline, petroleum-based products, or penetrating oils come in contact with plastic parts, as they contain chemicals that can damage, weaken, or destroy plastic.

Electric tools used on materials like fiberglass, wallboard, or plaster are subject to accelerated wear. If you work with these materials, it is extremely important to clean the tool using compressed air.

Lubrication: All bearings in the RIDGID R7135 are lubricated with a sufficient amount of high-grade lubricant for the life of the tool under normal operating conditions. No further lubrication is required.

The chuck can be removed and replaced with a new one. Follow these steps:

1. Unplug the tool.

2. Open the chuck jaws using the provided chuck key.

3. Insert a 5/16 inch (8 mm) or larger hex key into the chuck and tighten the chuck jaws securely.

4. Tap the hex key sharply with a mallet in a clockwise direction. This will loosen the chuck screw for easy removal.

5. Open the chuck jaws and remove the hex key. Remove the chuck screw by turning it in a clockwise direction. Note that the screw has left-hand threads.

6. Insert the hex key back into the chuck and tighten the chuck jaws securely. Tap sharply with a mallet in a counterclockwise direction. This will loosen the chuck on the spindle. It can now be unscrewed by hand.

If the chuck becomes loose on the spindle and develops a wobble, or the chuck screw becomes loose, you can tighten it as follows:

1. Unplug the tool.

2. Open the chuck jaws.

3. Insert a hex key into the chuck and tighten the jaws securely.

4. Tap the hex key sharply with a mallet in a clockwise direction. This will tighten the chuck on the spindle.

5. Open the chuck jaws and remove the hex key.

6. Tighten the chuck screw.

The RIDGID R7135 has externally accessible brush assemblies that should be periodically checked for wear.

1. Unplug the tool.

2. With a flat head screwdriver, remove the brush caps. The brush assembly is spring-loaded and will pop out.

3. Remove the brush assembly (brush and spring) and check for wear.

4. Replace both brushes when either has less than 1/4 inch of carbon remaining. Do not replace only one side.

5. Reassemble using new brush assemblies. Ensure the curvature of the new brush matches the curvature of the motor and that the brush moves freely in the brush tube.

6. Replace the brush cap and tighten securely. Do not overtighten.

NOTE: When the brushes wear down to a predetermined level, the tool will automatically switch off, preventing damage to the armature.