RIDGID JOBMAX R8223409 (01) PDF Document

The RIDGID JOBMAX R8223409 Rotary Cutter Head should be used only with base model Series A, B, D, and E.

• Series A includes model R8223400, R8223500

• Series B includes model R2850, R2851

• Series D includes model P246

• Series E includes model R8620

Before using the RIDGID JOBMAX R8223409, you must read and understand the operator’s manual for the tool head, the power base, and, if applicable, the battery pack and charger. Ensure compatibility and proper fit of the head and power base before using.

The RIDGID JOBMAX R8223409 power tool is intended to function as a grinder, sander, or cut-off tool. Read all safety warnings, instructions, illustrations, and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury.

• Operations such as wire brushing, polishing or carving are not recommended to be performed with this power tool. Operations for which the power tool was not designed may create a hazard and cause personal injury.

• Do not use accessories which are not specifically designed and recommended by the tool manufacturer. Just because the accessory can be attached to your power tool, it does not assure safe operation.

• The rated speed of the accessories must be at least equal to the maximum speed marked on the power tool. Accessories running faster than their rated speed can break and fly apart.

• The outside diameter and the thickness of your accessory must be within the capacity rating of your power tool. Incorrectly sized accessories cannot be adequately controlled.

• The arbour size of wheels, sanding drums or any other accessory must properly fit the spindle or collet of the power tool. Accessories that do not match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause loss of control.

• Mandrel mounted wheels, sanding drums, cutters or other accessories must be fully inserted into the collet or chuck. If the mandrel is insufficiently held and/or the overhang of the wheel is too long, the mounted wheel may become loose and be ejected at high velocity.

• Do not use a damaged accessory. Before each use inspect the accessory such as abrasive wheels for chips and cracks, sanding drum for cracks, tear or excess wear. If power tool or accessory is dropped, inspect for damage or install an undamaged accessory. After inspecting and installing an accessory, position yourself and bystanders away from the plane of the rotating accessory and run the power tool at maximum no-load speed for one minute. Damaged accessories will normally break apart during this test time.

• Wear personal protective equipment. Depending on application, use face shield, safety goggles or safety glasses. As appropriate, wear dust mask, hearing protectors, gloves and workshop apron capable of stopping small abrasive or workpiece fragments. The eye protection must be capable of stopping flying debris generated by various operations. The dust mask or respirator must be capable of filtrating particles generated by your operation. Prolonged exposure to high intensity noise may cause hearing loss.

• Keep bystanders a safe distance away from work area. Anyone entering the work area must wear personal protective equipment. Fragments of workpiece or of a broken accessory may fly away and cause injury beyond immediate area of operation.

• Hold power tool by insulated gripping surfaces only, when performing an operation where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electric shock.

• Always hold the tool firmly in your hand(s) during the start-up. The reaction torque of the motor, as it accelerates to full speed, can cause the tool to twist.

• Use clamps to support workpiece whenever practical. Never hold a small workpiece in one hand and the tool in the other hand while in use. Clamping a small workpiece allows you to use your hand(s) to control the tool. Round material such as dowel rods, pipes or tubing have a tendency to roll while being cut, and may cause the bit to bind or jump toward you.

• Position the cord clear of the spinning accessory. If you lose control, the cord may be cut or snagged and your hand or arm may be pulled into the spinning accessory.

• Never lay the power tool down until the accessory has come to a complete stop. The spinning accessory may grab the surface and pull the power tool out of your control.

• After changing the bits or making any adjustments, make sure the collet nut, chuck or any other adjustment devices are securely tightened. Loose adjustment devices can unexpectedly shift, causing loss of control, loose rotating components will be violently thrown.

• Do not run the power tool while carrying it at your side. Accidental contact with the spinning accessory could snag your clothing, pulling the accessory into your body.

• 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.

• Do not operate the power tool near flammable materials. Sparks could ignite these materials.

• Do not use accessories that require liquid coolants. Using water or other liquid coolants may result in electrocution or shock.

Kickback is a sudden reaction to a pinched or snagged rotating wheel, sanding band or any other accessory. Pinching or snagging causes rapid stalling of the rotating accessory which in turn causes the uncontrolled power tool to be forced in the direction opposite of the accessory’s rotation.

For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge of the wheel that is entering into the pinch point can dig into the surface of the material causing the wheel to climb out or kick out. The wheel may either jump toward or away from the operator, depending on direction of the wheel’s movement at the point of pinching. Abrasive wheels may also break under these conditions.

Kickback is the result of power tool misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below.

• Maintain a firm grip on the power tool and position your body and arm to allow you to resist kickback forces. The operator can control torque reactions or kickback forces, if proper precautions are taken.

• Use special care when working corners, sharp edges etc. Avoid bouncing and snagging the accessory. Corners, sharp edges or bouncing have a tendency to snag the rotating accessory and cause loss of control or kickback.

• Do not attach a toothed saw blade. Such blades create frequent kickback and loss of control.

• Always feed the bit into the material in the same direction as the cutting edge is exiting from the material (which is the same direction as the chips are thrown). Feeding the tool in the wrong direction causes the cutting edge of the bit to climb out of the work and pull the tool in the direction of this feed.

• When using rotary files, cut-off wheels, high-speed cutters or tungsten carbide cutters, always have the work securely clamped. These wheels will grab if they become slightly canted in the groove, and can kickback. When a cut-off wheel grabs, the wheel itself usually breaks. When a rotary file, high-speed cutter or tungsten carbide cutter grabs, it may jump from the groove and you could lose control of the tool.

• Use only wheel types that are recommended for your power tool and only for recommended applications. For example, do not grind with the side of a cut-off wheel. Abrasive cut-off wheels are intended for peripheral grinding, side forces applies to these wheels may cause them to shatter.

• For threaded abrasive cones and plugs use only undamaged wheel mandrels with an unrelieved shoulder flange that are of correct size and length. Proper mandrels will reduce the possibility of breakage.

• Do not “jam” a cut-off wheel or apply excessive pressure. Do not attempt to make an excessive depth of cut. Overstressing the wheel increases the loading and susceptibility to twisting or snagging of the wheel in the cut and the possibility of kickback or wheel breakage.

• Do not position your hand in line with and behind the rotating wheel. When the wheel, at the point of operation, is moving away from your hand, the possible kickback may propel the spinning wheel and the power tool directly at you.

• When wheel is pinched, snagged or when interrupting a cut for any reason, switch off the power tool and hold the power tool motionless until the wheel comes to a complete stop. Never attempt to remove the cut-off wheel from the cut while the wheel is in motion otherwise kickback may occur. Investigate and take corrective action to eliminate the cause of wheel pinching or snagging.

• Do not restart the cutting operation in the workpiece. Let the wheel reach full speed and carefully re-enter the cut. The wheel may bind, walk up or kickback if the power tool is restarted in the workpiece.

• Support panels or any oversized workpiece to minimize the risk of wheel pinching and kickback. Large workpieces tend to sag under their own weight. Supports must be placed under the workpiece near the line of cut and near the edge of the workpiece on both sides of the wheel.

• Use extra caution when making a “pocket cut” into existing walls or other blind areas. The protruding wheel may cut gas or water pipes, electrical wiring or objects that can cause kickback.

• This product is not intended for use as a dental drill or in human or veterinary medical applications. Serious injury may result.

• Save these instructions. Refer to them frequently and use them to instruct others who may use this tool. If you loan someone this tool, loan them these instructions also.

• Speed: 0-22,000 r/min. (RPM)

• Collet: 1/8 in.

• Max. Cut-off Wheel Diameter: 2-1/8 in.

• Spindle Thread Size: M14

Assembly Warnings:

• Do not use this product if it is not completely assembled or if any parts appear to be missing or damaged. Use of a product that is not properly and completely assembled or with damaged or missing parts could result in serious personal injury.

• Do not attempt to modify this product or create attachments or accessories not recommended for use with this product. Any such alteration or modification is misuse and could result in a hazardous condition leading to possible serious personal injury.

Operation Warnings:

• Do not allow familiarity with products to make you careless. Remember that a careless fraction of a second is sufficient to inflict severe injury.

• Always wear eye protection with side shields marked to comply with ANSI Z87.1. Failure to do so could result in objects being thrown into your eyes, resulting in possible serious injury.

• Do not use any attachments or accessories not recommended by the manufacturer of this product. The use of attachments or accessories not recommended can result in serious personal injury.

1. Remove the battery pack from the power base or disconnect from power supply.

2. Place the head on the power base and push until the latches click into position. You may need to slightly rotate the collet to allow the head to seat fully. Pull on the head to make sure it is securely installed before proceeding.

NOTE: The head can be installed at 180° angles to best suit your application needs.

NOTE: To increase your leverage, attach the head to the power base while changing accessories.

1. Remove the battery pack from the power base or disconnect from power supply.

2. Lift the shoe release lever and remove the shoe from the head.

3. Press and hold the spindle lock, and rotate the shaft by hand until the spindle lock engages the shaft, preventing further rotation.

4. With the spindle lock engaged, use the wrench on the shoe to loosen the collet nut.

5. Insert the shank of the accessory into the collet until the shank bottoms out, then pull it out 1/16 in. to allow for expansion when the accessory gets hot.

6. With the spindle lock engaged, tighten the collet nut with the wrench until the accessory shank is gripped by the collet. Avoid excess tightening of the collet nut.

7. Reinstall shoe and lower shoe release lever to secure.

NOTICE: To prevent damage to the spindle or spindle lock, always allow motor to come to a complete stop before engaging the spindle lock.

The standard mandrel provided is used with cut-off discs, grinding wheels, emery wheels, and cut-off wheels. Other mandrels and accessories (not provided) which may be used with this tool include screw mandrels and drum mandrels.

To use the standard mandrel provided:

1. Remove the battery pack from the power base or disconnect from power supply.

2. Install the mandrel as described in Installing Accessories.

3. Lift the shoe release lever and remove the shoe from the head.

4. Press and hold the spindle lock.

5. Insert the slot end of the wrench on the shoe into the slot on top of the mandrel and unscrew.

6. Remove mandrel screw and one washer.

7. Place desired accessory over mandrel shaft and remaining washer; align accessory hole with mandrel hole.

8. Insert previously removed mandrel screw with washer through the accessory and mandrel shaft holes and tighten securely. NOTE: The washer should be placed between the mandrel screw and the accessory.

9. Reinstall shoe and lower the shoe release lever to secure.

NOTE: If the size of the accessory prevents reinstalling the shoe, lower the shoe release lever and set the shoe aside. When the job is complete, remove the accessory and reinstall the shoe before storing.

For precision work, it is important that all accessories be properly balanced. To balance an accessory, slightly loosen the collet nut and give the accessory or collet a 1/4 in. turn. You should be able to tell by the sound and feel if the accessory is running in balance. Continue adjusting in this fashion until the best balance is achieved. Replace accessories if they become damaged or unbalanced.

• Do not wear loose clothing or jewelry when operating tool. They could get caught in moving parts causing serious injury. Keep head away from tool and work area. Hair could be drawn into tool causing serious injury.

• Unsecured work could be thrown towards the operator causing injury.

1. Examine the rotary cutter accessories carefully. Damaged accessories can fly apart as they come up to speed and should not be used. The use of damaged accessories can result in serious personal injury.

2. Hold the tool and get used to its weight and balance.

3. Practice on scrap materials first to see how the tool operates. Keep in mind that the work is done by the speed of the tool and by the accessory in the collet. You should not lean on or push the tool into the work.

4. When using grinding bits, it is best to make a series of passes with the tool rather than attempt to do all the work in one pass. To make a cut, pass the tool back and forth over the work like you would a small paint brush. Cut a little material on each pass until you reach the desired depth. For most work, a gentle touch is best; you will have greater control, make fewer errors, and get the most efficient work out of the accessory.

5. Unless using the drywall bit, secure all work in a vise or clamp to a workbench to prevent it from moving under the tool.

6. Hold the tool in front and away from you, keeping the tool accessory clear of the workpiece.

7. Place the direction of rotation selector on the power base in the forward position. NOTICE: To prevent damage to the tool, only operate the rotary cutter in the forward direction.

8. Slide the trigger lock to the right, depress the switch trigger on the power base, then release the trigger lock to start the tool. Allow the motor and accessory to build up to full speed. NOTE: The trigger lock resets each time the trigger is released.

9. Lower the tool gradually until the accessory contacts the workpiece, then move the tool continuously at a steady, consistent pace. NOTE: When using the drywall bit, start at a 45° angle to allow the bit to enter the drywall and then move in a counterclockwise direction.

10. Use just enough pressure to keep the tool from chattering or bouncing. NOTE: Heavy pressure will decrease the tool’s speed and put a strain on the motor. The weight of the tool alone is adequate for most jobs.

11. Lift the tool away from the workpiece before turning off the tool.

If, after extended use, the trigger lock fails to reset, remove the rotary cutter head and blow out dust from around the trigger with an air hose. If this does not correct the issue, take the tool to an authorized factory service center for repair. Unintended actuation of the switch trigger could lead to serious injury.

When servicing, use only identical replacement parts. Use of any other parts could create a hazard or cause product damage.

GENERAL MAINTENANCE

Avoid using solvents when cleaning plastic parts. Most plastics are susceptible to damage from various types of commercial solvents and may be damaged by their use. Use clean cloths to remove dirt, dust, oil, grease, etc.

This product and some dust created by power sanding, sawing, grinding, drilling, and other construction activities may contain chemicals, including lead, known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands after handling.

Some examples of these chemicals are:

• lead from lead-based paints,

• crystalline silica from bricks and cement and other masonry products and,

• arsenic and chromium from chemically treated lumber.

Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.