MAKITA 3612BRA (01) PDF Document

The specifications for the MAKITA 3612BRA are as follows:

Make sure your extension cord is in good condition. When using an extension cord, be sure to use one heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating. The table below shows the correct size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gage. The smaller the gage number, the heavier the cord.

When using the MAKITA 3612BRA, adhere to the following safety rules regarding bits:

1. Handle the bits very carefully.

2. Check the bit carefully for cracks or damage before operation. Replace cracked or damaged bit immediately.

3. Avoid cutting nails. Inspect for and remove all nails from the workpiece before operation.

4. Hold the tool firmly with both hands.

5. Keep hands away from rotating parts.

6. Make sure the bit is not contacting the workpiece before the switch is turned on.

7. Before using the tool on an actual workpiece, let it run for a while. Watch for vibration or wobbling that could indicate improperly installed bit.

8. Be careful of the bit rotating direction and the feed direction.

9. Do not leave the tool running. Operate the tool only when hand-held.

10. Always switch off and wait for the bit to come to a complete stop before removing the tool from workpiece.

11. Do not touch the bit immediately after operation; it may be extremely hot and could burn your skin.

Always be sure that the tool is switched off and unplugged before installing or removing the bit.

To install the bit:

1. Insert the bit all the way into the collet cone and withdraw it very slightly (approx. 2 mm; 1/16″).

2. Press the shaft lock to keep the shaft stationary and use the wrench to tighten the collet nut securely.

3. When using smaller shank bits, first insert the appropriate collet sleeve into the collet cone, then install the bit as mentioned above.

To remove the bit, follow the installation procedure in reverse.

CAUTION: Do not tighten the collet nut without inserting a bit or install smaller shank bits without using a collet sleeve. Either can lead to breakage of the collet cone.

To adjust the depth of cut:

1. Place the tool on a flat surface. Loosen the lock lever and lower the tool body until the bit just touches the flat surface.

2. Press the lock lever down to lock the tool body.

3. Now lower the stopper pole until it makes contact with the stopper block. The stopper pole can be moved rapidly by depressing the fast-feed button.

4. Raise the stopper pole until the desired depth of cut is obtained. The depth of cut is equal to the distance between the stopper pole and the stopper block.

5. Stopper pole travel can be checked with the scale label (1 mm or about 3/64″ per graduation) on the tool body.

6. Minute depth adjustments can be obtained by turning the stopper pole (1.5 mm or about 1/16″ per turn).

The stopper block has adjusting hex bolts which move 1 mm (about 3/64″) per turn. They are convenient for making stepped cuts. To adjust the hex bolts, first loosen the hex nuts on the hex bolts with the wrench and then turn the hex bolts. After obtaining the desired position, tighten the hex nuts.

By turning the nylon nut, the upper limit of the tool body can be adjusted. When the tip of the bit is retracted more than required in relation to the base plate surface, turn the nylon nut to lower the upper limit.

CAUTION:

Do not lower the nylon nut too low or the bit will protrude dangerously.

Before operating the tool, check to be sure that the router automatically rises to the upper limit.

Since excessive cutting may cause overload of the motor or difficulty in controlling the tool, the depth of cut should not be more than 15 mm (5/8″) at a pass when cutting grooves. When you wish to cut grooves more than 15 mm (5/8″) deep, make several passes with progressively deeper bit settings.

To start the tool, move the switch lever to the “ON” position. To stop, move the switch lever to the “OFF” position.

CAUTION: Make sure the shaft lock is released before the switch is turned on.

Set the tool base on the workpiece to be cut without the bit making any contact. Then turn the tool on and wait until the bit attains full speed. Lower the tool body and move the tool forward over the workpiece surface, keeping the tool base flush and advancing smoothly until the cutting is complete.

When doing edge cutting, the workpiece surface should be on the left side of the bit in the feed direction.

NOTE: Moving the tool forward too fast may cause a poor quality of cut, or damage to the bit or motor. Moving the tool forward too slowly may burn and mar the cut. The proper feed rate will depend on the bit size, the kind of workpiece and depth of cut. Before beginning the cut on the actual workpiece, it is advisable to make a sample cut on a piece of scrap lumber. This will show exactly how the cut will look as well as enable you to check dimensions.

The straight guide is effectively used for straight cuts when chamfering or grooving. When using the straight guide, be sure to install it on the right side in the feed direction to keep it flush with the side of the workpiece.

1. Install the straight guide on the guide holder with the wing bolt (B). Tighten the wing bolt (B) only tight enough to hold the straight guide temporarily.

2. Insert the guide holder into the holes in the tool base and tighten the wing bolts (A).

3. Adjust the distance between the bit and the straight guide by turning the fine adjusting screw (1.5 mm or about 1/16″ per turn).

4. At the desired distance, tighten the wing bolt (B) to secure the straight guide in place.

5. When cutting, move the tool with the straight guide flush with the side of the workpiece.

Wider straight guide of desired dimensions may be made by using the convenient holes in the guide to bolt on extra pieces of wood. When using a board-jointing bit, attach pieces of wood to the straight guide which have a thickness of more than 15 mm (5/8″) so that the bit does not strike the straight guide.

Trimming, curved cuts in veneers for furniture and the like can be done easily with the trimmer guide. The guide roller rides the curve and assures a fine cut. Be sure to install it on the right side in the feed direction.

1. Install the trimmer guide on the guide holder with the wing bolt (B). Tighten the wing bolt (B) only tight enough to hold the trimmer guide temporarily.

2. Insert the guide holder into the holes in the tool base and tighten the wing bolts (A).

3. Adjust the distance between the bit and the trimmer guide by turning the fine adjusting screw (1.5 mm or about 1/16″ per turn).

4. At the desired distance, tighten the wing bolt (B) to secure the trimmer guide in place.

5. When adjusting the guide roller up or down, loosen the wing bolt (C). After adjusting it, tighten the wing bolt (C) securely.

6. When cutting, move the tool with the guide roller riding the side of the workpiece.

The templet guide provides a sleeve through which the bit passes, allowing use of the router with templet patterns.

1. To install the templet guide, loosen the screws on the tool base, insert the templet guide and then tighten the screws.

2. Secure the templet to the workpiece.

3. Place the tool on the templet and move the tool with the templet guide sliding along the side of the templet.

CAUTION: Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance.

1. Remove and check the carbon brushes regularly.

2. Replace when they wear down to the limit mark.

3. Keep the carbon brushes clean and free to slip in the holders.

4. Both carbon brushes should be replaced at the same time. Use only identical carbon brushes.

5. Use a screwdriver to remove the brush holder caps.

6. Take out the worn carbon brushes, insert the new ones and secure the brush holder caps.

If other types of carbon brushes are employed in tools equipped with an electric brake, the electric brake may not operate properly.