Cutting aluminum extrusion (Fig. 19)
When securing aluminum extrusions, use spacer blocks or pieces of scrap as shown in Fig. 19 to prevent deformation of the aluminum. Use a cutting lubricant when cutting the aluminum extrusion to prevent
CAUTION:
Never attempt to cut thick or round aluminum extru- sions. Thick aluminum extrusions may come loose during operation and round aluminum extrusions can- not be secured firmly with this machine.
Adjusting for smooth handle action (Fig. 20)
The hex lock nut holding together the blade case and arm has been factory adjusted to assure smooth handle action up and down and to guarantee precise cutting. Do not tamper with it.
Should looseness develop at the blade case and arm connection, tighten the hex lock nut using a wrench while holding the bolt with another wrench.
After adjusting the hex lock nut, be sure the handle returns automatically to the initial, raised position from any position. If the hex lock nut is too loose, the cutting accuracy will be affected; if it is too tight, it will be hard to work the handle up and down. Note that this is a self locking nut; it is a special type that does not loosen during normal use. It should not be over- tightened or replaced with other types of nuts.
Alignment for squareness (Fig. 21 & 22)
This machine was carefully adjusted and aligned for squareness of cut at the factory, but rough handling may have affected the alignment. If your machine is not aligned properly, perform the following.
Loosen the grip and set the turn base at zero degrees by turning the turn base. Tighten the grip securely and loosen the hex bolts on the guide fence. Square the side of the blade with the face of the guide fence using a triangular rule,
Installing holders and set plates (optional accessories) (Fig. 23)
The holders can be installed on either side as a convenient means of holding workpieces horizontally or workpieces to be cut repetitively into identical lengths. To install the holder, insert the holder through the hole in the set plate with the curved portion of the holder pointing upwards. Then slip the holder rods into the holes in the base. Tighten the holders securely with wing bolts.
Cutting repetitive lengths
When cutting several pieces of stock to the same length, ranging between 235 ± 400 mm, use of the set plate will facilitate more efficient operation. Align the cutting line on your workpiece with either the left or right side of the groove in the kerf board, and while holding the workpiece form moving, move the set plate flush against the end of the workpiece. Then secure the set plate with the wing bolt on the set plate.
Carrying machine (Fig. 15 & 24)
When carrying the machine, lower the handle fully and press the stopper pin to lock the handle in the lowered position. Secure the turn base by means of the grip. The machine can then be conveniently carried by the carrying grip.
WARNING:
Be sure that the machine is unplugged first.
MAINTENANCE
CAUTION:
Always be sure that the machine is switched off and unplugged before carrying out any work on the machine.
Replacement of carbon brushes (Fig. 25 & 26)
Replace carbon brushes when they are worn down to the limit mark. Both identical carbon brushes should be replaced at the same time.
To maintain product safety and reliability, repairs, maintenance or adjustment should be carried out by Makita Authorized Service Center.
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