Removing Or Installing Planer Blades - Makita M1901 Instruction Manual

Removing or installing planer
blades
CAUTION:
Tighten the blade installation bolts
carefully when attaching the planer blades to
the tool. A loose installation bolt can be dangerous.
Always check to see they are tightened securely.
CAUTION:
Handle the planer blades very
carefully. Use gloves or rags to protect your fin-
gers or hands when removing or installing the
blades.
CAUTION:
Use only the Makita wrench
provided to remove or install the planer blades.
Failure to do so may result in overtightening or insuf-
ficient tightening of the installation bolts. This could
cause an injury.
For tool with conventional planer
blades
To remove the planer blades on the drum, unscrew
the installation bolts with the socket wrench. The drum
cover comes off together with the blades.
► Fig.4: 1. Socket wrench 2. Bolts
► Fig.5: 1. Bolts 2. Drum 3. Planer blade 4. Drum
cover 5. Adjusting plate 6. Groove
To install the planer blades, do the following procedure.
1. Clean out all chips or foreign matter adhering to
the drum and planer blades.
2.
Choose planer blades of the same dimensions
and weight. Otherwise drum oscillation/vibration will
result, causing poor planing action and, eventually, tool
breakdown.
3. Use the blade gauge to set the planer blades
correctly. Put the planer blade on the gauge base. Apply
the cutting edge of the blade on the inside flank of the
gauge plate.
► Fig.6: 1. Inside flank of gauge plate 2. Blade edge
3. Planer blade 4. Adjusting plate 5. Screws
6. Heel 7. Back side of gauge base 8. Gauge
plate 9. Gauge base
4. Place the adjusting plate on the planer blade.
Press the adjusting plate so that its heel is flush with
the back side of gauge base. Tighten two screws on the
adjusting plate.
5. Slip the heel of the adjusting plate into the drum
groove, then fit the drum cover on it.
For the correct planer blade setting
Your planing surface will end up rough and uneven, unless the planer blade is set properly and securely. The planer
blade must be mounted so that the cutting edge is absolutely level, that is, parallel to the surface of the rear base.
Refer to some examples below for proper and improper settings.
6. Tighten all the installation bolts evenly and alter-
nately with the socket wrench.
7. Repeat the procedure above for the other blade.
For tool with mini planer blades
To replace the mini planer blades, do the following
procedure.
1. Carefully clean the drum surfaces and the drum
cover.
2. Unscrew the three installation bolts with the socket
wrench. Remove the drum cover, adjusting plate, set
plate and the mini planer blade.
► Fig.7: 1. Socket wrench 2. Bolts
3.
Use the blade gauge to set the planer blades
correctly. Put the mini planer blade on the gauge base.
Apply the cutting edge of the blade on the inside flank of
the gauge plate.
► Fig.8: 1. Screws 2. Adjusting plate 3. Planer blade
locating lugs 4. Gauge plate 5. Heel of
adjusting plate 6. Set plate 7. Inside flank of
gauge plate 8. Gauge base 9. Back side of
gauge base 10. Mini planer blade
4. Loosely attach the adjusting plate to the set plate
with the screws. Put the adjusting plate and set plate
on the gauge base. Fit the planer blade locating lugs on
the set plate into the mini planer blade groove.
5.
Apply the heel of the adjusting plate onto the back
side of the gauge base and tighten the screws. Check
the alignments carefully to ensure uniform cutting.
6. Slip the heel of the adjusting plate into the groove
of the drum.
7. Put the drum cover on the set plate and loosely fit
them onto the drum with the three bolts. Slip the mini
planer blade into the space between the drum and set
plate. Make sure that the planer blade locating lugs on
the set plate fit in the mini planer blade groove.
► Fig.9: 1. Mini planer blade 2. Groove 3. Set plate
4. Bolts 5. Drum cover 6. Drum 7. Adjusting
plate
8.
Adjust the mini planer blade position lengthway so
that the blade ends are clear and equidistant from the
housing on one side and the metal bracket on the other.
9. Tighten the three bolts with the socket wrench
provided and rotate the drum to check the clearances
between the blade ends and the tool body.
10. Check the three bolts for final tightness.
11. Repeat the procedure above for the other blade.
7 ENGLISH