Functional Description; Replacing Carbon Brushes - Makita PC1100 Manual De Instrucciones

WARNING:
DO NOT let comfort or familiarity with product
(gained from repeated use) replace strict adherence
to safety rules for the subject product. MISUSE or
failure to follow the safety rules stated in this instruc-
tion manual may cause serious personal injury.

FUNCTIONAL DESCRIPTION

CAUTION:
• Always be sure that the tool is switched off and
unplugged before adjusting or checking function on the
tool.
Switch action (Fig. 1)
CAUTION:
• Before plugging in the tool, always check to see that
the switch trigger actuates properly and returns to the
"OFF" position when released.
To start the tool, simply pull the switch trigger. Release
the switch trigger to stop.
For continuous operation, pull the switch trigger and then
push in the lock button.
To stop the tool from the locked position, pull the switch
trigger fully, then release it.
Level planing (Fig. 2 & 3)
To level a surface, the base of the planer should be
aligned with the diamond wheel. The front roller should
be adjusted (use hex wrench) upward to the level
required for the desired stock removal amount.
To change the amount of stock (concrete) removed,
loosen the hex socket head bolts on the grip holder with
the hex wrench. Raise or lower the front roller to adjust
the gap between it and the diamond wheel. The differ-
ence is the stock removal amount. Then secure the hex
socket head bolts very carefully.
NOTE:
• Maximum stock removal should be less than 2.5 mm.
Tilting base for smoother planing
For smooth removal of a given surface roughness or tex-
ture, tilting the base is helpful. Use the hex wrench to
loosen the two hex socket head bolts securing the base
on either side. (Fig. 4)
Use a screwdriver to lower the three screws on the base
by turning screws on the base clockwise. (Fig. 5)
Use a square or ruler to obtain the desired base angle in
relation to the diamond wheel. Then secure carefully the
hex socket head bolts on either side of the base. Adjust
center of base near wheel so that it is on the same level
as the wheel. (Fig. 6)
NOTE:
• After base adjustment, turn the three screws on the
base counterclockwise until the heads are flush with
the back side of the base. Turn gently or base adjust-
ment will be thrown off.
Base adjustment to compensate for wheel wear
With long use, the diamond wheel will wear and thus cre-
ate a gap with the planing surface so that performance
becomes poor. Check the tool after every 4 or 5 hours of
use.
6
If the wheel and base surfaces are not aligned, loosen
the hex socket head bolts securing the base. Turn the
screws on the base clockwise and adjust the base so as
to be level with the wheel surface. Retighten the bolts
and then gently turn the screws counterclockwise until
flush with the back side of the base. The screws should
not come loose during operation.
Dust cover adjustment (Fig. 7)
The dust cover should be either flush with the diamond
wheel surface or very slightly above (when tool is
inverted) 0.5 mm. Suction/pickup will be poor if they are
not approximately on the same level.
To adjust the dust cover, grip it on the outside; turn clock-
wise to raise, counterclockwise to lower.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Installing or removing diamond wheel (Fig. 8)
To replace a worn diamond wheel with a new one, press
in the shaft lock to hold the shaft steady, then loosen the
lock nut counterclockwise with the lock nut wrench pro-
vided.
NOTE:
• The ordinary diamond wheels on the market have no
exhaust holes, so dust evacuation is poor. Also, if the
installing hole is not of the exact diameter, tool vibration
occurs and accidents can occur. ALWAYS USE A
MAKITA OFFSET DIAMOND WHEEL.
Dust bag (Fig. 9)
To install dust bag, press bag fitting to inside, open
mouth of bag and slip onto dust port.
Remove dust bag when it begins to touch cutting surface.
This is a sign that it is full. Failure to empty bag will lead
to poor suction/pickup.
OPERATION
Planing in corners (Fig. 10 & 11)
Flush planing of corners is possible after first removing
the dust cover.
Turn dust cover clockwise until it stops, light toward you
to remove.
MAINTENANCE
CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.
• Never use gasoline, benzine, thinner, alcohol or the
like. Discoloration, deformation or cracks may result.

Replacing carbon brushes

Remove and check the carbon brushes regularly.
Replace when they wear down to the limit mark. Keep
the carbon brushes clean and free to slip in the holders.
Both carbon brushes should be replaced at the same
time. Use only identical carbon brushes. (Fig. 12)
Use a screwdriver to remove the brush holder caps. Take
out the worn carbon brushes, insert the new ones and
secure the brush holder caps. (Fig. 13)