Makita 7104L Instruction Manual page 6

Enlarging hole
1. Transverse (width) enlargement
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► 1. Hex bolts 2. Gauge plate 3. Travel distance (D)
4. Lever (B)
A hole can be enlarged transversely by adjusting the
gauge plate. Max. expansion of hole width is 15 mm
(5/16")
EXAMPLE When cutting a hole 25 mm (1") wide
using a cutter chain 18 mm (23/32"), proceed as
follows:
• Push the lever (B) away from you. Loosen the
hex bolts securing the gauge plate.
• Adjust the gauge plate so that the travel dis-
tance (D) is 7 mm (9/32"); that is, 25 mm (1") -
18 mm (23/32") = 7 mm (9/32"). Tighten the hex
bolts to secure the gauge plate.
• Cut the first hole with the lever (B) pushed away
from you. Then pull the lever (B) toward you and
cut again to enlarge the hole.
NOTE:
• The gauge plate is factory adjusted for cutting a
hole 30 mm (1-3/16") wide using a cutter chain
18 mm (23/32").
2. Longitudinal (length) enlargement
Hole length can be determined in three steps shown in
the table below.
Cutter chain position
Original position
No.1 set position
No.2 set position
NOTE:
• A hole a little longer than predetermined may be
cut depending upon the cutter chain tension.
• The adjusting hex bolts are factory adjusted for
cutting holes 90 mm (3-9/16") long in the No.1
set position and 120 mm (4-3/4")long in the No.2
set position.
Push down the right-hand grip while raising the left-
hand grip. Make sure that the adjusting hex bolt slips
into place securely.
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3
Hole length to be cut
52.5 mm (2-1/16")
52.5 mm (2-1/16") - 105 mm (4-1/8")
77.5 mm (3-1/16") - 130 mm (5-1/8")
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► 1. Lever (C)
Loosen the hex nut securing the adjusting hex bolt. Turn
the adjusting hex bolt until the cutter chain reaches the
desired position, then tighten the hex nut.
► 1. Adjusting hex bolt for No. 1 set position 2. Lever
(C) 3. Adjusting hex bolt for No. 2 set position
WARNING:
• When using pressure to turn the adjusting
hex bolt or hex nut, be careful not to allow the
adjusting hex bolt to slip off the set position.
To bring the cutter chain back to the perpendicular (original)
position, pull the lever (C) toward you while pressing down
on the right-hand grip and slightly raising the left-hand grip
and move the cutter chain back to its original position.
When cutting a hole, first use the perpendicular position, then No.1
set position and finally No.2 set position. Always safely hook the tool
head back onto the hook when changing the cutter chain position.
► 1. Original position 2. No.1 set position 3. No.2 set
position 4. Indication plate 5. Ruler
6 ENGLISH
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