Makita 7104L Instruction Manual page 7

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 long in the No.1 set posi-
tion and 120 mm 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.
► 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
2
3
► 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.
Hole length to be cut
52.5 mm
52.5 mm - 105 mm
77.5 mm - 130 mm
1
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 posi-
tion, 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
When enlarging a hole both transversely and longitudi-
nally, cut the holes in the order indicated from No.(1) to
(6) as shown. This makes for more easy and efficient
hole enlargement.
► 1 . Front base
WARNING:
• Never attempt to enlarge a hole with the cut-
ter chain still within the hole. This will cause
unstable and dangerous operation.
• Never angle the cutter chain when cutting the
first hole, or a dangerous kickback may result.
Always have the cutter chain set to the perpen-
dicular position when cutting the first hole.
7 ENGLISH
1
2
3
4
5
1
(3) (2) (1)
(6) (5) (4)