Hitachi C 12FSA, Technical Data And Service Manual

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(8) Crown modeling cutting
This machine can cut two types of crown molding workpieces by combining the miter and bevel cutting
operations (for USA).
Fig. 36 shows two common crown molding types having angles of (
θ
) 38˚ and 45˚. For the typical crown
molding fittings, see Fig. 37.
Fig. 36 Fig. 37
Ceiling
B Lower surface
A Upper surface ceiling
Wall
Wall
Type of
crown molding
To process crown molding at
positions and in Fig. 37 To process crown molding at
positions and in Fig. 37
Miter angle
setting
Bevel angle
setting
Miter angle
setting
Bevel angle
setting
Right 30˚
( mark) Right 35.3˚
( mark) Left 30˚
( mark) Right 30˚
( mark) left 35.3˚
( mark) Left 30˚
( mark)
The table below shows the miter angle and the bevel angle settings that are ideal for the two crown molding
types.
NOTE: For convenience, positive stops are provided for both the miter setting and the bevel setting positions.
For miter cut setting
If the turn table has been set to either of the angles described, move the turn table adjusting side handle a little
to the right and left to stabilize the position and to properly align the miter scale and the tip of the indicator
before the operation starts.
For bevel cut setting
Move handle on miter section to the right and left and check that the position is stable and the angle scale and
the tip of the indicator are properly aligned. Then tighten the clamp lever.
45˚ type
Right 31.6˚
( mark) Left 33.9˚
( mark) Right 33.9˚
( mark) Left 31.6˚
( mark) Left 33.9˚
( mark)
38˚ type
3
1 4
2
Right 33.9˚
( mark)
(1) Setting to cut crown molding at positions and in Fig. 37 (See Fig. 38, tilt the head to the left.):
Turn the turn table to the right and set the miter angle as follows:
For 45˚ type crown moldings: 35.3˚ ( mark)
For 38˚ type crown moldings: 31.6˚ ( mark)
Turn the head to the left and set the bevel angle as follows:
For 45˚ type crown moldings: 30˚ ( mark)
For 38˚ type crown moldings: 33.9˚ ( mark)
Position the crown molding so that the lower surface ( in Fig. 36) contacts the fence as indicated in
Fig. 39.
1
4
1
2
3 A