HITACHI C 15FB User guide

MODEL C 15FB

1. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY:

The circled numbers in the descriptions below correspond to the item numbers in the Parts List and exploded
assembly diagram.

[CAUTION] Prior to commencing disassembly (including replacement of the saw blade), ensure that the

plug is disconnected from the power source.

1-1. Disassembly:

(1) Disassembly of the Base and Turn Table:

Tools Required:

17 mm Box Spanner

•

A. After removing the M10 x 65 Bolt [120] and

M10 x 65 Screw (G) [124] which fix the Hinge
[119], the Hinge [119] and upper portions
(Gear Case, etc.) can be separated from the
main body.

B. Remove the four M10 x 40 Bolts [66] which

fix Vise (B) [82], and separate Vise (B) [82]
from the Base Ass'y [103].

C. Remove the two M6 x 16 -Hd. Machine

Screws [127]. The Turn Table [87] can then
be removed by pushing it up lightly from the
rear portion of the Base Ass'y [103].

[NOTE] When removing the Hinge [119], be

very careful not to lose the D12.7 Steel
Ball [117] and Sprint (C) [118].

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(2) Disassembly of the Spring Section and the Sleeve:

Tools Required:

17 mm Wrench, 10 mm Wrench, 6 mm Hex. Bar Wrench, and

•

Plus Screwdriver

A. This step of disassembly is dangerous and requires close

attention at all times. Particular caution is necessary after
releasing the fixing device (paragraph D.).

B. Push the Gear Case [53] forward and down to its lowered

position, and lock it in that position with the fixing device
(push in the Set Pin [97] to engage the Grip [100]).

C. Loosen the M10 Lock Nut [96], and screw the M10 x 40 Bolt

[95] fully into the Hinge [119].

D. Being very careful as cautioned above, release the fixing

device (Set Pin [97] and Grip [100]) and slowly and carefully
raise the Gear Case [53].

E. Loosen the two M6 x 10 Hexagon Socket Hd. Set Screws

[54], and remove the M12 Lock Nut [92] and M12 Nut [93].
Next, gently pull out the Hinge Shaft [102]. Finally, loosen
the two M4 x 10 Flat Hd. Screws [65], take off the Spring
Cover [68], and take out the Spring [67] and Sleeve [69].

(3) Disassembly of the Saw Cover Section:

Tools Required:

Plus Screwdriver

•

The Saw Cover Ass'y [3] can be disassembled by removing the
M4 x 10 -Hd. Machine Screws [15] and four D5 x 90 -Hd.
Tapping Screws [13] However, please note that to remove two
of the four D5 x 90 -Hd. Tapping Screws [13] it is necessary
to insert the screwdriver through the holes at either end of the
Arrow Mark on the Saw Cover which indicates the rotational
direction of the saw blade.

Insert screwdriver through
Arrow Mark holes for
disassembly and reassembly.

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(4) Disassembly of the Switch and Handle Section:

Tools Required:

Plus Screwdriver

•

A. When only the Switch [22] must be disassem-

bled, first loosen the two M5 x 20 -Hd.
Machine Screws [18] and M5 x 16 -Hd.
Machine Screw [16] which fix the Handle [20].
Then loosen the two M5 x 12 -Hd. Machine
Screws [27] and two D4 x 25 Tapping Screws
[35] which fix the Handle Cover [25]. The
Handle [20] can then be removed from the
Gear Case [53].

B. After loosening the D4 x 10 -Hd. Tapping

Screws [21], the Switch [22] can be separated
from the Handle [20].

(5) Disassembly of the Spindle Section and stopper Pin:

Tools Required:

Plus Screwdriver, Pliers, Wooden or Plastic Hammer

•

A. Remove the Saw Cover Ass'y [3] by following the disassem-

bly procedures in paragraph (3), above.

B. After extracting the D7 E-Type Retaining Ring [37] from the

Stopper Pin [52], the Stopper Pin [52] and Gauge Spring
[38] can be taken out.

C. After loosening the three M6 x 25 Flat Hd. Screws [74],

gently tap on the saw cover side of the Gear Case [53] to
loosen and remove the Spindle Gear Ass'y [75].

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(6) Disassembly of the Armature Ass'y and Stator Ass'y:

Tools Required:

Plus Screwdriver, Nippers, Wooden or Plastic Hammer

•

1. Disassembly of the Armature Ass'y:
A. Remove the Saw Cover Ass'y [3] and handle Cover [25] by following the disassembly procedures in

paragraphs (3) and (4), above.

B. Remove the two leadwires of the Stator Ass'y [46] from the Switch [22]. As there is another leadwire

connected at the Connector [24], cut off the wires as closely to the Connector as possible.

C. Remove the two Brush Caps [55] from the Housing Ass'y [84], and take out the two Carbon Brushes

[40].

D. Remove the Armature Ass'y [36] from the Housing Ass'y [84].

2. Disassembly of the Stator Ass'y:
A. Loosen the two D4 x 10 -Hd. Tapping Screws [41], and remove the Tail Cover [42] from the Housing

Ass'y [84].
B. Disconnect the two Stator Brush Terminal Ass'ys [158] from the Brush Holders [56].
C. Loosen the two M5 x 75 -Hd. Machine Screws [48] which fix the Stator Ass'y [46]. Then tap gently on

the Gear Case mounting end of the Housing Ass'y [84] to loosen and remove the Stator Ass'y [46].

1-2. Reassembly:

Reassembly can be accomplished by following the disassembly procedures in reverse. However, special
attention should be given to the following items.
(1) If the Armature, Stator, Switch or any other electrical component has been replaced, conduct the following

tests:

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