Hitachi C 10FM Manual

POWER TOOLS
TECHNICAL DATA
AND
SERVICE MANUAL
MITER SAW
C 10FM
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
LIST No. E930 March 2000
C
MODEL
C 10FM

Page
CONTENTS
[ Business Section ]
1. PRODUCT NAME••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••1
2. MARKETING OBJECTIVE •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••1
3. APPLICATIONS••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••1
4. SELLING POINTS ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••1
4-1. Selling Point Descriptions ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••2
5. SPECIFICATIONS ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••3
6. COMPARISONS WITH SIMILAR PRODUCTS •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••4
7. PRECAUTIONS IN SALES PROMOTION ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••5
7-1. Instruction Manual ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••5
8. ADJUSTMENT AND OPERATIONALPRECAUTIONS •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••6
8-1.Confirmation of Saw Blade Lower Limit Positioning•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••6
8-2. How to Use the Vise Ass’y•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••6
8-3. Cutting Operation•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••7
9. PACKING •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••8
[ Service Section ]
10. PRECAUTIONS IN DISASSEMBLYAND REASSEMBLY••••••••••••••••••••••••••••••••••••••••••••••••••••••••9
10-1. Disassembly •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••9
10-2. Reassembly ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••15
10-3. Wiring Diagram •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••16
10-4. Lead Wire Precautions•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••16
10-5. No-load Current ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••17
10-6. Reassembly Requiring Adjustment •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••17
10-7. Lubrication ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••18
10-8. Product Precision •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••18
10-9. Tightening Torque ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••19
11. REPAIR GUIDE •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••20
12. STANDARD REPAIR TIME (UNIT) SCHEDULES •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••24
[ Appendix ]
Assembly Diagram for C 10FM ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••25
Notice for use
Specifications and parts are subject to change for improvement.
Refer to the Hitachi Power Tool Technical News for further information.

--- 1 ---
1. PRODUCT NAME
Hitachi Miter Saw, Model C 10FM
2. MARKETING OBJECTIVE
There has been persistent demand for a single-function miter saw (10" miter cutting) in the North American
markets. Responding to the market, Hitachi is pleased to introduce an inexpensive miter saw, Model C 10FM.
Accordingly, significant sales promotion and market share increases are anticipated.
3. APPLICATIONS
Cutting various types of wood workpieces
Cutting plywood, decoration panels, soft fiberboard and hardboard
Cutting aluminum sashes
4. SELLING POINTS
Lightweight
27.3 lbs. (12.4 kg)
for easy portability
(Note) Numerals in ( ) are identical with item numbers in "4-1. Selling Point Descriptions".
24T TCT blade cuts
2 x 6 at 90˚ miter
2 x 4 at 45˚ miter
Holder ass'y
optional
(1)
(3) Equipped with a debris
guard to restrict dispersion
of chips for enhanced safety
in operation
Press cutting
3-1/8" extra-tall high
fence allows crown
moldings to be cut
standing vertically
(4)
Left (2)
Right
Miter cutting

--- 2 ---
4-1. Selling Point Descriptions
(1) Press cutting
Press cutting with the head swiveling enables cutting square workpieces as large as shown in Table 1 in a single
sawing operation. (See Fig. 1.)
Fig. 1
Workpiece
Fig. 2
(2) Miter cutting facility
Maker
Model
Max. cutting
dimension
HITACHI
C 10FM
Height x Width
(H x W)
66 x 144 (2-19/32" x 5-11/16")
79 x 108 (3-1/8" x 4-1/4")
90 x 90 (3-9/16" x 3-9/16")
with aux. board width
19 mm (3/4")
Table 1 (Unit: mm)
Table 2 (Unit: mm)
Maker
Model
Max. cutting
dimension
HITACHI
C 10FM
Right and left 45˚
Height x Width
(H x W)
68 x 98
(2-11/16" x 3-7/8")
By turning the table to the right or left as desired, the Model C 10FM is capable of miter cutting of up to 45˚to the
right and left.
Height (H)
Width (W)
Width (W)
Height (H)
Workpiece 45˚right and
left
(3) Equipped with debris guard to restrict dispersion of chips for enhanced safety in operation.
A debris guard has been adopted to prevent wood chips from adhering to the saw blade at the end of the
cutting operation.
(4) Lightweight design
12.4 kg in weight, for easy transport in a workshop

--- 3 ---
5. SPECIFICATIONS
66 mm (2-19/32") x 144 mm (5-11/16")
79 mm (3-1/8") x 108 mm (4-1/4")
90 mm (3-9/16") x 90 mm (3-9/16") [with aux. board width 19 mm (3/4")]
Miter cutting ranges
Maximum
cutting
dimentions
Height x
Width
(H x W)
0˚(Right angle)
Miter right/left 45˚67 mm (2-5/8") x 98 mm (3-7/8")
Right and left 0˚--- 45˚
Full-load current
Type of motor
Power source type and voltage
Applicable saw blade
Angle stopper positions
Max. output
No-load rotation speed
Cord
Packaging
Coating
Weight
Main body dimensions
(Width x Depth x Height)
Right and left 0˚, 15˚, 22.5˚, 31.6˚and 45˚
255 mm (10") external dia. x 15.9 mm (5/8") bore
1,600 W
AC single phase commutator series motor
AC single phase 60 Hz, 115 V
13 A (115 V)
Holder ass'y (Code No. 317542)
Vise ass'y (Code No. 317541)
255 mm (10") TCT saw blade (70 teeth, Code No. 976473)
••••••••••••••• for normal cutting
255 mm (10") TCT saw blade (60 teeth, Code No. 976472)
••••••••••••••• for fine surface cutting
Type: 2-Conductor cabtire cable Nominal cross-sectional area: 16AWG (1.25 mm2)
Length: 2.2 m (7.3 ft) External dia.: 7.5 mm with mold plug
Corrugated cardboard box
255 mm (10") TCT saw blade (24 teeth, Code No. 311128)
••••••••••••••• for wood and aluminum cutting
Dust bag
Vise ass'y
12.7 mm wrench
12.4 kg (27.3 Ibs.), gross weight 16.5 kg (36.4 Ibs.)
510 mm x 810 mm x 575 mm
(20-3/32" x 31-29/32" x 22-21/32")
4,500/min.
Standard accessories
Metallic silver green
Optional accessories

--- 4 ---
Motor
Miter cutting ranges
Angle stopper position
Saw blade outer diameter (mm)
Full-load current (A)
No-load revolution (/min.)
Max. output (W)
Insulation structure
Base size
Width x Depth (mm)
Debris guard
Dust bag size (mm)
Main unit dimensions
Width x Depth x Height (mm)
Product weight (kg)
Standard equipment *
Optional accessories
Right and left 0˚--- 45˚
Right and left 0˚, 15˚, 22.5˚,
31.6˚and 45˚
255 (10")
13 (115 V)
4,500
1,600
Double insulation
500 x 120
(19-21/32" x 4-23/32")
Equipped
260 x 180
(10-7/32" x 7")
510 x 810 x 575
(20-3/32" x 31-29/32" x 22-21/32")
12.4 (27.3 lbs.)
•255 mm (10") TCT saw blade
(24 teeth) for wood and
aluminum cutting
•Dust bag
•Vise ass'y
•12.7 mm (1/2") wrench
•Holder ass'y
•Vise ass'y
•255 mm (10") TCT saw blade
(70 teeth) for normal cutting
•255 mm (10") TCT saw blade
(60 teeth) for fine surface
cutting
6. COMPARISONS WITH SIMILAR PRODUCTS
Item Maker/Model
Max.
cutting
dimensions
Height
x Width
(H x W)
HITACHI
C 10FM
0˚(Right angle)
Miter right/left 45˚
Right and left 0˚--- 45˚
Right and left 0˚, 22.5˚and 45˚
254 (10")
13 (120 V)
5,200
-----
Double insulation
450 x 105
(17-23/32" x 4-1/8")
Non
240 x 180
(9-7/16" x 7")
450 x 815 x 500
(17-23/32" x 32-3/32" x 19-21/32")
12.7 (28 lbs.)
•255 mm (10") cross cut saw
blade (104 teeth)
•Dust bag
•Wrench
Right 0˚--- 52˚
Left 0˚--- 45˚
Right and left 0˚, 15˚, 22.5˚, 30˚
and 45˚
255 (10")
12 (115 V)
4,600
-----
Double insulation
460 x 100
(18-3/32" x 3-15/16")
Non
190 x 205
(7-15/32" x 8-1/16")
460 x 750 x 505
(18-3/32" x 29-17/32" x 19-27/32")
12.6 (27.8 lbs.)
•255 mm (10") cross cut saw
blade
•Dust bag
•13 mm socket wrench
•Triangular rule
•Safety goggles
•255 mm (10") TCT saw blade
(50 teeth) for wood
•255 mm (10") miter saw blade
(100 teeth) for wood
•255 mm (10") miter saw blade
(100 teeth) for aluminum
•255 mm (10") cross cut saw
blade (50 teeth) for wood
•255 mm (10") combination
saw blade (36 teeth) for wood
•Holder
•Vertical vise
ZC
63 mm x 131 mm
(2-1/2" x 5-5/32")
95 mm x 95 mm
(3-3/4" x 3-3/4")
70 mm x 119 mm
(2-3/4" x 4-11/16")
89 mm x 89 mm
(3-1/2" x 3-1/2")
70 mm x 84 mm
(2-3/4" x 3-5/16")
89 mm x 59 mm
(3-1/2" x 2-5/16")
66 mm x 144 mm
(2-19/32" x 5-11/16")
79 mm x 108 mm
(3-1/8" x 4-1/4")
90 mm x 90 mm
(3-9/16" x 3-9/16")
[With aux. board width
19 mm (3/4")]
•255 mm (10") TCT saw
blade (60 teeth)
•255 mm (10") TCT saw
blade (80 teeth)
•Work clamp
67 mm x 98 mm
(2-5/8" x 3-7/8") 63 mm x 91 mm
(2-1/2" x 3-19/32")
71 mm x 89 mm
(2-13/16" x 3-1/2")
*: Standard equipment may differ country to country.

--- 5 ---
7. PRECAUTIONS IN SALES PROMOTION
In the interest of promoting the safest and most efficient use of the Model C 10FM Miter Saw by all of our
customers, it is very important that at the time of sale the salesperson carefully ensures that the buyer seriously
recognizes the importance of the contents of the Instruction Manual, and fully understands the meaning of the
precautions listed on the various Caution Plates attached to each machine.
7-1. Instruction Manual
Although every effort is made in each step of design, manufacture and inspection to provide protection against
safety hazards, the dangers inherent in the use of any power saw cannot be completely eliminated. Accordingly,
general precautions and suggestions for the use of electric power tools, and specific precautions and suggestions
for the use of the compound saw are listed in the Instruction Manual to enhance the safe, efficient use of the tool
by the customer. Salespersons must be thoroughly familiar with the contents of the Instruction Manual to be able
to offer appropriate guidance to the customer during sales promotion.
(1) Precautions on the Name Plate
Each Model C 10FM is furnished with a Name Plate that lists the following precautions.
Instruct the customer to thoroughly read the Instruction Manual prior to attempting to operate the machine.
The Warning Label (A) specified by the UL is affixed
on the upper righthand portion of the motor housing.
Please instruct users to strictly observe the contents
in 1 to 9 in the Warning Label (A) shown at left.
(2) Warning Label (A)

--- 6 ---
8. ADJUSTMENT AND OPERATIONAL PRECAUTIONS
8-1. Confirmation of Saw Blade Lower Limit Positioning
The lower limit of the saw blade cutting depth is factory-adjusted
so that when the saw blade is fully lowered, its cutting edge is
28 mm to 30 mm (1-3/32" to 1-5/32") below the upper surface of
the table insert. Lower the saw blade and confirm that it stops at
the correct position.
If it is necessary to adjust the saw blade lower limit, loosen the
6 mm hex. nut on the M6 x 20 mm hex. hd. bolt, and turn the
M6 x 20 mm hex. hd. bolt if necessary. (See Fig. 3.)
M6 x 20 mm
hex. hd. bolt
6 mm hex. nut
Knob
Vise
assembly
Fig. 3
Fig. 5
Fig. 4
[CAUTION] Perform the adjustment carefully to ensure that the saw blade does not cut into the table. Also,
on completion of adjustment, ensure without fail that the 6 mm hex. nut is securely tightened.
Vise
assembly
Support
Knob
Base 5 mm
clamp bolt
Fence
5 mm
clamp bolt
Support
[Warning] Always firmly clamp or vise to secure the workpiece to the fence; otherwise the workpiece
might be thrust from the table and cause bodily harm.
8-2. How to Use the Vise Ass'y
(1) The vise ass'y can be mounted on either the left side
base or the right side base, and can be raised or
lowered according to the height of the workpiece.
Insert the support of the vise ass'y into the hole
located on either the left side base or the right side
base.
Then tighten the 5 mm clamp bolt, as shown in Fig. 4.
Turn the knob to thoroughly clamp the workpiece.
[NOTE] The support has two locking grooves into which
the tip of the 5 mm clamp bolt is designed to fit,
to lock the vise ass'y in the desired position.
(2) The vise ass'y can be mounted on either the left side
fence or the right side fence, and can be raised or
lowered according to the height of the workpiece.
Insert the support of the vise ass'y into the hole
located on either the left side fence or the right
side fence.
Then tighten the 5 mm clamp bolt, as shown in
Fig. 5.
Turn the knob to thoroughly clamp the workpiece.
1
2
3
3
2
1

--- 7 ---
8-3. Cutting Operation
(1) Cutting efficiency will be reduced if a dull saw blade is used, if an excessively long extension cord is used, or if
the wire gauge of the extension cord is too small. (For details on extension cords, please refer to the
Instruction Manual.) This is particularly important when cutting materials with dimensions which are at or near
the maximum capacity for the machine.
(2) The customer should be advised to thoroughly inspect the workpiece to ensure that there are no metallic
objects (nails in particular), sand, or other foreign matter in or on the workpiece. Saw blade contact with such
foreign matter will not only shorten the service life of the saw blade, but could cause serious accident. Should
the saw blade tips be broken off, the tips may fly toward the operator.
(3) Press cutting
Like Mode C 10FC2, C 10FM can be used for press cutting of workpieces up to 66 mm x 144 mm (2-19/32" x
5-11/16") in a single operation by simply pushing the saw blade section (head) downward. The customer
should be cautioned that excessive pressure on the handle will not increase the cutting speed. On the
contrary, excessive pressure may result in reduced cutting efficiency (irregular or rough cutting of the
workpiece), and could also cause overload and subsequent burnout of the motor.
On completion of the cutting operation, turn the switch OFF and wait for the saw blade to come to a complete
stop before raising the saw blade section (head) to its original position. Raising the saw blade section (head)
while the saw blade is rotating may cause unwanted cutting marks on the workpiece.
Techniques to avoid unwanted cutting marks
Uneven and unwanted cutting marks can be avoided throughout the cutting operation by gently and smoothly
pressing down on the handle, so that the entire cutting operation is accomplished in a single uninterrupted
motion.
(4) Miter cutting
Miter cutting is accomplished by turning the table. (For details, please refer to the Instruction Manual.)

--- 8 ---
(5) Cut surface quality during miter cutting
The quality of the cut surface depends on the
type of cutting operation (miter), the type and
sharpness of the saw blade, whether the
workpiece is cut to the right or left. In miter
cutting in particular, cutting is performed across
the wood grain, so the condition of the cut
surface depends on whether the wood is cut
with or against the grain. This is the same as
when using electric portable planers.
Customers should be advised of these
phenomena so that they understand that in
cases when the cut surface may not be as
smooth as expected or hoped for, it is not
caused by the performance of the saw blade or
the Model C 10FM.
In the cutting examples illustrated in Fig. 6, the
cut surfaces on the sides marked are better
than those on the sides marked .
Better Better
[Miter cutting]
Fig. 6
A
B
9. PACKING
The main body of the Model C 10 FM is sandwiched between packing (A) and packing (B) made of styrofoam.
This system makes the packaging work easier.
(1) Preparation
Remove the vise ass'y and dust bag from the main unit.
Then swivel the table through 45˚toward the right.
Fix the table securely with the miter handle.
Push down the head section and insert the locking pin to secure the head section at the lower position.
(2) How to install packing (A)
Put packing (A) in the carton box.
Put the main unit in packing (A).
(3) How to install packing (B)
Put packing (B) on the main unit. Put the vise ass'y and the dust bag in the groove of packing (B).
Close the lids of the carton box and bind them together.