Hitachi C 14DMR Technical Data And Service Manual
TECHNICAL DATA
AND
SERVICE MANUAL
CORDLESS CIRCULAR SAW
C 14DMR
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
LIST No. G833 August 2005
C
MODEL
C 14DMR
Hitachi
Power Tools
REMARK:
Throughout this TECHNICAL DATA AND SERVICE MANUAL, a symbol(s)
is(are) used in the place of company name(s) and model name(s) of our
competitor(s). The symbol(s) utilized here is(are) as follows:
Symbols Utilized
Competitors
Company Name
Model Name
MAKITA
5630DWD
C
Page
CONTENTS
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 PRODUCT ................................................................................ 4
7. WORKING PERFORMANCE PER SINGLE CHARGE .................................................................. 4
8. PRECAUTIONS IN SALES PROMOTION ..................................................................................... 5
8-1. Handling Instructions ...................................................................................................................... 5
8-2. Caution Plates ................................................................................................................................ 6
8-3. Inherent Drawbacks of Cordless Circular Saws Requiring Particular Attention
During Sales Promotion .................................................................................................................. 7
9. REPAIR GUIDE .............................................................................................................................. 8
9-1. Precautions in Disassembly and Reassembly ................................................................................ 8
9-2. Precautions in Disassembly and Reassembly of Battery Charger ............................................... 14
10. STANDARD REPAIR TIME (UNIT) SCHEDULES ..................................................................... 15
Assembly Diagram for C 14DMR
--- 1 ---
1. PRODUCT NAME
Hitachi Cordless Circular Saw, Model C 14DMR
2. MARKETING OBJECTIVE
Circular saws are highly sought in the United States and some other countries where a majority of houses are of
2 x 4 construction. While we have so far met this demand with our AC-powered saws, the need for cordless tools
is growing for working on sites with no or few power supply facilities. We have thus developed this model which is
equipped with a 165 mm (6-1/2") saw blade capable of cutting a 2 x 4 piece of wood with a single pass of the
blade even at an angle of 45û. This feature is expected to make this product series stand out from the existing
competitive models.
3. APPLICATIONS
Cutting various wood materials
4. SELLING POINTS
90û fine adjustment
screw underneath
the base
24T TCT saw blade cuts
57 mm (2-1/4") max. at 90 deg.
40 mm (1-9/16") max. at 45 deg.
(Suitable for cutting 2 x 4 materials)
Safety switch lever
Electric brake for rapid
stopping of saw blade
Soft and comfortable grip
Magnesium saw cover
--- 2 ---
4-1. Selling Point Descriptions
(1) 24T TCT saw blade cuts 57 mm (2-1/4") max. at 90 deg.
The Model C 14DMR is equipped with a 165 mm (6-1/2") tungsten-carbide tipped saw blade as a standard
attachment. Its maximum cutting depth is 57 mm (2-1/4"), while maker C's maximum cutting depth is 54 mm
(2-1/8").
(2) 24T TCT saw blade cuts 40 mm (1-9/16") max. at 45 deg. (Suitable for cutting 2 x 4 materials)
The Model C 14DMR's maximum cutting depth is 40 mm (1-9/16") at 45 degrees inclined cutting. Therefore, a
2 x 4 workpiece can be easily cut at 45 degrees inclined cutting.
(3) 90û fine adjustment screw underneath the base
The Model C 14DMR is equipped with a base that can be inclined up to 50û, and a 90û fine adjustment screw
that makes the angle between the base and a saw blade square for accurate 90û cutting.
Square
Base
Wing bolt
90û fine
adjustment
screw
--- 3 ---
Overcharge prevention circuit:
A thermostat monitors the surface temperature of the battery and, on detecting the
temperature rise which occurs on completion of charging, automatically turns off the
unit to prevent the battery from overcharge.
Input capacity: 70 W
Indication method: Pilot lamp indicator of battery charging
Function: On
••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••
During charging
Off
••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••
Charging completed
5. SPECIFICATIONS
Type of motor
Cutting depth
at 90û
Type of switch
at 45û
Rotation speed
Model
Saw blade diameter
Type of handle
Enclosure
Charger
Battery
No-load
Housing, handle cover
Saw cover
0 --- 40 mm (0 --- 1-9/16")
0 --- 57 mm (0 --- 2-1/4")
D type
Trigger switch (automatic return type with switch-lock)
DC magnet motor
165 mm (6-1/2")
C 14DMR
Magnesium
Glassfiber reinforced polyamide resin
3,100/min.
Glassfiber reinforced polycarbonate resin
ABS resin
Battery
(Model EB 1414S)
Nominal service life
Nominal capacity
Type of battery
Nominal voltage
Weight
Main body (including battery) ............................ 3.3 kg (7.3 lbs.)
Charger unit (including cord) ............................. 0.3 kg (0.7 lbs.)
Standard accessories
Charger (UC 18YG) ................................................................. 1
Saw blade ................................................................................ 1
Box wrench .............................................................................. 1
Guide .......................................................................................1
Plastic tool case (Except for combo kit) ................................... 1
Charging/discharging: approximately 1,000 cycles
1.4 Ah
Sealed cylindrical nickel cadmium battery
DC 14.4 V
Current (A)
20 A
Lower guard
Polycarbonate
Charger
(Model UC 18YG)
1) Saw blade
For the U.S.A. and Canada
2) Battery
For the U.S.A. and Canada
Model
EB 1414S (1.4 Ah)
Code No.
324367
External diameter
165 mm (6-1/2")
165 mm (6-1/2")
Hole diameter
15.9 mm (5/8")
15.9 mm (5/8")
No. of teeth
24 pieces
40 pieces
Code No.
324293
317451
Net
--- 4 ---
60
30
10 (33 ft)
C 14DMR
140
80
28 (92 ft)
HITACHI
Capacity
C
m
6. COMPARISONS WITH SIMILAR PRODUCT
Brake
No-load speed (/min.)
Model
Max. cut depth
90û
Saw blade
Battery
Carbon brushes replacements
45û
Base material
Maker
Adjustable guide piece
HITACHI
* : Charging time may vary depending on charger to be used and ambient temperatures.
Diameter
No. of chips
Nominal capacity
Nominal voltage
Charging time*
C
165 mm (6-1/2")
54 mm (2-1/8")
38 mm (1-1/2")
24 pieces
2,600 mAh
2,600
Able
14.4 V
Equipped
None
Aluminum press
65 minutes
165 mm (6-1/2")
57 mm (2-1/4")
40 mm (1-9/16")
24 pieces
1,400 mAh
3,100
Unable
14.4 V
Equipped
None
Steel plate
30 minutes
C 14DMR
Dimension
Length
No-load-noise level [dB (A)]
Tool weight
Height
Width
364 mm
227 mm
197 mm
3.2 kg (7.1 lbs.) 3.4 kg (7.5 lbs.)
77.5 dB
340 mm
251 mm
193 mm
3.3 kg (7.3 lbs.) 3.3 kg (7.3 lbs.)
75 dB
Model
Model name
Wood
2 x 4 Cuts
2 x 8 Cuts
Concreteform plywood
(t =12.7 mm, 1/2")
7. WORKING PERFORMANCE PER SINGLE CHARGE
As actually measured values listed in the above table may vary depending on sharpness of the saw blade,
workpiece hardness (particularly in wood materials), moisture content of wood, charging condition, operator skill,
etc., please use this only as a reference only.
Actual weight
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