Hitachi CJ 14DSL Manual

PRODUCT NAME
Hitachi 14.4 V Cordless Jig Saw
Model CJ 14DSL
• Cutting or cutting out shapes in various types of wood workpieces
• Cutting various types of metals such as mild steel, aluminum and copper
• Cutting various types of synthetic resin materials such as bakelite and vinyl chloride
• Cutting various decorative sheets and thin and soft construction materials
• Cutting stainless steel sheets
[ NEW FEATURES ]
Highest cutting capacity in the class
Lightest in the class
Remaining battery indicator (switch panel)
Equipped with lightweight and high-capacity
slide-type lithium-ion battery
Tool-less blade changing system
LED lighting system
Powerful dust blowing
4-stage orbital action
Soft grip handle
LIST No. H807
Mar. 2008
The new Model CJ 14DSL is a cordless jig saw equipped with a slide-type lithium-ion battery. The key features o
f
the Model CJ 14DSL are as follows.
(1) Highest cutting capacity in the class thanks to the high-performance motor (The cutting capacity per charge is
1.3 times higher than C.)
(2) Lightest in the class (2.3 kg)
(3) Remaining battery indicator
(4) Equipped with lightweight and high-capacity (3.0 Ah) slide-type lithium-ion battery
We aim to expand our market share with the new Model CJ 14DSL.
MARKETING OBJECTIVE
APPLICATIONS
SELLING POINTS
International Sales Division
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
C

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:
Competitors
Symbols Utilized
Company Name Model Name
B BOSCH GST14.4V
C MAKITA BJV140

CONTENTS
Page
SELLING POINT DESCRIPTIONS-----------------------------------------------------------------------------------------1
SPECIFICATIONS --------------------------------------------------------------------------------------------------------------3
1. Specifications -----------------------------------------------------------------------------------------------------3
2. Optional accessories --------------------------------------------------------------------------------------------4
COMPARISONS WITH SIMILAR PRODUCTS--------------------------------------------------------------------------5
1. Specifications comparisons ------------------------------------------------------------------------------------5
2. Cutting number comparisons per charge ------------------------------------------------------------------6
ORBITAL MECHANISM AND BLADE ------------------------------------------------------------------------------------7
1. Blade movement -------------------------------------------------------------------------------------------------7
2. Orbital position selection ---------------------------------------------------------------------------------------7
3. Blades --------------------------------------------------------------------------------------------------------------8
PRECAUTIONS IN SALES PROMOTION -------------------------------------------------------------------------------9
1. Safety instructions -----------------------------------------------------------------------------------------------9
2. Particular attention during sales promotion ------------------------------------------------------------- 11
REPAIR GUIDE ---------------------------------------------------------------------------------------------------------------12
1. Precautions in disassembly and reassembly -----------------------------------------------------------12
2. Precautions in disassembly and reassembly of battery charger -----------------------------------19
STANDARD REPAIR TIME (UNIT) SCHEDULES -------------------------------------------------------------------20
Assembly diagram for CJ 14DSL

-1-
Highest cutting capacity in the class* *: Based on our own research
The number of wood cutting operations per battery charge by the Model CJ 14DSL is 1.3 times higher than
C thanks to the efficient transmission of the cutting energy. For details, refer to "Cutting number
comparisons per charge" on page 8.
Lightest in the class* *: Based on our own research
The Model CJ 14DSL is lightest in weight in the class.
Remaining battery indicator (switch panel)
The Model CJ 14DSL is equipped with the remaining battery indicator (switch panel). The battery remaining
power can be easily checked by pressing the remaining battery level indicator switch while the Model
CJ 14DSL is stopping. Thus the battery can be charged in proper timing.
SELLING POINT DESCRIPTIONS
Maker HITACHI
Model CJ 14DSL CJ 14DL
BC
Weight 2.3 kg (5.1 lbs) 2.3 kg (5.1 lbs) 2.9 kg (6.4 lbs) 2.7 kg (6.0 lbs)
Indicator lamp Remaining battery level
The battery remaining power is
enough.
The battery remaining power is
a half.
The battery remaining power is
nearly empty. Charge the
battery immediately.
Remaining battery level
indicator lamp
Remaining battery level
indicator switch

-2-
Equipped with lightweight and high-capacity (3.0 Ah) slide-type
lithium-ion battery
The type BSL 1430 lithium-ion battery is equipped with the overdischarge protection circuit, overload
protection circuit, and voltage monitoring circuit for each cell to prevent shortening of the battery life due to
overdischarge (overuse) or overcharge (excessive charging) of the battery.
The number of charging/discharging is about 1,500.
Precautions for use of the Type BSL 1430 lithium-ion battery
The type BSL 1430 lithium-ion battery is equipped with a protective function that automatically stops output
to extend the battery life. The motor may stop automatically in either of the following case (a) or (b) even if
the switch is depressed continuously during operation. This is because the protective function is activated.
The battery is not faulty.
(a) The motor automatically stops when the remaining battery level is low (when the battery voltage is
decreased to about 8 V. Charge the battery immediately in such case.
(b) The motor may stop if the Model CJ 14DSL is overloaded. In such case, release the switch and
eliminate the cause of the overload problem. Then the Model CJ 14DSL will be operable.
Please instruct the customers on the above precautions.
Tool-less blade changing system
The blade can be easily changed by opening/closing the lever. Usable blade is only the BOSCH's blade
whose thickness at the attaching portion is 1.5 mm or less or an equivalent blade having the same shape.
1) Open the lever fully. (Fig. )
2) Detach the blade from the blade holder.
3) Attach the new blade in the blade holder by pushing as far
as it will go. (Fig. )
4) Close the lever. (Fig. )
LED lighting system
The Model CJ 14DSL is equipped with an LED light for illuminating the blade. To turn on the light, pull the
trigger. Release the trigger to turn off.
Powerful dust blowing
The Model CJ 14DSL is equipped with a dust blower mechanism that blows off dust by the air from the
motor cooling fan.
4-stage orbital action
The Model CJ 14DSL is equipped with the orbital mechanism that allows the blade to move up and down
and forward and backward. This mechanism makes the blade dig well into wood and other soft materials
and also discharges cutting chips well to achieve speedy cutting. For details, refer to “Blade movement” on
page 7.
Soft grip handle
The handle of the Model CJ 14DSL is widely covered with soft-touch elastomer (rubber-like soft resin). It is
slip-resistant and securely fits in the palm of a hand even if the gripping hand sweats.
Lever
Blade holder
Blade

-3-
1. Specifications
Model CJ 14DSL
Capacity Max. cutting thickness Wood 135 mm (5-5/16")
Mild steel 10 mm (3/8")
No-load rotation speed 0 to 2,400 min-1
Length of stroke 26 mm (1")
Min. cutting radius 25 mm (1")
Type of motor DC magnet motor with fan
Type of switch Trigger switch with rotation selector and brake (with ON-OFF lock)
Max. cutting angle 45° (right and left)
LED light White LED
Enclosure
Housing ------- Glassfiber reinforced polycarbonate resin and elastomer
Gear holder -- Aluminum alloy die casting alloy
Battery --------- Glassfiber reinforced polycarbonate resin
Charger ------- ABS resin
Main body 2.3 kg (5.1 lbs) (including the battery)
Weight Battery 0.5 kg (1.1 lbs)
Overall length, overall height
and overall length
268 mm x 213 mm x 76 mm
(10-35/64” x 8-3/8” x 2-63/64”)
Battery
(Type BSL 1430)
Sealed cylindrical lithium-ion storage battery
Nominal voltage ------DC 14.4 V
Nominal life -----------Charging/discharging: Approx. 1,500 times
Nominal capacity ----3.0 Ah
Charger
(Model UC 18YRSL)
Overcharge protection system:
(1) Battery voltage detection (- V system)
Battery temperature detection (dT/dt system)
(2) Battery surface temperature detection (thermostat or thermistor)
(3) 120-minute timer
(4) Stop current detection
Power input: 90 W
Charging time: Approx. 45 minutes [for Type BSL 1430 battery at 20°C
(68°F)]
Operable ambient temperature range: 0°C to 40°C (32°F to 104°F)
The maximum allowable temperature of the Type BSL 1430 battery is
50°C (122°F).
Indicated method of battery charging function
2LSCK
Charger (UC 18YRSL) --------------------------------------------- 1
Battery (BSL 1430) -------------------------------------------------- 2
Battery cover ---------------------------------------------------------- 1
Blade (No. 41) -------------------------------------------------------- 1
Splinter guard --------------------------------------------------------- 1
Chip cover ------------------------------------------------------------- 1
Plastic case ----------------------------------------------------------- 1
Standard
accessories
NN Without charger, battery, battery cover or plastic case
SPECIFICATIONS

-4-
2. Optional accessories
(1) Blades
NOTE: The standard blade No. 41 and the optional blade No. 21 have the same shape.
(2) Guide
Code No.
321593
(3) Sub base (A) (steel)
Code No.
321992
(4) Sub base (B) (resin)
Code No.
321993
(5) Dust collector
Code No.
321591
Blade shape Application Blade No. Pitch Code No. Per pkg.

-5-
(Superior specifications: )
1. Specification comparisons
Maker HITACHI
Model name CJ 14DSL CJ 14DL B C
Wood 135 mm (5-5/16”) 135 mm (5-5/16”) 65 mm (2-9/16”) 135 mm (5-5/16”)
Cutting
capacity Mild steel 10 mm (3/8”) 10 mm (3/8”) 10 mm (3/8”) 10 mm (3/8”)
No-load speed 0 to 2,400 min-1 0 to 2,400 min-1 0 to 2,100 min-1 0 to 2,600 min-1
Min. cutting radius 25 mm (1”) 25 mm (1”) Not indicated Not indicated
Length of stroke 26 mm (1”) 26 mm (1”) 26 mm (1”) 26 mm (1”)
Max. cutting angle 45° (right and left) 45° (right and left) 45° (right and left) 45° (right and left)
LED light White LED White LED None White LED
Tool-less blade attachment Provided Provided Provided Provided
Soft grip handle Provided Provided Provided Provided
Changeover of impact energy Provided Provided Not provided Not indicated
Remaing battery indicator Provided Not provided Not provided Not provided
Length (A) 268 mm
(10-35/64")
274 mm
(10-25/32")
275 mm
(10-13/16")
255 mm
(10")
Height (B) 213 mm
(8-3/8")
213 mm
(8-3/8")
215 mm
(8-15/32")
208 mm
(8-3/16")
Dimensions
Width (C) 76 mm (2-63/64") 76 mm (2-63/64") 84 mm (3-5/16") 73 mm (2-7/8")
Weight 2.3 kg (5.1 lbs) 2.3 kg (5.1 lbs) 2.9 kg (6.4 lbs.) 2.7 kg (5.9 lbs.)
Type Li-ion Li-ion Ni-MH Li-ion
Attachment Slide type Plug-in type Plug-in type Slide type
Nominal
capacity 3.0 Ah 3.0 Ah 2.6 Ah 3.0 Ah
Nominal
voltage 14.4 V 14.4 V 14.4 V 14.4 V
Protection
circuit Provided Provided Not provided Not indicated
Battery
Charging
time *1 45 min. 45 min. 60 min. 22 min.
*1: Charging time may vary depending on the type of charger to be used.
COMPARISONS WITH SIMILAR PRODUCTS
B
A
C

-6-
2. Cutting number comparisons per charge
The number of cutting operations per battery charge may vary widely depending on hardness of wood or
mild steel, sharpness of the blade and other factors. Use the test results shown below for reference
purposes only.
Material Maker Model Number of cutting operations per charge
0
CJ 14DSL
HITACHI CJ 14DL
C
Wood
(24 mm thick
x 330 mm)
B
CJ 14DSL
HITACHI CJ 14DL
C
Mild steel
(2 mm thick
x 100 mm)
B
20 40 60 80 100 120
102
77
40
102
24
32
32
14

-7-
1. Blade movement
In the Model CJ 14DSL, the orbital mechanism moves the blade up-and-down and forward-and-backward.
The amount of fore-and-aft blade movement can be adjusted just by turning the change knob to any of the
four settings. The following table shows the modeled orbits of blade movement at each orbital position
(change knob position).
2. Orbital position selection
Selection of the most appropriate orbital position for each cutting job is essential to achieve the best
efficiency for cutting. However, as the best orbital position depends on such factors as hardness and
thickness of the workpiece, desired finish of the cut surface and so on, it is not practical to set a single,
simple standard for best orbital position selection. Table 1 can be used as a general guide for appropriate
orbital position selection based on various factors.
Table 1 General guide for appropriate orbital position selection
Orbital position
Factor III II I 0
Material hardness Soft material Hard material
Material thickness Thick Thin
Cutting speed Faster cutting Slower cutting
Straight cutting or
curved cutting Straight cutting Curved cutting
Surface finishing Rough finish acceptable
(splintering, chipping acceptable) Fine finishing
Material stability Unstable Very stable
ORBITAL MECHANISM AND BLADE