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T ECHNICAL INFORMATION Product
Models No. JR140D
JR140D, JR180D
7-7/16") >
(3-5/16")
Description Cordless Recipro Saw 443mm(1
<
84mm
203mm (8")
>
CONCEPTION AND MAIN APPLICATIONS
>
Model JR140D (14.4V) and JR180D (18V) are the cordless
<
>
>
recipro saws with tool less features. Namely, without using any tools, < < 94mm
42 (3-11/16") <
the saw blade can be replaced and shoe can be adjusted. m
(1- m
5/8
The variations are as follows. ")
Battery
Model No. Cartridge Charger Plastic Case JR180D
JR140DWA 1422....1pc. DC1411 with Plastic Case 7-5/8") >
(3-5/16")
447mm(1
206 mm (8-7/8")
<
84mm
JR140DWB 1433....1 pc. DC1411 with Plastic Case >
JR140DWAE 1422....2 pcs. DC1411 with Plastic Case
>
JR140DWBE 1433....2 pcs. DC1411 with Plastic Case
<
JR180DWA 1822....1pc. DC1801 with Plastic Case
>
>
< < 95mm
42 (3-3/4")
JR180DWB 1833....1 pc. DC1801 with Plastic Case
<
m
(1- m
5/8
JR180DWAE 1822....2 pcs. DC1801 with Plastic Case ")
JR180DWBE 1833....2 pcs. DC1801 with Plastic Case
Specifications
Model No. JR140D JR180D
Power source NiCd. batttery 1422 (14.4V, 2.0Ah) 1822 (18V, 2.0Ah)
NiMH. batttery 1433 (14.4V, 2.2Ah) 1833 (18V, 2.2Ah)
Max.Cutting Capacity Pipe 90 mm (3-1/2")
Wood 90 mm (3-1/2")
Length of Stroke 23 mm (7/8")
Strokes per Minute (spm.) 0 - 2,700
Net Weight 3.3 kg (7.3 lbs) 3.5 kg (7.7 lbs)
Standard equipment
Recipro Saw Blade No.21 (for Steel)
Recipro Saw Blade No.22 (for Steel)
Recipro Saw Blade No.23 (for Wood)
Battery Covrer
The standard equipment for the tools shown may differ form country to country
Optional accessories
Recipro Saw Blade No. 21, No. 22, No. 24 (for steel),
Recipro Saw Blade No.23, 23B (for wood)
Battery 1422 Battery 1433
Battery 1822 Battery 1833
Battery Charger DC1801
Battery Charger DC1439
Battery Charger DC1411
Battery Charger DC1422
Features and benefits
1.High working speed. Especially Mod.JR180D can compete with Mod.JR3000V in
the cutting speed.
2.Changeable carbon brushes without dismounting the body.
3.Big D-form handle for comfortable gripping even with g loved hand.
4.Trigger type variable speed control switch
5.Lock of button for prevention of accidental switch on, can be operated easily from both
left and right side.
Toolless system Dust-proof construction
Replacement of saw blade and
Dust seal mounted on the front part of slider
adjustment of shoe can be made
protect the machine from the intruding dust.
without any tools.
In case of Competitor A, (2) (5)
tools are required for
replacement of blade.
(3)
In case of Competitor B,
no tools are required (4)
for replacement of
blade, however for
adjustment of shoe,
tools are required.
Comparison chart 1
Spec. Makita Competitor 1. Competitor 2.
Model No. JR180D JR140D Mod. A Mod. B Mod. C
Battery Voltage (V) 18 14.4 18 14.4 18
Capacity (Ah) *2.0 / 2.2 *2.0 / 2.2 2.0 1.7 2.0
Stroke per min. (Spm.) 0 - 2,700 0 - 2,700 0 - 2,800 0 - 2,700 0 - 2,000
Length of stroke (mm) 23(7/8") 23(7/8") 22(7/8") 22(7/8") 25 (1")
Blade replacement Yes Yes Hex wrench is needed. Yes
Toolless system
Shoe adjustment Yes Yes *** Impossible to adjust Hex wrench is needed.
Trigger type variable
speed control switch Yes Yes Yes Yes Yes
weight on catalogue 3.5 (7.7 lbs) 2.9 (6.5 lbs) 2.7(6.0 lbs) 3.7(8.25 lbs)
Weight (Kg)
actual weight 3.5 (7.7 lbs) 3.3 (7.2 lbs) 3.1 (6.8 lbs) 2.8(6.1 lbs) 3.9(8.6 lbs)
**Battery Battery Battery
Standard Equipments **Charger Charger Charger
Set of Blade (One hour charger) (40 min.charger)
Plastic Case Set of Blade Set of Blade
Hex rench Hex rench
Plastic Case Steel Case
* The number of Ah is dieffrent from model to model which are mentioned
on the first page.
** The type of charger and battery cartridge are different from model to model
which are mentioned on the first page.
*** Impossible to adjust, bcause the shoe is fixed in the machine.
Comparison chart 2
The data of Competitor Mod.A and B are indexed for 100.
Working speed Working capacity
with one full charged battery
18V
100
100
Slow Fast
Wood (Spruce of 2 x 10)
JR180D 125 (9.6 Sec.) 85 (21 cuts)
Competitor 1 Mod.A 100 100
Competitor 2 Mod.C 125 85
JR3000V 140
(A/C tool)
Carbon Steel Pipe for plumbing
JR180D 125 (21.8 Sec.) 110 (10.5 cuts)
Competitor 1 Mod.A 100 100
Competitor 2 Mod.C 75 95
JR3000V 110
(A/C tool)
14.4V
100 100
Slow Fast
Wood (Spruce of 2 x 10)
JR140D 95 (11.0 Sec.) 75 (14 cuts)
Competitor 1 Mod.B 100 100
JR3000V 120
(A/C tool)
Carbon Steel Pipe for plumbing
JR140D 115 (25.2 Sec.) 90 (7.5 cuts)
Competitor 1 Mod.B 100 100
JR3000V 105
(A/C tool)
Repair
Dismounting of Blade Clamp
Hex Socket Head Bold M5 x8
Compression Spring 16
Blade Clamp Slider
Pin 5.5-6
Steel Ball 4.8
Push Button Compression Spring 3
Push Pin
Press the push button, however, not too strong, and then hex socket head bolt can be dismounted.
However, be so carefull that the hex socket head bolt does not spring out.
Mounting of Blade Clamp Steel Ball 4.8
Paint Makita Grease No.1 on the Steel Ball Grease
Grease Pin 5.5-6 Push Button
and Pin, and then install them into Blade Clamp.
Mount the Push Button on the above Blade Clamp.
>
Blade Clamp
At the mounting of clamp and push button on the slider, keep the distance 2 - 3mm between clamp and push button.
so, they can be installed on the slider soothly.
Push Button
Push Pin
Compression Spring 3
Ring 13
> < 2mm - 3mm
Clamp Compression Spring 16
Slider
Dismounting of Slider
Dismount the Pan Hd.Screw from the back side of the Lever 60 for shoe adjustment.
And then, dismount the Lever 60.
Dismount the Hex Bolt fastening the Shoe, and then Shoe can be pul1 out .
(Pay attention not to lose the Hex Nut installed in the lever in this process.)
Hex Bold
Shoe
Pan Hd.Screw M4 x 10
Lever 60 for Shoe Adjustment
Loosen 4 pcs.of Pan H.Screw M5x18. and dismount the Gear Housing Cover after taken off the Insulation Cover.
At dismounting of the Insulation Cover , pay attention to on the Insulation Cover illustrated below.
Insulation Cover
for prevention that the Insulation Cover
slips off from the machine.
Take off the Pan Hd.Screw fastening the Plane Bearings, and dismount the Plane Bearing on the Motor Housing side
from the Slider. After pushing the Slider in the direction of the Motor Housing, pull out the Slider in the
direction of as per the
following illustration. Pan Hd. Screw M5x16
<
<
Plate
Dust Seal 14
Plane Bearing 19 (on the motor housing side)
Pull out the Slider
Plane Bearing 19
in this direcyion.
Slider
Gear Housing Cover
Saw Blade Side side Motor Housing Side
Mounting of Slider
Set the Plate which has been dunked in the machien oil in advance, into the Gear Housing Cover.
Install the Slider on which the Plane Bearings are instlled in advance, on the Gear Housing Cover, and
Fasten it with Pan Hd.Screws together with Plate.
Adhesive is painted on the Pan Hd.Srew M5x16 in advance for prevention against loosening. Use the new
one with adhesive. If you do not replace with the new Pan Hd.Screw M5x16,paint the adhesive on it. .
Paint the grease No.1 by approx. 7 g on the slider.
Pan Hd. Screw M5x16
Plate
Motor Housing Side
<
<
Plane Bearing 19 Plane Bearing 19
to be greased in advance
Ring 13
Plate
(Felt)
Gear Housing Cover
<
<
to be greased Motor Housing Side
in advance
Dismounting of Bevel Gear 48
Take off Plate (C) by loosening Hex Socket Hd.Bolt M5 x 12. And then dismount the Gear Complete from Gear Housing
by loosening 3 pcs.of Pan Hd.Screw M5 x 8 which are installed on the bottom side of Gear Housing.
Hex Socket hd.Bolt M5x12 Pan Hd.Screw M5x8
Hex Socket hd.Bolt M6x15
Bottom view of
Gear Housing
Gear Complete Plate C Pan Hd.Screw M5x8 Pan Hd.Screw M5x8
Hold the flat secstion on the Gear Shaft end, and loosen Hex Socket Hd.Bolt M6 x 15.
And then, Bevel Gear 48 can be separated from Gear Shaft.
Hex Socket Head Bolt M6 x 15 is faced with adhesive. The repairing tool (Hex Wrench) has to be set in
the hex socket precisely to prevent the damage on the bolt head.
Dismounting of Armature
Dismount Carbon Brushes.
Separate the Motor Housing from the Gear Housing by loosening the Tapping Screw 5x35 (4pcs.) and 5x45 (2 pcs.).
Take off Pan Hd.Screw M4x12 (2pcs.). So, Armature can be dismaounted from the machine.
Not lose Compression Spring 4 installed between Switch and Switch Lever, at dismounting of
Handle section.
Brush Holder Cap
Tapping Screw 5x35 (4pcs.)
Pan Hd.Screw
M4x12 (4 pcs.)
Compressoin Spring 4 Gear Housing
Dismounting of Ball Bearing installed on the fan side of armature
Take off the Stop Ring E10, mounted on Ball Bearing 6001DDW (however, not mounted on the Fan side.)
in advance.
Hook Bearing Retainer B with the Repairing Tool (No.1R021:Bearing Extracter),
and then dismount Ball Bearing 6001DDW together with Bearing Retainer B.
Stop Ring E10 taken off from
the Ball Bearing 6001DDW in advance.
Bearing Extracter 1R021
Bearing Retainer B
Ball Bearing 6001DDW
Stop Ring E10 (Fan side)
Fan Guide
Fan
Mounting of Spiral Bevel Gear 48 and Armature
Spiral Bevel Gear 48 and Armature can be mounted by taking reverse steps.
Hex Socket Hd.Bolt M6x15 on Spiral Bevel Gear 48 is faced with adhesive for prevention of loosening.
It has to be replaced with new one faced with adhesive. Not fasten Spiral Bevel Gear 48 with the used
Hex Socket Hd.Bolt M6x15.
The Pan Hd.Screws for fastening Gear Section and Armature, have to be replaced with new one faced
with adhesive. In case that the used ones are installed, adhesive has to be painted on the used screws
for prevention of loosening.
Mounting of Gear Housing Cover
Fasten Gear Housing Cover with Pan Hd.Screw M5 x 18 pressing it in the direction of motor housing
for sealing.
Pan Hd.Screw M5x18
Motor Housing
Mounting of Insulation Cover
Insulation Cover can be mounted smoothly by moistening inside of it.
Circuit Diagram
Black
Brush Holder
M1
Switch Armature
Spring Terminal
M2
Red Brush Holder
Lead Wires integrated with Brush Holder
Rib Lead Wires integrated with Brush Holder has to be
Lead Holder B
set asper the left illustration.
Lead Holder A * Fix the lead wire with lead holder A.
* and then, fix with lead holder B through
rib.
Brush Holder
Circuit Diagram
Lead Wires have to be set through Lead Holder and Boss firmly as per the following illustration.
Lead Wires have to be set
by Lead Holder firmly.
Boss for setting
Lead Wires.