Makita LW1400 Manual

Model LW1401is a powerful (2200W) 355mm (14")
Portable Cut-off and the successor to the current model
2414NB. Replacement of Abrasive cut-off wheel and
adjustment of Guide plate can be done without any
tools.
CONCEPT AND MAIN APPLICATIONS
PRODUCT
Model No.
Description 355mm (14") Portable Cut-off
LW1400/LW1401
Model No.
Toolless
abrasive cut-off
wheel change
Toolless
guide plate
adjustment
LW1400 Yes
LW1401 No
Large
spark guard
Depends on
country
No
Yes Yes
230
240
50/60
50/60
10
9.6
2,200
2,200
1,350
1,350
3,600
120 50/6015 --- 800 3,200
220 50/6010.5 2,200 1,350 3,600
3,600
Continuous Rating (W)
Voltage (V) Cycle (Hz) Input Output Max Output (W)Current (A)
Specification
110 50/6015 1,650 800 3,200
25.4 (1)
Wheel
size: mm (") Hole diameter
Thickness
355 (14)
3 (1/8)
Specification Model
Diameter
Weight according to
EPTA-Procedure 01/ver.2.1*1: kg (lbs)
LW1401LW1400
17.2 (37.9)*2, 18.7 (41.2)*3,
17.0 (37.5)*4
16.8 (37.0)*2, 18.3 (40.3)*3,
16.6 (36.6)*4
3,800
No
No
Yes
Yes
Toolless Guide plate adjustment
No load speed: min
-1
= rpm
ChainPin
Saw head locking device
for storage and transport
YesQuick release vise
Australia, Brazil: 2.0 (6.6), Other countries: 2.5 (8.2)
Power supply cord: m (ft)
Double insulationProtection from electric shock
Wheel change
Dimensions: mm (")
Width (W)
Height (H)
Length (L) 500 (19-3/4)
620 (24-3/8)
290 (11-3/8)
640 (25-1/4)
295 (11-5/8)
Except EuropeEurope
LW1401
530 (20-7/8)
640 (25-1/4)
295 (11-5/8)
LW1400
90° 45°
D
H
W115 (4-1/2) x 130 (5-1/8)
102 (4) x 194 (7-5/8)
70 (2-3/4) x 233 (9-1/8)
137 (5-3/8) x 137 (5-3/8)
10 (3/8)
100 (4) x 100 (4)
10 (3/8)
W
H
S S
Miter angle
Cross section of
workpiece
D: Diameter
W: Width
H: Height
S: Side
T: Thickness
T
ø127 (5) ø127 (5)
119 (4-11/16) x 119 (4-11/16) 106 (4-3/16) x 106 (4-3/16)
*1 With Abrasive cut-off wheel 355 *2 For North America and South America *3 For Europe
*4 For all countries except North America, South America and Europe
115 (4-1/2) x 103 (4-1/16)
H x W
H x W
S x S
T
Capacity: mm (")
P 1/ 15
January 2016
H
L
W
LW1401LW1400
Note:
For some countries, product appearances may vary from
the above images because some parts are country-specific.
TECHNICAL INFORMATION
OFFICIAL USE
for ASC & Sales Shop

1Standard equipment
Abrasive cut-off wheel 355
Socket wrench 17 (for LW1401 only)
Note: The standard equipment may vary by country or model variation.
2Optional accessory
Abrasive cut-off wheel 355
3Index
1Standard equipment.............................................................................................................................................................2
2Optional accessory ..............................................................................................................................................................2
3Index....................................................................................................................................................................................2
4Caution ................................................................................................................................................................................2
5Repair ..................................................................................................................................................................................3
5-1 NECESSARY REPAIRING TOOLS .........................................................................................................................3
5-2 LUBRICANT AND ADHESIVE APPLICATION ....................................................................................................4
5-3 DISASSEMBLY/ASSEMBLY...................................................................................................................................5
5-3-1 Armature.............................................................................................................................................................5
5-3-2 Handle section ....................................................................................................................................................5
5-3-3 Helical gear 50....................................................................................................................................................6
5-3-4 Vise Section ........................................................................................................................................................8
5-3-5 Guide plate..........................................................................................................................................................9
5-3-6 Main frame, Base and others ............................................................................................................................ 11
6Circuit diagram..................................................................................................................................................................13
7Wiring diagram..................................................................................................................................................................14
4Caution
Repair the machine in accordance with “Instruction manual” or “Safety instructions
Follow the instructions described below in advance before repairing:
· Wear gloves.
· Remove Abrasive cut-off wheel.
· When the engine is hot from use, cool down the engine enough or you can get burned.
· In order to avoid wrong reassembly, draw or write down where and how the parts are assembled, and what are the parts.
· It is also recommended to have boxes ready to keep disassembled parts by group.
· Handle the disassembled parts carefully.
· If some bolts and screws are too tight, use an impact driver.
· Tighten the bolts and the screws to the specified torque.
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5Repair
5-1 NECESSARY REPAIRING TOOLS
Code No.
Description
Use for
1R003
Retaining ring S pliers ST-2N
removing/ assembling Pipe 20-128
1R030
Bearing setting pipe 25-17.2
press-fitting Spindle
1R033
Bearing setting plate 10-2
press-fitting Spindle
1R258
V block
disassembling Vise assembly
1R291
Retaining ring S and R pliers
removing Retaining ring
1R269
Bearing extractor
removing Ball bearing 6000ZZ
1R308
Spring pin extractor 4.0
extracting Spring pin 4
1R309
Spring pin extractor 5.0
extracting Spring pin 5
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5-2 LUBRICANT AND ADHESIVE APPLICATION
Apply the following lubricants to protect parts and product from unusual abrasion.
Outer
periphery of
pipe 20-128
(77)
Apply 25g of Makita grease FA No.2 to Gear
section.
Apply Makita grease FA No.2.
Outer periphery of Sleeve 20 (112)
Safety cover (17)
Apply Makita greaseFANo. 2 to fill the gap between
Safety cover (17) and Ring 17 (14) for dust-proof.
On the outer periphery of O ring 7 (114)
attached Stopper pin (only LW400)
Ring 17 (14)
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5-3 DISASSEMBLY/ASSEMBLY
5-3-1 Armature
5-3-1-1 Disassembling
5-3-2 Handle section
5-3-2-1 Disassembling
5-3-2-2 Assembling
Fig. 1-1
1) Remove Carbon brush (45).
2) Unscrew seven M5×40 P.H . screws (34, 46) and
remove Motor section with handle section from the
main unit.
Fig. 1-2
3) Pull out Armature (51) by hand.
4) Pull out Ball bearing (50, 54) with 1R269.
Armature (51)
Note: Be careful not to lose off
Stopper (55).
Fig. 2-1
1) Unscrew four 4×18 Tapping screws (32) and three
M5×40 P.H. Screws (34) and remove Handle L (30).
Handle L (30)
Fig. 2-2
2) Remove Power supply cord (40) and Switch (24) etc.
Switch (24)
Fig. 2-3
1) Set Switch lock (26), Switch lever (25) and
Compression spring 4 (27) in place.
Note: Fix Switch button
(31) after Handle L (30)
is installed.
Compression
spring 4 (27)
Switch lock (26)
Switch lever (25)
Fig. 2-4
2) Press Switch button (31) into Handle L (31) with a
click sound.
Switch
button (31)
Handle L (31)
Power supply cord (40)
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5-3-3 Helical gear 50
5-3-3-1 Disassembling
Fig. 3-1
1) Remove Wheel.
2) Remove O ring 14 (13) with an
awl etc. and then remove Ring 17
(14) and Flange 90 (15).
O ring 14 (13)
Ring 17 (14)
Flange 90 (15)
Fig. 3-2
3) Remove four M5x20 PH screws
(2). And then remove Safety cover
(17) and Ring 17 (16).
Ring 17 (16)
Safety cover (17)
Fig. 3-3
4) Remove Bearing box (19) by
prying it off with 1R263.
Bearing box (19)
IR263
IR263
Fig. 3-4
5) Remove Ball bearing 6000ZZ with 1R269.
Note: Spindle can be removed without removing the Ball
bearing.
Ball bearing 6000ZZ (22)
Fig. 3-5
6) Set Spindle (21) with Bearing box section around the
30mm groove side of Arbor press. Press down Spindle
(21) with IR286.
Note: Helical gear 50 (20) and Spindle (21) are not pressed fit.
Bearing box
section
Helical gear
50 (20)
Spindle
(21)
Groove: 30mm
1R286
Arbor press
Fig. 3-6
7) The component of Gear section is as follows.
Spindle (21)
Ball bearing 6000ZZ (22)
Helical gear 50 (20)
Bearing box (19)
Ball bearing 6203ZZ (18)
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5-3-3-2 Assembling
Fig. 3-7
1) Insert Spindle into Helical gear 50 (20).
Helical gear 50 (20)
Fig. 3-8
2) Put Spindle (21) onto 1R033.
Press fit Ball bearing 6203ZZ (18) with 1R030.
Arbor press
Helical gear 50 (20)
Bearing Box (19)
1R033
Fig. 3-9
3) After removing O ring 65 (1) from Bearing box (19),
lubricate Makita grease FA No.2.
Note: Be sure to attach O ring 65 (1) to Bearing box (19).
And then apply Makita grease FA No.2 to avoid tear of
the O ring.
O ring 65 (1)
Bearing box (19)
Spindle (21)
1R030
Ball bearing
6203ZZ (18)
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5-3-4 Vise Section
5-3-4-1 Disassembling
Fig. 4-1
1) Remove two M8x30 PH Screw (70) with No.3
phillips Bit and Cordless impact driver. Remove Pin
16 (89) by sliding Vise Ass’y (119).
No.3 phillips Bit
M8x30 PH Screw (70)
(2 pcs.)
Pin 16 (89)
Remove at this point.
3) Chain should be fixed to Screw guide (67) to
clamp main body as the below photos.
Projection
Screw guide (67)
Chain (64)
M8x30 Pan head
Screw (70)
Fig. 4-3
3) Put Vise on IR258. Remove Spring pin 5-36 (68) and
Spring pin 4-16 (69) with1R308 and 1R309.
IR 309
IR 258
Fig. 4-4
4) The component of Vise section (119) is as follows.
Remove Plate (66) by
prying it off with a slotted
screwdriver.
Note: Plate (66) is
non-directional
Plate (66)
Screw guide (67)
Handle 120 (59)
Vise screw (60)
Vise nut (65)
Note: Directional
**Spring pin 5-36 (68)
*Spring pin 4-16 (69)
* with 1R308 to assemble
** with 1R309 to assemble
Fig. 4-2 (only LW1401)
**Spring pin
5-20 (58)
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5-3-5 Guide plate
5-3-5-1 Disassembling (LW1400’s case)
Fig. 5-1
1) Loosen Knob 40 (72) and then
remove Guide plate (73) from
Base (86).
Fig. 4-5
5) Remove Retaining ring S-8 (87) and Retaining ring
S-16 (90) with 1R291.
Retaining ring S-16 (90)
Retaining ring S-8 (87)
1R291
Pin 16 (89)
Vise plate (92)
Fig. 4-6
6) The components of Vise ass’y (119) is as follows.
Note: Be careful of the direction for each part.
wide
narrow
Pin 16 (89) has
to be assembled
as shown in the
figure on the
left.
Flat washer 8 (88)
Flat washer 8 (91)
Knob 40 (72)
Fig. 5-2
2) Remove Lever 125 (101) by
loosening M5x6 H.S.Set screw
(100). Then remove M10x20
Collar bolt (71).
M5x6 H.S.Set
screw (100)
M10x20 Collar
bolt (71)
Fig. 5-3
3) Remove Stop ring E-8 (110) with
a slotted screwdriver like turning
and prying it.
Note: Be sure not to lose Stop ring.
Guide plate (73)
Lever 125 (101)
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5-3-5-2 Assembling
Fig. 5-4
4) The component of Guide plate is as follows.
Stop ring E-8 (110)
Guide plate (73)
Guide base (111)
Thin washer 10 (106)
Flat washer 10 (104)
Thin washer 10 (109)
Thrust needle cage
1024 (108)
Thrust needle cage
1024 (105)
Thin washer 10 (107)
Flat washer10 (102)
Sleeve 11 (103)
Knob 40 (72)
Lever 125 (101)
M5x6 H.S.Set screw (100)
M10x20 Collar bolt (71)
Fig. 5-5
1) Mount Lever 125 (101) to Guide plate (73) and
then fix it with M5x6 H.S.Set screw (100).
Lever 125 (101)
M5x6 H.S.Set screw (100)
Fig. 5-6
2) Lever 125 (101) must be mounted within 20 degrees from
perpendicular to the surface of Base (86).
Within 20°
Lever 125 (101)
Base (86)
Guide plate (73)
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5-3-6 Main frame, Base and others
5-3-6-1 Disassembling
Fig. 6-1
1) Push down the motor section, and then hold the main body as follows:
· (LW1400) with Stopper pin (115)
· (LW1401) with chain (64) on Handle set (23, 30)
LW1401
Chain (64)
LW1400
Stopper pin (115)
Fig. 6-2
2) Remove M6x12 PH screw (82) for fixing
Spark guard (81). Then remove Spark
cover (99) by unscrewing two M4x6
PH screws (98).
Spark guard (81)
Base (86)
Spark cover
(99)
Fig. 6-3
3) Set Eye wrench 10 to M6 Hex nut (118) and remove
M6x12 Hex socket bolt (116) using Hex wrench 5.
4) Hold Gear housing complete firmly and then release
Stopper pin (115) or Chain (64) slowly to move up Gear
housing complete.
Fig. 6-4
5) Remove M10x140 Hex bolt (85) and M10-17 Hex nut
(74) with Wrench 17 and Socket bit 17 and Cordless
impact driver.
Note: Before assembling, apply Makita grease FA No.2 a
little in the position shown by the yellow arrow.
Wrench 17
Socket
bit 17
Fig. 6-5
6) Lay the main frame on its side so that Safety cover
comes to the bottom.
Safety cover (17)
Fig. 6-6
Pull out Pipe 20-128 (77) while rotating with 1R003.
The plier can hold the inside of Pipe.
Note: Before assembling, apply Makita grease FA No.2
a little in the position shown by the yellow arrow.
ﾊﾟｲﾌﾟ
20-128
1R003
Pipe 20-128 (77)
Eye wrench 10
Hex wrench 5
M6 Hex nut
(118)
M6x12 Hex
socket bolt (116)
Makita Corporation 11 / 15

Fig. 6-7
7) Put the main frame on its side.
Mount Torsion spring 33 (78) as
shown below.
Note: If it is reversely mounted, Spring
does not work properly.
Fig. 6-8
8) Insert M6x16 H.S.Set screw (63) into Gear housing. Then adjust this Screw
so that the main body can move up and down surely and fully.
M6x16 H.S.Set screw (63)
Fig. 6-9
9) Assemble Spark Guard (81) to Base (86) while pressing in the direction of the arrows.
Fig. 6-10
Note: To prevent melting by heated chips, Cushion (83) is not
installed at Spark guard (81) position.
Spark guard (81)
Cushion (83)
Base (86)
Spark guard
Spark guard
Spark guard
Base
Base
Base
Makita Corporation 12 / 15

6Circuit diagram
Switch
Field
(2)
Black/AWG16
Black/AWG16
(3)
Noise suppressor
（If it is used）
Line filter
（If it is used）
Black/AWG16
White/AW G 16
(5)
(4)
Blue or white
Brown or black
White/AW G 20
Field
(2)
Black/AWG16
(3)
Noise suppressor
Line filter
White/AW G 16
(5)
(4)
Line filter
Black/AWG16
Choke coil
Black/AWG16
Tool head
Black/AWG16
Non-insulated connector
Blue or white
Brown or black
White/AW G 20
Switch circuit
＊View from commutator side
(Except UK 110V)
Tool head
Switch
Power supply cord
Power supply cord
Rear side of tool
Non-insulated connector
Rear side of tool
Makita Corporation 13 / 15

7Wiring diagram
· Put Field lead wires into Lead wire holders as shown
below.
< UK 110V>
· Put Field into Motor housing as shown below.
Field lead wire
（
White
）
Lead wire holder
Field lead wire
（
Black
）
Field lead wire (Black, White)
<Except UK 110V>
Lead wire holder
Makita Corporation 14 / 15

Note: Fix Power supply cord with
the edge of sheath set i
n the range A.
Range A
シースの端
Power supply cord
リブ
A
Edge of sheath
Rib A
Field Lead wire (White) has to be fixed in this
Lead
wire holder.
< UK 110V>
Two
Lead wires of Power supply cord have to be fixed
th
rough the hole of Line filter as shown below.
Lead wires connected Switch has to be
fixed between
these ribs.
Lead wires of Power supply cord
ha
ve to be fixed.
Field Lead wire has to be
fixed into Lead
wire holder A.
Lead wire of Noise suppressor has
to be fixed as shown below
.
Lead wire of Noise su
ppressor has
to be pull
ed out from Groove A.
(
When Noise suppressor is used.)
Switch
Field Lead wire has to be
fixed between these ribs.
Rib B
Lead wire holder A
Groove A
Field Lead wire has to be fixed through the
hole of Line filter between Rib B and Lead
wire holder A. (When Line filter is used.)
Makita Corporation 15 / 15