Makita LH1040 Manual

Models No.
Description
PRODUCT
TECHNICAL INFORMATION
CONCEPT AND MAIN APPLICATIONS
Specification
P 1 / 20
Dimensions: mm (")
Width (W)
Height (H)
Length (L)
476 (18-3/4)
530 (20-7/8)
535 (21)
LH1040, LH1040F
Table Top Miter Saw 260mm (10-1/4")
Models LH1040 and LH1040F have been
developed as multi-purpose miter saws.
Installation of a table on Model LS1040
has enabled miter saw and table saw to be
packed in one tool for great versatility.
LH1040F features LED built-in job light
for accurate tracing of ink line in dark places.
Continuous Rating (W)
Voltage (V) Cycle (Hz) Input Output Max. Output(W)
120
110 15 1,650
1,650
2,30050 / 60
7.9 1,650 1,000 2,30050 / 60
7.5 1,650 1,000
1,000
1,000
2,30050 / 60
7.2 1,650 1,000 2,30050 / 60
15 2,30050 / 60
220
230
240
Current (A)
Model No.
No load speed: min-1 = rpm.
Cutting capacity as Miter Saw
LH1040
Double insulation
LH1040F
Diameter
Hole diameter
Protection against electric shock
Cord length: m (ft)
Net weight: kg (lbs)
LED job light
Miter angle
Bevel angle
Electric brake
Saw blade: mm (")
No Yes
Yes
4,800
255 - 260 (10 - 10-1/4 )
15.88 (5/8) 30.0 ( for European countries)
Table saw
Miter saw
Capacity: mm (")
(with 260 mm saw)
40 (1-9/16 )
See the table below.
2.5 ( 8.2 )
13.7 (30.2 )
90 °
45 ° Left
69mm x 130mm (2-3/4" x 5-1/8")
93mm x 95mm (3-5/8" x 3-3/4")
35mm x 130mm (1-3/8" x 5-1/8")
53mm x 95mm (2-1/16" x 3-3/4")
35mm x 65mm (1-3/8" x 2-9/16")
49mm x 42mm (1-15/16" x 1-5/8")
35mm x 91mm (1-3/8" x 3-5/8")
49mm x 67mm (1-15/16" x 2-5/8")
69mm x 85mm (2-3/4" x 3-3/8")
93mm x 67mm (3-5/8" x 2-5/8")
69mm x 85mm (2-3/4" x 3-3/8")
93mm x 67mm (3-5/8" x 2-5/8")
45 ° Left bevel
90 °
45 ° Right
W
L
H
Standard equipment
Optional accessories
Note: The standard equipment listed above may differ from country to country.
TCT saw blade 260mm .......... 1 pc
Dust bag ................................. 1 pc
Holder set ............................... 1 pc
Sub plate ass'y ........................ 1 pc
Socket wrench 13 ....................... 1 pc
Ring 16 (adaptor for saw blades
with 25mm hole diameter) ......... 1 pc
Triangular rule ............................ 1 pc
Set plate ................................... 1 pc
Blade cover .............................. 1 pc
Push stick ................................. 1 pc
Guide rule rule ........................ 1 pc
Vertical vise
Horizontal vise
Holder set
Assorted TCT saw blades

P 2 / 20
Repair
1) Apply 12g of Makita grease N No.1 to the gear portion.
2) Apply an appropriate amount of Makita grease N No.1 to each of the listed below.
Although these slide surfaces are factory-greased with Makita grease N No.1, you apply other type of grease such as
Makita grease N No.2 or the like.
[2] LUBRICATION
1R235/ Round Bar for Arbor 6-100* (2 pcs) Disassembling Blade case
1R269/ Bearing Extractor Removing Ball bearings
1R208/ 90 Degrees Set Square Squaring Saw blade with Base
1R229/ 1/4" Hex shank bit for M5 Removal/Installation of screws that fasten Bearing box
1R306/ Ring Spring Removing Jig** Disassembling Blade case
1R340/ Wrench for Bearing Retainer
*Note: Disassembling can be done also using two Phillips screwdrivers of 6.5X100mm or larger size instead.
**Note: Disassembling can be done also using 1R201/ Jig for Retaining Ring.
Removal/Installation of Bearing retainer
1R291/ Retaining Ring S and R Pliers Removal/Installation of the Retaining ring
1R045/ Gear Extractor (large) Disassembling Gear housing cover and Bearing box
1R035/ Bearing Setting Plate 15.2 Press-fitting Ball bearings
Tool No./ Description Use for
[1] NECESSARY REPAIRING TOOLS
CAUTION: For your safety, before maintenance or repair, be sure to;
1. Disconnect the machine from the power source.
2. Remove the saw blade from the machine.
Pipe 9-126
Lever 54
Lever 54
Switch box
Compression
spring 27
Safety cover
Torsion
spring 36
Blade case
Position
No. Parts item Portion to be lubricated
1
Center cover24
Gear portion
Accepting hole for compression spring 27
The pivotal portion where arm contacts
The portion where torsion spring 36 contacts
Table support99
101
The elliptic punched hole where lever 54 contacts, when table support
is slidden up and down.
The elliptic punched hole where pipe 9-126 contacts, when support plates
are slidden up and down.
The side where (1) Blade Case contacts, when table support
is slidden up and down.
Support plate
Fig.1-1
The appropriate amount is 12g.

Repair
P 3 / 20
[2] LUBRICATION
Position
No. Parts item
Hex bolt M10 Threaded portion
124
Rod 16 The surface where (127) Arm Complete contacts.
126
Arm complete Accepting portion for pivoting (1) Blade Case
Accepting portion for pivoting (127) Arm Complete
The portion where (145) turn base contacts, when arm complete pivoting.
127
Stopper pin129
Slide plate135
Portion to be lubricated
O ring 5
The groove to which O ring 5 is mounted.
The surface where (145) turn base contacts
Turn base145
Accepting boss for the shaft of (145) Turn Base
Base complete147
Both edge which contacts its accepting portion of (145) Turn Base
Knock spring150
Tip of the threaded portion with which (150) Knock spring is pushed toward
(145) Turn Base
Grip 32
Thumb screw
151
Accepting portion
for (150) Knock Spring
Fig.1-2
Rip fence
A Tip of the threaded portion

Repair
P 4 / 20
< 3 > Removing table
Cover complete
Pan head
screw M5x16
1. Lift up table by loosening two 54 levers which are equipped under the table. See Fig.2-1.
2. Lift up the table to the highest level. See Fig.2-1.
3. Remove pan head screw M5x16 and remove cover complete from riving knife. See Fig.2-2.
4. Remove 8 M5x16 countersunk head screws. Then, table can be removed from blade case. See Fig.2-2.
And remove compression spring 27 from blade case. See Fig.2-2.
(In case of model LH1040 without fluorescent job light)
4A. While lifting up the table, remove light circuit from the table. Then, table can be removed from blade case.
And remove compression spring 27 from blade case. See Fig.2-2.
(In case of model LH1040F with fluorescent job light)
1. Secure table with 8 M5x16 countersunk head screws. Refer to Fig.2-2.
2. While lifting up table to the highest level, mount compression spring 21 by inserting it from the side.
3. Take the left step with referring to the above Figs.
Countersunk head
screw M5x16 (8 pcs.)
Hex lock nut M5-8
Table
Table
Riving knife
Lever 54
Fig.2-1
Fig.2-2
Compression
spring 21
< 4 > Mounting table
Table

Repair
P 5 / 20
< 5 > Removing blade case section
1. Remove living knife. See Fig.3-1.
2. Remove lever 54, support plate and pipe 9-126. See Fig.3-1.
The pipe 9-126 removed in this step, is used as a jig for removing rod 16 which functions as a pivot for blade case.
3. Loosen lever 54 and press table support down to the surface of blade case. See Fig.3-2.
Hex flange
head bolt M8x20
Living knife Support plate
Pipe 9-126
Lever 54
Fig.3-1 Fig.3-2
Rod 16
Table support
Lever 54
Guard holder
Pan head
screw M5x16
Guard
Table support
4. Remove two M5x16 pan head screws. Now guard with guard holder can be removed from blade case. See Fig.3-3.
5. Remove hex socket button head screw M6 (adhesive type), flat washer 7 and ring 7. Now the linkage of link plate with
arm complete has been disconnected. See Fig.3-4.
6. Remove stop ring E-5, flat washer 6 and ring 6. then, link plate can be removed from blade case. See Fig.3-5.
Blade case
Blade case
Fig.3-3 Fig.3-4
Link plate
Arm complete
Hex socket button
head screw M6
Flat washer 7
Ring 7
Fig.3-5
Ring 6
Flat washer 6
Stop ring E-5 Link plate

Blade
case The portion scratched with
hex socket head bolt M6x10
The scratch on the accepting holes
is minimized to this area.
Repair
P 6 / 20
< 5 > Removing blade case section
7. Lower the blade case section to the possible lowest position, and lock it at the same position with stopper pin.
See Fig.3-6.
8. While further pressing the blade case section, insert two screwdrivers into the side hole of blade case.
See Fig.3-7. Or insert No.1R238 "Round Bar for Arbor" as illustrated in Fig.3-7A.
9. Loosen hex socket head bolt M6x10 with hex wrench. See Fig.3-7.
10. Apply pipe 9-126 on rod 16, and remove it by striking the pipe with plastic hammer toward the side of hex
socket head bolt M6x10. See Fig.3-8. Now blade case section can be separated from arm complete.
Fig.3-6 Fig.3-7
Fig.3-7A Fig.3-8
Stopper pin
Pipe 9-126 Rod 16
Hex socket
head bolt M6x10
Hex socket
head bolt M6x10
<Note>
In order to minimize scratch on the accepting holes for rod 16, remove it toward
the side of hex socket head bolt M6x10. See Fig.3-8A.
Hex wrench
Hex wrench
No.1R238
Round Bar for Arbor
Hex socket
head bolt M6x10
Screwdriver
Screwdriver
Hex socket head bolt M6x10
Rod 16
Direction for
removing rod 16
Arm complete
Fig.3-8A

Repair
P 7 / 20
< 5 > Removing blade case section
11. Put the removed blade case section on the turn base of arbor press, And set 1R306 "Ring Spring Removing Jig"
between the two screwdrivers, inserted in the step of Fig.3-7. See Fig.3-9.
12. Press down 1R306 "Ring Spring Removing Jig" with arbor press. So, spring holder is pressed down and
the screwdrivers can be pulled out from blade case.
13. Put the removed blade case section on the turn base of arbor press, And set 1R306 "Ring Spring Removing Jig"
between the two screwdrivers, inserted in the step of Fig.3-7. See Fig.3-9.
14. Press down 1R306 "Ring Spring Removing Jig" with arbor press in order to lower spring holder,
while holding the blade case section firmly, so that it does not tilt or wobble.
15. Slowly lessen the pressure to 1R306 "Ring Spring Removing Jig", while holding the blade case section
firmly, so that it does not tilt or wobble. See Fig.3-10.
16. Remove spring holder and compression spring 27 from blade case, when the jig gets free from the force
of compression spring. See Fig.3-10.
Blade case section
Blade case section
Screwdriver
Arbor press
No.1R306
Ring Spring Removing Jig
Fig.3-9
Spring holder
Compression spring 27
Fig.3-10
Slowly lessen the
pressure to the jig.
No.1R306
Ring Spring
Removing Jig

Blade
case
Repair
P 8 / 20
< 5 > Mounting blade case section
< 6 > Disassembling safety cover section
< 7 > Assembling safety cover section
1. Take the reverse step of removing, while paying attention to the following matters.
A. Scrape off the scratched portion of rod 16 with file, before mounting.
Mount rod 16 from the side of hex socket head bolt M6x10 . See Fig.4-1.
B. When pulling out two screwdrivers in the final step, press the blade case section down to the possible
lowest position. Then, at the same time, spring holder is mounted to the original position automatically.
C. Apply the adhesive to hex socket button head screw M6 with which link plate is secured to arm complete.
Refer to Fig.3-4.
The portion scratched with
hex socket head bolt M6x10,
has to be scraped off, before
mounting.
Hex socket
head bolt M6x10
Rod 16
Direction for
mounting rod 16
Arm complete
Fig.4-1
Hex flange head
bolt M8x12
Safety cover
Safety cover
Flat washer 5
Pan head
screw M5x12
Torsion spring 36
Blade case section
Socket head
flange screw M6
No need to remove socket head flange screw M6
from center cover, for easy reassembling.
Hex wrench
Tapping screw
bind PT3x8
Center plate
Center cover
Fig.5-1 Fig.5-2
1. Loosen hex flange head bolt M8x12. Remove socket head flange screw M6 with hex wrench, inserted through
the punched hole of safety cover. Now safety cover section can be separated from blade case. See Fig.5-1.
2. The safety cover section can be disassembled by unscrewing pan head screw M5x12. See Fig.5-2.
1. In case of the disassembling as illustrated in Fig.5-2, tapping screw bind PT3x8 has to be
removed from safety cover before reassembling.
2. Drive tapping screw bind PT3x8 again, after mounting torsion spring 36, center cover and center plate.
Refer to Fig.5-2.

Repair
P 9 / 20
< 8 > Disassembling motor section
< 9 > Assembling motor section
1. Remove carbon brush. See FIg.6-1.
And then, remove table from blade case section as illustrated in Fig.2-1 and Fig.2-2.
2. Remove lever 54 and support plate. See Fig.6-2.
3. After removing four M6x60 pan head screws, motor section can be separated from blade case. See Fig.6-3.
<Note>
Compression spring 9 for shaft lock falls off easily from the machine, when separating motor section
from blade case. Be careful, not to lose this spring.
Brush
holder cap
Carbon brush
Brush holder cap Carbon brush
Fig.6-1 Fig.6-2
Lver 54
Pan head
screw M6x60
Support plate
Pan head screw M6x60
Compression spring 9
Fig.6-3
Shaft lock
1. Putting shaft lock into the notch of motor housing, mount armature to motor housing. See Fig.7-1.
2. While pushing shaft lock to the direction designated with black arrow, mount the motor section
to blade case in order to avoide piching of shaft lock between motor housing and blade case. See Fig.7-2.
3. Take the reverse step of disassembling after the above process.
Compression spring 9
Shaft lock
Shaft lock
Notch for shaft lock slide
Armature
Fig.7-1 Fig.7-2

Repair
P 10 / 20
< 10> Disassembling safety block mechanism
<11> Assembling safety block mechanism
1. Lock the blade case section at the possible highest position, with stopper pin.
2. Remove lock lever by unscrewing 2 M4x10 pan head screws. Then, lock lever can be removed from lock pin.
See Fig.8-1.
3. Remove motor section as shown in <8> Disassembling motor section, when removing lock pin 8. See Fig.8-2.
Pan head screw M4x10
Lock pin 8
Lock lever
Fig.8-1 Fig.8-2
Lock pin 8
Torsion spring 9
Hold this side
with switch box.
Hooked tail of torsion
spring 9, put on lock lever
Switch box
Switch button
Preliminary tightening
with one M4x10 pan
head screw
Switch box
Slide lock lever to
switch button side,
when preliminary
tightening.
Lock lever
Torsion spring 9
Torsion spring 9
Lock pin 8
1. Pass lock pin 8 through torsion spring 9, and hold its tail with switch box. See Fig.9-1.
2. While sliding lock lever to switch button side, tighten lock lever with one M4x10 pan head screw preliminarily.
See Fig.9-2.
3. Nip the hooked tail of torsion spring 9 and put it on lock lever. See Fig.9-3.
Lock pin 8
Switch box
Fig.9-1 Fig.9-2
Fig.9-3
Switch box

Repair
P 11 / 20
<11> Assembling safety block mechanism
<12> Removing turn base
4. Adjust the position of lock lever so that the distance between lock lever and safety cover is approx. 1mm.
See Fig.9-4. And then, finally tighten lock lever with 2 Mx10 pan head screws.
1. Remove grip 32. From the bottom side of base, unscrew pan head screw M5x12. Now knock spring can be removed.
See Fig.10-1.
2. After removing guide fence, lever up kerf board with screwdriver to remove them. See Fig.10-2.
3. Remove hex lock nut M8x13 and flat washer 8. Now turn base can be removed from base. See Fig.10-3.
Fig.9-4
Approx. 1mm
Lock lever
Safety cover
Pan head screw M5x12
Knock spring
Grip 32
Turn base
Fig.10-1 Fig.10-2
Guide fence
Hex bolt M8x30
Hex bolt M8x30
Kerf board
Screwdriver

Repair
P 12 / 20
<12> Removing turn base
<13> Mounting turn base
<14> Angle adjustment of saw blade
3. Remove hex lock nut M8x13 and flat washer 8. Now turn base can be removed from base. See Fig.10-3.
1. Mount turn base and flat washer 8, and tighten hex lock nut M8x13 with socket wrench 13.
The hex lock nut M8x13 has to be so tightened, that turn base can move without wobbling.
2 Take the reverse step of disassembling after the above process.
1. Adjusting to 90 ° to turn base,
While applying 1R208 "90-degree Set Square", turn Hex bolt M8x28 of motor housing side,
until both saw blade and turn base contact the jig closely. See Fig.11-1.
2. Adjusting to 45 ° to turn base,
While applying 1R207 "45-degree Set Square", turn Hex bolt M8x28 of saw blade side,
until both saw blade and turn base contact the jig closely. See Fig.11-2.
Hex lock nut M8x13
Socket wrench 13
which comes
with the product.
Flat washer 8
Turn base
Base
Fig.10-3
Hex bolt M8x28
of motor housing side
Hex bolt M8x28
of saw blade side
1R208
90-degree Set Square
1R209
45-degree Set Square
Fig.11-1 Fig.11-2
Turn base Turn base

Repair
P 13 / 20
<15> Squaring adjustment of guide fence
<16> Repairing switch section
1. Set the bevel angle 90 °.
2. Provisionally tighten M8x30 hex bolt (B) into the smaller screw hole on the left side of guide fence
when viewed from operator's position.
3. While checking the angle of guide rule to saw blade using 90 Degrees set square (No.1R208), pivot the guide fence
by moving its right end until the angle is 90 degrees .
4. After completion of squaring adjustment, securely tighten four M8x30 hex bolts; first A and D, then B and C.
Screw hole smaller
than the other 3 screw holes.
Saw blade
Handle cover can not be separated from switch box without removing lock lever of safety lock mechanism.
Remove lock lever as illustrated in Fig.8-1.
1. Remove handle cover, Now relay can be replaced. See Fig.13-1.
90 Degrees set square
(No.1R208)
ABD
C
Hex bolt M8x30 Hex bolt M8x30
Operator's position
When adjusting,
move this side.
Guide fence
Fig.12-1
Relay
Handle cover
Switch box
Fig.13-1
Fig.13-2
2. Do not forget to mount clamp plate and felt ring 6, when assembling switch section. And do not remove sponge
sheet from handle cover, when mounting it to switch box. Because these three parts protect the machine
against saw dust. See Fig.13-2.
Clamp plate Pin
Felt rig 6
Pin
Switch box
Switch button OFF
Switch button ON
Handle cover
Sponge sheet
Motor housing

**Noise suppressor
**Noise suppressor: The product is supplied without equipping
noise suppressor for some countries.
Switch box
Light switch box
(1) LH1040F with fluorescent job light for
* High voltage area in Europe,
* High voltage area in Saudi Arabia
* Cyprus
* Kuwait
* Bhutan
P 14 / 20
Circuit diagram
Black
White
Red
Orange
Blue
Brown
Yellow
Purple
Gray
Color index of lead wires' sheath
41 31 13A1
42 32 24A2
Light circuit
Terminal
block
Power supply
cord
Circuit for
soft start
*Main switch
(Relay)
Brush holder
(Table side)
Brush holder
(Turn base side)
Varnish tetron
tube
Switch for light
Motor housing
Sponge
*Main switch
(Relay): Its terminal No. 31, 3, 42,
2 and A2 are equipped with
receptacle sleeves.

P 15 / 20
41 1 A1
A2
35
64242
*Main switch
(Relay)
Switch box
Light switch box
Motor housing
Brush holder
(Table side)
Brush holder
(Turn base side)
Power supply
cord
Circuit for
soft start
Light circuit
Switch for light
Noise suppressor
Line filter Varnish tetron
tube
Sponge
Terminal
block
*Main switch
(Relay): Its terminal No. 42, 4, 5
and A2 are equipped with
receptacle sleeves.
(2) LH1040F with fluorescent job light
for Low voltage in Great Britain
Circuit diagram
Black
White
Red
Orange
Blue
Brown
Purple
Yellow
Color index of lead wires' sheath

(1) LH1040 without fluorescent job light, for
* High voltage area in Europe,
* High voltage area in Saudi Arabia
* Cyprus
* Kuwait
* Bhutan
P 16 / 20
Circuit diagram
Black
White
Red
Orange
Yellow
Purple
Gray
Color index of lead wires' sheath
Switch box
Motor housing
41 31 13A1
42 32 24A2
*Main switch
(Relay): Its terminal No. 31, 3, 42,
2 and A2 are equipped with
receptacle sleeves.
*Main switch
(Relay)
**Noise suppressor
**Noise suppressor: The product is supplied without equipping
noise suppressor for some countries.
Power supply
cord
Circuit for
soft start
Terminal
block
Brush holder
(Table side)
Brush holder
(Turn base side)
Sponge
Varnish tetron
tube

P 17 / 20
(2) LH1040 without fluorescent job light
for Low voltage in Great Britain
Circuit diagram
Black
White
Red
Orange
Blue
Brown
Purple
Color index of lead wires' sheath
41 1 A1
A2
35
64242
*Main switch
(Relay)
Switch box
Sponge
*Main switch
(Relay): Its terminal No. 42, 4, 5
and A2 are equipped with
receptacle sleeves.
Motor housing
Brush holder
(Table side)
Brush holder
(Turn base side)
Power supply
cord
Circuit for
soft start
Line filter Varnish tetron
tube
Terminal
block
Noise suppressor
Yellow

Wiring diagram
P 18 /20
Housing cover
Motor housing
Terminal block
Insulated connector
Soft start circuit
Lead holder
Lead wire of
soft start circuit
Lead wire of soft start
circuit has to be held
with the lead holder.
Punched hole
Do not push insulated connector
into motor housing through the
punched hole.
under Housing Cover
Motor housing Varnish tetron
tube
Varnish tetron
tube
Rib
Field
The lead wires which are put
on the edge of field, have to
be bundled with varnish tetron
tubes by separating in two groups.
And max. four lead wires have to
be in each bundle.

Wiring diagram
P 19 /20
Clamp plate
Line filter
Field lead wire
(orange)
Soft start lead wire
(Purple)
Field lead wire
(orange)
Soft start lead wire
(Purple)
Rib A
Before securing clamp plate,
put the lead wires
between rib A and B.
When line filter is used, pass the following
lead wires through line filter.
* Field lead wire
(orange)
* Soft start lead wire
(Purple)
Rib B
Under clamp plate
In switch box
Inner wall
Noise suppressor
Punched hole
for lead wires
Relay
Rib B
Rib A
Hole for
pipe 9-126
Be careful, not to pinch the lead wires of light circuit
between rib B and relay, when fluorescent job light is installed.
Boss
Put the lead wires, connected to relay
through punched hole, between boss
and rib A.
Put the insulated connectors into
the space between relay and inner wall,
or
push into the punched hole.
Put noise suppressor
into the space between
relay and inner wall,
or
push it into the punched
hole, when it is used.
Switch button
When putting lead wires onto relay,
do not put them on this area.
Put line filter in the space illustrated
above. (exclusively for low voltage
in Great Britain)

Wiring diagram
P 20 / 20
Light Switch Box
Light switch box
Put lead wires in
the lead holder.
Lead holder
Insulated connector
Put insulated terminal in
the space shown in the
above illustration.
Cord of light circuit
Switch for light circuit