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T ECHNICAL INFORMATION
Model No. MT811 W
PRODUCT
P1/8
Description 13mm (1/2") Hammer Drill L
CONCEPT AND MAIN APPLICATIONS
New power tool series from MAKITA
* Less expensive but service life is as long as existing H
MAKITA models.
* Easy to-repair-construction
Dimensions : mm ( " )
Length ( L ) 272 (10-3/4)
Height ( H ) 194 (7-5/8)
Width ( W ) 71 (2-13/16)
Specification
Continuous Rating (W)
Voltage (V) Current (A) Cycle (Hz) Max. Output(W)
Input Output
220 2.0 50 / 60 430 220 340
230 / 240 1.9 50 / 60 430 220 340
No load speed : (min -1= rpm) 0 - 2,800
Blows per min. : (min -1= bpm) 0 - 30,800
Keyless chuck No
Chuck ability : mm ( " ) 1.5 - 13 (1/16 - 1/2)
Steel 13 (1/2)
Drilling
capacity : mm ( " ) Wood 18 (11/16)
Concrete 13 (1/2)
Reverse switch Yes
Protection from electric shock by double insulation
Cord length : m ( ft ) 2.0 (6.6)
Net weight :Kg (lbs ) 1.6 (3.5)
Standard equipment
* Chuck key S13 ............................................... 1 pc.
* Side grip ............................................... 1 pc.
< Note > The standard equipment for the tool shown may differ from country to country.
Optional accessories
* Stopper pole
Features and benefits P2/8
Easy to change working mode Distinctive orange color
with slide type change lever. for MAKTEC series model
Percussion drill Drill
Variable speed control
switch with reversing action
Durable motor housing of
cylindric structure.
Spindle equipped with
dust proof ball bearing
Easy to disassemble and assemble
because of main parts fastened with
machine screws Dust proof washer on all ball bearing,
for protecting from the dust
Comparison of products
Model No. MAKITA Competitor A
Specifications MT811 HP1300S Model A
Chuck ability : mm ( " ) 1.5 - 13 (1/16 - 1/2) 1.5 - 13 (1/16 - 1/2) 1.5 - 10 (1/16 - 3/8)
Input 430 430 400
No load speed : (min -1= rpm) 0 - 2,800 0 - 2,700 0 - 2,600
Blows per min. : (min -1= bpm) 0 - 30,800 0 - 29,700 0 - 41,600
Steel 13 (1/2) 13 (1/2) 8 (5/16)
Drilling
capacity : mm ( " ) Wood 18 (11/16) 18 (11/16) 20 (13/16)
Concrete 13 (1/2) 13 (1/2) 10 (3/8)
Protection from electric shock by double insulation by double insulation by double insulation
Length ( L ) : mm 272 278 275
Dimensions
(") (10-3/4) (11) (10-7/8)
Width ( W ) : mm 71 67 76
(") (2-13/16) (2-5/8) (3)
Height ( H ) : mm 194 192 200
(") (7-5/8) (7-9/16) (7-7/8)
Cord length : m ( ft ) 2.0 (6.6) 2.5 (8.2) 2.0 (6.6)
Net weight :Kg (lbs ) 1.6 (3.5) 1.7 (3.7) 1.6 (3.5)
Repair P3/8
< 1 > Lubrication
Apply MAKITA grease N. No.1 to the following portions marked with black triangle to protect
parts and product from unusual abrasion.
Apply 3.6g of the above mentioned grease Apply 0.1g of the above mentioned grease
to the gear room. to the steel ball and pin accepting hole.
Cam
Pin 4 Apply 0.1g of the above mentioned grease
Spindle to the portion contacting with helical gear 39.
Steel ball 3.5
Gear housing Helical gear 39
< 2 > Disassembling drill chuck
Firmly hold No.1R139 "Drill chuck extractor" with vise. And lock spindle with the drill chuck extractor.
Holding No.1R298 "hex socket" with drill chuck, and turn the hex socket with No.1R223 "Torque wrench"
anti-clockwise. So drill chuck can be disassembled from spindle. See Fig. 1.
< 3 > Assembling drill chuck
Firmly hold No.1R139 "Drill chuck extractor" with vise. And lock spindle with the drill chuck extractor.
Holding No.1R298 "hex socket" with drill chuck, and turn the hex socket with No.1R223 "Torque wrench"
clockwise. So drill chuck can be assembled to spindle. See Fig. 1.
Pre-set the fastening torque of the torque wrench with 25 - 30 N.m, when assembling.
No.1R224 Ratchet head
No.1R298 Hex socket
No.1R223
Torque wrench
1R139 Drill chuck extractor
Fig. 1
< 4 > Disassembling and assembling cam
(Disassembling)
Hold inner housing with vise.
Insert the screwdriver into the space between cam and inner housing.
Disassemble cam with the screwdriver as illustrated in Fig. 2.
(Assembling)
Assemble cam by pressing with arbor press as illustrated in Fig. 3.
Cam
Cam
Inner housing
Inner housing
Fig. 2
Fig. 3
Repair P4/8
< 5 > Disassembling helical gear 39 See Fig. 4.
1. Take off retaining ring S12, pin 4 and steel ball 3.5 from spindle.
2. Set gear housing on No.1R037 "Bearing setting plate", and set No.1R284 "Round bar for arbor" on spindle.
3. Disassemble spindle by pressing the round bar for arbor set on spindle, with arbor press.
Then, helical gear 39 can be removed form gear housing.
Arbor press
Pin 4 Helical gear 39
Steel ball 3.5 No.1R284
Round bar for arbor
Retaining ring S12
Spindle Spindle
Be careful, not to lose pin 4,
steel ball 3.5 and retaining
ring S12, when removing them. No.1R037
Bearing setting plate
Spindle
Fig. 4
< 6 > Assembling helical gear 39 See Fig. 5.
1. Assemble spindle by pressing with arbor press.
2. Assemble helical gear 39 to spindle by pressing 1R028 "Bearing setting pipe" on the helical gear, with arbor press.
3. Fix helical gear 39 with retaining ring S12, and put steel ball 3.5 and pin 4 into the hole of spindle.
Arbor press
No.1R284
Round bar for arbor
Pin 4
Spindle Steel ball 3.5
1R028
Retaining ring S12
Helical gear 39 Bearing setting pipe
Spindle
Gear housing
1R035
Bearing setting plate
Fig. 5
Circuit diagram P5/8
Insulated
Color index of lead wires terminal
Black
White Choke coil
Red
Orange
Purple
Choke coil
Brush Field
holders
Switch
A side
5 4
A
3 6
Switch
2 2a
1a 1b 2b
1 B
Switch
B side
Noise
suppressor
Black White
or brown or blue
Wiring diagram P6/7
Wiring diagram of field lead wires
Put the insulated terminal
Pass field lead wire (red) into the space illustrated below.
between rib B and rib C Field lead wire (red)
as illustrated below.
Field lead
wire (white) Rib A Pass field lead wire
Rib B (white) between rib A
Rib C and rib B.
Field lead Boss A Rib D
wire (black)
Rib E
Pass field lead wire
(red) between rib E
Rib F and rib F.
Pass field lead wire (black)
6 4 between rib D and rib E.
Be careful, not to pinch
Switch the lead wires connected with
switch terminal 4 and 6, with boss A.
Polyethylene tube
Wiring diagram of lower portion
Switch of switch
Noise
suppressor
Wiring diagram P7/8
Wiring diagram of wires connected with brush holders ( With choke coil)
Inflect the receptacles as illustrated in Fig. A. Lead wire (purple)
The receptacle of lower brush holder side has
Choke coil
to be so inflected, that it does not cross the line of .
(purple)
Fig. A Receptacle
Upper Brush holder
Choke coil
(orange) Boss A
Rib E
Brush holder
Lower Receptacle Rib F
Pass noise suppressor's lead wire (white)
and choke coil lead wire (orange)
6 4 between rib E and rib F.
Switch
Switch
Polyethylene tube
Be careful, not to pinch
the lead wires connected with
switch terminal 4 and 6, with boss A.
Noise suppressor's
lead wire (white)
Wiring diagram of lower portion
of switch
Switch
Noise
suppressor
Wiring diagram P8/8
Wiring diagram of wires connected with brush holders ( Without choke coil)
Inflect the receptacles as illustrated in Fig. B.
The receptacle of lower brush holder has
to be so inflected, that it does not cross the line of .
Fig. B Receptacle
Upper Brush holder
Lead wire
(purple)
Boss A
Rib E
Brush holder
Lower Receptacle Rib F
Pass noise suppressor's lead wire (white)
and lead wire (orange) between rib E
6 4
Switch and rib F.
Be careful, not to pinch Polyethylene tube
the lead wires connected with
switch terminal 4 and 6, with boss A.
Wiring diagram of lower portion
of switch
Switch
Noise
suppressor