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Makita 4112H Technical Information
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Makita 4112H Technical Information

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T
ECHNICAL INFORMATION
Models No.
Description
C
ONCEPTION AND MAIN APPLICATIONS
The above 305mm (12") angle cutters have been developed
as a successor to the existing model 4110C.
Their features and benefits are ;
* Super Joint System - SJS for suppression of shock
and prevention of damage on gear.
* 305m (12") diamond wheel which provides max.cutting
depth; 100mm (4"), can be used.
S
pecification
4112H
4112HS
Model No.
No load speed : min-1= rpm.
Diameter : mm (")
Wheel size
Arbor : mm (")
Safety clutch
Soft start feature
Net weight : kg (lbs)
Power supply cord :m ( ft )
S
tandard equipment
* Socket wrench 17 ............................................ 1 pc.
* Plastic carrying case ........................................ 1 pc.
< Note > The standard equipment for the tool shown may differ from country to country.
O
ptional accessories
* Various diamond wheels ( dry only)
* Various abrasive cut off wheels
* Ring 20
* Base set
* Elbow joint 32 assembly
* Plastic carrying case
4112H, 4112HS
305mm (12") Angle Cutter
Voltage (V)
Current (A)
120
15
110
23
120
15
220
11.5
230
11
10.5
240
4112H
Dimensions : mm ( " )
Length ( L )
Width ( W )
Height ( H )
* Width ( W ):from the base to the rear of
Continuous Rating (W)
Cycle (Hz)
Input
AC / DC
1,650
2,400
50 / 60
1,650
50 / 60
50 / 60
2,400
50 / 60
2,400
2,400
50 / 60
4112HS
5,000
305 (12)
25.4 (1)
Yes (Super Joint System)
No
Yes
10.3 (22.7)
2.5 (8.2)
W
L
648 (25-1/2)
240 (9-1/2)
273 (10-3/4)
motor housing
Max.
Output(W)
Output
800
1,500
800
1,600
1,600
1,600
PRODUCT
P 1 / 11
H
3,000
2,750
3,000
3,700
3,700
3,700

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Summary of Contents for Makita 4112H

  • Page 1 ECHNICAL INFORMATION PRODUCT P 1 / 11 Models No. 4112H, 4112HS Description 305mm (12") Angle Cutter ONCEPTION AND MAIN APPLICATIONS The above 305mm (12") angle cutters have been developed as a successor to the existing model 4110C. Their features and benefits are ;...
  • Page 2 P 2 / 11 epair < 1 > Lubrication Apply MAKITA grease SG. No.0 to the following portions designated by black triangle to protect parts and product from unusual abrasion. Spiral bevel gear 48 Fig. 1 Amount to Position Parts items...
  • Page 3 P 3 / 11 epair ( 3 ) Remove 2 pcs. of hex bolt M8x20. Then wheel cover section can be removed from the machine. See Fig. C. <Note> Be careful, not to lose plate B. Hex bolt M8x20 Plate B Hex bolt M8x20 Fig.
  • Page 4 P 4 / 11 epair < 4 > Assembling gear section ( 1 ) Mount spindle by pressing with arbor press from wheel side. See Fig. 6. ( 2 ) Mount spiral bevel gear 48 together with lock sleeve. See Fig. 7. ( 3 ) Mount flat washer 15.
  • Page 5 < 6 > Assembling clutch section ( 1 ) Apply MAKITA grease SG. No.0 to the lock spring 24. ( 2 ) First, put the lock spring 24 slantingly on the spiral bevel gear 48. And press, such as, the portion A of lock spring 24 See Fig.

  • Page 6: Dust Cover

    P 6 / 11 epair < 7 > Removing armature ( 1 ) After removing 4 pcs. of hex bolt M5x20, remove gear section from gear housing. And remove dust cover. See fig. 15. ( 2 ) Remove brush holder caps and carbon brushes, and unscrew 4 pcs. of hex bolt M5x40. Then, motor housing can be separated from gear housing.
  • Page 7 P 7 / 11 epair ( 4 ) Armature can be removed together with flat washer 15 from gear housing by striking the edge of motor housing with plastic hammer. See Fig. 18. ( 5 ) After removing retaining ring R-40 and flat washer 30, insert the armature removed in the step (4) into the ball bearing 6202DDW.
  • Page 8 P 8 / 11 epair < 8 > Mounting wheel cover and base ( 1 ) After mounting plate B to bearing box, mount wheel cover section to the machine with aligning the hole A with the bearing box. See Fig. 25. ( 2 ) Aligning the three screw holes of pressure plate with the same of baring box, mount pressure plate to the bearing box.
  • Page 9 When repairing Model 4112H or 4112HS of North American specification (for up to 120V), CB-210 has to be used for replacement of carbon brush. Using carbon brushes other than CB-210 for 4112H and 4112HS may cause the trouble, such as melting down of motor housing, etc.

  • Page 10: Circuit Diagram

    Color index of lead wires Black White Orange Purple Brush holder (Right) Brush holder (Left) Insulated terminal 1. Circuit diagram for model 4112H Brush holder Brush holder (left) (right) Power supply cord Field Switch Noise Insulated suppressor terminal 2.

  • Page 11: Wiring Diagram

    P 11 / 11 iring diagram Wiring in the motor housing (Model 4112H and 4112HS) Connecting lead wire (purple) of brush holder Hook Pass the following lead wires through the hook. * Field lead wire (black) Field lead wire * Field lead wire (orange)

This manual is also suitable for:

4112hs