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Makita DGA405 Technical Information

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T
ECHNICAL INFORMATION
Model No.
Description
C
ONCEPT AND MAIN APPLICATIONS
The subject models are cordless angle grinders powered by 18V Li-ion battery,
and equipped with highly enhanced Brushless DC motor compared to the current
models DGA402/ DGA452.
・A built-in controller changes the cutting speed automatically according to
load condition, enabling the user to obtain high speed rotation on light duty
application/ high torque on heavy duty application.
・KBD: Kick-Back Detection shuts down the tool to protect the user,
if the rotation speed suddenly slows down (e.g., kickback).
・Paddle switch type
Note: BL1815 is not compatible.
S
pecification
Specification
Voltage: V
Capacity: Ah
Cell
Energy capacity: Wh
Charging time (approx.): min. 15, 24, 22, 36, 45 with DC18RC
Diameter
Wheel size: mm (") Hole diameter
Max. thickness
No load speed: min. -ı = rpm
Switch type
Overload warning lamp
Electronic current limiter
Soft start
Anti-restart function
Battery fuel gauge
Soft grip
Weight according to
EPTA-Procedure 01/2003: kg(lbs)*
*2 With BL1830/ BL1840/ BL1850
S
tandard equipment
Lock nut wrench
Side grip
Depressed center wheel (100mm for DGA405, 115mm for DGA455, 125mm for DGA505)
Battery cover (except "Z" model)
Plastic carrying case (except "Z" model)
Fast charger DC18RC (except "Z" model)
Li-ion battery BL1830 or BL1840 (except "Z" model)
Note: The standard equipment may vary by country or model variation.
O
ptional accessories
Wheel covers
Vibration proof grip
Wire cup brush
Dust extractor attachment
Super flange
Dust collecting wheelcover
DGA405, DGA455, DGA505
18V Cordless Angle Grinders
Model DGA405
DGA455
1.5, 2.0, 3.0, 4.0, 5.0
27, 36, 54, 72, 90
100 (4)
115 (4-1/2) 125 (5)
16 (5/8)
2.4 (5.4)
2
Lock nut
Dust collect cover
Sanding lock nut
Rubber pads
Abrasive discs
Fast charger DC18RC
DGA505
18
Li-ion
22.23 (7/8)
6 (1/4)
8,500
Paddle
No
Yes
Yes
Yes
Yes
Yes
2.5 (5.6)
2.6 (5.7)
Fast charger DC18SD
Charger DC24SC
Automotive charger DC18SE
Four port multi charger DC18SF
Dust collecting wheel guards
OFFICIAL USE
for ASC & Sales Shop
PRODUCT
L
H
W
Dimensions: mm (")
Length (L)*
All
362 (14-1/4)
1
Length (L)*
All
348 (13-3/4)
2
DGA405
Width (W)
DGA455
DGA505
DGA405
Height (H)
DGA455,
DGA505
*1 With BL1830/ BL1840/ BL1850
*2 With BL1815N/ BL1820
Li-ion battery BL1815N
Li-ion battery BL1820
Li-ion battery BL1830
Li-ion battery BL1840
Li-ion battery BL1850
P 1/ 11
117 (4-5/8)
130 (5-1/8)
140 (5-1/2)
140 (5-1/2)
145 (5-3/4)

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Summary of Contents for Makita DGA405

  • Page 1 *2 With BL1830/ BL1840/ BL1850 tandard equipment Lock nut wrench Side grip Depressed center wheel (100mm for DGA405, 115mm for DGA455, 125mm for DGA505) Battery cover (except “Z” model) Plastic carrying case (except “Z” model) Fast charger DC18RC (except “Z” model) Li-ion battery BL1830 or BL1840 (except “Z”...

  • Page 2: Necessary Repairing Tools

    Retaining ring S and R pliers disassembling/assembling Retaining ring R-32 from/to Bearing box [2] LUBRICATION Apply Makita grease R No.00 to the following portions designated with the black triangle to protect parts and product from unusual abrasion. Item No. Description...
  • Page 3 P 3/ 11 epair [3] DISASSEMBLY/ASSEMBLY [3]-1. Rotor, Ball bearing 629LLB, 607LLB, Spiral bevel gear 10 DISASSEMBLING (1) Remove Rotor, Ball bearing 629LLB, 607LLB and Spiral bevel gear 10 as drawn in Fig. 2. Fig. 2 1. Remove four 4x30 Tapping screws, and then separate the assembled part of Gear housing and Bearing box from Gear housing cover.
  • Page 4 Fig. 4 1. Assemble Ball bearing 2. Assemble O ring 26 to the inner groove of Gear housing cover, and apply Makita grease 607LLB to Rotor. R No. 00 to the inner periphery of O ring 26, and then, insert Ball bearing 629LLB from the large hole side of Gear housing cover.
  • Page 5 P 5/ 11 epair [3] DISASSEMBLY/ASSEMBLY [3]-2. Spiral bevel gear 37, Ball bearing 696ZZ / 6201DDW DISASSEMBLING (1) Remove Ball bearing 696ZZ and Ring spring 11 from Spindle as drawn in Fig. 6. Fig. 6 2. Remove Ball bearing 3. While opening the gap of Ring spring 11 1.
  • Page 6 P 6/ 11 epair [3] DISASSEMBLY/ASSEMBLY [3]-2. Spiral bevel gear 37, Ball bearing 696ZZ / 6201DDW (cont.) ASSEMBLING (1) Assemble Flat washer 12 and Ball bearing 6201DDW to Bearing box. (Refer to Fig. 7 of page 5.) (2) Secure Ball bearing 6201DDW with Retaining ring R-32. (Refer to Fig. 7 of page 5.) (3) Assemble Spiral bevel gear 37 to Spindle as drawn in Fig.
  • Page 7 P 7/ 11 epair [3] DISASSEMBLY/ASSEMBLY [3]-4. Stator complete ASSEMBLING Assemble Stator complete as drawn in Fig. 13. Fig. 13 1. Fit four projections on Housing set into four 2. Be sure to align the center line of Bearing room mating cavities in Stator complete.

  • Page 8: Check List For Trouble Shooting

    P 8/ 11 epair [4] TROUBLE SHOOTING Whenever you find any trouble in your machine, first, refer to this list to check the machine for solution. Note Fig. T-1 (1) Use the full charged battery which has the star mark. (Fig. T-1) (2) When Housing is disassembled, check the conditions of the electrical parts Star mark (Connectors, Lead wires, Switches, etc.), Armature, Stator complete, Gear section, etc.
  • Page 9 P 9/ 11 epair [4] TROUBLE SHOOTING (cont.) Test for recognizing the short-circuit of FET* on controller *FET: Field effect transistor Remove Battery, and then do as shown in Fig. T-3. Fig. T-3 1. Set Digital tester (1R402) in the diode mode ( mark).

  • Page 10: Circuit Diagram

    P 10/ 11 ircuit diagram Fig. D-1 Color index of lead wires' sheath Black Non-insulated terminal (to insert the plate end into Switch terminal No.3 Blue and fasten the plate with the M3.5 screw of Switch) Green Orange White AWG22 Yellow White lead wire is used for some countries.

  • Page 11: Wiring Diagram

    P 11/ 11 iring diagram Fig. D-2 Wiring of Controller to Stator complete Fix Lead wires in these Lead wire holders one by one. Bend thick lead wires (orange, white, blue) of Controller here so as not to pinched between mating portions of Housing L and R.

This manual is also suitable for:

Dga455Dga505