Parts List

ManualsBrandsMakita ManualsCordless Grinders (angle grinders)Battery grinder

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 users to obtain high speed rotation on light duty application/ high torque on

heavy duty application.

Models No.

Description

PRODUCT

ECHNICAL INFORMATION

CONCEPT AND MAIN APPLICATIONS

Specification

Standard equipment

Optional accessories

P 1/ 14

Dimensions: mm (")

DGA404

All

Width (W)

DGA454

Length (L)*1

362 (14-1/4)

117 (4-5/8)

130 (5-1/8)

DGA504

DGA404

Height (H)

140 (5-1/2)

DGA454,

DGA504

145 (5-3/4)

Note: The standard equipment may vary by country or model variation.

DGA404, DGA454, DGA504

18V Cordless Angle Grinders

Specification

Model

DGA404

Weight according to

EPTA-Procedure 01/2003: kg(lbs)*2

2.5 (5.5) 2.5 (5.6)2.4 (5.3)

Battery

1.5, 2.0, 3.0, 4.0, 5.0Capacity: Ah

Voltage: V

Li-ionCell

Energy capacity: W 27, 36, 54, 72, 90

Charging time (approx.): min. 15, 18, 22, 36, 45 with DC18RC

Wheel size: mm (") Hole diameter

6 (1/4)Max. thickness

Diameter

100 (4)

16 (5/8) 22.23 (7/8)

8,500

Yes

No load speed: min.ֿ ¹= rpm

Slide

Switch type

Electronic

control

Overload warning lamp

Electronic current limiter

Soft start

Anti-restart function

Battery fuel gauge

Soft grip

*2 With 3.0Ah battery

*1 With BL1830/ BL1840/ BL1850

Note: BL1815 is not compatible.

DGA504 DGA454

115 (4-1/2) 125 (5)

Lock nut wrench ............................................ 1

Side grip ......................................................... 1

Depressed center grinding wheel ................... 1 (100mm for DGA404, 115mm for DGA454, 125mm for DGA504)

Battery cover .................................................. 1 (except -Z- model)

Plastic carrying case ....................................... 1 (except -Z- model)

Charger DC18RC ........................................... 1 (except -Z- model)

Li-ion battery BL1830 or BL1840 ................. 2 (except -Z- model)

Depressed center wheels

Rubber pads

Abrasive discs

Wire brushes

Diamond wheels

Abrasive cut off wheels

Toolless wheel covers

Sanding lock nuts

Fast charger DC18RC

Fast charger DC18SD

Charger DC24SC

Automotive charger DC18SE

Four port multi charger DC18SF

Li-ion battery BL1815N

Li-ion battery BL1820

Li-ion battery BL1830

Li-ion battery BL1840

Li-ion battery BL1850

OFFICIAL USE

for ASC & Sales Shop

Summary of content (14 pages)

PAGE 1
OFFICIAL USE for ASC & Sales Shop T ECHNICAL INFORMATION Models No. DGA404, DGA454, DGA504 Description 18V Cordless Angle Grinders PRODUCT P 1/ 14 L CONCEPT AND MAIN APPLICATIONS H 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.
PAGE 2
P 2/ 14 Repair CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”. [1] NECESSARY REPAIRING TOOLS Code No. Description 1R004 Retaining ring pliers ST-2 Use for removing/ assembling Ring spring 11 1R027 1R029 1R034 1R045 1R258 1R268 Bearing setting pipe ø18-ø10.2 Bearing setting pipe ø23-ø15.2 Bearing setting plate ø12.
PAGE 3
P 3/ 14 Repair [3] DISASSEMBLY/ASSEMBLY [3]-1. Rotor, Ball bearing 629LLB/ 607LLB, Spiral bevel gear 10 DISASSEMBLING (1) Remove Gear housing cover with Rotor section from Motor housing. (Figs. 2, 3 and 4) (2) Disassemble Rotor section. (Fig. 5) Fig. 2 Fig. 3 Remove the assembled part of Gear housing and Bearing box from Gear housing cover. Gear housing Remove four 4x30 Tapping screws. Gear housing 4x30 Tapping screw (4 pcs.) Bearing box Gear housing cover Bearing box 4x30 Tapping screw (4 pcs.) Fig.
PAGE 4
P 4/ 14 Repair [3] DISASSEMBLY/ASSEMBLY [3]-1. Rotor, Ball bearing 629LLB/ 607LLB, Spiral bevel gear 10 (cont.) DISASSEMBLING (3) Disassemlble Gear housing cover and Rotor section. (Figs. 6 and 7) Fig. 6 Hook the jaws of 1R045 with Gear housing cover, then push out Rotor. 1R045 Press down Ball bearing 629LLB with 1R286. Ball bearing 629LLB Arbor press Gear housing cover 1R286 Gear housing cover Rotor Fig. 7 Remove Ball bearing 607LLB* from Rotor with 1R269.
PAGE 5
P 5/ 14 Repair [3] DISASSEMBLY/ASSEMBLY [3]-1. Rotor, Ball bearing 629LLB/ 607LLB, Spiral bevel gear 10 (cont.) ASSEMBLING Assemble by reversing the disassembly procedure. Note: Be careful about the points shown in Figs. 10, 11 and 12. Fig. 10 Gear housing cover Receive the inner race of Ball bearing 629LLB in Gear housing cover with 1R027, and pressfit the shaft of Rotor into the hole of Ball bearing 629LLB. Hole of Ball bearing 629LLB O ring 26 with Grrease SG No.
PAGE 6
P 6/ 14 Repair [3] DISASSEMBLY/ASSEMBLY [3]-2. Spiral bevel gear 37, Ball bearing 696ZZ and Ball bearing 6201DDW DISASSEMBLING Note: The subject parts can be removed without disassembling Motor section. Disassemble Bearing box section as drawn in Fig. 13 to Fig. 19. Fig. 13 Fig. 14 Gear housing Remove four M4x14 Pan head screws and Bearing box from Gear housing. Ball bearing 696ZZ Remove Ball bearing 696ZZ with 1R269.
PAGE 7
P 7/ 14 Repair [3] DISASSEMBLY/ASSEMBLY [3]-2. Spiral bevel gear 37, Ball bearing 696ZZ and Ball bearing 6201DDW (cont.) ASSEMBLING Assemble by reversing the disassembly procedure. Note: When Spindle is pressfit into Spiral bevel gear 37: 1. insert the thread of Spindle into the hole of 1R034 to receive the stepped portion of Spindle on 1R034. 2. put 1R029 on the area around the center hole of Spiral bevel gear 37 and then press it down. See Fig. 20. Fig.
PAGE 8
P 8/ 14 Repair [3] DISASSEMBLY/ASSEMBLY [3]-4. Assembling of Stator complete Refer to Figs. 23 and 24. Fig. 23 Fit four projections on Housing set into four the mating cavity in Stator complete. Mating cavity on the left side and the right side (Two each) Stator complete Projection in Housing on the left side and the right side (Two each) Fig. 24 Be sure to align the center line of Bearing room with the terminal of Stator complete.
PAGE 9
P 9/ 14 Repair [3] DISASSEMBLY/ASSEMBLY [3]-5. Assembling of Switch knob and Switch lever Refer to the following and next pages. (Figs. 25, 26, 27, and 28) Fig. 25 Fig. 26 Set Torsion spring 2 in place of Lever, and then pass Pin 2 through the holes of Lever. Insert the hook of Switch knob into the square hole of Switch lever Switch lever The ends of Torsion spring 2 must be placed on these positions. Switch knob Torsion spring 2 Pin 2 Lever Fig.
PAGE 10
P 10/ 14 Repair [3] DISASSEMBLY/ASSEMBLY [3]-5. Assembling of Switch knob and Switch lever (cont.) Fig. 28 Insert one end of Pin 2 into the hole of Housing L. and put the one end of Torsion spring 2 on the rib of Housing L. (See below for the detail.) The other end of Pin 2 should be inserted into the hole of Housing R. Place the top projection on the reverse side of Switch knob into the groove of Housing L. (See below for the detail.
PAGE 11
P 11/ 14 Circuit diagram Fig. D-1 Flag terminal with lock (#187, t=0.8mm) Battery terminal Flag terminal with lock (#250, t=0.
PAGE 12
P 12/ 14 Wiring diagram Fig. D-2 Connect Lead wire (white) and Lead wire (orange) to Switch with Insulated terminal. Be careful about the directions of the insulated terminals. Lead wire (white) between Terminal 1 and Terminal 2 Place Resistor unit and Connector 2-SD in the area circled by a blue broken line. Connector 2-SD must not be placed on/ under Noise suppressor (if used). Controller Do not put any Lead wires on this boss.
PAGE 13
P 13/ 14 Trouble shooting Whenever you find any trouble in your machine, first, refer to this list to check the machine for solution. Fig. D-3 Note in Repairing (1) Use the full charged battery which has the star mark. (Fig. D-3) (2) Check the functions by repeating 10 times. (3) When Housing is disassembled, check the following conditions: mechanical trouble (lock or wrong setting etc.
PAGE 14
P 14/ 14 Trouble shooting Test for recognizing the trouble on Stator complete (1) Set Digital tester (1R402) in the diode mode ( mark on the tester: Refer to Fig. D-5.) (2) Remove Battery, and then turn on Switch. (Fig. D-6) (3) Attach Black tester bar to Plus terminal of Battery terminal. Attach Red tester bar to Minus terminal of Battery terminal. (Fig. D-7.) Note: Be careful not to revere them. The reverse attachment could spoil the test. (4) Wait until the Tester shows the value without fluctuation.