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Model No.

 Description

PRODUCT

C

ONCEPT AND MAIN APPLICATIONS

P  1/16

S

pecification

S

tandard equipment

6842, 6843, 6844

Auto Feed Screwdriver

Models 6842, 6843 and 6844 have been developed
as the successor models of 6833 series models.
These models feature more reliable casing attachment
with the following benefits:
    Rigid aluminum casing
    Stopper base with anti-tilt device for preventing screws from swaying
    Rubber cap securely fixed to stopper base
    Dust-proof construction for smooth sliding action

6842 series also includes Auto feed screwdriver with coil magazine
available as Model 6845.

Dimensions: mm (")

Width (W)

Height (H)

Length (L) 400 (15-3/4) 440 (17-1/4)

6842/ 6843

6844

75 (2-15/16)

243 (9-9/16)

L

H

O

ptional accessories

W

Specification

Net weight: kg (lbs)

2.0 (4.4)

2.1 (4.6)

Model

6843

6844

Power supply cord: m (ft)

Europe: 4.0 (13.1), Other countries: 2.5 (8.2)

6842

6842/ 6843/ 6844

6842/ 6843

Continuous Rating (W)

Voltage (V)

Cycle (Hz)

Input

Output

Max. Output (W)

110
120

220
230
240

4.5
4.3

2.3
2.2
2.1

50/60
50/60

50/60
50/60
50/60

470

---

470
470
470

190
190

190
190
190

400
400

400
400
400

Current (A)

Note: The standard equipment for the tool shown above may differ by country.

Phillips bit 2-162 or 2-157 (for 6842/ 6843)
Square bit 2-162 or 2-157 (for 6842/ 6843)
Phillips bit 2-182 or 2-177 (for 6844)
Square bit 2-182 or 2-177 (for 6844)

Extension handle
Casing attachment
Plastic carrying case

Phillips bit 2-162 or 2-157 ....................... 3
Belt clip ................................................... 1
Thumb screw (for fixing Belt clip) .......... 1
Plastic carrying case ................................ 1 

6844
Phillips bit 2-182 or 2-177 ....................... 3
Belt clip ................................................... 1
Thumb screw (for fixing Belt clip) .......... 1
Plastic carrying case ................................ 1 

4 (5/32)

25 to 55

(1 to 2-3/16)

45 to 75

(1-3/4 to 2-15/16)

Diameter

Overall length

6,000

3,000

4,700

No load speed: min.

-1 

= rpm

Driver bit: mm (")

Capacities: mm (")
[collated drywall screw]

Reverse switch

Protection against electric shock

6.35 (1/4) Hex

162 (6-3/8) or 157 (6-3/16)

182 (7-1/8) or 177 (7)

Shank

Overall length*

Yes

Double insulation

*Overall length of driver bit may differ by country.

6842/ 6843

6844

T

ECHNICAL INFORMATION

Summary of Contents for 6842

Page 1: ...W Voltage V Cycle Hz Input Output Max Output W 110 120 220 230 240 4 5 4 3 2 3 2 2 2 1 50 60 50 60 50 60 50 60 50 60 470 470 470 470 190 190 190 190 190 400 400 400 400 400 Current A Note The standar...

Page 2: ...bricate Apply approx 1g Plane bearing 14 Steel ball 3 5 Whole surface Each depressed portion for Steel ball 4 Steel ball 4 3 pcs Spindle B Clutch cam C 49 50 52 a Drum portion that contacts Plane bear...

Page 3: ...terclockwise M4x12 Countersunk head screw 3 pcs one on M4x28 Thumb screw side two on the opposite side No 1 Phillips screwdriver M3x5 Shoulder flat head screw Fig 6 Fig 5 Compression spring 23 Clamper...

Page 4: ...box fully until it stops 9 While pressing down two Levers at the same time separate Feeder box from Stopper base 10 Remove Lever and Compression Spring 2 2 pcs each from Feeder box Fig 8 1R291 Feeder...

Page 5: ...pping screw Feeder box Side view of Feeder box after removing Box cover complete Dust cover Ratchet arm complete Compression spring 6 Torsion spring 4 Stopper Pin 3 Fig 14 12 Remove Ratchet arm comple...

Page 6: ...move Sleeve 5 from Feeder box If cannot remove by hand lever it off using Phillips screwdriver or the like as illustrated below 16 Remove Spur gear 16 from Feeder box Fig 15 Fig 16 15 Remove Shoulder...

Page 7: ...from Box cover complete side Top view Box cover complete side Feeder box side Wheel Spur gear 16 Fig 18 Push the metal plate of Dust cover in the three portions designated by gray star especially be s...

Page 8: ...y pushing in Shoulder pin 6 Fig 23 Note Do not apply any lubricant oil grease or anticorrosive oil to the parts illustrated in Fig 24 because smooth feeding can be prevented by dirt and dust sticking...

Page 9: ...hen Dial 42 is assembled to Shifter pin Important Click stop of Dial 42 does not work without Steel ball 3 5 Therefore before assembling Dial 42 to Shifter pin make sure that Steel ball 3 5 is mounted...

Page 10: ...be disassembled as illustrated below using 1R032 1R266 and arbor press The parts with asterisk one each on left and right side 4 Cap can be removed from Stopper base using slotted screwdriver Pin 2 G...

Page 11: ...Remove Clutch section from Housing L Assembly of Helical gear small can be also removed in this step From the removed Clutch section Ball bearing 608 and Assembly of Helical gear large will be separa...

Page 12: ...h cam C Fig 39 Fig 40 Steel ball 4 3 pcs Steel ball 3 5 Clutch cam C Helical gear large Sleeve 20 O Ring 18 Dust cover Plane bearing 14 3 Apply Makita grease FA No 2 to the inside wall of Clutch cam C...

Page 13: ...bevel gear 15 O ring 24 1R269 3 5 Switch Put the projection on Switch between the prongs of F R change lever then assemble the Switch to Housing L Fig 44 Fig 44 F R Change Lever Switch projection pro...

Page 14: ...untries use two wire Noise suppressor For some countries blue wire is used instead of white For some countries brown wire is used instead of black Switch Housing L side Housing R side Lock button A B...

Page 15: ...d from Field side See Fig D 4 protrusion for Strain relief See Figs D 2 D 3 Fix the following Lead wires with Lead wire holders and the groove Field lead wire white Field lead wire black Lead wire to...

Page 16: ...inal and Lead wire holder Lead wire to Brush holder orange Field lead wire red Route the following Lead wires between this screw boss and the inside wall of Housing L Lead wire to Brush holder purple...

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