Makita 6936FD Manual

Models No.

Description

PRODUCT

CONCEPT AND MAIN APPLICATIONS

Specification

Standard equipment

Optional accessories

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

P 1 / 8

Dimensions: mm ( " )

Width ( W )

Height ( H )

Length ( L ) 163 (6-3/8)

6936FD

Cordless Impact Driver

243 (9-9/16)

94 (3-11/16)

Model 6936FD has been developed as an 18V version tool of the

current 14.4V Model 6935FD.

Uses 18V cluster type batteries as power source, and features the following

same benefits as Model 6935FD.

With built-in LED job light

Hammer case of new design without screw hole protrusions

for increased maneuverability

Phosphorescent (glow-in-the-dark) bumper

Max. fastening torque: 140 N.m

Battery cover ......................... 2 pcs

Plastic carrying case ............. 1 pc

Hook ..................................... 1 pc

Assorted socket bits

Assorted Phillips bits

Stopper for impact driver

Battery 1822 (2.0Ah/ Ni-Cd)

Battery 1834 (2.6Ah/ Ni-MH)

Battery 1835 (3.0Ah/ Ni-MH)

Battery PA18 (1.3Ah/ Ni-Cd)

Charger DC1804

Automotive charger DC1822

This new product will be available in the following variations.

6936FDWAE 1822 (2.0Ah/ Ni-Cd)

6936FDWDE* 1834 (2.6Ah/ Ni-MH)

6936FDWFE 1835 (3.0Ah/ Ni-MH)

DC1804

6936FDZ No No

Model No. type quantity Charger

Yes

Plastic

carrying case

Battery

*Offered as Model 6936FD to USA, Canada, Mexico, and Panama

Battery

No load speed: min.-1=rpm

Impacts per min.: min.-1=bpm

Max. fastening torque: N.m (kgf.cm/in.lbs)

Capacities

Electric brake

Reversing switch

Net weight*: kg (lbs)

Variable speed (electric)

Capacity: Ah

Cell

Voltage: V 18

0 - 2,600

0 - 3,200

140 (1,430/ 1,240)

Standard bolt

High tensile bolt

Machine screw

Driving shank

M5 - M14 (3/16 - 9/16")

M5 - M12 (3/16 - 15/32")

Coarse thread screw 22 - 125mm (7/8 - 4-7/8")

M4 - M8 (5/32 - 5/16")

Yes

1.9 (4.2)

2.0/ 2.6/ 3.0

Ni-Cd/ Ni-MH

250

6.35mm (1/4") Hex

Max output: W

*Net weight includes battery.

TECHNICAL INFORMATION

P 2 / 8

Repair

[2] LUBRICATION

Apply Makita grease N. No.2 to the following portions designated with the black triangle to protect

parts and product from unusual abrasion.

[1] NECESSARY REPAIRING TOOLS

CAUTION: Remove the battery from the machine for safety before repair/ maintenance !

Fig. 1

Hammer case comp. Steel ball 3.5

19 Anvil M

20 Hammer Groove for twenty four 3.5 Steel balls

25 Steel ball 5.6 (2pcs) Whole surface

26 Spur gear 22 (2pcs) Teeth portion

Teeth portion

27 Spindle Insertion hole for Armature (Put 2g in the hole.)

28 Pin 5 (2pcs) Surface that that contacts Spur Gear 22

(This pin is the gear shaft for .)

34 Internal gear 51

Surface that contacts Hammer case complete

Insertion hole for Spindle

Flat washer 24 Cup washer 14

Armature

Compression

spring 25

Code No. Description Use for

1R045 Gear extractor Disassembling the Hammer mechanism

1R288 Screwdriver magnetizer Removing Steel balls

1R291 Retaining ring S and R pliers Disassembling the Bit holder section

1R346 Center attachment Modular use with No.1R045

134847-1 Socket 30-78 Modular use with No.1R223

1R223 Torque wrench shaft 20-90 N.m Removing Hammer case complete

1R224 Ratchet head 12.7 Modular use with No.1R223

Item No. Description Portion to lubricate

Steel ball 3.5 (24pcs)

P 3 / 8

Repair

[3] DISASSEMBLY/ASSEMBLY

[3] -2. Hammer Case Complete

Fig. 3

Fig. 4 Fig. 5

DISASSEMBLING

Note: You need not remove the Bit holder section

1) Remove PT3x10 Tapping screw, and pull LED circuit out of Housing. Remove Stopper by removing PT3x16

Tapping screw. Then remove Bumper from Hammer case complete. (Fig. 3)

2) Fix the machine in vise, and remove Hammer case complete by turning clockwise with three repair tools

as illustrated in Fig. 4.

3) The machine can now be disassembled as illustrated in Fig. 5.

[3] -1. Bit Holder Section

DISASSEMBLING

See Fig. 2.

1) Remove Ring spring 11 from the groove on Anvil M

using Retaining ring S and R pliers (No.1R291).

2) Now the following parts can be removed from Anvil M:

Flat washer 12, Compression spring 13,

Sleeve, Steel ball 3.5 (2pcs)

ASSEMBLING

Do the reverse of the disassembling steps.

Note: Before putting Sleeve through Anvil, apply grease

to Anvil as described in [2] LUBRICATION.

Torque wrench shaft 20-90N.m

(No.1R223)

Ratchet head 12.7

(No.1R224)

Socket 30-78

(No.134847-1)

Hammer case comp.

Fig. 2

Ring spring 11

Flat washer 12

Compression spring 13 Anvil

Steel ball 3.5 (2pcs)

Sleeve

groove

Tapping screw PT3x10

Tapping screw

PT3x16

LED circuit

of Switch unit

Stopper Bumper

Fit Socket 30-78

to the hex portion

of Hammer case

complete.

Hammer case comp.

Ring 41

Internal gear 51

Internal gear case

O ring 46

Assembly of Anvil

and Bit holder section

Hammer mechanism

P 4 / 8

Repair

[3] -2. Hammer Case Complete (cont.)

[3] -3. Housing L/Housing R and Motor Section

Fig. 8 Fig. 9

Fig. 7

DISASSEMBLING

1) Remove parts until Internal gear case is revealed as described in [3] -2.

2) After removing Carbon brushes, remove four M4x12 Pan head screws

that fasten Internal gear case to Housing L and Housing R. (Fig. 7)

Note: Threadlocker is applied to the M4x12 Pan head screws,

It is, therefore, recommended to use impact driver for removal.

3) Unscrew eight PT3x16 Tapping screws, then remove Internal gear case.

Housing R can now be separated from Housing L. (Fig. 8)

4) The inner electric parts can be removed from Housing L. (Fig. 9)

ASSEMBLING

Do the reverse of the disassembling steps.

Note 1: Do not forget to put O ring 46 in the groove on Internal gear case. (Fig. 5)

Note 2: When fastening Gear case complete to Internal gear case, turning Gear case complete counterclockwise

to the recommended torque of 30 - 40N.m. (Refer to Fig. 4.)

Note 3: Stopper is not reversible when fastened to Housing. Be sure to install as illustrated in Fig. 6.

Fig. 6

Stopper

Correct Wrong

Pan head screw

M4x12

Internal gear case

Brush holder

cap

Carbon brush

Housing L Housing L

Housing R

Internal gear case

Motor section

F/R Change lever

Terminal section

Switch unit

(with LED)

P 5 / 8

Repair

DISASSEMBLING

5) Remove the Motor section from Housing L. Then remove Endbell complete from Armature. (Fig. 10)

6) Put the Motor section on a work bench so that the drive end of Armature touches the work bench.

Then separate yoke unit from armature by pulling it down towards the work bench. (Fig. 11)

ASSEMBLING

Fig. 12 Fig. 13

Fig. 10 Fig. 11

Armature

Yoke unit

Endbell complete

Your fingers can be pinched

and injured.

[Wrong][Correct] [Wrong][Correct]

Notch

[3] -3. Housing L/Housing R and Motor Section (cont.)

Yoke unit

1) Assemble the Motor section.

Note 1. Yoke unit is not reversible when assembled to Armature. Be sure to assemble so that the notch in Yoke unit is

positioned on the drive-end of Armature as illustrated to left in Fig. 12. If assembled wrong, the Motor section cannot

be assembled to Housing (L).

Note 2. Because Yoke unit is a strong magnet, when assembling Armature to Yoke unit, be sure to hold the commutator

portion as illustrated to left in Fig. 13. Do not hold the Armature core as illustrated to right or your fingers will be

pinched between Yoke unit and the fan of Armature that is pulled strongly by the magnet force.

Fig. 14 Fig. 15

2) Assemble Rubber pin 4 to both Housing L and Housing R as illustrated in Fig. 14.

Note: Make sure that the Rubber pins are in place on Housing L and R before assembling the housings together.

3) Mount the Motor section on housing L with the projection on Housing L fit in the notch of Yoke unit. (Fig. 15)

notch

projection

Housing L

Rubber pin 4

Housing L

Housing R

Switch

P 6 / 8

Repair

ASSEMBLING

[3] -3. Housing L/Housing R and Motor Section (cont.)

4) Assemble F/R Change lever to switch unit with the projection

on Switch unit fit in the loop portion of F/R Change lever.

(Fig. 16)

5) Mount Switch unit and the Terminal section on Housing L.

6) Assemble Housing R to Housing L. ( Fig. 8)

7) Secure Internal gear case to Housing with four M4x12 Pan

head screws. (Fig. 7)

Note : If you reuse removed M4x12 Pan head screws, apply

threadlocker to the screws. Recommended threadlocker are

Threebond 1321B/ 1342, Loctite 242

Fig. 16

F/R Change lever

projection

loop portion

DISASSEMBLING

[3] -4. Hammer Mechanism and Spindle Section

1) Remove Hammer case complete, and take out the Hammer mechanism as described in [3] -2.

2) Press down Hammer to the full with Large gear extractor (No.1R045) by turning the handle in the direction

of the black arrow. Then adjust the notch for Steel ball insertion to the top of the cam groove on Spindle

by turning the handle in the opposite direction. (Fig. 17)

3) Remove two 5.6 Steel balls from Spindle using tweezers or a slotted screwdriver magnetized with Screwdriver

magnetizer (No.1R288). (Fig. 17)

4) Turn over the Hammer mechanism as illustrated in Fig. 18, then turn the handle in the direction of the black arrow

to release the Hammer mechanism.

Caution: Do not hold gear extractor as illustrated in Fig. 17 when releasing the Hammer mechanism.

Failure to follow this instruction could cause most of twenty-four 3.5 steel balls to fall out of Hammer.

Spindle

top of cam groove

on Spindle

opening for Steel

ball insertion

Hammer

Steel ball 5.6

Fig. 17 Fig. 18

P 7 / 8

Repair

[3] -4. Hammer Mechanism and Spindle Section (cont.)

DISASSEMBLING

Fig. 19 Fig. 20

5) Now Hammer mechanism can be disassembled as illustrated in Fig. 19.

6) After removal of Flat washer 24, twenty-four 3.5 Steel balls can be removed from Hammer. (Fig. 20)

Spur gear 22

Flat washer 12

Pin 5

Hammer

Compression

spring 25

Cup

washer 14

Steel ball 3.5

(24 pcs.)

Spindle

Flat washer 24

Spindle section

ASSEMBLING

Fig. 21

Hammer

1) Put twenty-four 3.5 Steel balls into the groove of Hammer. (Fig. 21)

Note: As illustrated to right in Fig. 21, the groove is designed to have a space equivalent to one 3.5 Steel ball

when twenty-four 3.5 Steel balls are correctly installed.

2) Then do the reverse of the disassembling steps.

Hammer

Steel ball 3.5

(24 pcs)

space equivalent to

one 3.5 Steel ball

Steel ball 3.5 (24 pcs)

P 8 / 8

Circuit diagram

Wiring diagram

Color index of lead wires' sheath

Black

Red

White

FET

(Field Effect Transistor)

Endbell

LED circuit section

of Switch

Switch

Endbell complete

Motor

Switch

1) Before Installation of Internal Electric Parts

FET

Rib

2) After Installation of Internal Electric Parts

LED circuit section

of Switch

Put the lead wires (black, red) of LED

deep in these lead wire holders.

Boss

Place the slack of LED

lead wires here.

Route the Endbell lead wire (black)

between FET and the rib.

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