Makita Maktec MT690Z Manual

Dimensions: mm (")

Width (W)

Height (H)

Length (L) 173 (6-13/16)

82 (3-1/4)

225 (8-7/8)

MT690/ MT691

Cordless Impact Driver

Models MT690/ MT691 are the first 14.4V/ 18V maktec cordless impact drivers

the cost advantage.

MT690

Model No. Type Quantity

Charger Plastic

carrying case

Battery

cover

Battery

MT690Z No No

MT690E DC1851 Yes2

L1451 1

NoNo

MT691

Model No. Type Quantity

Charger Plastic

carrying case

Battery

cover

Battery

MT691Z No No

MT691E DC1851 Yes

Phillips

bit 2-65

No*1

*1: Yes for Taiwan

Hook

No*12L1851 1

NoNo

PRODUCT

P 1/ 8

Model No.

Description

CONCEPT AND MAIN APPLICATIONS

The image above is MT691.

Battery

Charging time: min.

Max. fastening torque*1: N.m [ kgf.cm] (in.lbs)

Capacity: Ah

Cell

Voltage: V 18

130 [1,330] (1,150) 135 [1,380] (1,200)

No load speed: min.ˉ¹=rpm 0 - 2,400

Max output: W 230

Impacts per minute: min.ˉ¹=ipm

Driving shank

Weight according to

EPTA-Procedure 01/2003*2: kg (lbs) 1.5 (3.2)1.4 (3.1)

Energy capacity: Wh 20

14.4

LED Job light

*1:Torque at 3 seconds after seating, when fastening M14 high tensile bolt

*2:MT690/with battery L1451, MT691/with battery L1851

Specification

Note: The standard equipment for the tools may vary by country.

See the model variation list above.

Charger DC1851

Li-ion battery L1451 (for MT690 only)

Li-ion battery L1851 (for MT691 only)

Standard equipment

Optional accessories

MT690 MT691

Capacities

Machine screw

Standard bolt

High tensile bolt

Coarse thread (length)

Electric brake

Torque adjustment

Reversing function

Variable speed control

1.1

Li-ion

60 with DC1851

0 - 3,000

6.35mm (1/4") Hex

22mm - 125mm (7/8" - 4-7/8")

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

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

M5 - M12 (3/16" - 1/2")

Yes

Specification Model

TECHNICAL INFORMATION

These products are available in the following variations.

P 2/8

Repair

[1] NECESSARY REPAIRING TOOLS

CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”.

Code No. Description Use for

1R045 Gear extractor (large) disassembling/ assembling Hammer section

1R232 Pipe 30 holding Anvil when disassembling Bit holder section

1R288 Screwdriver magnetizer magnetizing a screwdriver for easy removal of steel balls

1R291 Retaining ring S and R pliers removing Ring spring 11 of Bit holder section

[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.

Fig. 1

Item No. Description

Hammer case

Anvil

Spindle Hole portion into which DC motor’s pinion gear is inserted

Steel ball 3.5 (24 pcs.) Surface that contacts 24 pcs. of Steel ball 3.5

Whole portion

Steel ball 5.6 (2 pcs.)

Hammer

Flat washer 24

DC Motor

Spur gear 22

Internal gear 51

Internal gear case

Amount

a little

approx. 2 g

Portion to lubricate

bHole portion into which 24 Spindle is inserted

Drum portion that contacts Sleeve 14 and Oil seal 14 of Hammer case

P 3/8

Repair

[3] DISASSEMBLY/ASSEMBLY

[3] -1. DC Motor

(1) Disassemble DC motor as drawn in Fig. 2.

DISASSEMBLING

(1) Assemble DC motor and Internal gear case as drawn in Fig. 3.

ASSEMBLING

1. Remove Hammer case and

Hammer section from Housing

set by unscrewing four 4x25

Tapping screws.

2. Remove Housing R from Housing L

by unscrewing eight 3x16 Tapping

screws.

3. Remove DC motor together

with Internal gear case from

Housing L.

Fig. 2

Hammer case (and

Hammer section in

its inside)

Housing set

4x25 Tapping

screws (4 pcs.)

3x16

Tapping

screws

(8 pcs.)

Housing R DC motor

Internal

gear case

Housing L

4. Internal gear case is now

removed from DC motor.

Fig. 3

1. While aligning the center of Internal gear case’s

projection to the center of DC motor’s notch,

assemble Internal gear case to DC motor.

2. While fitting Internal gear case’s projection to

the groove on Housing L, assemble DC motor

to Housing L.

Projection

Internal gear case

Internal gear case’s

projection

Notch

Notch Projection

Groove on Housing L

DC motor

(2) Before mounting Housing R to Housing L, assemble F/R change lever to Switch as drawn in Fig. 4.

Fig. 4

F/R Change lever

1.Assemble the hook of F/R change lever to

the projection of Switch when assembling

hem together.

2. Mount Switch with F/R Change lever to Housing L.

And fasten Housing R with eight 3x16 Tapping screws.

Switch

Hook

Projection

Housing L

P 4/8

Repair

[3] DISASSEMBLY/ASSEMBLY

[3] -2. Anvil, Bit Holder Section

DISASSEMBLING

Steel ball 3.5 (2psc.)

Compression

spring 13

Raise this side (opposite to the expanded side) with index finger

when removing Ring spring 11.

Ring spring 11

Expand the end gap of

Ring spring 11 with 1R291.

Sleeve

1R291

Flat washer 12

Sleeve

Anvil

1R232

Flat washer 12, Compression spring 13 and

Sleeve can now be removed from Anvil.

Anvil and Nylon washer 14 can now be removed from

Hammer case complete.

Note: Be careful not to lose Steel balls 3.5.

Fig. 5

Fig. 6

Anvil

Nylon washer 19

Hammer case complete

Anvil

Ring spring 11

(1) Remove Hammer case and Hammer section from Housing set as per the left drawing in Fig. 2.

(2) Disassemble Bit holder section and Anvil as drawn in Figs. 5 and 6.

Use 1R232 to hold Anvil firmly.

Press the top of Sleeve with

thumb to prevent Compression

spring 13 from popping out

and away.

Assemble Anvil and Bit holder section by reversing the disassembly procedure. (Figs. 6 and 5)

ASSEMBLING

P 5/8

Repair

[3] DISASSEMBLY/ASSEMBLY

[3] -3. Hammer Section

DISASSEMBLING

Fig. 7

(1) Remove Hammer case and Hammer section from Housing set as per the left drawing in Fig. 2.

(2) Disassemble Hammer section as drawn in Figs. 7, 8, 9 and 10.

Pull Hammer downwards using 1R045 to align

the opening for Steel ball insertion with the top

of the cam grooving on Spindle, then remove

Steel ball 5.6 from Spindle.

Hammer

1R045

Spindle

Top of the

cam groove

on Spindle

Opening for

Steel ball

insertion

Steel ball 5.6

(2 pcs.)

Hold Hammer section as shown below in Fig. R,

and then release it from 1R045.

Caution:

Do not hold 1R045 as shown below in Fig. F

when releasing Hammer section from 1R045.

Failure to follow this instruction could cause

Steel balls to fall out of Hammer.

Fig. 8

Fig. R Fig. F

Flat washer 12

Pin 5

Spindle

Spur Gear 22

Hammer

Flat washer 24

Compression

spring 25

Cup

washer 14

Steel ball 3.5

(24 pcs.)

Spindle section

Hammer section can now be disassembled as shown below. After removing Flat washer 24,

Steel balls 3.5 can be removed

from Hammer.

Fig. 9 Fig. 10

Hammer

P 6/ 8

Repair

Assemble Hammer section by reversing the disassembly procedure. Refer to Figs. 11, 10, 9and 8.

Before putting Flat washer 24 in Hammer (Refer to Fig. 10), make sure that twenty-four Steel balls 3.5

are put in the groove of Hammer as shown in Fig. 11.

Steel ball 3.5

(24 pcs.)

ASSEMBLING

Hammer

Fig. 11

[3] DISASSEMBLY/ASSEMBLY

[3] -3. Hammer Section (cont.)

Hammer and Steel balls 3.5

viewed from above

There will appear a space equivalent to

one Steel ball 3.5 in the groove of Hammer

when twenty-four Steel balls 3.5 are put

in place.

P 7/ 8

Fig. D-1

Circuit diagram

Color index of lead wires' sheath

Black Yellow

Red

Switch

Terminal

Line filter

Line filter is not used for

some countries.

DC motor

Red dot mark

LED job light

P 8/ 8

Wiring diagram

Wiring to Terminal

Wiring in Housing L

Fig. D-2 Fig. D-3

Fig. D-4

Wiring to DC motor

Wire onnecting

portion

Connect Lead wire (red) receptacle to the

terminal with Red dot mark and Lead wire

(black) receptacle to the other terminal.

Red dot mark

The Flag connector has to be connected

so that its wire connecting portion is located

over (+), (-) pole marks.

Wire connecting portion

Flag connector

LED job light

LED job light’s Lead wires have to

be tightened between Lead wire

holders.

DC motor

Switch

Terminal

Rib

Pass Lead wires (red, black) between Rib

and Inner wall of Housing L.

Line filter

Pass Lead wires (red, black)

of Switch through Line filter.

And then put Line filter here.

(Line filter is not used for

some countries.)

Put the slack of Lead wires of Switch

and LED job light in this place.

Put Lead wire (yellow) into this groove and

connect it to AS connector of Terminal.

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