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T ECHNICAL INFORMATION
Models No. 6935FD
L
PRODUCT
P1/ 9
Description Cordless impact driver
CONCEPT AND MAIN APPLICATIONS
The above product has been launched in the market,
having the following features.
* With built-in LED job light H
* Newly designed hammer case from which the projections for
screw holes has been removed for increased maneuverability.
* Phosphorescent (glow-in-the dark) bumper
* Max. fastening torque : 140 N.m
W
The variations of this model are as listed below.
Model No. Battery Q'ty Charger Dimensions : mm ( " )
6935FDWAE Battery 1422 Ni-Cd 2.0 Ah 2 Length ( L ) 163 (6-3/8)
6935FDWDE Battery 1434 Ni-MH 2.6 Ah 2 DC1414 Width ( W ) 94 (3-11/16)
6935FDWFE Battery 1435 Ni-MH 3.0 Ah 2 Height ( H ) 239 (9-3/8)
These 3 models come with battery cover and plastic carrying case together
with the above charger and battery.
Specification
Voltage (V) 14.4
No load speed (min-1=rpm) 0 - 2,600
Impact per minute (min-1=bpm) 0 - 3,200
Driving shank : mm ( " ) 6.35 (1/4) Hex
Machine screw M4 - M8 (5/32" - 5/16")
Standard bolt M5 - M14 (3/16" - 9/16")
Capacities High Tensile bolt M5 - M12 (3/16" - 15/32")
Coarse thread 22 - 125mm (7/8" - 5") in length
Max. fastening torque : N.m (Kgf.cm)[in.lbs] 140 (1,430) [1,240]
Electric brakes Yes
Variable switch Yes
Reverse switch Yes
Net weight: kg (lbs) 1.7 (3.8)
Standard equipment
* Battery cover ......................... 2 pcs.
* Plastic carrying case ............. 1 pc.
< Note > The standard equipment for the tool shown may differ from country to country.
Optional accessories
* Various socket bits * Battery 1420 Ni-Cd 1.3Ah * Charger DC1414
* Various drill chuck set * Battery 1422 Ni-Cd 2.0Ah * Charger DC1439
* Bit piece * Battery 1434 Ni-MH 2.6Ah * Charger DC1804
* Stopper for impact driver * Battery 1435 Ni-MH 3.0Ah * Automotive charger DC1422
P2/9
Features and benefits
Compact Design with an Overall
Length of 163mm (6-3/8")
Hammer Case of New Design
Elimination of screw hole protrusions Powerful and Compact
reduces possibility of scratches on D28 Type DC Motor
materials in operation, increasing
*Rare earth magnet provides
maneuverability to a great extent.
strong power.
*Motor life is extended by efficient
Eliminatied cooling, replaceable armature, and
externally accessible carbon brush.
Rubberized Soft Grip
LED Job light
Is ergonomically contoured to fit
For illuminated operation your palm perfectly for much more
comfortable and controlled operation.
Phosphorescent
(glow-in-the dark) bumper Hand strap can be attached.
Enables you to easily find this tool
in dark locations.
14.4 V Cluster Type Battery
Easy-to-Operate Large Trigger Switch
for Variable Speed Control
Comparison of products
Model No. Makita A
Specifications 6935FD 6932FD BTD150 A
Voltage : V 14.4 14.4 14.4 14.4
Battery
Current capacity : Ah 2.6 2.6 2.0 1.7
Battery cell Ni-MH Ni-MH Ni-MH Ni-Cd
Charging time : min. approx. 60 approx. 60 approx. 30 approx. 45
Max. 140 125 130 132
fastening torque : N.m [ in.lbs] [1,240] [1,110] [1,150] [1,150]
No load speed (min-1=rpm) 0 - 2,600 0 - 2,300 0 - 2,300 0 - 2,400
Impact per minute (min-1=bpm) 0 - 3,200 0 - 3,000 0 - 3,000 0 - 3,000
Material of hammer case Aluminum Magnesium Aluminum Magnesium
LED job light Yes Yes No No
Externally accessible brush Yes Yes Yes No
Soft grip Yes Yes Yes Yes
163 165 190 167
Length : mm [ " ]
[6-3/8] [6-1/2] [7-1/2] [6-9/16]
Dimensions
94 94 78 82
Width : mm [ " ] [3-11/16] [3-11/16] [3-1/16] [3-1/4]
239 238 253 235
Height : mm [ " ]
[9-3/8] [9-3/8] [10] [9-1/4]
Net weight : Kg [lbs] 1.7 1.7 1.8 1.8
[ 3.7 ] [ 3.7 ] [ 4.0 ] [ 4.0 ]
P3/ 9
Comparison of products
Numbers in the charts below are relative values when the results for the Model A of the competitor A
has been indexed at 100.
< Note > The working speed and amount may differ, depending on the condition of wooden materials.
Comparison in fastening work
Driving single speed Fastening amount
Testing condition with one fully charged battery
* Material: Spruce * Fastener : Coarse thread 41mm
Slow Fast Few Many
MAKITA 6935FD (2.6Ah) 110 0.6 sec. 190 800 pcs.
MAKITA 6932FD (2.6Ah) 110 190
A A (1.7Ah) 100 100
MAKITA 6337D (2.6Ah)
85 200
(high speed mode)
0 20 40 60 80 100 120 0 50 100 150 200 250 300
Testing condition
* Material: Spruce * Fastener : Coarse thread 90mm
Slow Fast Few Many
MAKITA 6935FD (2.6Ah) 110 3.5 sec. 200 130 pcs.
MAKITA 6932FD (2.6Ah) 100 170
A A (1.7Ah) 100 100
0 20 40 60 80 100 120 0 50 100 150 200 250 300
Testing condition
* Material: Spruce * Fastener : Lag bolt 1/4"
Slow Fast Few Many
MAKITA 6935FD (2.6Ah) 110
105 4.2 sec. 200 95 pcs.
MAKITA 6932FD (2.6Ah) 100 190
A A (1.7Ah) 100 100
MAKITA 6337D (2.6Ah)
95 240
(low speed mode)
0 20 40 60 80 100 120 0 50 100 150 200 250 300
Comparison in drilling
Testing condition Drilling single speed Drilling amount
* Material: Spruce * Bit : Auger bit 1" with one fully charged battery
Slow Fast Few Many
MAKITA 6935FD (2.6Ah) 105 6.0 sec. 210 70 pcs.
MAKITA 6932FD (2.6Ah) 95 185
A A (1.7Ah) 100 100
MAKITA 6337D (2.6Ah) 110 320
(low speed mode)
0 20 40 60 80 100 120 0 50 100 150 200 250 300
P4/ 9
Repair
1) Disassembling
1) -1. Disassembling Sleeve Section (Fig. 1)
(1) Remove ring spring from the groove on anvil.
(2) Now flat washer, compression spring 13, sleeve and 2 pcs of steel ball 3.5 can be removed from anvil.
(3) Anvil can be removed from hammer case.
Fig. 1
Compression spring 13
Ring spring Sleeve Groove Steel ball 3.5 x 2 pcs.
Anvil
Flat washer Apply Makita grease N.No.2 to the
cylindrical portion of anvil before mounting.
1) -2. Removing Hammer Case Complete
(1) Pull LED circuit section out of housing by removing PT3 x 10 tapping screw. ( Fig. 2)
(2) Remove stopper by removing PT3 x 16 tapping screw. (Fig. 2)
Fig. 2
Stopper
Tapping screw
LED circuit PT3 x 16
section
Tapping screw
PT3 x 10
(3) Remove bumper from hammer case. (Fig.3) Fig. 3
(4) Fit socket 30-78 (Part No.134847-1) over the hex
portion of hammer case.
And then remove hammer case from housing by
turning the socket clockwise as illustrated in Fig. 4.
Bumper
Fig. 4
Hammer case
Socket 30-78
(134847-1)
Hex portion
of hammer case
P5/9
Repair
1) -3. Disassembling Housing
(1) After removing brush holder caps and carbon brushes, remove hammer section, ring 41 and internal gear 51
from housing. (Fig. 5)
(2) Remove internal gear 51 by unscrewing 4 pcs. of pan head screw M4x12. (Fig. 6)
(3) Remove eight PT3x16 tapping screws. Now housing R can be separated from housing L. (Fig. 7).
Fig. 5 Fig. 6
Internal gear 51 Ring 41 Internal gear case Pan head
Hammer section screw M4x12
Carbon brush
< Note >
The pan head screws
M4x12 are adhesive ones.
It is recommended
to employ impact driver
for unscrewing them.
Brush holder
cap
Fig. 7
Tapping screw
PT3x16
Housing R
Housing L
P6/9
Repair
1) -4. Disassembling Hammer and Spindle Section
(1) Press down hammer with Large gear extractor (1R045) by turning the handle. (Fig. 8)
(2) Adjust the opening for steel ball insertion to the top of cam groove on spindle. (Fig. 8)
(3) Remove 2 pcs of steel ball 5.6 from spindle. (Fig. 8)
(4) Hold the hammer section as illustrated in Fig. 9, and then loose the handle of large gear extractor.
Caution: Do not hold gear extractor as illustrated in Fig. 8 when loosening the handle of gear extractor.
Failure to follow this instruction could cause steel balls 3.5 to get out of hammer.
(5) Now hammer section can be disassembled as illustrated in Fig. 10.
(6) After removal of flat washer 24, steel balls 3.5 can be removed from hammer. (Fig. 11)
Fig. 8 Fig. 9
Spindle
Steel ball 5.6
Top of cam groove
on spindle
Opening for steel Hammer
ball insertion
Fig. 10 Fig. 11
Spindle section
Flat washer 12
Pin 5 Hammer
Cup Steel ball 3.5
washer 14 (24 pcs.)
Compression
spring 25 Spur gear 22
Spindle
Flat washer 24
Hammer
P7/9
Repair
2) Assembling
2) -1. Assembling Sleeve Section
Do the reverse of disassembling procedure.
2) -2. Assembling Hammer and Spindle Sections
(1) Before assembling the parts, apply Makita grease N. No.2 to the following parts.
* Top of the spindle where anvil contacts: approx. 0.5 g
* 2 pcs of steel ball 5.6: approx. 0.5 g
* 24 pcs of steel ball 3.5 which are mounted to hammer: approx. 0.5 g
* 2 pcs of spur gear 22: approx. 2.0 g
(2) And then do the reverse of disassembling procedure. (Fig. 11, 10, 9 and 8)
Note: Make sure that all of 24 steel balls (size = 3.5) are installed on hammer. (Fig. 11)
2) -3. Assembling Housing
When assembling the housing, be sure to follow the instructions below.
1. Before mounting the internal parts, make sure that rubber pin 4 is installed on
each of housing R and L. ( Fig. 12)
2. When mounting FET and FET spacer to yoke unit, tighten a ST3x8 tapping screw
to the recommended torque of 1.1 - 1.5N.m (11 - 15kgf.cm). (Fig. 13)
3. When fastening housing R to housing L, tighten each of eight PT3x16 tapping screws
to the recommended torque of 1.1 - 1.3N.m (11 - 13kgf.cm). (Fig. 14)
4. When mounting LED circuit section, tighten a tapping screw PT3 x 10
to the recommended torque of 0.54 - 0.66N.m (5.3 - 6.5 kgf.cm).
(See Fig. 2 in page 4.)
Fig. 12
Housing L Housing R
Switch
Rubber pin 4
Make sure that rubber pin 4 is installed on
each of housing R and L.
Fig. 13 Fig. 14
Yoke unit Tapping screw
PT3x16 (8 pcs)
FET spacer
FET
(Field effect
transistor)
Housing R
Tapping screw
ST3x8
Housing L
P8/9
Repair
2) -4. Assembling Hammer Case to Housing
(1) When mounting internal gear case to housing, be sure to follow the instructions below. (Fig. 15)
* Always use brand-new M4x12 pan head screw.
* Tighten each of four M4x12 pan head screws to the
recommended torque of 0.88 - 1.8 N.m (9.0 - 18 kgf.cm).
(2) Fit socket 30-78 (Part No.134847-1) over the hex portion of hammer case, and then tighten
the socket to the recommended torque of 25 - 30 N.m (260 - 310 kgf.cm). (Fig.16)
Caution:
Do not fail to install anvil on hammer case before fastening hammer case to housing.
Fig. 15 Fig. 16
Hammer case
Internal gear case Pan head screw M4x12
Anvil
Hex portion Socket 30-78
of hammer case (134847-1)
(4) Install stopper on housing.
Caution:
Because stopper is not reversible when installed on housing, be sure to place it as illustrated in Fig. 17.
Fig. 17
Correct
Stopper
Wrong
P9/9
Circuit diagram
Endbell Color index of lead wires' sheath
Black
Red
FET
(Field Effect Transistor)
M2
LED circuit
M1
Switch
Wiring diagram
Before installation of internal parts
Put the slack portion of LED
lead wires here.
LED circuit
section
After installation of internal parts Boss
Put the following lead wires
Endbell complete deep in the lead holder.
* Lead wire (black) of LED
* Lead wire (red) of LED
Motor
FET
LED circuit
Switch
Rib section
Route endbell lead wire (black)
between FET and the rib.