Makita 6911HD User manual

Cordless Impact Wrench
Capacltles
I
Square drive
Standard bolt High tensile bolt
Equipped with Electric Brake
12.7 mm (1/2”) MODEL 6911HD
12.7 mm (1/2”) MODEL 691lHDW
12.7
mm (112”) MODEL 691lHDWG
With Fast Charger
With Fast Charger
Impact per minute
INSTRUCTION MANUAL
M8 - M14 (5116’’ - 9/16’,) 0 - 2.500
M6
- M12 1114” - 112”) 12.7 mm (112”)
No load Speed
IRPMI
Net weight
Max. fastening torque
Dim ens 10 n s
lSee note 1 below) IL x W x HI
Voltage I Input I OUtDUt I Charqing time
0 - 1,800
12
v I AConlv50Hz 60Hr I DC72V-12V I 1 Hr.
~
1.8 kg 14.0 Ibs)
221
mm x 79 mm x 230 mm
18-314” x 3-118’’ x 9”)
1,200
kg.cm 187 ft-lbSI
Note 1. After fastening high tensile bolt M14 (F11T) for 8 seconds while using a fully charged battery cartridge.
2. Manufacturer reserves the right to change specifications without notice.
3. Specifications may differ from country to country.
WARNING: For your personal safety, READ and UNDERSTAND before using.
SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE.

IMPORTANT
SAFETY INSTRUCTIONS
(For All Tools)
WARNING:
WHEN USINGELECTRICTOOLS, BASICSAFETY
PRECAUTIONSSHOULDALWAYS BE FOLLOWEDTO REDUCE
THE RISK
OF FIRE, ELECTRIC SHOCK, AND PERSONAL
INJURY, INCLUDING THE FOLLOWING:
READ ALL INSTRUCTIONS.
1.
2.
3.
4.
5.
6.
7.
8.
9.
IO.
11.
12.
13.
2
KEEP WORK AREA CLEAN. Cluttered areas and benches invite injuries.
CONSIDER WORK AREA ENVIRONMENT. Don't use power tools
in damp
or wet locations. Keep work area well
lit. Don't expose power tools to rain.
Don't use tool
in presence of flammable liquids or gases.
KEEP CHILDREN AWAY. All visitors should be kept away from work area.
Don't let visitors contact tool or extension cord.
STORE IDLETOOLS. When not
in use, toolsshould bestored in dry, andhigh
or locked-up place
- out of reach of children.
DON'T FORCETOOL.
It will dothejob better and safer atthe ratefor which
it was intended.
USE RIGHT TOOL. Don't force small tool or attachment to do the job
of a
heavy-dutytool. Don't usetool for purpose not intended; for example, don't
use circular saw for cutting tree limbs
or logs.
DRESS PROPERLY. Don't wear looseclothing
or jewelry. They canbecaught
in moving parts. Rubber gloves and non-skid footwear are recommended
when working outdoors. Wear protective hair covering tocontain longhair.
USE SAFETY GLASSES. Also use face or dust mask if cutting operation is
dusty.
DON'T ABUSE CORD. Never carry tool by cord
or yank it todisconnectfrom
receptacle. Keep cord from heat, oil, and sharp edges.
SECURE WORK. Use clamps or a vise to hold work. It's safer than using
your hand and
it frees both hands to operate tool.
DON'T OVERREACH. Keep proper footing and balance at all times.
MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean
for better and
safer performance. Follow instructions for lubricatingand changing acces-
sories. Inspecttoolcordsperiodicallyandifdamaged, haverepaired byautho-
rized service facility. Inspect extension cords periodically and replace if
damaged. Keep handles dry, clean, and free from oil and grease.
DISCONNECTTOOLS. When not
in use, beforeservicing, and when chang-
ing accessories, such as blades, bits, cutters.

14. REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking to
see that keysand adjusting wrenches are removed fromtoolbefore turning
it on.
15. AVOID UNINTENTIONALSTARTING. Don't carry toolwithfinger onswitch.
Be sure switch is OFF when plugging in.
16. EXTENSIONCORDS. Make sure your extension cord is in good condition.
When using an extension cord, be sure to use one heavy enough to carry
the current your product will draw. An undersized cord will cause a drop
inlinevoltage resulting in
loss of power and overheating. Table 1 shows the
correct size to use depending on cord length and nameplate ampere rating.
If in doubt, use the next heavier gage. The smaller the gage number, the
heavier the cord.
TABLE 1 MINIMUM GAGE FOR CORD SETS
0- 6
6 - 10
10
- 12
12
- 16
Total Length of Cord in Feet
0-225 I 26 - 50 I 51 - 100 I 101 - 150
18 16 14
16 16 14 12
14 12
Not Recommended
18 16 ;: I 12
Ampere Rating
More Not More
Than Than AWG
3

VOLTAGE WARNING: Beforeconnecting the tool to a power source (receptacle.
outlet, etc.) be sure the voltage supplied is the same as that specified on
the
nameplateof the tool. A power source with voltage greater than that specified
for the toolcan result
in SERIOUS INJURY to the user - as well as damage to
the tool. If in doubt,
DO NOT PLUG IN THE TOOL. Using a power source with
voltage less than the nameplate rating is harmful to the motor.
4

IMPORTANT SAFETY INSTRUCTIONS
FOR CHARGER &
BATTERY CARTRIDGE
Length of Cord (Feet)
AWG Size of Cord
I. SAVE THESE INSTRUCTIONS - This manual
contains important safety and operating instructions for battery charger.
2. Before using battery charger, read all instructions and cautionary markings
on (1) battery charger, (21 battery, and (3) product using battery.
3. CAUTION - To reduce risk of injury, charge only MAKITA Battery Cartridge
1200 & 1201. Other types of batteries may burst causing personal injury
and damage.
4. Do not expose charger to rain or snow.
5. Use of an attachment not recommended or sold by the battery charger
manufacturer may result
in ariskof fire, electric shock, or injurytopersons.
6. To reduce risk of damage toelectric plug and cord, pull by plug rather than
cord when disconnecting charger.
7. Make sure cord is located so that it will not be stepped on, tripped over, or
otherwise subjected to damage or stress.
8. An extension cord should not be used unless absolutely necessary. Use of
improper extension cord could result in a risk of fire and electric shock. If
extension cord must be used, make sure:
a. That pinsonplugofextension cordare thesame number, size, andshape
b. That extensioncord isproperly wired and
in goodelectrical condition; and
c. That wire size isat least as large as the one specified inthe table below.
TABLE
1
RECOMMENDED MINIMUM AWG SIZE FOR
EXTENSION CORDS
FOR BATTERY CHARGERS
as those of
plug on charger;
25
50 100 150
18 18 18
16
5

ADDITIONAL SAFETY RULES
FOR CHARGER & BATTERY CARTRIDGE
1. Do not charge Battery Cartridge when temperature is BELOW 10°C (50OF)
2. Donotattempt touseastep-uptransformer, anenginegenerator or DCpower
3. Do not allow anything to cover or clog the charger vents.
4. Always cover the battery terminals with the battery cover when the battery
5. A battery short can cause a large current flow, overheating, possible burns
or ABOVE 4OoC (104OF).
receptacle.
cartridge is not used.
and even a breakdown.
(1) Do not touch the terminals with any conductive material.
(2) Avoid storing battery cartridge in acontainer with other metalobjects such
(3) Do not expose battery cartridge to water or rain.
ture may reach or exceed 5OoC (122OF).
completely worn out. The battery cartridge can explode
in a fire.
as nails, coins, etc.
6. Do not store the tool and Battery Cartridge in locations where the tempera-
7. Do not incinerate the Battery Cartridge even if it is severely damaged or is
ADDITIONAL SAFETY RULES
FOR CORDLESS IMPACT WRENCH
1. Be aware that this tool isalways in an operating condition, because it does
2. Wear ear protectors.
3. Check the socket carefully for wear, cracks or damage before installation.
4. Hold the tool firmly.
5. Always be sure you have a firm footing.
Be sure no one is below when using the tool
in high locations.
6. The proper fastening torque may differ depending upon the kind or size of
the bolt. Check the torque
with a torque wrench.
7. When driving into walls, floors or wherever "live" electrical wires may be
encountered, DO NOT TOUCH ANY METAL PARTS
OF THE TOOL!
Holdthetoolonly bytheinsulatedgrasping surfaces toprevent electric shock
if you drive into a "live" wire.
not have to be plugged into an electrical outlet.
SAVE THESE INSTRUCTIONS.
6

*To remove the battery cartridge, pull out
the
set plate on the tool and grasp both
sides of the cartridge while withdrawing
it fromthe tool.
*To insert the battery cartridge, align the
tongue on the battery cartridge with the
groove in the housing and slip
it into
place. Snap the
set plate back into place.
Be sure to close the
set plate fully before
using the tool to prevent the battery
cartridge from accidentally falling out of
the tool.
*Do not use force when inserting the battery cartridge. If the cartridge does not slide in
easily,
it is not being inserted correctly.
Set 'late
Battery cartridge
Charging
Your new batterycartridge is not charged.
You will need to charge
it before use. Use
the fast charger Model
DC1201 to charge
the battery cartridge.
*Plug the fast charger into the proper
A/C
voltage source. The charging light will
flash in green color.
*Insert the battery cartridge
so that the
plus and minus terminals on the battery
cartridge are on the same sides
as their
respective markings on the fast charger.
Insert the cartridge fully into the port
so that it rests on the charger port floor.
*When the battery cartridge
is inserted, the charging light color will charge from green to
red and chargingwill begin. The charging lightwill remian
lit steadily during charging.
*When charging
is completed, the charging light color will change from redtogreen and
a tone will sound steadily for about 5 seconds. The chargingtime is approximately one
hour.
*After charging, unplugthe charger fromthe power source.
7

CAUTION :
*The fast charger Model DC1201 is for charging Makita battery cartridge. Never use it
for other purposes or for other manufacturer’s batteries.
*When
you charge a new battery cartridge or a battery cartridge which has not been used
for
a long period of time, it may not accept a full charge. This is a normal condition and
does not indicate
a problem. You can recharge the battery cartridge fully after dis-
charging
it completely and recharging a couple of times.
If you charge a battery cartridge from a just-operated tool or a battery cartridge which
has been left in
a location exposed to direct sunlight or heat for a long time, the charg-
ing light may flash in red color. If this occurs, wait for
a while. Chargingwill begin after
the battery cartridge cools. The battery cartridge will cool faster if you remove the
battery cartridge from the fast charger.
If the charging light flashes alternately in green and red color and a tone sounds “beep,
beep, beep,
. . .” for about 20 seconds, a problem exists and charging is not possible.
The terminals on the charger or battery cartridge are clogged with dust or the battery
cartridge
is worn out or damaged.
0 If youwish to charge two battery cartridges, allow 15 minutes between chargings on the
fast charger.
Selecting correct socket
Always use the correct size socket for boltsand nuts. An incorrect size socket will result
in inaccurate and inconsistent fasteningtorque and/or damage to the bolt or nut. Refer to
accessories section for socket
size.
Installing or removing socket
CAUTION ;
Always be sure that the tool is switched off and the battery cartridge is removed before
installing or removing the socket.
To instal the socket, push
it onto the anvil
of the tool until
it locks into place.
To removethe socket, simply pull
it off.
Socket
8

Switch action
Tool speed is increased by increasingpres-
sure on the trigger. To start
the tool,
simply pull the trigger
Release the trigger
tostop.
I ', '\
Switihtrigger
CAUTION :
Before inserting the battery cartridge into the tool, always check to see that the switch
trigger actuates properly and returns tothe
"OFF" position when released.
Reversing switch action
This tool has a reversing switch to change
the direction of rotation. Move the revers-
ing switch
to the left for clockwise rota-
tion or tothe right for counterclockwise.
CATUION
:
0Alwasy check the direction of rotation before operation.
.Use the reversing switch only after the tool comes to
a complete stop. Changing the
direction
of rotationbefore the tool stops may damage the tool.
9

Operation
200
(141
0
The proper fastening torque may differ depending upon the kind or size of the bolt. The
relation between fastening torque and fastening time is shown in the figures below.
Standard bolt
for M8 15/16”)
-
I I I I 8 1
ko . cm
Ifi.Ibs)
1000 M12 x45 1112” x 1-25/32”)
(721 1 /-
M14 x45 (9/16” x 1-25/32”)
Proper fastening torque
for M14 (9/16’l
OI M10 X 45 (31%’ x 1-25/32”) Proper fastening
:: 400
IL“ (29)
for M12 (112”)
Proper fastening torque
for M10 (3/8’)
O L-
Seconds
1234
Fasteningtime
10

Hold the tool firmly and place the socket over the bot or nut. Turn the tool on and
fasten for the proper fasteningtime.
NOTE
:
0 Hold the tool pointed straight at the bolt or nutwithout applying excessive pressure on
the tool.
*Excessive fasteningtorque may damage the bolt or nut. Beforestarting your job, always
perform
a test operation to verify the adequate fastening speed and time for your bolt
or nut.
The fastening torque
is affected by a wide variety of factors including the following.
After fastening, always check the torque with
a torque wrench.
1. When the battery cartridge is discharged almost completely, voltage will drop and
2. Socket
the fasteningtorque will be reduced.
*Failure to use the correct size socket will cause
a reduction inthe fasteningtorque.
*A worn socket (wear on the hex end or square end) will cause
a reduction in the
fasteningtorque.
3. Bolt
*Even though the torque coefficient and the class of bolt are the same, the proper
*Even though the diameters of bolts are the same, the proper fastening torque will
fastening torque will differ accordingtothe diameter of the bolt.
differ accordingtothe torque coefficient, the
class of bolt and the bolt length.
4. The use of universal joint or the extension bar somewhat reduces the fastening force
of the impact wrench. Compensate by fastening for
a longer period of time.
5. The type of materials to be fastened, the manner of holding the tool and the tool
CAUTION
:
If the tool is operated continuously until the battery cartridge has discharged,allow the
tool to rest for
15 minutes before proceedingwith a fresh battery.
speed will affect the torque.
MAINTENANCE
CAUTION:
Always be sure that the tool
is switched off and the battery cartridge is removed
before attempting to perform inspection or maintenance.
To maintain product SAFETY and RELIABILITY, repairs, maintenance or adjustment
should be performed by MakitaAuthorized or Factory Service Centers, always using
Makita replacement parts.
11

ACCESSORIES
CAUTION :
These accessories or attachments are recommended for use with your Makitatool specified inthis
manual. The use of any other accessories or attachments might present a risk of injury to persons.
The accessories or attachments should be used only
in the proper and intended manner.
133216-3
133217-1
133218-9
133219-7
Socket
-
22-42
22
- 52
23 - 43
23- 52
22 M14 M12
- 9/16'
-
23
Extension bar
Part No. 785201-8
Recommended for work in tight place
where the conventional socket will not
reach.
Universal joint
Part No. 785205-0
This accessory is useful in tight spaces where
the tool cannot be held
in line with the axis
of the bolt or nut.
12

Bits Fast charger
Model DC1201
Part No. 113126-0
Size Part No.
Phillips
Battery cartridge 1200
High capacity battery 1201
Part No. 192271-4
Part
No. 192296-8
Battery cover
Part No. 414938-7
*Power display battery (High cap.) 1201A Bit adapter
Part No. 192407-5 Part
No. 785069-2
For driving machine screws
Plastic carrying case Oval socket
Part No. 785401-0
0 ring (Part No. 213405-7)
13

Apr-O5-'93 EN
CORDLESS IMPACT WRENCH
Model 6911HD
Note: The switch and other part configurations
may differ from country
to country.
14

Apr-O5-'93 EN
MODEL 6911HD
~
15
16
17
18
19
20
21
22
23
24
26
21
28
'i:M $tD DESCRIPTION
29
1
1
2
1
1
1
1
1
1
1
1
1
$cD DESCRIPTION
~
10
11
12
13
14
11
26
31
41
51
61
I1
81
91
4
1
1
1
1
Name Plate
Tapping
Screw 014x20
Pan Head Screw M4x20 [With Washer1
Housing Set lWith llem 241
set Plate
Switch Lever
Switch
Lever
Hammer Care
Tapping
Screw MT4x2O
0 Ring 50
Flaf Washer 18
Anvil
H.3"W
Steel
Ball 3 5
Flaf Washer 28
Compression Spring 30
Steel Ball 5 6
Spindle
DC Motor 12 V
Plane Beam9 4
Gear Complete 10-38
Plane Beallng 4
Housing Set [With Item 41
Battery Holder
High Capacity Battery
1201
Hand Strap
Note The
Switch and other par¶ specifications may differ from country to country
15

Recycling the Battery
The only way to dispose of a Makita battery is
to recycle it. The law prohibits any other
method
of disposal.
To recycle the battery:
1. Removethe battery from the tool.
2. a).
or
b).
1 Ni-Cd I
Take the battery to your nearest Makita Factory Service Center
Take the battery
to your nearest Makita Authorized Service Center or
Distributorthat has been designatedas a Makita battery recycling location.
Call your nearest Makita Service Center or Distributor to determine the location
that provides Makita battery recycling. See your local Yellow Pages under
’ ’ Tools-Electric’ :
MAKlTA LIMITED ONE YEARWARRANTY
Warranty Policy
Every Makita tool is thoroughly inspected and tested before leaving the factory. It is warranted to
be free of defects from workmanship and materials for the period of ONE YEAR from the date of
original purchase. Should any trouble develop during this one-year period return the COMPLETE
tool. freight prepaid, to
one of Makita’s Factory or Authocized Sewice Cer& If inspectlo” shows
the trouble IS caused by defective workmanship or material, Makita will repur (or at our option,
replace) without charge.
This Warranty does not apply where:
repairs have been made or attempted by others.
repairs are required because of normal we- and tear:
The tool has been abused, misused or improperly maintained:
alterations have been made to the tool.
IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY INDIRECT INCIDENTAL OR CON-
APPLIES BOTH DURING AND AFTER THE TERM OFTHIS WARRANTY.
MAKITA DISCLAIMS LIABILITY
FOR ANY IMPLIED WARRANTIES, INCLUDING IMPLIED
WARRANTIES OF “MERCHANTABILITY” AND “FITNESS
FOR A SPECIFIC PURPOSE,
AFTER THE ONE-YEAR TERM OFTHISWARRANTY.
SEQUENTIAL
DAMAGES FROM THE SALE OR USE OF THE PROD~CT.THIS DISCLAIMER
This Warranty gives you specific legal rights, and you may also have other rights which vary from
state to state. Some stales do not allow the excluslon
or limitation of incidental or consequential
damages, so the above limitation or exclusion may not apply to you. Some states do not allow
limitation
on how long an implied warranty lasts, so the above limitation may not apply to you.
Makita Corporation
3-11 -8, Sumiyoshi-cho,
Anjo, Aichi
446 Japan
883903 - 063 PRINTED INJAPAN
1994-9-N