Makita 6905H User manual

Impact Wrench
capacmes
Square
Bolt size
Standard bolt
Hlgh tensile bolt drive
M12 ~ M20 M12 ~ M16 12 7mm
(7116" ~ 314") (7116'' ~~ 518") 1112")
12.7 mm (112") MODEL 6905H
Impacts No load pseed Fastening Overall Net
tOrqUe length weight
per minute iwM)
2,200 3.000 kg.cm 275 mm 2 3 kg
(217ft lbsl I10-13116"l (5 lbsl
2'600
INSTRUCTION MANUAL

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

Ampere Rating
More
Not More
Than Than
0- 6
6 - 10
10
- 12
12
- 16
3
Total Length of Cord in Feet
0 - 25 26 - 50 51 - 100 101 - 150
AWG
18 16 16 14
18 16 14
12
16 16 14 12
14 12
Not Recommended

VOLTAGE WARNING: Before connecting the tooltoa power source (receptacle,
outlet, etc.) be sure the voltage supplied is the same as that specified on the
nameplate of the tool. A power source
with voltage greater than that specified
for the tool can result in SERIOUS INJURYto 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.
ADDITIONAL SAFETY RULES
1. Wear ear protectors.
2. Check the socket carefully for wear, cracks or damage before installation.
3. Hold the tool firmly.
4. Always be sure you have a firm footing.
5. The proper fastening torque may differ depending upon the kind or size of
Be sure no one is below when using the tool in high locations.
the bolt.
Check the torque with a torque wrench.
SAVE THESE INSTRUCTIONS.
4

Selectingcorrect socket
Always use the correct size socket for bolts and nuts. An incorrect size socket will result
in inaccurateand inconsistent fasteningtorque and/or damage to the bolt or nut. Refer to
accessoriessection for socket
size.
Installing or removingsocket
CAUTION :
Always be sure that the tool is switched off and unplugged before installing or removing
the socket.
To install the socket, push it onto the anvil
of the tool until it locks into place.
To removethe socket, simply pull it off.
Switch action
To start the tool, simply pull the trigger.
Release the trigger to stop.
CAUTION
:
Before plugging in the tool, always check to see that the trigger switch actuates properly
and returns to the
"OFF" position when released.
Reversingswitch action
This tool has a reversingswitch to change
the direction of rotation. Press the right
side of the switch for clockwise rotation or
the left side of the switch for counterclock-
wise rotation.
CAUTION
:
Always check the direction of rotation before operation.
.Use the reversing switch only after the tool comes to
a complete stop. Changing the
direction of rotation before the tool stops may damage the tool.
5

Operation
The proper fastening rorque may differ depending upon the kindor
size of the bolt. The
relation betweenfasteningtorque and fastening time
is shown in the figures below.
Standard bolt
High tensile bolt
kg . cm
‘ft ’ Ibrl I
0 i 2 3 4 5 6 7 8 Seconds
Fastening time
Hold the tool firmly and place the socket over the bolt or nut. Turn the tool on and
fasten for the proper fasteningtime.
NOTE
:
0 Hold the tool pointed straight at the bolt or nut without applying excessive pressure on
0 Excessive fastening torque may damage the bolt or nut. Beforestarting your job, always
6
the tool.
perform
a test operation toverify the adequatefastening 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. Voltage
2. Socket
Voltage drop will cause
a reduction in the fastening rorque.
Failure to use the correct size socket will cause a reduction in the 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
4. The use of the universal joint or the extension bar somewhat reduces the fastening
5. The type of materials to be fastened and the manner of holding the tool will affect
fasteningtorque will differ according to the diameter of the bolt.
differ accordingtothe torque coefficent, the
class of bolt and the bolt length.
force of the impact wrench. Compensate by fasteningfor
a longer period of time.
the torque.
MAINTENANCE
CAUTION :
Always be sure that the tool is switched off and unplugged before attempting to perform
inspection or maintenance.
To maintain product SAFETY and RELIABILITY, repairs, carbon brush inspection and
replacement, any other maintenance or adjustment should be performed by Makita
Authorized or Factory Service Centers, always using Makita replacementparts.
7

ACCESSORIES
CAUTION :
These accessories or attachments are recommended for use with your Makita tool specified in this
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.
0 Extension bar
Part No. 785201-8
Recommendedfor work in tight
place where the conventional
socket will not reach.
0 Universaljoint
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.
0 Steel carrying case
Part No. 182494-2
8

Nov -27-'91 US
12.7 mm (1/2")
IMPACT WRENCH
Model 6905H
Note: The switch and other part configuratlons
may differ from country to country.
9

MODEL 6905H
I:"$" AtD DESCRIPTION ITEM NO.
NO. USED
1
2
3
4
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
-
2
1
1
1
1
31
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
-
Carbon Brush
Housing Set IWiih Item 341
0 Ring 70
Switch
Switch
Steel Ball 4
Steel Ball 6 4
Steel Ball 6 4
Spindle
Steel Ball 6 4
Compression Spring 34
Flat Washer 34
Hamme,
Anvil
Flat Washer 10
Rubber Washer 18
Sleeve 18
011 Sea1 18
Bumper
Cushion
Plate
Ball Bearing 606LLB
Fan 60
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
E02
E03
1
1
1
1
1
1
1
1
1
1
1
10
1
1
2
1
1
1
1
1
1
-
Nov-27-'91 US
DESCRIPTION
ARMATURE ASSEMBLY
[With
Item 22 ~ 251
Ball Bearing 627LLB
Flat Washer 14
0 Ring 18
Field
Rubber
Pin 4
Rubber Pin 4
Plane Bearing
6
Gear Complete 16 38
Plane Beam9 8
Housing Set IWiIh lfem 21
Pan Head Screw M4x25 lWith Washer1
Makita Label
Name Plate
Tapping Screw 4x18
Strain Relief
Strain Relief
Cord Guard
Card
CllP
P,,, 4
Note The switch and other part specifications may differ from country to country
10

MAKITA LIMITEDONE YEAR WARRANTY
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, toone of Makita’s Factory or Authorized Service Centers. If inspection shows
the trouble is caused by defective workmanship or material, Makita
will repair (or at our option,
replace) without charge.
ThisWarranty does not apply where:
repairs have been made or attempted by others:
repairs are required because of normal wear and tear:
e The tool has been abused, misused or improperly maintained;
e alterations have been made to the tool.
IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY INDIRECT, INCIDENTAL OR CON-
SEQUENTIAL DAMAGES FROM THE SALE OR USE OFTHE PRODUCT. THIS DISCLAIMER
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 THEONE-YEAR TERM OFTHISWARRANTY.
This Warranty gives you specific legal rights, and you may also have other rights which vary from
state
to state. Some states do not allow the exclusion 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.
L J
Makita Corporation
3-11 -8, Sumiyoshi-cho,
Anjo, Aichi
446 Japan
883796AO68
PRINTED IN JAPAN
I995 - 3 - N