Maintenance; Optional Accessories - Makita TW161D Instruction Manual

Proper fastening torque for high tensile bolt
N•m
(kgf•cm)
140
(1430)
120
(1224)
100
(1020)
80
(816)
2
60
(612)
40
(408)
20
(204)
0 1
1. Fastening time (second) 2. F astening tor q ue
NOTE: H ol d t h e tool pointe d straig h t at t h e bolt or nut.
NOTE: Excessive fastening torque may damage the
bolt/nut or impact socket. Before starting your job,
always perform a test operation to determine the
proper fastening time for your bolt or nut.
NOTE: If the tool is operated continuously until the
battery cartridge has discharged, allow the tool to rest
for minutes before proceeding with a fresh battery
c artri d ge.
The fastening torque is affected by a wide variety of
factors including the following. After fastening, always
c h e c k t h e tor q ue w it h a tor q ue w ren c h .
. When the battery cartridge is discharged almost
completely, voltage will drop and the fastening
tor q ue w ill be re d u c e d .
2. I mpa c t so c ket
• F ailure to use t h e c orre c t si z e impa c t so c ket
w ill c ause a re d u c tion in t h e f astening tor q ue.
A worn impact socket (wear on the hex end or square
•
end) will cause a reduction in the fastening torque.
3. Bolt
Even though the torque coefficient and the class
•
of bolt are th e same, th e proper f astening torq ue
w ill d if f er ac c ord ing to th e d iameter of bolt.
• Ev en th ough th e d iameters of bolts are th e same, th e
proper f astening torq ue w ill d if f er ac c ord ing to th e
torque coefficient, the class of bolt and the bolt length.
The use of the universal joint or the extension bar some-
4 .
w h at re d u c es t h e f astening f or c e o f t h e impa c t w ren c h .
Compensate by fastening for a longer period of time.
5 . T h e manner o f h ol d ing t h e tool or t h e material o f
d ri v ing position to be f astene d w ill a f f e c t t h e tor q ue.
6 . O perating t h e tool at lo w spee d w ill c ause a re d u c -
tion in t h e f astening tor q ue.
M12
M12
M10
M10
M8
M8
2 3
1

MAINTENANCE

CAUTION:
Always be sure that the tool is
switched off and the battery cartridge is removed
before attempting to perform inspection or
maintenance.
NOTICE:
Never use gasoline, benzine, thinner,
alcohol or the like. Discoloration, deformation or
cracks may result.
T o maintain pro d u c t S A F E T Y an d R E L I A B I L I T Y ,
repairs, any other maintenance or adjustment should
be performed by Makita Authorized or Factory Service
Centers, always using Makita replacement parts.
OPTIONAL
ACCESSORIES
CAUTION:
These accessories or attachments
are recommended for use with your Makita tool
specified in this manual. The use of any other
a c c essories or atta c h ments mig h t present a risk o f
injury to persons. Only use accessory or attachment
f or its state d purpose.
If you need any assistance for more details regard-
ing these accessories, ask your local Makita Service
C enter.
• I mpa c t so c ket
• H ook
• E x tension bar
Universal joint
• S o c ket bit a d apter
Plastic carrying case
Makita genuine battery and charger
NOTE: Some items in the list may be included in the
tool package as standard accessories. They may
differ from country to country.
9 ENGLISH