Stahlwille Standard MANOSKOP 721/5 Manual de usuario
EN
28
STAHLWILLE
Standard MANOSKOP®
721
Service MANOSKOP®
730
Technical description
All models
MANOSKOP®721, 730 are adjustable
torque wrenches with a cut-out, tactile
and audible cut-out signals.
These torque wrenches have a safety
cut-out mechanism.
The wrench is set to cut-out at a
certain torque level by setting the
required value on the force-free sliding
scale.
The setting slide has an automatic
setting fail-safe mechanism.
The measuring element is a flexible
rod. The flexible rod is not
pretensioned so it is only under tension
from the start to the end of the actual
tightening operation until the wrench
cuts out.
List of contents
Technical description ..................28
Safety instructions ......................32
Operation ....................................35
Maintenance ...............................44
Cleaning .....................................49
Accessories ................................50
Disposal ......................................50
29
As soon as the torque wrench is
released, it is ready for the next job.
These wrenches will only tighten in
one direction. To use the wrench for
loosening, turn it over. Exception: The
MANOSKOP®721/5, 721/15 and
721/20 cannot be used for counter
clockwise tightening.
If necessary, these torque wrenches
can be readjusted without dismantling.
Maximum permissible deviation of the set
value from the absolute value at cut-out is
4%. MANOSKOP®721 and 730 comply
with DIN EN ISO 6789, Type II, Class A.
Every MANOSKOP®has a unique serial
number and is supplied with a works
calibration certificate.
MANOSKOP®721/5, 721/15
and 721/20 ...
... have a permanent, switchable ratchet
with a permanent square drive (sizes are
shown in the Technical Specifications on
page 30). Controlled counter clockwise
tightening is not possible.
Standard MANOSKOP®
721/30 ...
... has a permanent, switchable ratchet
with a push-through 12.5 (1/2") square
drive.
EN
30
Service MANOSKOP®730/2
to 730/65 ...
... can be fitted with various insert tools.
For this purpose, the head of the wrench
has a recessed square drive at the face
(sizes are shown in the Technical
Specifications) with a double-sided
locating hole and insertion groove. The
insert tools can be attached in the
„normal“ position or rotated through 180°.
Controlled counter clockwise tightening is
also possible.
Table of technical
specifications
length to centre of square drive
MANOSKOP®721
721/5 721/15 721/20 721/30
range [N·m]
[ft·lb]
6–50
5–36
30–150
25–110
40–200
30–150
60–300
50–220
square drive shaft,
fixed
usable from both
sides
10 (3/8'')
—
12.5 (1/2'')
—
12.5 (1/2'')
—
—
12.5 (1/2'')
functional length
LF[mm] 293 387 483 486
Length [mm] 338 415 418 530
weight [g] 915 1310 1490 1710
31
MANOSKOP®730
Typ
730/2 730a/2 730a/2-1 730/4 730a/4 730/5 730a/5 730/10 730a/10 730/12 730a/12 730/20 730a/20 730/40 730/65 730/II/65
range
[N·m] 4–20 — — 8–40 — 6–50 6–50 20–100 20–100 25–130 25–130 40–200 40–200 80–400 130–650 130–650
[ft·lb] — — — — — 5–36 — 15–72,5 — 20–95 — 30–145 — 60–300 100–480 100–480
[in·lb] — 30–175 17,5–87,5 — 70–350 — 50–440 — 180–880 — 225–1150 — 350–1750 — — —
insert-able square
drive
[mm] 9 x 12 9 x 12 9 x 12 9 x 12 9 x 12 9 x 12 9 x 12 9 x 12 9 x 12 14 x 18 14 x 18 14 x 18 14 x 18 14 x 18 14 x 18 22 x 28
Length
[mm] 178,5 178,5 178,5 222 222 315 315 370 370 410 410 455 455 590 875 897
functional length
LF[mm] 174 174 174 218 218 288 288 343 343 390 390 435 435 570 855 907
standard
extension SF
[mm] 17,5 17,5 17,5 17,5 17,5 17,5 17,5 17,5 17,5 25 25 25 25 25 25 55
weight
[g] 315 315 315 395 395 805 805 965 965 1100 1100 1250 1250 1880 3280 3280
EN
32
Safety instructions
Intended Purpose
MANOSKOP®721 and 730 have been
designed for controlled tightening of
screw joints in a workshop environment.
In order to loosen a nut or bolt during the
normal tightening process, the
MANOSKOP®can also be used in the
opposite direction. MANOSKOP®721
and 730 may only be used for these
purposes. To do so, the correct
attachments must be used with the torque
wrench.
The „intended purpose“ includes full
adherence to the information contained in
this instruction booklet, in particular the
safety instructions and technical tolerance
limits. The owner must ensure that this
information is noted and observed by all
users.
Any use beyond the use described here is
in breach of the intended purpose.
The buyer and user are responsible for
any damage or injury resulting from non-
adherence to these instructions.
MANOSKOP®721 and 730 have not
been designed for tightening of screw
joints under series production
conditions. This might lead to
inaccurate readings as a result of
inadvertent operation of the sliding
scale.
The MANOSKOP®may not be used
for uncontrolled loosening of nuts &
bolts — for example rusty joints. This
may cause damage to the torque
wrench.
33
The MANOSKOP®may not be used
as a hammer. This will lead to injury
and damage.
Structural features of the
information on dangers
Structural features of
notices regarding material
and environmental damage
Correct torque settings ...
... can be lifesaving in some applications.
For this reason, please note the following
points:
CAUTION
Notices containing the
word CAUTION warn of a
hazardous situation
which may lead to slight
or moderate injuries.
ATTENTION!
These notices warn of a situation
which leads to material or
environmental damage.
CAUTION
Impermissible deviation
from the triggering
accuracy leads to a risk
of injury.
Make sure that the
triggering accuracy is
checked at the
prescribed intervals and
is adjusted if required.
EN
34
Unless internal regulations at the place of
use say otherwise (e.g. test equipment
inspection to ISO 9000 et seq.) inspection
should take place after approx. 5000 uses
or every 12 months, whichever is the
shorter.
If an inspection shows that there is
excessive deviation, the torque wrench
will have to be readjusted (see page 46).
ATTENTION!
Impermissible deviation from the
triggering accuracy leads to a risk
of material damage.
Make sure that the triggering
accuracy is checked at the
prescribed intervals and is
adjusted if required.
35
Operation
MANOSKOP®721 and 730 are
measuring instruments and must be
treated with utmost care. Avoid subjecting
the tool to physical knocks, chemicals or
excessive temperatures beyond the limits
given in these instructions.
Please note that extremes of climate
(cold, heat, humidity) may affect
measuring accuracy.
Avoid overloading the tool by more than
30% of the maximum permissible load in
the direction of tightening or in the
opposite direction. The MANOSKOP®
may be damaged. After such an overload,
the readings may be inaccurate in such a
way that the user does not notice.
EN
36
Selecting the inserts and
insert tools
Remember that the tool has to be of the
correct type and the right size for the
screw or bolt.
CAUTION
Faulty or incorrect plug-
in tools lead to a risk of
injury.
Exclusively use plug-in
tools from STAHLWILLE.
Make sure that the
permissible load
capability of the plug-in
tool exceeds the capacity
of the torque wrench.
Only manufacture special
tools in consultation with
STAHLWILLE.
CAUTION
Unsecured plug-in tools
lead to a risk of injury.
Make sure that plug-in
tools are always secured
against pulling out by
engaging the retaining
pin.
ATTENTION!
Unsecured plug-in tools lead to a
risk of material damage.
Make sure that plug-in tools are
always secured against pulling out
by engaging the retaining pin.
37
Attaching insert tools
721/5, 721/15 and 721/20
1. For controlled clockwise tightening,
switch the ratchet to „R“ or, for
uncontrolled loosening of joints, to „L“.
2. Slide the insert over the square drive
of the ratchet until it locates.
721/30
1. Check that the square drive is fitted to
the right side of the torque wrench.
2. If not, push the square drive out
through the upper side to the right
side.
3. For controlled tightening, switch the
ratchet to „R“ or, for uncontrolled
loosening of joints, to „L“.
Este manual sirve para los siguientes modelos
19
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