Stahlwille Manoskop 721/5, Manoskop 721/15, Manoskop 721/30, Manoskop 730 User Manual
STAHLWILLE
Standard Manoskop
721
Service Manoskop®
®
730
List of contents
Technical description.................. 27
ã=Important safety points........... 30
Operation.................................... 32
Maintenance ............................... 42
Cleaning the Manoskop®........... 47
Accessories ................................ 48
Disposal...................................... 48
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.
27
•
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 and 721/15 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 and 721/15 ...
... have a permanent, switchable ratchet
with a permanent square drive (sizes are
shown in the Technical Specifications on
page 29). 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.
28
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
Manoskop® 721
721/5 721/15 721/30
range [Nm]
square drive shaft,
fixed
usable from both sides
Length [mm]
weight [g]
[ft.lb]
6–50
30–150
5–36
25–110
10 (3/8'')—12.5 (1/2'')——
338 415 530
915 1310 1710
60–300
50–220
12.5 (1/2'')
length to centre of square drive
Manoskop® 730
range insert-
[Nm] [ft.lb] [in.lb] [mm] [g]
Typ
730/2
730a/2
730/4
730a/4
730/5
730a/5
730/10
730a/10
730/12
730a/12
730/20
730a/20
730/40
730/65
4–20 — — 9 x 12 178.5 318
— — 35–175 9 x 12 178.5 318
8–40 — — 9 x 12 222 398
— — 70–350 9 x 12 222 398
6–50 5–36 — 9 x 12 315 800
6–50 — 50–440 9 x 12 315 800
20–100 15–72.5 — 9 x 12 370 950
20–100 — 180–880 9 x 12 370 950
25–130 20–95 — 14 x 18 410 1100
25–130 — 225–1150 14 x 18 410 1100
40–200 30–145 — 14 x 18 455 1230
40–200 — 350–1750 14 x 18 455 1230
80–400 60–300 — 14 x 18 590 1640
130–650 100–480 — 14 x 18 875 3400
square
able
drive
Length Weight
29
Important safety
ã
points
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 buyer is required to ensure that
all users comply with these instructions.
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 nonadherence 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 as
a hammer. This will lead to injury and
damage.
30
•
The Manoskop® may not be used for
uncontrolled loosening of nuts & bolts
— for example rusty joints. This may
cause damage to the torque wrench.
Correct torque settings ...
... can be lifesaving in some applications.
For this reason, please note the following
points:
ã
CA UTI ON !
In order to ens ure the
cut-out is w orking
accu rately, it should be
checked at r egu lar
intervals.
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 44).
Additional important safety points ...
... may apply depending on the
application. These are found in the
appropriate sections marked with danger
symbols ã.
31
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.
32
Selecting the inserts and insert tools
ã
CA UTI ON !
When using inse rts on
torq ue wrenches with a
square drive , ensure
they have been
manu factured to comply
with standards and are
the correct shape and
size for the nut or b olt to
be tightened.
STAHLWILLE inserts
guarantee the
connection will be a
good fit and th at the
driv e profile will fit
exac tly.
ã
CA UTI ON !
Please use only insert
tool s made by
STAHLWILLE.
These guarantee the correct lever length,
fit accurately in all situations and are
designed to have sufficient strength.
ã
CA UTI ON !
Ensure the m aximum
permissible loa d of the
insert or tool used i s not
exce eded. Th is might be
lowe r than the maximum
cut-out torque of the
torq ue wrench.
33
Loading...