Stahlwille MANOSKOP 721 Quick User manual

Instructions for use
EN
MANOSKOP®721, 730 Quick
Status: 07/2016

Contents
Technical description....................................................................................................................................3
All models...........................................................................................................................................................3
Standard MANOSKOP®721/5 Quick, 721/15 Quick, 721/20 Quick and 721QR/20 Quick ...............................4
Standard MANOSKOP®721/30 Quick ..............................................................................................................4
Service MANOSKOP®730/5 to 730/65 Quick ...................................................................................................4
Technical Data....................................................................................................................................................4
MANOSKOP®721 Quick..........................................................................................................................4
MANOSKOP®730 Quick..........................................................................................................................5
Safety instructions ........................................................................................................................................6
Intended Purpose ...............................................................................................................................................6
Structural features of the information on dangers..............................................................................................6
Structural features of notices regarding material and environmental damage...................................................6
Correct torque settings ......................................................................................................................................7
Operation........................................................................................................................................................7
Selecting the inserts and insert tools..................................................................................................................8
Attaching insert tools ..........................................................................................................................................8
721/5, 721/15, 721/20, 721QR/20 Quick..................................................................................................8
721/30 Quick ............................................................................................................................................9
Attaching insert tools —730/5 to 730/65 Quick.................................................................................................9
Removing insert tools.......................................................................................................................................10
730/5 to 730/65 Quick............................................................................................................................10
Setting the torque level.....................................................................................................................................10
Controlled counter clockwise tightening...........................................................................................................11
Uncontrolled loosening of nuts & bolts ............................................................................................................11
Using the torque wrench...................................................................................................................................12
Maintenance.................................................................................................................................................13
Checking the accuracy of the cut-out value .....................................................................................................13
Adjusting for deviations in cut-out value...........................................................................................................15
Cleaning .......................................................................................................................................................16
Accessories..................................................................................................................................................17
For all models...................................................................................................................................................17
For STAHLWILLE Service MANOSKOP®730 Quick.......................................................................................17
Services............................................................................................................................................................17
Disposal........................................................................................................................................................17

Technical description
3
Technical description
No
Explanation
1
MANOSKOP®
2
Sliding scale
3
Magnifying glass
4
Pressure plate
5
Ratchet adapter
All models
MANOSKOP®721 and 730 Quick 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 and is only under
tension during the tightening process until the
wrench cuts out.
After use, it does not need to be reset to the
lowest value.
As soon as the torque wrench is released, it is
ready for the next job.
The 2-component grip, which is ergonomically
designed, ensures pleasant and safe handling.
The right grip position is indicated by optical and
tactile signals.
These wrenches will only tighten in one direction.
Counterclockwise tightening is possible thanks to
an insert tool which is rotated by 180°. Exception:
The MANOSKOP®721/5 Quick, 721/15 Quick
and 721/20 Quick cannot be used for counter
clockwise tightening. Counterclockwise tightening
is possible with the MANOSKOP®®721/30 Quick
by means of a square drive which is pushed
through.
By means of the QuickRelease function, insert
tools can be changed quickly.
If necessary, these torque wrenches can be
readjusted without dismantling.

Technical description
4
Maximum permissible deviation of the set value
from the absolute value at cut-out is ± 4 %.
MANOSKOP®721 Quick and 730 Quick comply
with DIN EN ISO 6789, Type II, Class A.
Each MANOSKOP®has a serial number and is
delivered with a works calibration certificate in
accordance with the above stated
DIN EN ISO 6789.
Standard MANOSKOP®721/5 Quick,
721/15 Quick, 721/20 Quick and
721QR/20 Quick ...
... have a permanent, switchable ratchet with a
permanent square drive (sizes are shown in the
Technical Specifications). Controlled counter
clockwise tightening is not possible.
Standard MANOSKOP®721/30 Quick
...
... has a permanent, switchable ratchet with a push-
through 12,5 (1/2'') square drive.
Service MANOSKOP®730/5 to
730/65 Quick ...
... 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.
Technical Data
MANOSKOP®721 Quick
721/5
721/15
721/20
721QR/20
721/30
range
[N‧m]
[ft‧lb]
6–50
5–36
30–150
25–110
40–200
30–150
40–200
30–150
60–300
50–220
square drive shaft
fixed [mm]
usable from both sides [mm]
10 (3/8“)
–
12,5 (1/2“)
–
12,5 (1/2“)
–
12,5 (1/2“)
–
–
12,5 (1/2“)
Length 1) [mm]
338
415
483
483
530
functional length LF[mm]
293
387
418
418
486
weight [g]
915
1310
1490
1250
1710
1) length to centre of square drive

Technical description
5
MANOSKOP®730 Quick
730/5
730a/5
730/10
730a/10
730/12
730a/12
range
[N‧m]
[ft‧lb]
[in‧lb]
6–50
5–36
–
6–50
–
50–440
20–100
15–72,5
–
20–100
–
180–880
25–130
20–95
–
25–130
–
225–1150
insertable square drive [mm]
9×12
9×12
9×12
9×12
14×18
14×18
Length [mm]
315
315
370
370
410
410
functional length LF[mm]
288
288
343
343
390
390
standard extension SF[mm]
17,5
17,5
17,5
17,5
25
25
weight [g]
805
805
965
965
1100
1100
730/20
730a/20
730/40
730/65
730/II/65
range
[N‧m]
[ft‧lb]
[in‧lb]
40–200
30–145
–
40–200
–
350–1750
80–400
60–300
–
130–650
100–480
–
130–650
100–480
–
insertable square drive [mm]
14×18
14×18
14×18
14×18
22×28
Length [mm]
455
455
590
875
897
functional length LF[mm]
435
435
570
855
907
standard extension SF[mm]
25
25
25
25
55
weight [g]
1250
1250
1880
3280
3280

Safety instructions
6
Safety instructions
Intended Purpose
MANOSKOP®721 and 730 Quick 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 Quick 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 non-adherence to these
instructions.
MANOSKOP®721 and 730 Quick 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.
Therefore, avoid overloading the product by more
than 25%.
The MANOSKOP®may not be used as a
hammer. This will lead to injury and damage.
Structural features of the information on
dangers
CAUTION
Notices containing the word CAUTION
warn of a hazardous situation which
may lead to slight or moderate injuries.
Structural features of notices regarding
material and environmental damage
ATTENTION!
These notices warn of a situation
which leads to material or
environmental damage.

Operation
7
Correct torque settings ...
... can be lifesaving in some applications. For this
reason, please note the following points:
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.
If not specified by internal regulations of the
operator (e. g. test equipment monitoring according
to ISO 9000 ff), we recommend an inspection
according to DIN EN ISO 6789, i.e. after approx.
5000 cut-outs or after 12 months, whichever occurs
first. The period (12 months) starts with the initial
commissioning.
If an inspection shows that there is excessive
deviation, the torque wrench will have to be
readjusted (see page 15).
Operation
MANOSKOP®721 and 730 Quick are measuring
instruments and must therefore be treated with
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 25 % 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.

Operation
8
Selecting the inserts and insert tools
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.
Remember that the tool has to be of the correct
type and the right size for the screw or bolt.
Attaching insert tools
721/5, 721/15, 721/20, 721QR/20 Quick
For controlled clockwise tightening, switch the
ratchet to „R” or, for uncontrolled loosening of
joints, to „L”.
Slide the insert over the square drive of the
ratchet until it locates.

Operation
9
721/30 Quick
Check that the square drive is fitted to the right
side of the torque wrench.
If not, push the square drive out through the upper
side to the right side.
For controlled tightening, switch the ratchet to „R”
or, for uncontrolled loosening of joints, to „L”.
Slide the insert over the square drive until it
locates.
Attaching insert tools —730/5 to
730/65 Quick
Insert the insert tool into the internal square drive
on the face of the head of the wrench. The spring-
loaded locking pin of the insert tool will be
pressed down by the insertion groove.
Slide the insert tool in until it comes to the
endstop. Ensure the locking pin locates in the
hole.
Check to see that the insert tool is properly
attached.
To tighten counter clockwise, turn the insert tool
through 180° before attaching to the torque
wrench.

Operation
10
If you are using a ratchet insert tool, set this to the
desired direction by turning the control knob.
Removing insert tools
730/5 to 730/65 Quick
If the tool was attached in the „normal“ position,
press the release button on the underside of the
head of the wrench.
If the tool was attached to the torque wrench
rotated through 180°. Insert a fine punch into the
locating hole in the head of the wrench. Use the
punch to depress the locking pin.
Extract the insert tool.
Setting the torque level
The torque level at which the wrench cuts out is set
by moving the scale against the fixed mark. Always
approach the desired torque setting from a lower
value. Intermediate settings between two marks on
the scale can be estimated.
In order to be able to set the scale, the setting fail-
safe mechanism has to be operated first. Once the
setting fail-safe mechanism is released, the value
set is automatically locked.
Proceed as follows:
Hold down the pressure plate at the grip end to
release the setting lock.
Slide the scale to a torque level lower than the
desired cut-out value.
Slide the scale to the desired cut-out value. The
integrated magnifying glass helps you to position
the scale precisely.

Operation
11
Release the pressure plate again.
The set value is now safely locked.
Check the set value once again. If the set value is
wrong, repeat the process.
Controlled counter clockwise tightening
Due to reasons of accuracy, the torque wrenches
only function in one direction. This is identified by
an arrow and the word "CLICK".
Controlled counter clockwise tightening is possible
by turning the MANOSKOP®over. Exceptions: The
MANOSKOP®721/5, 721/15 and 721/20 Quick
cannot be used for counter clockwise tightening.
Counterclockwise tightening is possible with the
MANOSKOP®721/30 Quick by means of a square
drive which is pushed through.
For controlled counter clockwise tightening using
the MANOSKOP®721/30 Quick in the turned over
position, the square drive must first be pushed
through to the upper side. For controlled counter
clockwise tightening using the MANOSKOP®730/5
to 730/65 Quick, the insert tool has to be rotated
through 180°. Ratchet insert tools also need
switching to „L“ (CCW) for the correct tightening
direction.
Uncontrolled loosening of nuts & bolts
...
... opposite to the tightening direction is possible.
The cut-out mechanism is not placed under load
during this process.
ATTENTION!
Exceeding the limit torque leads to the
risk of the torque wrench becoming
damaged.
Make sure that a limit torque of
approx. 125 % of the maximum scale
value is not exceeded.
Do not loosen any tightly rusted bolts
using the torque wrench.

Operation
12
Using the torque wrench
CAUTION
An incorrect trigger value leads to a
risk of injury.
Make sure that the correct trigger
value is set.
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.
CAUTION
Slipping tools lead to a risk of injury.
Make sure that the tool cannot slip
off the workpiece.
Actuate the MANOSKOP®via the handle only. Grip
the handle centrally. Tighten at a tangent to the
slewing radius and at an angle to the tightening
axis.
Pull steadily and without any interruption,
particularly during the final phase, until you feel a
jerk and hear a click. The torque level set on the
scale has now been reached.
ATTENTION!
Incorrect use of the torque wrench
leads to the risk of material damage.
Under no circumstances continue
tightening the screw connection after
the torque wrench has cut-out.
As soon as the torque wrench has cut out, it is
ready for the next job.

Maintenance
13
Maintenance
The internal mechanisms of the torque wrench are
subject to normal wear and tear under operating
conditions. For this reason, the accuracy of the cut-
out should be checked at regular intervals.
If not specified by internal regulations of the
operator (e. g. test equipment monitoring according
to ISO 9000 ff), we recommend an inspection
according to DIN EN ISO 6789, i.e. after approx.
5000 cut-outs or after 12 months, whichever occurs
first. The period (12 months) starts with the initial
commissioning.
If inspection shows that there is a deviation, the
torque wrench must be adjusted.
The inspection and adjustment must be carried out
in accordance with DIN EN ISO 6789.
Checking the accuracy of the cut-out
value
To check the torque, a torque tester with the right
capacity is required which has an accuracy of ±1 %
of the displayed value or better.
If you have access to such a tester, you may
inspect the MANOSKOP®yourself. Suitable torque
testers are available from STAHLWILLE. It is also
possible for STAHLWILLE to test the MANOSKOP®
for you.
To carry out the test, proceed as follows:
Set the torque wrench to the highest scale
reading.
Operate the torque wrench five times ensuring it
cuts out properly each time.
Important note on the accuracy of the readings:
ATTENTION!
Incorrect use of the torque wrench
leads to the risk of material damage.
Under no circumstances continue
tightening the screw connection after
the torque wrench has cut-out.
In the following example a MANOSKOP®
730/10 Quick is used.
Set the torque wrench to 20 % of the maximum
scale reading.
Use this setting to perform five measurements on
the torque tester.
Use the following formula to make sure that the
values displayed by the torque tester do not
deviate by more than ±4 %.
A=deviation in %
W1=value set on the Manoskop
W2=tester measured value

Maintenance
14
Set the torque wrench to 60 % of the maximum
scale reading.
Use this setting to perform five measurements on
the torque tester.
Use the following formula to make sure that the
values displayed by the torque tester do not
deviate by more than ±4 %.
A=deviation in %
W1=value set on the Manoskop
W2=tester measured value
Set the torque wrench to the highest scale
reading.
Use this setting to perform five measurements on
the torque tester.
Use the following formula to make sure that the
values displayed by the torque tester do not
deviate by more than ±4 %.
A=deviation in %
W1=value set on the Manoskop
W2=tester measured value
If the tests show that there are deviations greater
than the permitted amounts, the wrench will require
readjusting.

Maintenance
15
Adjusting for deviations in cut-out value
You may return your torque wrench to
STAHLWILLE for adjustment. You will then receive
the tool back with a new works calibration
certificate.
You may adjust the torque wrench yourself. In this
case, however, STAHLWILLE‘s accuracy guarantee
is void.
A torque tester of sufficient capacity and accuracy is
required for making readjustments.
For readjustment, each MANOSKOP®is equipped
with two internal adjuster screws.
These are accessible with an Allen key, size 2 mm,
through two holes in the housing.
The screw which is closest to the end of the handle
is primarily for adjusting the lower end of the scale
range.
The screw which is closest to the head is primarily
for adjusting the upper end of the scale range.
Each screw has a minor effect on the adjusting
range of the other screw.
To protect the mechanisms from dirt and moisture,
these two holes are plugged.
To adjust the wrench, you will need the torque
tester and an Allen key, size 2 mm.

Cleaning
16
Proceed as follows:
Remove the two plugs using a sharp object.
Retain the plugs for later use.
To adjust the lower end of the range, insert the
Allen key in the hole nearer to the handle.
To adjust the lower end of the range, insert the
Allen key in the other hole.
Turn the Allen key with great care and very
slowly. Turning in a clockwise direction increases
the cut-out torque level, turning in the other
direction decreases it. The screws will lock in any
position.
Once you have made an adjustment using one
screw, check the effect by testing the cut-out
value on the torque tester.
Repeat the adjustment of one or both screws and
the testing process until the deviation has been
compensated.
Finally, do a thorough test again. Proceed as
described under „Checking the accuracy of the
cut-out value“.
If you cannot achieve adequate correspondence
between the triggering values and the set values in
this way, the triggering mechanism is probably
defective.
Consult STAHLWILLE if this occurs.
Replace the plugs as appropriate to protect the
cut-out mechanism against dirt and damp.
Replacement plugs are available from
STAHLWILLE.
Cleaning
Clean the MANOSKOP®only with white Spirit.
Other chemical substances may damage the plastic
components.

Accessories
17
Accessories
For all models
Inserts for square drives for all usual screw head
types and sizes.
For STAHLWILLE Service
MANOSKOP®730 Quick
Insert tools
ratchet insert tools
square insert tools
open-jaw insert tools
ring insert tools
Open ring insert tools
Torx®insert tools
Bit-holder insert tools
For inspection and readjustment purposes
Mechanical torque testers
Electronic torque testers
Services
repairs
testing and readjusting (incl. accuracy guarantee
and new works calibration certificate)
Training courses
Service portal: service.stahlwille.de
Disposal
When the tool finally has to be disposed of, please
observe your local environmental protection laws.
The handle is made of PPC.

STAHLWILLE Eduard Wille GmbH & Co. KG ‧ Lindenallee 27 ‧ 42349 Wuppertal ‧ Germany
Tel.: [phone] ‧ Fax: [phone] ‧ sup[email protected] ‧ www.stahlwille.de