QRSP Model
SP2-N Model
OPERATING INSTRUCTION
SP2-N-MH Model
In order to use the torque wrench properly
and safely, please read this instructions before
operation. If any questions, please contact to
Tohnichi authorized distributor or Tohnichi office.
Keep this operating instruction for future use.
SP2-H Model
1Don't use this wrench except for
tightening purposes.
This is a torque wrench for bolt tightening
only.
1Warnings
1
1Warnings
2Precautions
3Precautions for use
4How to set a torque
5Operating procedure
6Specifications
Contents
2Don't use this wrench for loosening.
Excessive torque may be applied while
loosening, which will cause damage to
the torque driver and could result in an
accident or injury.
3Make sure there is not oil, or grease
on the grip.
A slip of the hand while tightening, may
cause an accident or injury.
4Check for cracks, scratches and rust.
These will cause damage to the wrench
and may result in an injury. If such
conditions exist, have a functional test
performed and repair if necessary.
5When you use this wrench in a high
location, prepare to prevent dropping
the wrench.
If you drop the torque wrench or socket, that
may cause a serious accident or injury.
6Don't use a pipe to extend handle.
This will cause damage to the torque
wrench and create an accuracy error.
(Fig.1)
2
1Don't apply momentum with your own
weight or use a jerking motion, when
you pull the torque wrench.
This will damage the torque wrench and
may cause the wrench to come off of the
bolt. Resulting in an accident or injury.
2Don't use the torque wrench beyond
the maximum torque setting.
This will cause damage or injury.
3Don't use the torque wrench if it is
missing a pin or scale plate, etc.
Ask a repair shop or our company to
inspect the torque wrench and repair it
before using.
4Don't modify the torque wrench.
Modifications will weaken the torque
wrench. This may cause errors in
accuracy, as well as, cause an accident
or injury.
5Don't drop the torque wrench or apply
a strong shock or jolt.
This will cause damage or deformation
as well as decrease the accuracy and
durability, which may cause an accident
or injury.
6Be aware of your surroundings when
handling a large capacity torque
wrench.
Turning or walking while holding a large
torque wrench may cause accident or
injury, if the user is not alert.
7Don't stand the torque wrench on end.
If may fall or drop, and cause an accident
or injury.
8Use only parts designated by Tohnichi
for repair of the torque wrench.
Ask the place of purchase or our
company for assistance when you repair,
and use only Tohnich parts.
2Precautions
3
3Precautions for use
1Mark sure the torque wrench is set
correctly before using.
2Confirm that the torque is set
according to the correct unit of
measure before using.
(kgfcm, kgfm, Nm, etc.)
3Don't use torque wrench in fresh
water or sea water.
The inside mechanism will go bad and
cause an accident or injury. If you drop in
water or sea water, get it checked out or
repaired.
4Measurement precision is affected by
the grip position.
A mark is provided on the handle surface
to indicate the effective length. (Fig.2)
5Stop tightening when you feel a click.
Applying more torque beyond the click
will lead to overtorquing.
6Make sure there is enough clearance
for your hand and elbow before using
to prevent injury.
7Don't use the torque wrench as a
hammer.
If there's a deformation on the beam, an
operation failure could result and cause
a decrease in the accuracy of the torque
wrench.
Fig.1
4
8Perform regular inspections for
function and accuracy.
Periodical inspections are essential to
insure the torque wrench is in optimal
condition thus preventing injury.
9Loading direction.
The loading direction must be at right
angles to the torque wrench (tolerance :
15 ) (Fig.3). This tolerance applies to
both horizontal and vertical deviation.
10
Remove any dirt such as dust, mud,
oil and water, etc. after each use and
before storing torque wrench.
11
When storing the torque wrench for
a long time, apply rustproof oil, and
keep in a dry place.
If improperly stored, the accuracy and
durability will decrease rapidly.
Store the wrench with torque graduation
set to the lowest setting.
Fig.2
Fig.3
45
4How to set a torque
QRSP Series
Remove the cap by turning it counterclockwise
with the Thrust Ring Tool.
Loosen the Thrust Ring Screw (hex set
screw) by turning it counterclockwise with
a hex bit.
Turn the Thrust Ring with the Thrust Ring
Tool to set a torque.
Use a tester (DOTE3-G,TCC2-G or TF) for
torque setting.
Fasten the Thrust Ring Screw by turning it
clockwise with the hex bit.
Fasten the Screw with the specified torque,
then lock it. Use a torque driver (Model
LTD or RTD)for fastening the Screw.
Fasten the cap by turning a clockwise with
the Thrust Ring Tool.
Fig.4
SP2-N SP2-N-MH SP2-H SP2-H-MH Series
1. Insert a Adjusting tool into a adjusting
hole.
Note : Adjusting tool is not standard
accessory.
2. Set torque by Adjusting tool, with
torque wrench tester, DOTE3-G,TCC2-G
or TF models.
Turn the Adjusting tool clockwise to add
torque value, and turn counter-clockwise
to reduce torque value.
No need lock after toeque set.
6
5Operating Procedure
SP2-NSP2-N-MH Series
Check if the wrench opening fits to the
size of bolts or nuts to be tightened.
(Select the right wrench for bolts or nuts.)
Set a required torque. (Use the wrench as
it is if the torque is set beforehand.)
Apply the wrench head around a bolt head
or nut.
Fig.5
For torque set and calibration, use Tohnichi torque wrench tester.
For torque check, use Tohnichi torque checker.
7
QRSP Series
Check if the wrench opening fits to the
size of bolts or nuts to be tightened.
(Select the right wrench for bolts or nuts.)
Set a required torque. (Use the wrench as
it is if the torque is set beforehand.)
Apply the wrench head around a bolt head
or nut.
Verify that the direction of arrow on the
wrench aligns the tightening direction.
Align a corner of the nut with the ratchet
pawl. (Fig.7)
Press the pawl strongly against the nut or
bolt to lock it into the ratchet wheel.
Pull the wrench clockwise to tighten bolts
or nuts.(Fig.8)
For left threaded bolts or nub use the
wrench upside down.
Ratchet type wrench is very effective in a
confined space.(Fig.9)
Stop tightening operation when a click is
heard.
Open the pawl when the wrench is
removed from the bolts or nuts.(Fig.10)
Fig.6
Turn the torque wrench clockwise
( direction on the tube) to fasten the
bolt.When you turn it counterclockwise
(opposite direction of ), you don't hear
a "click".
The use for tightening the left hand
screw or loosening the bolt may cause a
failure.
For left threaded bolts or nuts use the
wrench upside down.
Stop tightening operation when a click is
heard.
8
Fig.7 Fig.8 Fig.9
Fig.10
SP2-HSP2-H-MH Series
Please confilm before purchasing that
your target bolt to distance is wider
enough than the minimum piping pitch of
the SP2-H.
(If your target bolt to bolt distance is
narrower than the minimum piping pitch of
the SP2-H, SP2-H may hit to the next bolt
and cannot be used for tightening.)
Check if the wrench opening fits to the
size of bolts or nuts to be tightened.
(Select the right wrench for bolts or nuts.)
Set a required torque.(Use the wrench as
it is if the torque is set beforehand.)
Apply the wrench head around a bolt head
or nut.
Turn the torque wrench clockwise
( direction on the tube) to fasten the
bolt.When you turn it counterclockwise
(opposite direction of ), you don't hear
a "click".
The use for tightening the left hand
screw or loosening the bolt may cause a
failure.
For left threaded bolts or nuts use the
wrench upside down.
Stop tightening operation when a click is
heard.
Fig.11 Fig.12
6Specifications
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