To the user
In order to use the torque wrench
properly and safely please read the
Instructions before operation.If there are
any questions,please contact a Tohnichi
authorized distributor or Tohnichi sales
office. Keep these Operating Instruc-
tions for future use.
F Model
OPERATING INSTRUCTION
QF Model
CF Model
1Warnings
2Precautions
3Precautions for use
4Specifications
5Operating procedure
2
3
4
5
1
Don't use this wrench except for
tight-ening purposes.
This is a torque wrench for bolt
tightening only.
Make sure there is no oil, or grease
on the grip.
A slip of the hand while tightening,
may cause an accident or injury.
Check 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.
Make sure when moving the
ratchet lever that it is in its correct
position.(QF type)
If the ratchet lever is only moved half
way, the ratchet will be damaged,
and that will cause an accident or
injury.
When 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.
Contents
1Warnings
1
6
Don't use a pipe to extend handle.
This will cause damage to the torque
wrench and create an accuracy
error. (Fig.1)
2Precautions
1
Don'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.
2
2
Don't use the torque wrench beyond
the maximum torque setting.
This will cause damage or injury.
3
Don't make the square drive small-
er by using an adapter.
This will create insufficient strength
and cause an accident or injury.
4
Don'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.
5
Don'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.
6
Don'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 acci-
dent or injury.
7
Be 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.
8
Don't stand the torque wrench on end.
If may fall or drop,and cause an
accident or injury.
3Precautions for use
1Confirm that the torque is set according to
the correct unit of measure before using.
(kgfcm, kgf m, Nm, etc)
3
8
9
Use 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 Tohnichi parts.
2Don'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.
3Use the correct socket that fits the hex
size of the bolts,you are using.
If you use an incorrect socket,this may cause
an accident or injury.
4Measurement precision is affected by the
grip position.
A mark is provided on the handle surface to
indicate the effective length. (Fig.2)
5Make sure there is enough clearance for
your hand and elbow before using to
prevent injury.
6Don'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.
7Perform regular inspections for function
and accuracy.
Periodical inspections are essential to insure
the torque wrench is in optimal condition thus
preventing injury.
10
When store it, make sure the needle
is free.
Make sure the needle dose not always contact
both the scale plate and body(Fig.5).
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.
Remove any dirt such as dust,mud,oil and
water,etc.after each use and before storing
torque wrench.
Fig.1 Fig.2
11
10
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.
12
13
4
Fig.3 Fig.5
Fig.4
Apply force to the center of handle to float the
handle on a pivoting pin, which concentrates
the total force to the effective length. (Fig4)
Hold the needle hardly may cause a problem.
5
4Specications
6
5Operating Procedure
1
2
3
4
5
6
1
2
3
4
SF/F/QF model operating instruction
SF40CN SF12N F23N F560N QF60N
QF560N
1Make sure that the main pointer stays at
0 on the scale plate.
2Insert the square drive of the wrench into
the required sockets.
3Apply the socket on to bolt.
4Apply force to the center of the handle
and measure the torque value while
watching the scale plate.
5For models with a memory pointer,
change the lever position based on the
measuring direction.
6For QF models, make sure that the
position of the measuring direction. (Fig.6)
Operating instructions for F/QF models
1Attach the extension handle to the main
wrench.
Take off the fix screw on the main wrench.
Insert the extension handle and tighten
the fix screw to prevent loosening.
2Confirm that the main pointer is aligened
with the 0 position.
3Insert the squere drive of the wrench into
the required socket.
4Apply the socket on to a bolt head or nut.
Fig.6
Fig.7
0120-169-121
5
6
1
2
3
4
5Apply force to the center of the handle
and measure the torque value while
watching the scale plate.
6For QF models, make sure that the
position of the rachet lever is correct
based on the measuring direction. (Fig.6)
Operating instructions for CSF CF models
1Make sure that the main pointer stays at
'0' on the scale plate.
2Attach the required interchangeable head
(optional) to the torque wrench. (Fig.7)
3Apply a head, socket or Allen-key on to a
bolt head or nut.
4Grip the center of the handle and apply
force gradually in measuring direction
while watching the scale plate.
/
