How to Use a Torque Multiplier as a beginner
by Pooja Late so cutA torque
multiplier is an invaluable tool for a variety of applications. Ever heard
the old maxim, “Work smart, not hard”? From experience, this saying is
definitely true when it comes to tightening and loosening heavy-duty bolts and
other fasteners. Under normal circumstances, it can be grueling work, requiring
various amounts of elbow grease. You have to tighten the bolt sufficiently to
keep parts from moving and remove fasteners after they have been in prolonged
contact with various environmental conditions. This is where torque multipliers come in handy, as
they provide extra power to turn bolts, nuts or screws. The gear train gives
the operator an advantage because it increases the gear ratio of the tool to
which it’s attached.
Whether you are a beginning Do-It-Yourself enthusiast
or a seasoned professional, a torque multiplier is an invaluable addition to
your toolkit because it provides the operator with extra power. In order to use
a torque multiplier safely and
efficiently, however, it is critical that you select the right type of
multiplier for your work and follow the proper steps for use.
Types of Torque
Multipliers: Manual, Electric, and Pneumatic
There are three main types of torque multipliers: manual, electric, and pneumatic. To determine
which type you should use, consider the demands of the job. For example, if
compressed air and electrical power are not readily available, then a manual
hand multiplier would be the most appropriate choice. It all hinges on your
specific needs, so here’s a rundown of the three types:
A manual torque
multiplier is engineered for precision tightening and loosening of
heavy-duty fastening applications such as tightening large industrial bolts for
a gearbox assembly. The desired torque is reached when the multiplier stops
delivering torque. As its name suggests, a manual torque multiplier is hand-operated. Therefore, this kind of tool is
typically lightweight, portable, and well-suited to job sites where there is no
electricity.
An electric
torque multiplier is controlled with a microprocessor so its torque
corresponds to a built-in controller. It’s best suited for continuous
tightening and loosening of heavy-duty bolts and fastening applications.
Generally, an electric torque multiplier
should be inspected by a service professional once a year or after
approximately 1,000 hours of use.
A pneumatic
torque multiplier is a more powerful variation of the electric multiplier.
It uses compressed air for power and provides precise tightening and loosening
of heavy-duty fastening connections. This type of multiplier operates with a
smooth, continuous rotation and is quite easy to use.
Once you’ve selected the appropriate torque multiplier for the job, it’s
time to get to work. But remember, to get the most out of your multiplier, you
need to know how to operate it properly—and safely.
How to Use a Torque Multiplier
All three types of multipliers are designed to make
fastening and loosening easier. If used correctly, that is what they will do,
but improper use can lead to errors and danger. Regardless of which tool you
choose, always read the manufacturer’s guidelines or instructions before use.
Doing so will save you time, trouble and very possibly, injury.
·
Review the torque
multiplication factor for the individual model of torque multiplier, then set the wrench based on these
specifications. For example, if the desired torque output is 400 lbf.ft and the
multiplication factor for the multiplier is 4:1, then you would set the wrench
to a torque input of 100 lbf.ft. Make
sure you don’t exceed the maximum input torque.
·
Assemble the
socket, “O” ring, and retaining pin.
·
Do not use an
extra-long extension or socket.
·
Place the
multiplier on the fastener.
·
Make sure the
multiplier rotates in the required direction.
·
Check to ensure
the wrench also rotates in the correct direction, then place it on the
multiplier.
·
Choose a suitable
reaction point.
·
Tighten the
multiplier until you hear a “click.” This indicates the multiplier is now locked
on and ready for use.
·
Don’t strike the
anti-wind-up ratchet.
·
To release the
wind-up, follow this sequence:
Replace the wrench.
Load the torque wrench.
Reverse the direction of the anti-wind-up ratchet.
Be sure to release the wind-up in a safe and controlled
manner.
To use a manual torque multiplier, follow these steps:
Author’s Bio
Linus June looks at how to use Torque Multiplier as a beginner and the various types. He explained
how all three types of multipliers are designed to make fastening and loosening
easier
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Created on May 18th 2018 01:06. Viewed 489 times.