Model 1700 / 1750 Rotary Platform Abraser
11
Operating Instructions ver. 1.0
p/n 135505
INSTRUMENT PREPARATION
Taber Abrading Wheels
Selecting Wheels
– Genuine Taber abrasive
wheels are available in a variety of standardized
formulations. The choice of which abrasive wheel to
use is dependent on the material that is being
evaluated. Many test methods specify which
Genuine Taber abrasive wheel should be used. If
you are not following an established test method,
trial and error is suggested to help determine the
appropriate abrasive wheel.
It is often the case that materials degrade faster
with the more demanding conditions of accelerated
testing. As a basic rule of thumb, a minimum
number of test cycles should be completed before
the end point occurs (i.e. 300 cycles). Otherwise,
the abrasive wheel may be too aggressive or the
load is too great.
For additional information, contact Taber or an
authorized distributor.
Mounting Wheels
– Model 1700 / 1750 features
the Quick Release Mounting Hub. An expanding
collet hub design with push-button operation
permits quick wheel mounting. A spring loaded,
beveled retaining nut provides a positive locking
force on the hub retaining lip making certain the
wheels remain securely fastened until disengaged.
To mount a wheel, press the push button located at
the end of the auxiliary weight mount. This will
release the beveled retaining nut enabling the collet
to contract. With the label facing toward the center
of the specimen holder, carefully slide the wheel all
the way onto the mounting hub. Release the push
button. The hub retaining lip will secure the wheel
until it is disengaged.
Genuine Taber abrading wheels are supplied in
pairs. A close inspection of the wheel labels will
show that one is marked “Left Hand”, while the
other is “Right Hand”. The wheel labels should be
mounted facing inward (toward each other).
NOTE:
H-18 and H-22 Calibrade wheels have a
tendency to wear the Quick Release Collets Wheel
collets. Collets should be routinely replaced when they no
longer secure the wheels or excessive play is noted. Order
Quick Release Wheel / Hub Collet Replacement Kit
(#133338).
NOTE:
Taber Industries offers a Wheel / Hub Kit with a
Locking Nut that can be used in place of the Quick
Release Wheel / Hub Kit. This kit is suggested for
companies that perform a significant number of tests with
the H-18 or H-22 Calibrade wheels. Order Wheel / Hub Kit
with Locking Nut (#135934).
NOTE:
Before preparing the wheels for testing, check
their condition and expiration date (if applicable). Shelf life
is dependent on proper storage conditions (temperature
23° C ± 2° C, relative humidity 50% ± 5%). When not in
use, store abrading wheels in their original container.
NOTE:
Periodic cleaning of the mounting hub and flange
with the S-12 brush is recommended to prevent the
accumulation of particles and other debris.
Wheel Loading (Auxiliary Weights)
Auxiliary weights can be attached to the pivoted
arms to increase the force the wheel is pressed
against the specimen, exclusive of the mass of the
wheel itself. In addition to the mass of the abrading
arm, auxiliary weights are included to provide
standard wheel loads of 500 or 1000 grams.
To operate with a load of 250 gram, no
additional weights are used.
