Before crimping a hose assembly, check calibration.
Calibration is the proper relationship between a
setting and the crimp diameter. It should be
checked at least monthly, possibly weekly or daily, if
crimper has been used heavily or abused. Mark the
drilling location using the mounting holes as a guide
(see illustration below).
Place the MC33 die set into the die cone and install
pressure plate.
Turn the knob to a setting of 245.
Insert an 8G MegaCrimp® coupling into the die set.
Complete the crimp.
Remove the coupling and measure the crimp
diameter, which should measure 1000” +/- .003”
To properly measure crimp diameter, refer to the
Measuring and Adjustment Diameter sections of
this manual.
If diameter is within range, no adjustment is
necessary. If the crimp diameter is
not
within this
ranger the crimper must be calibrated.
To get a larger or smaller number adjust accordingly
For every .001” change in crimp diameter, change
the setting by .002. For example, to increase the
crimp diameter by .002”, increase your setting
from 245-247.
T
urn the knob to this new setting and crimp a new
coupling. After the correct diameter is achieved, pull
the plastic cap from the
Loosen the two set screws in the brass knob 1/4 to
1/2 turn using a .05” Allen wrench.
Turn the brass knob either clockwise or counter
clockwise to get the setting back to 245.
Tighten the set screws
and replace the plastic
cap. Crimper is
now calibrated.
Note: Rotating the knob on front of switch box
clockwise will increase the number; counter
clockwise will decrease the number. When
changing the setting, always moveto a higher
number then down to the desired setting. (Ex:
To change from 200- 245, move dial up to 300
then down to 245.)
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6.
CALIBRATION PROCEDURE
MOBILE CRIMP 4-20 SAFETY AND OPERATING MANUAL
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