Danfoss
FT1330 Crimp Machine Operator’s Manual
10 | © Danfoss FT1330 Crimp Machine Operator’s Manual | 2023.02.
AQ439269212774en-000101
Setting the Encoder
By adjusting the encoder from “000” to “999”, the forward movement of the crimp die cage into the crimp ring can be varied by one inch.
This is how the crimp diameter is adjusted. By allowing the crimp die cage to advance further into the crimp ring (by choosing a larger
encoder setting) the crimp diameter will be reduced. That is: an increase in the encoder setting will reduce the crimp diameter. Choosing a
smaller encoder setting will produce a larger crimp diameter.
The ratio of the encoder setting to the crimp diameter is 2 to 1. An encoder setting change of 2 will change the diameter “.001”.
Set the encoder to 300. Crimp an assembly and record the average diameter of the 4 flats. Subtract the desired crimp diameter from the
recorded average actual diameter. Multiply this figure by 2 and add the result to 300. This new encoder setting should be very close to the
correct setting. A final measurement must be made and the above procedure must be repeated if necessary.
Example:
The machine is setup with the FT1330-200-8 crimp die cage and we wish to crimp a fitting onto FC211-16 hose. Following the steps just
described, the cylinder stopped when the encoder was set to 300. After crimping the first fitting, the socket diameter measured 1.663
inches. The correct crimp diameter, according to the current crimp specification is 1.481 - 1.491. By subtracting 1.486 (the mean crimp
diameter) from 1.663 we find that our fitting is under-crimped (oversize) .177 inches (1.663 - 1.486 = .177). Since each .001 change in crimp
diameter requires a change of 2 on the encoder setting, we can determine how much the encoder must be adjusted by multiplying .177
by 2 (.177 x 2 = .354). Since our example fitting was not crimped enough (under-crimped) we must add 354 to the previous encoder
setting (300) to determine the corrected encoder setting (354 + 300 = 654). With the encoder now set at 654, recrimping the same fitting
should provide a crimp diameter within the required limits of 1.481 - 1.491. If another small adjustment is required, it must be made using
the same procedure as just outlined in the example.
When the correct encoder setting has been determined, record this “Micro Setting”. The next time you crimp that particular style and size
of hose, you will be able to immediately set the encoder to the previously determined setting and your first crimp should be to the correct
diameter. As always, make sure to check the first assembly for proper crimp diameter.
