Calibration Procedures & Adjustment –
Power Crimp® 707 Calibration Procedure
NOTE: Check calibration after every 100 crimps.
1. Before initiating calibration procedure, cycle crimper 5 times. To cycle, dial in a setting of 2.00 and run crimper
down to shutoff with no die set loaded.
2. Install “733” die set to calibrate the machine using any ½” 8G MegaCrimp coupling example: G25100-0808.
3. Set digital readout setting to 5.20. (Rotating knob on top of switch box clockwise will increase the number;
counterclockwise will decrease the number.
4. When changing the setting, always move to a higher number then down to the desired setting. Example: To
change from 5.00 to 5.20, move dial up to 6.00 then down to 5.20.) The readout figures may jump a number; i.e.
5.20 to 5.19 or 5.21. This will not affect the crimp OD.
5. Insert coupling to crimp approximately 1/8” below top of die and install die cone. (See photo 1).
6. Slide the die cone assembly under the ram until it stops against back locating pins and push the crimp button and
hold. Release the button immediately when the pump stops.
7. Remove coupling and measure crimp diameter, which should measure 1.000”±.003”. To properly measure crimp
diameter, refer to the Hose Assembly Guide instructions. If coupling is not within 1.000” (± .003”) of the crimp
diameter, adjust actuator rod (See photo 2).
8. To increase crimp OD – Hold the 1-1/16” actuator rod while loosening the 3/4” lock nut. Rotate the actuator rod
clockwise (one full turn of the actuator rod will change crimp diameter approximately 0.024”). Then tighten the
lock nut down. CAUTION: Do not over tighten lock nut.
9. To decrease crimp OD – Hold 1-1/16” actuator rod while loosening 3/4” lock nut. Rotate actuator rod counter
clockwise (One full turn of actuator rod is approximately 0.024” crimp OD) then tighten lock-nut down. CAUTION
– Do not over tighten lock-nut.
10. Repeat steps 3 through 7 to verify correct crimp OD.
Photo 1 CLOCKWISE Photo 2
Adjustment Procedure
Should the actual crimp diameter NOT be within the tolerance specified in the Crimp Data Charts, check the calibration of
the crimper. If the calibration is correct, a slight adjustment of the digital readout may be necessary. To obtain a smaller
crimp diameter, change the digital readout to a smaller number, or vice versa.
Changing the digital readout by .05 (Example: 5.50 to 5.55) will change the crimp diameter by .001”.
See the PC 707 Safety and Operating Manual #428-7300 for detailed procedures.
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