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 The introduction on the undercarriage servicing market of the new electronical wrench CEM 7000 is the result of the berco know-how and lasting experience in the field of loosening and tightening track shoe bolts.
The operator can select, set and read the data and working system on the control panel, placed on the front of the machine: this new device makes the CEM 7000 extremely versatile and easy to use.
Two working systems are available: the first allows to tighten the shoes according to the final output torque on the bolts only (such a method is less and less used owing to the lack of precision); the other one, according to O.E.M. requirements, joints a pre-torque with the final angle and grants the correct and constant fastening of the bolts.
After setting the parameters, the electronic controls, actuating on a cinematic chain, assure the fulfillment of the required results.
The totoally new conceived cinematic chain is mainly composed of:
- brushless electric motor with high torque and
two rotation directions
- reduction unit (epicycloide gear type)
- front claw clutch driven by electromagnet
- loading cell active in either direction of the socket shaft.
The remarkable high value of the maximum couple obtained - 7000 Nm - places this model at the top level, suitable for the most recent large-size track vehicles; same accuracy and safety are granted on small-size bolts and well.
Two rotation speeds are available:
- slow for final tightening or for the first loosening
- fast for first tightening and for the total removal of the bolt
The operator can switch from one to the other speed by means of two push buttons placed on the guide handle of the socket shaft. Both pulling system for positioning the socket shaft on the bolt and movement of the wrench carriage on the rails are based on Berco well experienced knoledge already tested on our previous mechanical wrench models. Available as extra outfit, a mechanical device to fix the sicket shaft in low position to improve the safety standard; a level placed on the guide handle easily operates the device.
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