The LT40 AC up/down motor is very hot when working
You may need to check and adjust the brake of the motor. The distance (gap) should be 0.3 mm
While cutting hardwood (big diameters) at low pace, power feed stops
Please change settings of the Altivar, UFr to 30.
What problems with the power feed operation can arise in 380V AC sawmills?
The power feed operation (forward/backward saw head movement) in Wood-Mizer sawmills is controlled by an Altivar 28 speed controller. To activate this operation, you should either turn the key switch to the (2) position or start the motor and turn the key to the (1) position. Possible problems:
What can be the cause of LT40HDE15's incorrect up/down operation?
First check the up/down motor brushes. Then, if your machine was manufactured after 1992, make sure that the drum switch is in a proper condition. Inspect also the circuit breaker located in the control panel.
The power feed circuit board cannot be used in old sawmills.
The new power feed circuit board is equipped with an additional thin red wire which should be connected to the terminal # 2 of the power feed switch.