Stacker Control Switch.
When you operated the stacker control switch in both directions, you
assumed the switch operated correctly and continued to troubleshoot the
hydraulic problem. Now, assume the switch did not function correctly and
troubleshoot the stacker electrical system.
o Set the MASTER switch to the OFF position and disconnect the
electrical cable at the stacker control switch box.
multimeter, test the continuity of the UP push button between
socket A and B and test the continuity of