Caution: When you do maintenance or repair on CNC machines and their components, you must always follow basic safety precautions. This decreases the risk of injury and mechanical damage.
Danger: Before beginning any work inside the control cabinet the High Voltage indicator light on the 320V Power Supply / Vector Drive must have been off for at least 5 minutes.
Some service procedures can be dangerous or life-threatening. DO NOT attempt a procedure that you do not fully understand. If you have any doubts about doing a procedure contact your Haas Factory Outlet (HFO) and schedule a service visit.
This procedure shows you how to replace the MCD Relay PCB.
Note: This PCB is also used to control a chain style SMTC, the steady rest, and the APL. In this procedure we will refer to this PCB as MCD Relay PCB.
This procedure applies to these parts: