LAST UPDATED: 05/29/2019
320V Power Supply (MMPS) - Fuse Replacement
AD0446
Introduction
This procedure will show you how to check and replace the fuse 320V Power Supply (MMPS).
Compatibility
Machines equipped with 320V Power Supply (32-5566A).
This Procedure Applies to the Following Parts:
• 93-3039 320V Power Supply (MMPS) 40A Fuse
Electrical Safety
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.
• Set the main circuit breaker to the
[OFF]
position.
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.
320V Power Supply (MMPS) - Fuse Replacement - AD0446
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