7: TROUBLESHOOTING
©Tormach® 2021
Specifications subject to change without notice.
Page 61 UM10753: 8L Operator's Manual (Version 0321B)
For the most recent version, see tormach.com/support
7.12.2 The Coolant Pump Won't Run
Cause: Fuse F1 on the machine control board is blown.
Probability How-To Steps Need More?
Medium
1. Unplug the coolant pump power cord and examine it for damage.
2. Use a digital multimeter to verify the motor’s winding-to-winding and
winding-to-ground resistances.
If any winding-to-winding resistance measurement is a short (near zero
resistance) or an open circuit or if the winding-to-ground resistance is a
short, the coolant pump must be replaced.
3. Replace the fuse with a 3A slow-blow fuse, power on and reset the
machine, and select the Coolant button in PathPilot.
Use a digital multimeter to test the power at the XS2 receptacle.
If the fuse blows again with the pump plugged in, replace the pump.
If the coolant pump shorts, the 3 A,
slow-blow, F1 flood coolant fuse on
the ECM1 control board blows before
CB3 trips.
Cause: The coolant pump isn't plugged in to an outlet.
Probability How-To Steps Need More?
Low
Examine the connection at the outlet.
It's possible that the power cord could
become loose from movement.
To Next Page
Loading...