1-15-96 96-8100
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TABLE OF CONTENTS
HAAS AUTOMATION, INC.
TROUBLESHOOTING
SERVICE
MANUAL
VF-SERIES
l Check for pressure switch failure (refer to "Testing the Coolant Pressure Switch" section), and replace if necessary.
Check "LO CLNT" bit in the diagnostics display (0 = pressure on, 1= pressure off).
l If the filter has been cleaned or the coolant line has been disconnected from the pump or check valve assembly, prime
the system as described in "Priming TSC System" section.
6.3 COOLANT TIP WEAR
´ Coolant tip is wearing quickly and needs frequent replacement.
l Check the filtration system and that the coolant is not contaminated.
l Check pre-charge pressure (refer to the TSC Pressure Regulator Adjustment" section). Heavy wear will occur if this
pressure is too high.
6.4 PRE-CHARGE FAILURE
´ Alarm 198, "Precharge Failure"
NOTE: This alarm can only applies to the TSC system.
l Check for broken or disconnected pre-charge air line, and replace if necessary.
l Check if the "Tool Clamped" limit switch is sticking, and replace if necessary.
l Check the "Tool Clamped" limit switch adjustment (refer to "Tool Clamp/Unclamp Switch Adjustment").
l Check for low pre-charge pressure (refer to "Pressure Regulator Adjustment" section).
l Check pre-charge solenoid for proper operation.
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