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INFLEXION
TM
TP-4976401-C
4-9
October 2018
Figure 4-2 Status LEDs on Base Board
PROBLEM
CAUSE
EVIDENCE
Actuator is not functioning at all.
Blown fuse FU1 or FU2 on
circuit board.
No status LEDs are lit on the
control board.
MAST UP/DOWN switch in
remote Operator Station is
defective.
Neither the “UP INPUT” nor the
“DOWN INPUT” status LEDs
light when the corresponding
switch is activated.
Actuator is defective.
Contact Customer Service.
Actuator is not functioning
properly in the UP direction.
MAST 90° limit switch is
misadjusted or defective.
The “NOT 90 DEG” status LED
is not lighted.
MAST UP switch in Remote
Operator Station is defective.
The “UP INPUT” status LED
does not light when the switch is
activated.
Actuator is not functioning
properly in the DOWN direction
Magnetic (MAST RETRACTED)
limit switch is misadjusted or is
defective.
The “NOT 90 DEG.” Status LED
is not lighted.
MAST DOWN switch in remote
Operator Station is defective.
The “DOWN INPUT” status LED
does not light when the switch is
activated.
Table 4-1 Troubleshooting Table