Probable
causes |
Actions |
Belt
is loose or broken |
Tighten
or replace belt |
Fuse
for power or circuit blown
out |
Check
ampere capacity and replace
fuse |
Needle
position signal or one-rotation signal is not
detected |
Adjust
needle position with wrench so that needle
position LED come on |
Frame
limit switch is actuated |
Move
frame to appropriate
position |
Abnormality
warning lamp in drive unit is
on |
Clean
air filter |
Incomplete
contact of connectors in control
box |
Securely
couple connectors |
Incomplete
contact of connectors in main shaft drive motor
control box |
Securely
couple
connectors |