Installation and Maintenance Manual: RLVAC
Published February 2022
59
7 Troubleshooting and Repair
Bastian Solutions Conveyor encourages using the following troubleshooting techniques before contacting
a Bastian Solutions Conveyor representative as these are the same techniques used by our field service
engineers. To assist in data collection, Bastian Solutions Conveyor asks that any issues that arise be
recorded in a log, with the mark number, a description of the issue, and the steps taken to resolve the
issue. In case of a failure with unknown cause, do not discard broken or defective parts without checking
with our field service team, since the parts may be needed for warranty claims information or in
troubleshooting the root cause of the failure.
Table 8: Troubleshooting Guide
ERROR
CAUSE
ACTION
Unusual motor
wobble
Wobble at the back of the motor
is < 0.25”.
This movement in the motor is acceptable. There is no
physical damage to the conveyor section.
Wobble at the back of the motor
is > 0.25”.
The drive pulley shaft is bent out of tolerance. Replace
the drive pulley shaft.
Loud “hum” from
the motor. Motor
doesn’t run or
runs slowly
Missing phase connection,
incorrect winding configuration or
other incorrect motor wiring
Verify motor wiring
Motor is stalled
Check belt run for binding or severe overload
Verify VFD current settings match motor nameplate
FLA
Verify motor winding configuration matches supply
voltage
Scraping noises
The bearing shields have been
displaced during
installation/maintenance
Re-adjust bearing shield or order replacement bearing
(based on severity of sound and product application).
Physical interference between
moving parts
Check for location of interference and adjust part
accordingly.
Loud screech
from tail
Tail guards rubbing on conveying
rollers
Re-adjust tail guards for adequate clearance, until
they no longer rub.
Replace any conveying rollers that are out of round or
wobbling by more than 1/8”