Troubleshooting - Park Tool PRS-33 Manual Del Usuario

TROUBLESHOOTING

US
SYMPTOM
Carriage assembly makes no noise
and will not go up or down
Motor runs but carriage assembly
does not go up and/or down
Chain slaps against upright
Carriage assembly is slow to
change directions
Carriage assembly "drops" slightly
when traveling down
Carriage assembly vibrates slightly
when traveling up or down
Motor in carriage assembly is slow
and sounds labored
Ticking noise from under cover on
carriage assembly
Work tray is loose
Upright leans when stand is in use
IMPORTANT NOTES:
ALWAYS UNPLUG PRS-33 FROM ELECTRICAL OUTLET BEFORE ANY ADJUSTMENT, MAINTENANCE OR
REPAIR TASKS ARE PERFORMED. NEVER OPERATE THE PRS-33 WITHOUT THE COVER INSTALLED ON THE
CARRIAGE ASSEMBLY.
POSSIBLE CAUSES
• Power supply not plugged into electrical outlet
• Power cord not plugged into power supply
• Power supply not plugged into power terminal on
carriage assembly
• Directional switch on carriage assembly is in the
neutral position
• Terminals in the motor enclosure are not secure
• Power supply has malfunctioned
• Carriage is pressing against a limit or obstruction
• Carriage has moved up or down beyond its
usable range
• Gears and cogs in carriage assembly are not
moving freely
• Quick release and brake block on carriage assembly
is secured
• Poor connection between coupling connecting motor
to driveshaft
Chain is too loose
Chain is too loose
Chain is too loose
Bearing wear
Chain is too tight
Chain is too tight
Bolts under work tray are loose
• Fasteners connecting upright, upright supports and
base not tight
• Base is not level
PRS-33 Power Lift
CORRECTIVE ACTION
Repair Stand
• Plug power supply into electrical outlet
• Plug power cord into power supply
• Plug power supply into power terminal on carriage
assembly
• Push directional switch to the up or down position
• Push terminals together
• Replace power supply
• Reverse direction of carriage assembly and remove
obstruction
• Reverse direction of carriage assembly
• Remove obstruction in gears or cogs in carriage
assembly
• Loosen quick release lever to release brake block
• Tighten set screws in coupling
Adjust chain tensioning assembly to tighten chain
Adjust chain tensioning assembly to tighten chain
Adjust chain tensioning assembly to tighten chain
Adjust the three set screws on the carraige assembly
(tray side)
Adjust chain tensioning assembly to loosen chain
Adjust chain tensioning assembly to loosen chain
Tighten four bolts under work tray
• Tighten fasteners connecting upright, upright supports
and base
• Adjust base leveling set screws