Owner's Manual for Thern TSSBW Spur Gear Hand Winches
page 14
A10191-0309
Table 2 – Troubleshooting Chart
Contact the factory for detailed instructions if you are required to disassemble the winch or brake for any reason.
Disassembly of the winch or brake before contacting Thern, Inc. voids all warranties.
problem
cause
correction
handle turns, drum doesn't turn
• loose, stripped or broken gears . . . . . . . . . . . . . . inspect gears and repair as necessary
handle turns hard or not at all
• load too heavy . . . . . . . . . . . . . . . . . . . . . . . . . . . lighten load
• disc brake damaged or locked . . . . . . . . . . . . . . . inspect brake, repair as necessary
• gears or bearings broken or locked . . . . . . . . . . . inspect and repair as necessary
brake does not operate properly
• friction discs worn or damaged . . . . . . . . . . . . . . . inspect and replace as necessary
• friction discs damaged from over lubrication . . . . inspect and replace as necessary
• disc brake ratchet pawl damaged . . . . . . . . . . . . . inspect and repair as necessary
excessively worn gears or bearings
• load too heavy . . . . . . . . . . . . . . . . . . . . . . . . . . . lighten load
(excessive backlash)
• poor lubrication of gears or bearings . . . . . . . . . . inspect and relubricate as necessary
overheating
• operated too long without rest . . . . . . . . . . . . . . . allow to cool
• load too heavy . . . . . . . . . . . . . . . . . . . . . . . . . . . lighten load
• poor lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . inspect and lubricate as necessary
• bearing seized up . . . . . . . . . . . . . . . . . . . . . . . . . inspect and replace as necessary
unusual noises
high pitched squeak
• poor lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . inspect and relubricate as necessary
grinding noise
• contaminated lubrication . . . . . . . . . . . . . . . . . . . clean and relubricate winch
• dirt in brake or winch gears . . . . . . . . . . . . . . . . . inspect and clean as necessary
• broken gears or bearings . . . . . . . . . . . . . . . . . . . inspect and replace as necessary
rattling noise
• loose bolts, set screws or other fasteners . . . . . . tighten all bolts and other fasteners
uneven clicking noise in brake
• broken gear tooth in brake . . . . . . . . . . . . . . . . . . inspect and repair as necessary
weak clicking noise in brake
• worn brake ratchet pawl, gear, or spring . . . . . . . inspect and replace as necessary
no clicking noise in brake
• ratchet incorrectly installed . . . . . . . . . . . . . . . . . . disassemble and install correctly
• ratchet pawl damaged or worn excessively . . . . . inspect and replace as necessary
3.4
Repairing the Winch
3.4.1
GET FACTORY AUTHORIZATION for all repairs. Unauthorized repairs
will void the warranty, and may lead to damage or failure of the winch.
3.4.2
REPLACE DAMAGED OR POORLY OPERATING PARTS with Thern
repair parts.
3.4.3
TO ORDER REPAIR PARTS, contact your local dealer. Include the fol low -
ing in for ma tion when ordering:
• model number
• serial number (or code number)
• part number
• date purchased, and from whom
• description of what happened, or what is wrong
• your name and return address
Important!
• It is your responsibility to de-
ter mine when to replace parts.
When considering whether to
continue using a part or to replace
it, re mem ber that replacing it
is the best way to avoid further
equipment damage.
• Replace all retaining rings when
you dis as sem ble the winch or
brake for repair or replacement.
• Appoint a qualifi ed person to be
responsible for all repairs to the
equipment.
