DE-STA-CO Ferguson Rite-Torq Torque Limiters (Overload Clutches) Type RT, RTM, RTL, RTL-FCB - Manual (Page 9)

9
Installation
NOTE: Ferguson detent style torque limiters are single positioning, and will re-engage on each
revolution. Avoid continuous tripping as it will cause serious damage to the mechanisms.
NOTE: Use of a limit switch (mechanical or proximity) provided by the user is required to shut down the
power after the initial trip. Ferguson torque limiters are provided with a switch actuating plate or flange
to detect the axial tripping movement. IMC recommends using limit switches with rated travel not to
exceed .008” for actuation.
WARNING:
TORQUE LIMITERS:
•
ARE NOT TO BE USED AS A SAFETY DEVICE.
•
ARE NOT MEANT TO PROTECT TOOLING.
•
SHOULD NOT BE USED FOR OVERHAULING OR LIFTING LOADS SUCH AS VERTICAL CONVEYORS
OR TRUNNION-TYPE FIXTURING.
•
SHOULD NOT BE OPERATED MOTOR SPEEDS.
•
IF PROPERLY SET, WILL PROTECT THE INTERNAL MECHANISM OF THE INDEX DRIVE.
RT & RTM Series
NOTE: Clutch torque is preset at the factory for application, if known, or the users
request. Final adjustment is required by the user after the load is applied. Adjustment
procedures can be found on page 13 of this manual.
1. RT & RTM Series torque limiters do not have flexible couplings. For shaft/shaft models it is
necessary to align mating shafts before installation of clutches. Use a dial indicator or
similar instrument.
2. Fit and install key(s) into shaft keyway(s) and hand apply a light coat of anti-seize compound
to shaft surface. (Never Seize® is a brand of such product.)
3. Loosen bolt in clamping hub(s) and slide torque limiter onto driving shaft to required depth.
Tighten bolt in clamp hub securely. Either end of shaft/shaft clutches can be installed on
driving shaft. Slide driven shaft into clutch and tighten bolt in clamping hub securely.
4. Assemble sprockets, pulleys, etc. onto flange side of shaft/flange or flange/flange torque
limiter using tapped holes and dowel holes provided by Ferguson. Torque limiter should be
assembled to slow speed shaft of reducers, indexers, etc. for greatest sensitivity. Slide
clutch onto shaft with sprocket side as close as possible to bearing in reducer, etc. Tighten
bolt in clamping hub securely.
5. Mount and adjust limit switch into proper position with clutch trip flange.
6. Turn on power and inspect.