Mach III Clutch T6B1G-STL, T6B1H-STL, T6B2H-STL User Manual
CLICK on product numbers above
to obtain the product detail sheet
which includes dimensional data
helpful during installation.
Installation & Maintenance Manual
MECHANICAL FRICTION TORQUE LIMITERS
THROUGH SHAFT MOUNT – BRONZE BUSHING PILOT
Catalog Products:
T3B2H-STL
T4B2H-STL
T5B2H-STL
T6B1G-STL, T6B1H-STL, T6B2H-STL
And non-catalog variations
of this torque limiter design.
Mach III Technical Support
Toll Free: 866-291-0849
International: 001-859-291-0849
Email: engineering@machiii.com
www.machiii.com
Detail sheets and 3D models are available on the Mach III website:
http://www.machiii.com/Products/Torque-Limiter/Pilot-Mount-Torque-Limiters-Bronze-
Bushing.asp
Please contact Mach III to obtain assembly and parts list drawings.
This product includes rotating equipment and should be guarded according to
OSHA requirements and other Federal, State and local regulations. It is the
responsibility of the user to provide necessary guarding.
7/27/2013 TORQLIM_BRNZBUSH_MANUAL Page 1 of 5
© Mach III Clutch, Inc. All Rights Reserved
I. Torque Setting
Mach III torque limiters are typically shipped to the customer with the torque value they have
specified. (Note: All torque settings are +/- 10%.) If a torque limiter requires setting or resetting in the field, please refer to section VIII of this document.
II. Installing a Sprocket or Pulley
Mach III units are typically shipped from the factory with the required sprocket or pulley
preinstalled. This section pertains only to those who need to install or replace a pulley or
sprocket in the field. Please use the links on page one of this document to obtain the
detail sheet for your unit. This sheet will include the pilot diameter and other dimensions
needed to machine the sprocket or pulley.
Bore the sprocket or pulley for clearance (slide fit) over pilot and drill standard clearance
holes for the number and type of screws on corresponding bolt circle. The cap screws
used to attach the sprocket or pulley should not be longer than the sum of the depth of
the threaded hole plus the thickness of the sprocket or pulley. Otherwise, the cap screws
may bottom out. Tighten all screws to uniform torque based on screw size and use
proper Loctite® (or equivalent) compound to assure a permanent mount.
III. Torque Limiter Installation
A. SHAFT PREPARATION & MOUNTING
Mach III Clutch products are bored to fit a precision plug gauge for the specified bore size and
should slide fit the mating shaft. Make certain that the shaft is free of burrs or nicks. It may be
necessary to file or sand the shaft to assure a slide fit. Never hammer the torque limiter onto
the shaft. Hammering on the torque limiter may cause evident damage or subtle injury that will
shorten the wear life of the unit, and will void the warranty.
(1) Apply the anti-seize (E-Z Break®) lubricant from the packet provided, or equivalent, to
the shaft.
(2) Insert key (customer supplied) onto the shaft.
(3) Slide torque limiter over key on the shaft, align the sprocket or pulley.
(4) Tighten set screws to secure the torque limiter to the shaft.
B. FINAL INSPECTION & TESTING
Check alignment of the sprocket or pulley. After a short run, check set screws and alignment.
IV. Torque Limiter Operation
This is a manually adjusted torque limiter. Torque is proportional to the amount of spring
compression.
Special Note Regarding Friction Disc Contamination:
The friction material used in this product will absorb oil, water, chemicals and other
contaminants. Depending on the type of contamination, torque limiter may either seize
up entirely or lose torque capacity. If friction discs become contaminated, they should be
replaced. See repair kit ordering information below.
V. Routine Maintenance
When installed and operated according to the preceding guidelines, Mach III Clutch
products should require little or no routine maintenance. A repair kit is available which
contains all parts subject to typical wear: friction discs, springs.
7/27/2013 TORQLIM_BRNZBUSH_MANUAL Page 2 of 5
Loading...