Mach III Clutch V8G1K-STL, V8G2K-STL User Manual
Page 2

7/9/2013
TORQLIM_MECH_W_COUPL_MANUAL
Page 2 of 5
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 re-
setting in the field, please refer to section VII of this document. 
II.
Torque Limiter Installation
Great care must be exercised to assure proper offset & angular alignment between shafts 
to prevent premature coupling failure. 
Dimensional diagrams can be obtained by using links on page one of this manual.
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
After a short run, check set screws and alignment. 
 
III.
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. 
 
IV. 
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. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
