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PREMIER MANUFACTURING COMPANY
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Selecting The Right Equipment
Importance of Inspection and Maintenance
Understanding Premier Load Specifications
Weight of Trailer(s) being towed
(see “Selecting Premier Couplings &
Drawbar Eyes”).
Maximum occurring tongue
weight. Static as well as
dynamic loads.
Maximum load on latch
or upper coupling surface
containing drawbar eye.
Latches and upper coupling
surfaces are not designed
for sustained load at this
stated capacity.
The largest x-section in
eyelet portion of eye. Used to
determine compatibility
with coupling.
Minimum inside diameter
of eyelet portion of eye.
Used to determine
compatibility with coupling.
Weight of unit or pair of
units without accessories.
Each Premier product undergoes extensive design and testing prior to being introduced. We use the latest in
Computer Aided Design and Analysis Software as well as physical destructive tests. Premier
’
s published load
specifications are the maximum load a given product or part will withstand without failure. Premier
’
s testing
procedures closely follow the Society of Automotive Engineers (SAE) guidelines of Recommended Practice for
testing Couplings and Drawbar Eyes (SAE J847 & J849).
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Maximum Tongue Weight:
Ultimate Latch/Upward Vertical Capacity:
Maximum Eye X-Section:
Minimum Eye Opening:
Unit Weight:
30,000 lbs. (13,607 kg)
4,500 lbs.
(2,041 kg)
5,000 lbs.
(2,267 kg)
1 13/16 in. (46 mm)
2 in.
(51 mm)
12.6 lbs.
(5.7 kg)
“Premalloy” - Premier’s Exclusive Alloy
Whether you use Premier Jacks, Couplings, Drawbar Eyes, Hinge Assemblies or any other
Premier product, regular inspection and maintenance are essential for proper function,
keeping repair costs to a minimum and above all, safe and efficient operation.
To determine wear limits, Premier created Wear Gages that help judge the useful
life of couplings and drawbar eyes (details in catalog). In accordance with Premier
and the Federal Motor Carrier Safety Regulations, these were designed to identify
wear at the critical percentages of 18% and 20%, by measuring the cross-
section of coupling hooks (horn) and drawbar eye loops. 18% wear indicates that
the product should be replaced as soon as possible. At 20% wear, the product is no longer in usable condition
and must be taken out of service immediately and replaced. The latch gage bar measures the gap space between
the top of the coupling hook and the closed latch. If the 3/8” latch gage bar can pass between this region, then
the latch components should be considered worn past safe limits and replaced. Please note that these wear gage
specifications are in accordance with Premier Mfg. Co. and the Federal Motor Carrier Safety Regulations (refer to
other manufacturer
’
s specifications for wear limits on their products).
Premier also provides Installation Guides for each of our major products. These help guide you through installation,
inspection, routine maintenance and part replacement. Another resource is our website at
www.premier-mfg.com
.
Here you will find Installation Guides, Service Guides, distributor locations, online catalogs, product information,
trade show schedules and links to trucking resources.
“The harder you work it, the harder it gets”
best describes how Premalloy performs.
Premalloy actually work hardens at the contact surfaces during normal use, which results in
longer service life. Premalloy is highly recommended for off-road and aggregate type applications
due to its wear resistant characteristics. Many of Premier
’
s couplings are made from this exclusive
material. As you are browsing the catalog, look for the Premalloy icon next to the product photos
to determine which models are made of this material.
