Premier Manufacturing Co. 820ELA Operating manual

IMPORTANT
Read these instructions completely before installing, using or
attempting to repair this product. If you have any questions,
call Premier at [phone] or [phone].
Installation, Inspection, Operation
& Maintenance Guide
MANUFACTURING CO.
THE FIRST NAME IN QUALITY COUPLINGS
Model 820ELA Coupling

PREMIER MANUFACTURING COMPANY 1-800-255-5387 • www.premier-mfg.com
Page 2
PREMIER MANUFACTURING COMPANY 1-800-255-5387 • www.premier-mfg.com
4
Step 3: Considering Operating Conditions and Environments
Step 2: Determine “Tongue Weight Capacity”
Step 1: Determine “Gross Trailer(s) Weight”
Step 4: Browse Premier Product Catalog
Selecting The Right Equipment
4
Whatever your application, selecting the proper equipment for the job is very important� Proper selection along
with regular inspection and maintenance will help keep operating costs minimal while providing long life to each
component� Below are general guidelines for selecting Premier Couplings and Drawbar Eyes� If you feel that your
application is unique, please give Premier a call so that we may help you through the selection process�
Follow these four steps to ensure proper selection of Premier Couplings and Drawbar Eyes�
Step 2:
Determine “Tongue
Weight Capacity”
(Maximum occurring tongue weight)
Step 3:
Add Margin of Safety
(Dependent upon your equipment
and operating environment)
Step 4:
Browse Premier
Product Catalog
(Based on Steps 1 - 3)
Step 1:
Determine “Gross
Trailer(s) Weight”
(GVWR(s) of towed trailers)
“Gross Trailer(s) Weight” is usually determined by the Gross Vehicle Weight Rating (GVWR)� This information is
attached to the trailer by the trailer manufacturer�
For “Double Trailer” configurations, only the rear trailer is considered
when selecting your Premier Coupling or Drawbar Eye� In this example, a
Coupling and Drawbar Eye with a “Gross Trailer Weight” rating of 40,000 lbs�
(18,143 kg) would be the minimum rating acceptable for normal, over-the-
road applications (see Tongue Weight section below)�
For “Triple Trailers”, only the two most rearward trailers are
considered in selecting your Premier Coupling or Drawbar Eye�
In this example, a Coupling and Drawbar Eye with a “Gross
Trailer Weight” rating of 80,000 lbs� (36,287 kg) would be the
minimum acceptable for normal, over-the-road applications
(see Tongue Weight section below)�
Double Trailer Configuration
Triple Trailer Configuration
Example only, each application may vary and should be considered unique�
Example only, each application may vary and should be considered unique�
40,000 LBS 40,000 LBS
40,000 LBS
Environments such as rough uneven roads or off-road use can dramatically increase shock loads to both drawbar
eyes and couplings� In general, increasing the “Gross Trailer Weight” (Step 1:) and “Tongue Weight Capacity”
(Step 2:) by a minimum of 25% will be sufficient for many applications� Even if an application is used off-road
occasionally, the minimum increase necessary for Gross Trailer and Tongue Weight is 25%� Certain types of
equipment and/or operating practices can also dramatically increase loads through equipment binding and/or
improper loading practices� Of special concern is high tongue weight� However, each application is unique and
every environment different, therefore your application may require more than 25%�
Once both “Gross Trailers(s) Weight” (Step 1:) and “Tongue Weight Capacity” (Step 2:) have been determined,
evaluate your operating conditions and apply an appropriate margin of safety�
Browse the Premier Product Catalog and refer to the “Specifications” section of each product� Be sure to review
the “Understanding Premier Load Specifications” section and “Coupling to Drawbar Eye Cross-Reference” sheet
on the next couple pages�
“Tongue Weight Capacity” is the maximum expected weight at
the drawbar eye� If a hinged drawbar is used, the maximum weight
will be approximately 1/2 the overall drawbar weight� If a non-hinged
drawbar is used and the actual tongue weight is not known, you can
approximate the weight by multiplying the GVWR of the towed trailer
by 15%� However, each application is unique and the best practice is
to weigh the tongue when the trailer is loaded to its GVWR�

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PREMIER MANUFACTURING COMPANY 1-800-255-5387 • www.premier-mfg.com 5
Understanding Premier Load Specifications
Selecting The Right Equipment
SAMPLE ONLY
5
Weight of Trailer(s) being towed
(see Steps 1-4 on page 4)�
Maximum occurring tongue
weight� Static as well as dy-
namic 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)�
Maximum Gross Trailer Weight:
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)
Customer Service: We are always here to support you� Do you need additional information or assistance? Your
phone calls are greeted by our courteous receptionist, during business hours� We have exceptional, personable
Customer Service Reps for you to rely on� If you have product questions or want to place an order, you can speak
directly with one of our experienced and knowledgeable Customer Service Representatives�
Sales Representatives: Would you like on site training or assistance? Contact one of our veteran Premier Sales
Reps for more information about product training for your staff� Or be sure to visit with them at a Trade Show (see
website for schedule)�
www.premier-mfg.com: Our website is an informative resource at your fingertips� In addition to our Installation
and Service Guides, you will find our Sales Representatives, distributor locations, online catalog pages, product
specifications, how to select product, trade show schedule, and links to trucking resources�
Additional Product Resources at Your Fingertips
Importance of Inspection and Maintenance
Safety is our #1 Priority: Through high quality designs and unsurpassed quality control procedures, Premier
assures our customers that our focus on safety continues to be our #1 priority�
Scheduled Inspection & Maintenance: Regularly scheduled inspection and maintenance are essential for
maintaining safe and efficient operations whether you are using Couplings, Drawbar Eyes, Jacks, Hinge Assemblies,
or any other Premier product� Inspection and maintenance are necessary for proper function and will also keep
repair costs to a minimum�
Technical Literature: Premier provides important literature to assist you with our products� We package and attach
Installation, Inspection, Operation & Maintenance Guides, or Service Guides, to each of our major products� This
literature is also available to view and/or print from our website at www.premier-mfg.com� These supply you with
important information and help guide you through installation, inspection, operation, routine maintenance and part
replacement�
Wear Gages: In accordance with the Federal Motor Carrier Safety Regulations, we created Wear Gages to assist
you in determining the wear limits of Premier couplings and drawbar eyes� See details on catalog pages 7 & 75�

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PREMIER MANUFACTURING COMPANY 1-800-255-5387 • www.premier-mfg.com 1
Coupling - to - Drawbar Eye, Cross Reference Chart
Selecting The Right Equipment
2* 3 4 5 6/6A 8 11 20 21 22 23 107 108 110 123 127 200 200L 205 207 238DB 245DB 245DB-3 300/300HD 304 305 307 309 405 407SE
16 ••••••••••••••••••••••••••••••
24 •
100 †••••••••••••••••••••••••••••
100-3 †••••••••••••••••••••••••••••
100-4 †••••••••••••••••••••••••••••
100-4H †••••••••••••••••••••••••••••
130 ••••••••••••••••••••••••• •••
135NT •••••••••••••••••• •••••• •
140 • • •
150 ••••••••••••••••••••••••••••
160 ••••••••••••••••••••••••••••••
235NT ••••••••••••••••• •••••• •
240 •••••••••••••••••••••••••••••
240K ••••••••••••••••••••••••••••
270 ••••••••••••••••••••••••••••
335NTEL • • • • • •
360 ••••••••••••••••••••••••••••
370 ••••••••••••••••••••••••••••
370B ••••••••••••••••••••••••••••
470 ••••••••••••••••••••••••••••
470H ••••••••••••••••••••••••••••
480 ••••••••••••••••••••••••••••
570 ••••••••••••••••••••••••••••
580 ••••••••••••••••••••••••••••••
580J ••••••••••••••••••••••••••••
690L ••••••••••••••••••••••••••••
780 ••••••••••••••••••••••••••••
790 • ••••••
820ELA ••••••••••••••••••••••••••••
880 • ••••••
890/890C • • • • • • • • • • • • • • • • • • • •
2200 ••••••••••••••••••••••••••••
2300 ••••••••••••••••••••••••••••
2400 ••••••••••••••••••••••••••••
2400H ••••••••••••••••••••••••••••
2880 • ••••••
Couplings
Drawbar Eyes
† Saf-Tite Product
* Industrial Application
CAUTION: Verify that both the coupling’s and drawbar eye’s rated capacities
meet your application(s) requirements.

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SAFETY WARNING
This product is designed for towing under
normal conditions within the stated gross
trailer weight. Do not overload or abuse this
product. Overloading or abuse may lead to
property damage, severe injury, or death.
820ELA Coupling
820ELA STANDARD INSTALLATION DRAWING
SPECIFICATIONS AND LOAD CAPACITIES
Gross Trailer Weight:
Maximum Tongue Weight:
Ultimate Latch Capacity:
Maximum Eye X-Section:
Minimum Eye Opening:
Model 820ELA Unit Weight:
100,000 lbs. (45,359 kg)
20,000 lbs. (9,072 kg)
60,000 lbs. (27,216 kg)
1 13/16 in. (46 mm)
2 3/8 in. (60 mm)
48.8 lbs. (22.1 kg)
3/4
3 1/16
2 1/8
6
8 1/8
3 13/16
6 17/32
11 11/16
8 3/8
2 3/4 4 7/16
7 3/8
5 1/4
6 1/2
3 1/4
1 1/4
1 1/16
3
1 1/4
(X-MEMBER DRILL)
1 1/2
(X-MEMBER DRILL)
PUSHROD LENGTH IS 4 5/16 in. (110 mm) PLUS THICKNESS OF MOUNTING STRUCTURE (X-MEMBER) FOR STANDARD INSTALLATIONS.
281 AIR CHAMBER
267 AIR CHAMBER
BRACKET
271 THIMBLE
MOUNTING SURFACE
ON VEHICLE
(X-MEMBER)
MOUNTING SURFACE DRILLING DETAIL
4 X 25/32
Pushrod length is 4 5/16 in. (110 mm) plus thickness of mounting structure (X-member) for standard installations as illustrated.

509 Bolt Kit
Air Chamber 282 Type-30: Provides a larger diaphragm for greater shoe force compared to 281 Air Chamber.
Wear Gage 14014 (2 1/8 in.): To determine hook wear limits.
Latch Gage 14026: To determine latch gap limit.

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INSTALLATION
WARNING:
This product is designed to be operated as described in the Inspection/Operation/
Maintenance section of this document.
The 820ELA safety mechanism is not designed to be part of the normal operation of
the coupling, and ideally should never be used to close the latch mechanism.
In the event that the latch was not properly closed as described in the Inspection/
Operation/Maintenance section of this document, the safety mechanism is designed
as an additional safety measure to potentially assist in closing the latch under ideal
conditions, provided the coupling’s latch system is operating smoothly and correctly
per the operation sections for opening and closing the latch of this document.
There are conditions that can prevent the safety mechanism from closing the latch
of the coupling. Per the Federal Motor Carrier Safety Regulations, Section 392.7,
Paragraph (a) No commercial motor vehicle shall be driven unless the driver is
satisfied that the following parts and accessories are in good working order, nor shall
any driver fail to use or make use of such parts and accessories when and as needed:
Coupling devices.
It is the responsibility of the operator making the equipment coupling connection to
make sure that the latch is closed correctly according to the operation described in the
Inspection/Operation/Maintenance section of this document.
820ELA Coupling

509

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820ELA Coupling
12. If the 820ELA latch mechanism did not
close, verify that the 281 Air Chamber has
been connected to the emergency side air
supply. If the 281 Air Chamber has been
correctly connected to the emergency side air
supply, verify that the 834 Air Line is properly
connected to the 830 Auxiliary Air Cylinder and
the 281 Air Chamber. Make sure there are no
leaks in any of the connections and the 834 Air
Line is not twisted, kinked, pinched, or blocked
in any manner. Verify the pressure to the 834
Air Line is at least 90 psi with the system fully
pressurized. Verify the 839 Breather Vent is not
blocked. Verify the 830 Auxiliary Air Cylinder is
not damaged and the rod is clean and free of
contaminants. Refer to Figure 4 and Figure 5
for the location of these components.
13. The 821 Pawl, 822 Latch, 823 Pin, 824 Handle,
and 825 Locking Pawl are each plated for
corrosion resistance. DO NOT APPLY AN
EXCESSIVE AMOUNT OF PAINT TO THESE
PARTS. Depending on the paint thickness
and type this can negatively affect the 820ELA
safety mechanism. If these components are
painted the latch safety mechanism must be
tested and confirmed to operate correctly and
reliably at a test pressure of 60 psi. Refer to
Figure 4 for the location of these components.
14. DO NOT APPLY PAINT TO THE 839
BREATHER VENT OR THE ROD OF THE
830 AIR CYLINDER. Refer to Figure 5 for the
location of these components.
15. “IMPORTANT WARNINGS!” sticker was
enclosed. This must be attached to the coupling
or cross member and be visible for the end
user to read.
INSTALLATION
Figure #1
831 FITTING
834 AIR LINE

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820ELA Coupling
Figure #2
Figure #3
835 REDUCER FITTING
836 FITTING 281/282 AIR CHAMBER
Edge must
NOT be sharp
Route 834 air line in a manner
that prevents the line from
contacting sharp/abrasive surfaces.
Do NOT twist, kink, pinch,
or install line under tension.
Use grommets or soft tube clamps
if necessary.
Partial mounting structure shown for clarity
INSTALLATION

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INSTALLATION
Figure #4
821 PAWL
824 HANDLE
834 AIR LINE
823 PIN
822 LATCH
837 SAFETY PIN
825 LOCKING PAWL
281 AIR CHAMBER
279 SHOE
267 AIR CHAMBER BRACKET
A
A
SECTION A-A
839 BREATHER VENT 830 AUXILIARY AIR CYLINDER ROD
830 AUXILIARY AIR CYLINDER
831 FITTING
834 AIR LINE
PARTIAL SECTION VIEW SHOWN FOR CLARITY
Figure #5
820ELA Coupling

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INSPECTION / OPERATION / MAINTENANCE
Operation:
Opening Coupling Latch:
1. While facing the mounted 820ELA Coupling,
remove the 837 Safety Pin from the 820
Coupling body. Pull the 824 Handle toward
you until full rotational travel is reached. While
keeping your hands clear of the 822 Latch,
hold the 824 Handle in this position, push the
top of the 821 Pawl away from you allowing the
822 Latch to rotate into the open position. Keep
your hands clear of the 822 Latch until the
components are no longer in motion.
2. Release the 824 Handle and 821 Pawl. The
820ELA Coupling is now open and ready to
couple or uncouple. Important Safety Note:
During the opening procedure, the latch system
should operate smoothly. The 822 Latch should
quickly rotate to the completely open position
each time it is operated. If it does not, the
coupling is to be considered out of service until
rectified.
Closing Coupling Latch:
3. Rotate the 822 Latch downward toward the
pintle until the 821 Pawl and 825 Locking Pawl
rotate into the closed and engaged position.
4. Insert the 837 Safety Pin into the 820 Coupling
and 821 Pawl. The 820ELA coupling is now
closed. Important Safety Note: During the
closing procedure, the latch system should
operate smoothly. The 822 Latch should not
bind or exhibit a rotational resistance other than
the friction imposed by the 821 Pawl, and the
822AL/822AR torsion springs. The 821 Pawl
and 825 Locking Pawl should freely move to
the closed and engaged position by the rotation
of the 822 Latch to the closed position. If it
does not, the coupling is to be considered out
of service until rectified.
5. To test for proper latching, apply force to the
top of the 821 Latch toward the mounting
structure to the top of the 821 Latch. THE
LATCH SHOULD NOT OPEN! If the latch does
not stay closed, do not use until it has been
repaired or replaced.
Inspection and Maintenance:
1. Visually inspect the coupling body and latch
components for cracks, impact damage and/
or deformation before each and every use. Do
NOT use if any of these conditions exist.
2. Check the gap between the 822 Latch and the
top of the pintle/hook on the coupling body
before each and every use. A gap of 3/8” or
more means the coupling must be taken out of
service and repaired or replaced.
3. If the wear area on the pintle/hook has worn
20% or more from its original cross-section, the
coupling is considered out of service and must
not be used.
4. Lubrication of the zerk fittings must be
performed at 90-day intervals or sooner
depending on the operating environment.
Lubricate the zerk fittings with a high-quality low
temperature grease, to evenly coat all rotation
points. Rotate each latch component several
times to evenly distribute the lubricant. Test the
coupling for proper operation per the operation
section of this document.
5. Remove any excess lubricant with a rag. Do
not apply lubricant to the pintle/hook or saddle
area of the coupling.
6. The latch safety mechanism should be validated
for proper function at 90-day intervals. The
latch safety mechanism should be immediately
repaired or replaced if it is not working properly.
7. Never weld on any Premier part in order to
repair damaged or worn areas. Field and/or
shop welds are inadequate and may further
weaken the coupling.
8. WARNING: Other inspection and maintenance
procedures are also required prior to the
operation of combination vehicles. Consult
and follow all Federal Motor Carrier Safety
Regulations as well as local, state and federal
guidelines.
820ELA Coupling

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820ELA Coupling
- Do not weld on any coupling assembly
- Always use Grade-8 fasteners properly torqued
- Do not apply lubricants to the coupling hook
- Air service chamber must be Type-24 or Type-30 with 90-120 PSI
air supply
- Clean & inspect coupling for damage & excessive wear prior to each and
every use
- Lubricate all coupling components at a minimum of 90 day intervals
- Do not bind-up (Jackknife) any application as stresses can cause damage
to products or components, resulting in failure and detachment of the trailer
while in use
IMPORTANT GUIDELINES that apply to all Premier Air Adjusted Couplings
INSPECTION / OPERATION / MAINTENANCE
6. This product is designed to be operated within
its free rotation limits. It is the responsibility of
the vehicle designer/end user to assure that
these limits are not exceeded (do not bind-up/
jackknife).
7. WARNING: Prior to towing, make certain that
adequately rated safety chains have been
properly connected.
WARNING:
This product is designed to be operated as described in the Inspection/Operation/
Maintenance section of this document.
The 820ELA safety mechanism is not designed to be part of the normal operation of
the coupling, and ideally should never be used to close the latch mechanism.
In the event that the latch was not properly closed as described in the Inspection/
Operation/Maintenance section of this document, the safety mechanism is designed
as an additional safety measure to potentially assist in closing the latch under ideal
conditions, provided the coupling’s latch system is operating smoothly and correctly
per the operation sections for opening and closing the latch of this document.
There are conditions that can prevent the safety mechanism from closing the latch
of the coupling. Per the Federal Motor Carrier Safety Regulations, Section 392.7,
Paragraph (a) No commercial motor vehicle shall be driven unless the driver is
satisfied that the following parts and accessories are in good working order, nor shall
any driver fail to use or make use of such parts and accessories when and as needed:
Coupling devices.
It is the responsibility of the operator making the equipment coupling connection to
make sure that the latch is closed correctly according to the operation described in the
Inspection/Operation/Maintenance section of this document.

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CONTINUE TO NEXT PAGE FOR
IMPORTANT INFORMATION.
820ELA Coupling

(1) VERIFY THAT BOTH COUPLING’S AND
DRAWBAR EYE’S RATED CAPACITIES MEET
YOUR APPLICATION(S) REQUIREMENTS.
(2) DO NOT OVERLOAD COUPLING OR DRAWBAR
EYE.
(3) INSPECT COUPLING, LATCH AND DRAWBAR
EYE FOR CRACKS, BENDING DAMAGE OR
EXCESSIVE WEAR. DO NOT USE IF ANY OF
THESE CONDITIONS EXIST!
(4) CHECK FOR GAP BETWEEN CLOSED LATCH
AND TOP OF HORN OR COUPLING BALL.
DO NOT USE IF GAP IS 3/8 IN. OR MORE.
(5) MAKE SURE COUPLING IS LATCHED AND THAT
LATCH WILL NOT OPEN.
(6) PRIOR TO USE, ALWAYS CONNECT SAFETY
CHAINS OF ADEQUATE STRENGTH FOR
LOAD(S) BEING TOWED.
(7) DO NOT BIND-UP (JACKKNIFE) ANY
APPLICATION AS STRESSES CAN CAUSE
DAMAGE TO THE COUPLING, DRAWBAR EYE,
OTHER COMPONENTS OR ANY COMBINATION
OF THEM. JACKKNIFING MAY RESULT IN
FAILURE OF PRODUCTS OR COMPONENTS,
RESULTING IN DETACHMENT OF THE TRAILER
WHILE IN USE.
(8) DO NOT APPLY LUBRICANTS TO THE COUPLING
HOOK OR DRAWBAR EYE LOOP, AS THEY
CAN COVER UP POSSIBLE DAMAGE AND
ACCELERATE WEAR.
(9) ALWAYS ABIDE BY ALL APPLICABLE STATE AND
FEDERAL REGULATIONS GOVERNING SAFE
AND PROPER TRANSPORTATION.
(10) NEVER STRIKE ANY OF THESE COMPONENTS
WITH A HAMMER OR ANY OTHER DEVICE.
(11) ALWAYS VERIFY PROPER OPERATION
OF LATCHING SYSTEM AND COUPLING
COMPONENTS PRIOR TO DRIVE OFF.
(12) NEVER USE A COUPLING THAT YOU DO NOT
FULLY UNDERSTAND HOW TO PROPERLY
OPERATE AND VERIFY SECURE LATCHING OF.
(13) NEVER REPLACE ANY PART IN ANY OF
PREMIER’S ASSEMBLIES WITH NON-PREMIER
COMPONENTS. DOING SO WILL VOID ALL
WARRANTY AND POTENTIALLY COMPROMISE
THE UNIT’S INTEGRITY, WHICH COULD RESULT
IN PROPERTY DAMAGE, SERIOUS INJURY, OR
DEATH.
ATTENTION !
End Users must read and follow this information.
DISTRIBUTORS & OEM’S: Please ensure that your customers
are made aware of the following information on this page.
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WARRANTY: We warrant all Premier products to be free from defects in material or workmanship for one year. We
will repair or replace, at our option, any Premier product which our examination reveals to be defective, provided
that the product is returned to our factory, at Tualatin, Oregon transportation prepaid, within one year of purchase
by the first retail purchaser. Our warranty does not extend to products which have been subject to misuse, neglect,
improper installation, maintenance or application, nor does our warranty extend to products which have been
repaired or altered outside of Premier’s facility unless the repair or alteration has been expressly authorized in
writing by Premier. This warranty is in lieu of all other warranties, express or implied, and excludes
warranties of merchantability, fitness for a particular purpose and otherwise, and in no event will Premier
be liable for incidental, special, contingent or consequential damages.
DISCLAIMER: Although great care has been taken to ensure accurate information throughout this document,
Premier Manufacturing Company must reserve the right to alter any information contained within. These changes
include but are not limited to: Dimensional changes, load capacity and availability of any part or assembly.
© 2019 Premier Manufacturing Company
All rights reserved. Any reproduction of the photographic images or any other portion of this document, including but not limited to the photocopying, or retention and/or storage
in a retrieval system of any kind, is strictly prohibited without prior express written permission from Premier Manufacturing Company.
WARNING!
This envelope contains important
instructions AND MUST REMAIN
ATTACHED TO THIS COUPLING.
It may be removed only by the End
User or by an Original Equipment
Manufacturer who preserves this
envelope and instructions and
provides it to the end user.
PREMIER MANUFACTURING COMPANY
THE FIRST NAME IN QUALITY COUPLINGS
800-255-5387 [phone]
www.premier-mfg.com
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PREMIER MANUFACTURING COMPANY Page 16
Created: 12/2019
Model 820ELA Coupling
Installation, etc.