Premier 690L Service Manuallines

SERVICE GUIDELINES
WARNING!
• All 294 bolts are considered a serviceable part & cannot surpass 1-year of use. After 1-year of vehicle installation, it is
considered out-of-service and no longer usable.

294 Bolt Service Life Instructions

• The following applies to all Premier Model 690 couplings (690L, 690R, 690T)
• For new 690 coupling or new/replaced 294 bolt: Record the date of installation.
• 6-months after installation date: Remove & inspect entire 294 bolt and look for fractures along entire length of bolt
(preferably using dye penetrant or mag particle testing).
• If 294 bolt looks good: Re-install & continue to use for another 6-months.
• If fractured DO NOT USE: Contact Premier Mfg.
• 1-year after installation date (regardless of service duty): Remove & replace with new 294 bolt.
WARNING: If, at any time, the 690 Coupling is boundup (jackknifed), then the 294 Bolt MUST be replaced immediately! Until
replacement, the 690 Coupling is not to be used. Furthermore, carefully inspect the 690 Coupling; drawbar; drawbar eye; front
end assembly; and tail board for damage.
Note: Prior to disassembly, measure the wear area on the pintle horn. If the wear is at or exceeds 20% of the cross section, the
coupling is to be considered Out of Service. At a minimum, the 692 Hook and 294 Bolt would need to be replaced prior to the
coupling being placed back into service.
spection/Operation/Maintenance

DISASSEMBLY:

1. Prior to disassembly, familiarize yourself with the location of the various parts in the 690 Coupling. This will assist in the
assembly process.
2. Disassemble coupling, removing all parts from body. Clean and inspect parts and body for wear and/or damage. If wear exists
or damage is noted, replace affected part. NEVER ATTEMPT WELD REPAIR OF ANY DAMAGED OR WORN COMPONENT.
3. Measure the four 690 body holes for wear. The upper (691 Handle) body holes should not exceed 1.300 in diameter. The
lower (294 Bolt) body holes should not exeed 1.156 in diameter. If any measurement is exceeded, the coupling body is to be
considered out-of-service and must be replaced.

ASSEMBLY:

1. All body holes, part holes and pins need to be lubricated with a heavy grease when the parts are reassembled.
2. Lay body of casting on its face, mounting surface up and nose pointing toward you.
PREMIER MANUFACTURING
THE FIRST NAME IN QUALITY COUPLINGS
690L / 690R
Page 1
Document # 10008217
1-800-255-5387 • www.premier-mfg.com