Specifications

WARNING

If at any time the 690 coupling is bound up (jack-

knifed), the 294 bolt MUST be replaced immedi-

ately! Do not use the coupling until the bolt has

been replaced. In addition, carefully inspect the

690 coupling, drawbar, drawbar eye, front end as-

sembly, and tail board for damage. Failure to do

so may result in trailer separation from the truck

while in use, resulting in serious personal injury

or property damage.

The time-in-service of the 294 bolt located in the 690

coupling must be monitored, and maintenance per-

formed as follows. See

Fig. 14.

For a new or replaced 294 bolt:

• Record the date of installation.

6 months after installation date:

• Remove the 294 bolt. Using dye penetrate or

magnetic particle testing along the length of the

bolt, inspect for fractures.

• If the 294 bolt has no damage, install it and

continue to use for another 6 months.

• If the 294 bolt is fractured, DO NOT USE. Con-

tact Premier Mfg. Co.

1 year after installation date:

• Regardless of service duty, replace the 294 bolt

with a new one.

f310313a

07/13/2010

1. Linch Pin

2. Handle

3. Pintle Hook

4. 294 Bolt

Fig. 14, Premier 690 Trailer Coupling

Frame and Frame Components31

Century Class Trucks Maintenance Manual, August 201131/10