Locking Tag Axle Tire

[tracyt3]

--- In WanderlodgeForum@yahoogroups.com, "Rex" wrote:
> First post reading for years. Have had a tag axle, drivers side,
> that locks on hard braking. Many corrective actions taken. Started
> by replacing leaking oil seal and brakes that wheel. Adjusted slack
> adjusters myself and also local truck shop. At Bennie???
> recommendation at Bluebird hooked up guages to each line going to
> each tag axle wheel. Thought had found problem approximately 10#
> difference, BUT switched gauges and found that the guages had a 10#
> difference. Guages actually show air pressures to each side very
> close. Truck mechanic thinks it could be warped brake drum, but
> it has not been noticed when other repairs made. Before taking off
> wheel and drum again, I though that I would seek help from past
> experiences on forum.
>
> Rex Puckett
> 85PT36

Rex,

This may help or not! I have a 85 pt40 and when I applied the brakes
hard the tags skid I increased the presure to around 60 psi, they were
at 45 they don't skid now. Maybee your pressure is low or a bag is
leaking on one side, or even a big difference in the weight of the
sides is causing just one to lock up at a time. Maybee a combination
of all where there is less efective weight on that side. What pressure
are you running in the tags? and even what air pressure in the tires
are you running? mains to tags?

John Mann
85 pt40
Granbury Tx.