|
Yes, and also caused by improper tension,
especially the alternator belt. When all the clearance and marker lights are
turned on (both tractor and trailer), it puts a heavy load on the alternator,
and if the belt is not tensioned properly, causes it to slip. It is very
humid here in Mobile, AL. In the mornings when we first start the trucks,
many of the alternator belts will squeal until the batteries are brought up to
full charge, and the belts dry off (overnight moisture). Then the squealing
stops. Then they are fine, but while they are slipping due to moisture and
heavy alternator drain, they are also wearing. If you tighten them so much
that they do not squeal when wet and batteries are not fully charged, you put
too much side tension on the pulley. Can't win. Just replace the
belts more often. Paul Conner
----- Original Message -----
Sent: Saturday, February 26, 2005 1:55
PM
Subject: [FlyRotary] Belt failure
Rate
Paul and all,
My girlfriend's brothers have over
the road trucks and do their own maintenance. They
tell me that most of their belt problems are caused by poor pulley
alignment (Even on new
Trucks from the factory)........FWIW
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2
> Paul wrote:
>
> > Hi, Todd....I
have had to replace the serpentine belt on my Ford motor
> > home.
(Broke on the highway on the way to a canard fly-in of course).
> >
All of our tractor-trailer units have serpentine belts. Fairly high
>
> failure rate. I always keep at least 12 different serpentine belts (2
> > of each size) in my repair truck so that I can fix them on the
> > roadside. We use Gates and/or Goodyear. In fairness, however, a
few
> > of the older units have a V belt for the alternator. They
fail as
> > well. Don't know which type of belt fails more
frequently, but they
> > both fail with regularity. Now if we
changed them at every annual
> > condition inspection, however.....
Paul Conner
No virus found in this incoming message.
Checked by AVG
Anti-Virus.
Version: 7.0.300 / Virus Database: 266.5.0 - Release Date:
2/25/2005
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 266.5.0 - Release Date: 2/25/2005
|