| [GMCnet] Shoddy Preventative Maintenance [message #326004] |
Tue, 14 November 2017 15:30  |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma:
|
Senior Member |
|
|
I've lately been thinking that I should examine my rear suspension. I
Installed one of the first production run of the Manny Brake system. Aside
from having re-tightened the reaction arms' pivot block securing bolt a few
times during the first 1000 miles, I really haven't looked at the system
again. That includes my trip to the west coast in 2013, Kerry Pinkerton's
and my trip to Pueblo and Rapid City in 2015, and many other trips --
undoubtedly 20,000+ miles, 'tho' I haven't checked my records.
So, yesterday, about 246/254ths of the way home from the FL panhandle, we
heard a loud scraping noise from the rear of the coach when I applied the
brakes. After a couple of episodes, 3 miles from home, I pulled into a
large used car lot and sought out the source. Here's what I found at the
right rear bogie:
https://drive.google.com/open?id=0B3XquSIYjDleNVZROTYxXzBSeXBBaWlHd0tvZEluaTFaR3dB
Ooops, wrong link! Try this:
https://drive.google.com/open?id=1bm24_y8ugQZ6fbZWU8gIkBf5DSrH-cWYbQ
Not quite as catastrophic as the first one! Yep, the securing bolt for
the reaction arm pivot block loosened, allowing the block to twist 90* and
come out of the bogie. That means that the reaction arms acted only on
each other. Braking force became dependent upon whatever limits rotation
of the torque boxes whch support the brake calipers. I haven't removed
anything yet to check for damage, but I really don't expect any. I'm
confident that Manny anticipated similar events. There seemed to be no
effect on normal braking, but I barely used them after the noise began.
I'll report any further findings.
Remember to do as I SAY about preventative maintenance -- NOT as I DO. :-)
Ken H.
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
|
|
|
|
GMCforum
Search
Help
Register
Login
Home
