Any decent shop should be able to do the work.
The specs (see Maintenance Manual - I have one
at home if you don't) call out the size for the
king pin's hole in the end of the axle. If worn
beyond the service maximum you would need to
have the hole enlarged to the "over" size and
use the oversize kingpin. You would need inside
micrometers to measure the hole size.
As long as the old kingpin was not moving around
in the axle you shouldn't have to go oversize.
After I finally knocked my old one out I used 160
grit Emery cloth chucked into a drill and a little
solvent to act as a cleaner and lubricant to clean
up the hole through the axle. When I finished I
put some light oil on the new kingpin. It took
the kingpin 3 or 4 seconds to fall through the hole
powered by only it's own weight. Close enough
for me to a good fit.
-----Original Message-----
From: bob_keeland@usgs.gov [mailto:bob_keeland@usgs.gov]
Sent: Friday, June 02, 2000 3:10 PM
To: oletrucks@autox.team.net
Subject: RE: [oletrucks] Ki ngpins on a half ton AD
Thanks for the information from Deve and Bill. Now for my next question,
how do I check to see if I need oversized replacement kingpins? Also,
can't I just take the axle to a machine shop and have the kingpins pressed
out (and then the new ones in) if they give me trouble? Surely that would
not be too spendy.
BobK
51 3600 5-window
Arnaudville, LA
>From Bill,
Have fun Bob. I just replaced mine and the driver's side was a
real &^$%# to get out. Now that I'm done, I'm real happy with
the results.
I used:
a half can of Liquid Wrench over night - didn't help
heat from a propane torch - didn't help
2 pound hammer swung with 1 hand while the other
hand held a brass drift - didn't help
8 pound hammer swung with 1 hand while the other
hand held a brass drift - moved the pin
about 1/8"
Tricks that did help:
You MUST support the axle directly under the kingpin.
Anything else allows the axle to flex when you hit
the top of the kingpin
I needed to swing the hammer with both hands. I used
a 1/2" female to 3/8" male socket adapter as my "drift".
I packed some modeling clay around it to keep it from
bouncing out of the hole when I hit it. By the time I
was done with it the 3/8" end was totally ruined, but the
kingpin was out.
|