Max retarder temps?

[Ryan Wright]

I have two gauges. My transmission gauge has never seen 230 under my
ownership. It creeps up there going up long grades and has been at
~225 a couple of times, but has never hit that 230 line.

Retarder temp is what I'm concerned about - that sucker goes up fast.
I've (very briefly) hit 300 a couple of times on long downhill grades.
I don't downshift the transmission going down grades - I've always
been able to manage just fine between the service brakes and the
retarder, with the retarder doing the bulk of the work.

Sounds like I'm doing OK, then.

-Ryan
'86 PT-40 8V92

On Mon, May 18, 2009 at 3:40 PM, Don Bradner wrote:
>
> Do you only have one gauge? The Allison Op manual says that you should not
> exceed 270 at the sump, which is where the transmission gauge normally reads
> from. 330 is the normal max for the retarder.
>
> I have both gauges, and I can tell you that when the retarder is at 300 the
> transmission is way, way lower than that.
>
> Don Bradner
> 90 PT40 "Blue Thunder"
> My location: http://www.bbirdmaps.com/user2.cfm?user=1
>