allison operating temp?

[cliffc]

What should the normal operating temp be on the HT740 , also what is the max temp, thanks Cliff

[Kristinsgrandpa]

Normal Operating.........Sump temp.   Min 150 deg F.
  Lockup      250 deg F
  Converter  250 deg F
  Retarder    250 deg F

Allison Transmission Service Manual SM 2004EN, Copyright 1 May, 1990 General Motors Corp.  page 1-14.

This manual covers the HT, HTB, 741,748,755, Models with electronic controls.

HTH Ed