WORKHORSE CUSTOM CHASSIS
Service Manual
Automatic Transmission – Allison
2007 W Series
© 2006 Workhorse Custom Chassis — All Rights Reserved
SECTION
7.2
PAGE
77
2007 W Series Chassis
WSM082106
overage to converter in and converter out to the cooler.
The TCC is now released.
If electrical power is interrupted while the transmission is
in fourth range (causing fi fth range converter operation)
and the manual selector valve is moved to Neutral (N),
the 4-5-6 clutch exhausts through the manual selector
valve to exhaust backfi ll, releasing the 4-5-6 clutch. The
3rd, 5th, and reverse clutch remains applied. With only
one clutch applied, the transmission goes to neutral.
If electrical power is interrupted while the transmission is
in fourth range (causing fi fth range converter operation)
and the manual selector valve is moved to Reverse (R),
the 4-5-6 clutch exhausts through the manual selector
valve, releasing the clutch. The 3rd, 5th, and reverse
clutch remains applied. With only one clutch applied, the
transmission goes to neutral.
If electrical power is interrupted with the transmission
in fourth range, resulting in only fi fth range and neutral
operation, the engine may be shut down and restarted to
attain neutral, third, and reverse operation.
