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DRIVE RANGE - INTERMEDIATE (SECOND GEAR)
Intermediate Clutch - ON
Direct Clutch - OFF
Forward Clutch - ON
Low and Reverse Clutch - OFF
Intermediate Overrun Roller Clutch - LOCKED
Low and Roller Clutch - FREE WHEELING
Intermediate Overrun Band - OFF
As both vehicle speed and governor pressure increase, the force of governor
pressure (46 PSI @ W.O.T.) acting on the 1-2 shift valve overcome the force of
the 1-2 shift valve spring and modulator oil regulated by the modulator valve.
This allows the 1-2 shift valve to move to the upshifted position which directs
drive oil to apply the intermediate clutch. Oil in this passage is called (1-2)
clutch oil.
Intermediate (1-2) clutch oil from the 1-2 shift valve is directed to:
1. Intermediate Clutch
2. 2-3 Accumulator
Basic
Intermediate clutch oil flows from the 1-2 shift valve through the 2-3 accu
mulator. And then to the 1-2 accumulator which cushions intermediate clutch
application. The 1-2 accumulator has clutch apply pressure and a calibration
spring acting on one side with line pressure on the other side.
Summar
The forward and intermediate clutch are applied. The transmission is in drive
range 2nd gear. When in drive range the full throttle 1-2 upshift will occur at
approximately 50 MPH and minimum throttle 1-2 upshift will occur at approxi
mately 12 MPH.
