TRANSMISSION AND TORQUE CONVERTER CD3340B/YB4411
7-10
Published 04/07/2015 Control # 569-00
Clutch Operation
The transmission’s reverse high and reverse low clutch
assemblies (Figure 7-5) are operated by the double solenoid
valve.
In neutral, the flow of pressurized oil to the clutches is
blocked by the solenoid valve.
When energized, the solenoid valve, depending on which
coil is energized, diverts pressurized oil through the shaft to
the appropriate clutch in the assembly. Oil from the other
clutch is vented back to tank through the solenoid valve
spool.
NOTE: The forward high and forward low clutch assembly
operates the same way.
The mainshaft and layshaft assemblies each have a single
clutch. The principle of operation is similar to the Forward/
Reverse, High/Low clutch assemblies; i.e. the mainshaft/
layshaft solenoid valve diverts pressurized oil to either the
mainshaft clutch or the layshaft clutch.
A0794
FIGURE 7-5
Reverse High/Low
Clutches
Solenoid Valve
Reference Only
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