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Home > Ordnance Documents and other related manuals > > Figure 1-26. Output Speed Governor
Figure 1-23. Lockup Clutch Cutoff Valves.
Figure 1-27. Modulator Valve

Introduction to the X1100-3B Transmission, M1A1 Abrams Tank
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j. Cooler  Bypass  Valves  (fig.  1-25).
The  two  cooler  bypass
valves are pressure and thermo regulating valve assemblies located in
the input module.
When  hydraulic  pressure  (directed  to  the  cooler)  exceeds  the
calibrated spring force in the valve assembly, the valve opens and
allows oil to bypass the cooler.  When the oil reaches approximately
150ƒF, the valve closes and directs the oil to the cooler.
k. Output  Speed  Governor  G2  (fig.  1-26).
The  output  speed
governor assembly is a centrifugal (flyweight) governor driven by a
gear integral with the rear carrier output shaft.  A bore and cover
in the right output support this valve.
Figure 1-25.
Cooler Bypass Valve.
Rotation of the governor causes the governor valve to travel within
its bore.  When the valve moves right, governor pressure rises.  When
the valve moves left, governor pressure falls.  Governor pressure is
proportional to range output speed.
Figure 1-26.
Output Speed Governor.
32
OD1710






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