Dodge RAM 1500 1998 Owner's Manual page 2098

DR
PISTONS (Continued)
PISTON TRAVEL
The relationship between hydraulic lever and a
mechanical lever is the same. With a mechanical lever
it's a weight-to-distance output rather than a pressure-to-
area output. Using the same forces and areas as in the
previous example, the smaller piston (Fig. 113) has to
move ten times the distance required to move the larger
piston one inch. Therefore, for every inch the larger pis-
ton moves, the smaller piston moves ten inches. This
principle is true in other instances also. A common
garage floor jack is a good example. To raise a car weigh-
ing 2000 lbs., an effort of only 100 lbs. may be required.
For every inch the car moves upward, the input piston at
the jack handle must move 20 inches downward.
PLANETARY GEARTRAIN
DESCRIPTION
The planetary geartrain is located behind the 4C
retainer/bulkhead, toward the rear of the transmis-
sion. The planetary geartrain consists of three pri-
mary assemblies:
1 - BEARING NUMBER 8
2 - BEARING NUMBER 9
3 - REACTION PLANETARY CARRIER
4 - REACTION SUN GEAR
AUTOMATIC TRANSMISSION - 45RFE/545RFE
Fig. 114 Reaction Planetary Geartrain
5 - BEARING NUMBER 7
6 - THRUST PLATE (SELECT)
7 - BEARING NUMBER 6
8 - REACTION ANNULUS
Fig. 113 Piston Travel
• Reaction (Fig. 114).
• Reverse (Fig. 115).
• Input (Fig. 115).
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