Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Legacy 2000-2003 Approved Subaru Legacy 2000 2000 Service Manual MECHANISM AND FUNCTION SECTION Automatic Transmission and Differential MSA5TCD00L18193

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MSA5TCD00L18193


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                     LEGACY (W2260BE_SGML Complete)



3-2     [M6A0]                MECHANISM AND FUNCTION
6. Low Clutch


6. Low Clutch
A: CONSTRUCTION
The low clutch consists of a clutch drum, clutch piston, return spring, cover, drive plates, driven
plates, etc.
The low clutch drum is manufactured by pressing sheet metal. The clutch drum, outer race and
sleeve are welded together by the electron beam welding technique.




                                                                                          B3H0898A



  (1) Snap ring                    (7) Cover                       (13) Needle bearing
  (2) Retainer                     (8) Spring retainer             (14) Snap ring
  (3) Drive plate                  (9) Lathe cut seal ring         (15) One-way clutch
  (4) Driven plate                (10) Low clutch piston           (16) Snap ring
  (5) Dish plate                  (11) Lathe cut seal ring
  (6) Snap ring                   (12) Low clutch drum




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              LEGACY (W2260BE_SGML Complete)



                              MECHANISM AND FUNCTION                                  [M6B0]     3-2
                                                                                        6. Low Clutch


B: FUNCTION
The low clutch operates in "D" (1st, 2nd, 3rd speed), "3" (1st, 2nd, 3rd speed), "2" and "1" ranges.
This clutch engages when the hydraulic pressure from the transmission control valve is applied
to the low clutch piston, transmitting the power to the reduction drive shaft.
A cover is placed inside the piston, and the space between the low clutch piston and the cover
is filled with ATF. The centrifugal force of this ATF, when the low clutch is not in engagement, acts
to cancel the centrifugal force generated by ATF remaining in the oil chamber in the low clutch
piston, which otherwise is likely to push the piston, preventing the clutch from being disengaged
completely.
When the low clutch is in operation, the piston is not pushed back because a large hydraulic pres-
sure is being applied on it, thereby the low clutch being kept engaged.




                                                                                            B3H0899A



     (1) Low clutch drum                               (3) Spring retainer
     (2) Low clutch piston                             (4) Cover




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