Case 580SR Service Manual page 629

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Precautions to be taken for replacing the spool lip
seal.
Z Place the spool in the working section.
Z Slide the lip seal perpendicularly onto the spool,
positioning the metal part of the lip seal on the out-
side of the spool.
S WARNING
The lip seal must be fitted on the end of the spool so
that it is not damaged by the spool grooves (N) and
its tightness is not damaged.
Mechanical detent system spool
Disassembly
Z Remove the tongue and the cover sides.
Z Use a spool clamp (G) and a vice to secure the
spool.
Z Using a metal rod (minimum length = 80 mm, diam-
eter 6) push the central ball (H) while extracting the
detent bush (I).
Z Mark the orientation of the detent bush for the reas-
sembly.
Z Remove the balls (J) and the spring (K) from the
adapter (M).
Reassembly
Z Introduce the spring (K) into the adapter (M).
Z Place the 3 balls (J) into the radial holes of the
adapter (M) and use grease to prevent them from
falling.
Z Position the central ball (H) against the spring (K).
Z Slip the detent bush (I) onto a metal rod.
Z Using the metal rod, press the central ball (H) into
the adapter (M), then slide the detent bush (I) onto
the adapter, making sure that the 3 balls are still in
place.
NOTE: make sure that the orientation of the detent
bush is respected.
SECTION 35 - HYDRAULIC SYSTEM
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