Case 580SR Service Manual page 628

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38
Disassembly and reassembly mechanical control spool
Disassembly
Z Remove the screws (A), the boot along with its
plate (B) and the plate (C).
Z Remove the mounting screws (D) and the cover
(E).
Z Remove the spool (F) from the valve section.
Z Remove the lip seal (L).
Z Use a spool clamp (G) and a vice to secure the
spool.
Z Heat the spool to 200 °C in an oven or with a heat
gun.
Z Remove the adapter (H), the retainers (I), the
spring (J), the plate (K) and the lip seal (L).
Z Remove the tongue (M) if necessary.
Reassembly
Z Reassemble parts in reverse order after greasing
the spring.
Z Position the metal part of the lip seal (L) on the out-
side of the spool.
Z 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.
Z Slide the lip seal perpendicularly onto the spool.
Z Tighten the screws (A and D), the adapter (H) and
the tongue (M) from 9 to 11 Nm.
SECTION 35 - HYDRAULIC SYSTEM
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