Toro Dingo TX 525, Service Manual

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HYDRAULIC SYSTEM
6-82 Rev. 000 TX525 Service Manual
19. Turn the valve in the vise sideways. Remove the tilt
spool by twisting and pulling the spool from the top
of the valve (Fig. 1143).
Before replacing the spool, clean and inspect
the inner bore for damage. Check the condi-
tion of the o-rings, particularly for metallic
particles embedded in the o-ring surface.
Damage to o-ring grooves, particularly on the
sealing surface, is unacceptable. In the event
that an unacceptable condition occurs, the
valve needs to be replaced (Fig. 1145).
Fig 1143 PICT-2621a
Fig 1145 PICT-2624a
21. Using a tool with a 90° angle, (for example, a snap
ring pliers with 90° tips) remove both the spool valve
seals located at the top of the valve (Fig. 1146).
20. Remove the lift spool by twisting and pulling the
spool from the valve (Fig. 1144).
Note: Visually inspect spool outside surfaces for
scratches. Deep scratches are unacceptable
and the spool needs to be replaced.
Scratches that are deep enough to catch the
fingernail are also unacceptable, and the
spool needs to be replaced.
Fig 1146 PICT-2628
Fig 1144 PICT-2622a
A. Lift Spool with small relief holes
B. Tilt Spool
A
B