Takeuchi TL150, Руководство по ремонту

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IV-15
HYDRAULIC UNITS
HST PUMP
22. Disassemble the servo piston.
The servo piston should not be disassem-
bled unless required for cleaning up foreign
matter or replacing damaged components.
a. Remove the piston rings (21) from the servo
piston (20).
b. Remove the nuts (49 and 50) from the tie bolt
(16).
c. Attach the nut (49) to the tie bolt (16), and
tighten the nut (49) manually to compress the
spring.
• Hold the tie bolt by an cap wrench to pre-
vent it from turning.
• Tighten the nut until no load is applied to
the snap ring (48).
d. Remove the snap ring (48).
e. Remove the spring assembly.
f. Remove the nut (49).
g. Remove the spring guide (51), the spring
(52), and the spring guide (53) from the tie
bolt (16).
Valves
1. Remove the charge check and high pressure re-
lief valve.
a. Remove the valve seat plugs (1) from the
pump housing.
b. Remove the check poppet or relief valve as-
semblies (2) from the pump housing.
• The smaller end of each conical spring (3)
is crimped to retain it on the check poppet
or relief valve. Do not remove.
S3F318
16
48
20
49
50
21
21
S3F319
49
16
48
S3F320
16
51
52
53