TYM T233 HST, Руководство по обслуживанию

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2. Hydrostatic Transmission Inspection
1.Inspect the bronze side of the valve plate for wear.
Replace the valve plate if any wear, scoring or
scratched exist.
2. Inspect the cylinder block surface that makes
contact with valve plate. This surface should be
smooth and free of deep scratches.
4. Inspect the outside of the pistons. Replace if
scored of worn.
5. Inspect the shoes. Replace if loosed on the ball
end of piston or if shoe face area is worn or
damaged.
6. Inspect the retainer. Replace if worn in the area
where it contacts the retainer.
7. Inspect the spherical bush. Replace if worn or
damaged.
8. Inspect the spring. Replace if necessary.
Note : The inspection method for rotary parts of
pump and motor is same.
9. Inspect the shaft of pump for damage on the
bearing surfaces or in the splined areas.
Shaft(Pump)
Cylindrical roller bearing
Seal Cover
O-Ring
4-25
3. Check the piston movement in the bore. If the
pistons are sticky in the bore, examine the bore
for scoring of contamination.
10. Inspect oil seal of interior seal cover. Replace
worn or damaged parts as required, if necessary.
11. Inspect the shaft of motor for damage on the
bearing surfaces or in the splined areas.
12. Inspect needle bearings, ball bearing and oil seal
in the body. Replace them if necessary. If the
bearing was removed from the body, new one
can be pressed. Be sure that the numbers on the
bearing race are facing to the outside of the body.
Also, replacement of oil seal is same procedure.
Cylindrical roller bearing
Seal Cover
O-ring
Oil seal