IV-26
HYDRAULIC UNITSHST PUMP
Input Shaft
• The shaft and its spline must be straight and free
from any damage or wear.
• No annular groove should be found on the shaft
surface that contacts the shaft seal.
• No spalling should be found on the surface where
the shaft and the bearing contact.
Shaft Roller Bearing
• The bearing must rotate smoothly.
• If the presence of foreign matter is suspected,
clean the bearing and lubricate it with hydraulic
oil.
Swash Plate Bearings
• Do not replace the bearings on both sides of the
swash plate independently as they should be re-
placed as a cover assembly or a housing assem-
bly.
• The bearings must rotate smoothly.
• If the presence of foreign matter is suspected,
clean the bearing and lubricate it with hydraulic
oil.
When reassembling, the surface with the bear
-
ing number attached must be positioned 0.000 to
0.015 in. (0 to 0.38 mm) above the carrier sur-
face.
Swash Plate
• The surface of the swash plate must be smooth
and free from any projections or unusual wear.
• The diameter of the contact surface of the swash
plate bearing must be at least 0.98484 in. (25.015
mm).
• The difference of the thickness at both ends must
be at most 0.00200 in. (0.0508 mm).
• The flatness of the surface of sliding with the slip
-
per must be 0.00100 in. (0.0254 mm) or less.
S3F334E
Carrier
Bearing
Non-serviceable items
S3F345
A
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