HY13-1526-001-M1/US
Torqmotor™ Service Procedure
TC, TS, TB, TE and TJ Series
Parker Hannifin Corporation
Hydraulic Pump/Motor Division
Greeneville, TN 37745 US
33
Remove &
inspect
coupling shaft
16. Remove coupling shaft (10), by pushing on
the output end of shaft. SEE FIGURE 26 &
27. Inspect coupling shaft bearing and seal
surfaces for spalling, nicks, grooves, severe
wear or corrosion and discoloration. Inspect
for damaged or worn internal and external
splines or keyway. SEE FIGURE 28. Replace
coupling shaft if any of these conditions exist.
NOTE
NOTE
NOTE: Minor shaft wear in seal area is
permissible. If wear exceeds .020 inches
(0.51 mm) diametrically, replace
coupling shaft.
NOTE: A slight “polish” is permissible in
the shaft bearing areas. Anything more
would require coupling shaft replace-
ment.
Inspection Areas
Inspect
housing
assembly
17. Inspect housing (17) assembly for cracks,
the machined surfaces for nicks, burrs,
brinelling or corrosion. Remove burrs that
can be removed without changing dimen-
sional characteristics. Inspect tapped holes
for thread damage. SEE FIGURE 29. If the
housing is defective in these areas, discard
the housing assembly.
Figure 26
Figure 27
Figure 28
Figure 29
Disassembly and Inspection
Figure 30
Remove &
inspect thrust
washer &
thrust bearing
18. Remove thrust bearing (12) and thrust
washer (13). Inspect for wear, brinelling,
corrosion and a full complement of retained
rollers. SEE FIGURE 30.
The TJ series has a thrust bearing (12)
sandwiched between two thrust washers
(13) that cannot be removed from the hous-
ing (17) unless bearing (14) is removed for
replacement.