HY13-1527-M1/US
Torqmotor™ Service Procedure
TF, TG, TH and TL Series
Parker Hannifin Corporation
Hydraulic Pump/Motor Division
Greeneville, TN 37745 US
24
Check coupling
shaft for rust or
corrosion
14. Check exposed portion of coupling shaft
(12) to be sure you have removed all signs
of rust and corrosion which might prevent
its withdrawal through the seal and bearing.
Crocus cloth or fine emery paper may be
used. SEE FIGURE 18. Remove any key
(12A), nut (12B), washer (12C), bolt (12D),
lock washer (12E), or retaining ring (12F).
Remove
& inspect
coupling shaft
15. Remove coupling shaft (12), by pushing on
the output end of shaft. SEE FIGURE 19.
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 20. 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
replacement.
Remove seal
ring from
housing
16. Remove and discard seal ring (4) from
housing (18).
Figure 20
Figure 19
Figure 18
Disassembly and Inspection
Inspection Areas
