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
31
Remove &
inspect
rotor set &
wearplate
10. Remove rotor set (7) and wearplate (8),
together to retain the rotor set in its assem-
bled form, maintaining the same rotor vane
to stator contact surfaces. SEE FIGURE 19.
The drive link (9) may come away from the
coupling shaft (10) with the rotor set, and
wearplate. You may have to shift the rotor
set on the wearplate to work the drive link
out of the rotor (7) and wearplate (8). SEE
FIGURE 20. Inspect the rotor set in its as-
sembled form for nicks, scoring, or spall-
ing on any surface and for broken or worn
splines. If the rotor set component requires
replacement, the complete rotor set must
be replaced as it is a matched set. Inspect
the wearplate for cracks, brinelling, or scor-
ing. Discard seal ring (3) that is between the
rotor set and wearplate.
NOTE
NOTE: The rotor set (7) components may
become disassembled during service pro-
cedures. Marking the surface of the rotor
and stator that is facing UP, with etching
ink or grease pencil before removal from
Torqmotor™ will ensure correct reassem-
bly of rotor into stator and rotor set into
Torqmotor™. Marking all rotor compo-
nents and mating spline components for
exact repositioning at assembly will en-
sure maximum wear life and performance
of rotor set and Torqmotor™.
NOTE
NOTE: A polished pattern on the wear
plate from rotor rotation is normal.
SEE FIGURE 18
Check rotor,
vane clearance
11. Place rotor set (7) and wear plate (8) on a
flat surface and center rotor in stator such
that two rotor lobes (180 degrees apart) and
a roller vane centerline are on the same sta-
tor centerline. Check the rotor lobe to roller
vane clearance with a feeler gage at this
common centerline. If there is more than
.005 inches (0.13 mm) of clearance, replace
rotor set. SEE FIGURE 21 & 22.
NOTE
NOTE: If rotor set (7) has two stator
halves and two sets of seven vanes,
check the rotor lobe to roller vane clear-
ance at both ends of rotor.
Figure 20
Figure 21
Figure 19
Figure 18
Disassembly and Inspection
