HY13-1527-M1/US
Torqmotor™ Service Procedure
TF, TG, TH and TL Series
Parker Hannifin Corporation
Hydraulic Pump/Motor Division
Greeneville, TN 37745 US
23
NOTE
NOTE: Series TG or TH may have a
rotor set with two stator halves (8B &
8D) with a seal ring (4) between them
and two sets of seven vanes (8C & 8E).
Discard seal ring only if stator halves
become disassembled during the service
procedures.
NOTE
NOTE: A polished pattern on the wear
plate from rotor rotation is normal.
Check rotor,
vane clearance
11. Place rotor set (8) and wear plate (9) on a
flat surface and center rotor (8A) in stator
(8B) such that two rotor lobes (180 degrees
apart) and a roller vane (8C) centerline are
on the same stator 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
15.
NOTE
NOTE: If rotor set (8) has two stator
halves (8B & 8D) and two sets of seven
vanes (8C & 8E) as shown in the alternate
construction TG rotor set assembly
view, check the rotor lobe to roller vane
clearance at both ends of rotor.
Remove &
inspect
drive link
12. Remove drive link (10) from coupling shaft
(12) if it was not removed with rotor set and
wear plate. Inspect drive link for cracks and
worn or damaged splines. No perceptible
lash (play) should be noted between mating
spline parts. SEE FIGURE 16. Remove and
discard seal ring (4) from housing (18).
Remove thrust
bearing
13. Remove thrust bearing (11) from top of
coupling shaft. Inspect for wear, brinelling,
corrosion and a full complement of retained
rollers. SEE FIGURE 17.
Figure 17
Figure 16
Figure 15
Figure 14
Disassembly and Inspection
