Service Manual

HY13-1512-006-M1/USA
Torqmotor™ Service Procedure
TC, TS, TB, TE, TJ, TF, TG, TH and TL Series
Parker Hannifi n Corporation
Hydraulic Pump/Motor Division
Greeneville, TN 37745 US
51
Final Checks
• Pressurize the Torqmotor™ with 100 p.s.i. dry air or nitrogen and submerge in solvent to check for
external leaks.
• Check Torqmotor™ for rotation. Torque required to rotate coupling shaft should not be more than
50 ft. lbs. (68 N m)
• On TC, TS, TB, TE & TJ Series Torqmotors, pressure port with “A” cast under it on housing (18) is for clock-
wise coupling shaft rotation as viewed from the output end of coupling shaft. Pressure port with “B” cast
under it is for counter clockwise coupling shaft rotation.
• On TF, TL, TG, & TH Series Torqmotors, pressure port with “B” cast under it on housing (18) is for clockwise
coupling shaft rotation as viewed from the output end of coupling shaft. Pressure port with “A” case under
it is for counter clockwise coupling shaft rotation.
• Use test stand if available, to check operation of the Torqmotor™.
Hydraulic Fluid
Keep the hydraulic system fi lled with one of the following:
• 10W40 SE or SF manufacturers suggested oil.
• Hydraulic fl uid as recommended by equipment manufacturer, but the viscosity should not drop below 50
SSU or contain less than .125% zinc anti-wear additives.
CAUTION: Do not mix oil types. Any mixture, or an unapproved oil, could deteriorate the seals. Main-
tain the proper fl uid level in the reservoir. When changing fl uid, completely drain old oil from the sys-
tem. It is suggested also that you fl ush the system with clean oil.
Filtration
Recommended fi ltration 20-50 micron.
Oil Temperature
Maximum operating temperature 200°F (93.3° C).
Final Checks