HY13-1527-M1/US
Torqmotor™ Service Procedure
TF, TG, TH and TL Series
Parker Hannifin Corporation
Hydraulic Pump/Motor Division
Greeneville, TN 37745 US
3
Definitions ................................................................................................................................................................ 3
Design Features .................................................................................................................................................4 - 5
Introduction ............................................................................................................................................................. 5
Troubleshooting Guide ............................................................................................................................................ 6
Troubleshooting Checklist ....................................................................................................................................... 7
Tools and Material Required for Servicing............................................................................................................... 8
Bolt Torque .............................................................................................................................................................. 9
Exploded Assembly View .................................................................................................................................10-11
TF Service Parts List Chart...............................................................................................................................12-13
TG Service Parts List Chart ..............................................................................................................................14-15
TH Service Parts List Chart ..............................................................................................................................16-17
TL Service Parts List Chart .................................................................................................................................... 18
Disassembly & Inspection ................................................................................................................................19-26
Torqmotor™ Assembly .....................................................................................................................................27-37
Rotor Set Component Assembly Procedure (One Piece Stator) ........................................................................... 37
Rotor Set Component Assembly Procedure (Two Piece Stator) ......................................................................38-39
Final Checks .......................................................................................................................................................... 40
Hydraulic Fluids, Filtration, Oil Temperature ......................................................................................................... 40
Tips for Maintaining the System ............................................................................................................................ 41
Offer of Sale .................................................................................................................................Inside Back Cover
Definitions
NOTE:
A NOTE provides key information to make a procedure easier or quicker to complete.
CAUTION:
A CAUTION refers to procedure that must be followed to avoid damaging the Torqmotor™ or other system
components.
WARNING:
A WARNING REFERS TO PROCEDURE THAT MUST BE FOLLOWED FOR THE SAFETY OF THE
EQUIPMENT OPERATOR AND THE PERSON INSPECTING OR REPAIRING THE TORQMOTOR™.
Disclaimer
This Service Manual has been prepared by Parker Hannifin for reference and use by mechanics who have been trained to re-
pair and service hydraulic motors and systems on commercial and non-commercial equipment applications. Parker Hannifin
has exercised reasonable care and diligence to present accurate, clear and complete information and instructions regard-
ing the techniques and tools required for maintaining, repairing and servicing the complete line of Parker TF, TG, TH and TL
Torqmotor
TM
Units. However, despite the care and effort taken in preparing this general Service Manual, Parker
makes no
warranties
that (a) the Service Manual or any explanations, illustrations, information, techniques or tools described herein
are either accurate, complete or correct as applied to a specific Torqmotor™ unit, or (b) any repairs or service of a particular
Torqmotor™ unit will result in a properly functioning Torqmotor™ unit.
If inspection or testing reveals evidence of abnormal wear or damage to the Torqmotor™ unit or if you encounter circum-
stances not covered in the Manual, STOP – CONSULT THE EQUIPMENT MANUFACTURER’S SERVICE MANUAL AND WAR-
RANTY. DO NOT TRY TO REPAIR OR SERVICE A TORQMOTOR™ UNIT WHICH HAS BEEN DAMAGED OR INCLUDES ANY
PART THAT SHOWS EXCESSIVE WEAR UNLESS THE DAMAGED AND WORN PARTS ARE REPLACED WITH ORIGINAL
PARKER REPLACEMENT AND SERVICE PARTS AND THE UNIT IS RESTORED TO PARKER SPECIFICATIONS FOR THE
TORQMOTOR™ UNIT.
It is the responsibility of the mechanic performing the maintenance, repairs or service on a particular Torqmotor™ unit to (a)
inspect the unit for abnormal wear and damage, (b) choose a repair procedure which will not endanger his/her safety, the
safety of others, the equipment, or the safe operation of the Torqmotor™, and (c) fully inspect and test the Torqmotor™ unit
and the hydraulic system to insure that the repair or service of the Torqmotor™ unit has been properly performed and that the
Torqmotor™ and hydraulic system will function properly.
Table of Contents