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

Preparation Before Disassembly

• Before you disassemble the Torqmotor™ unit or any of its components read this entire manual. It provides

important information on parts and procedures you will need to know to service the Torqmotor™.

• Determine whether the Torqmotor™ you are about to disassemble is the Small Frame Series TC, TS, TB, TE or

TJ or the Large Frame Series TF, TG, TL or TH so you can follow those procedures that pertain to that Series

Torqmotor™. The ﬁ rst two letters of the “spec” number on the Torqmotor™ identiﬁ cation tag is the Series des-

ignation. Also determine the type of end construction from the alternate views shown on the exploded view.

• The Small Frame Series TC, TS, TB & TE Torqmotors™ will have a 3.66 inch (92.9 mm) main body outside

diameter and ﬁ ve or six 5/16-24 UNF 2A cover bolts. The Medium Frame Series TJ Torqmotors™ will have a

3.66 inch (92.9 mm) main body outside diameter and six 5/16-24 UNF 2A cover bolts. The Large Frame Series

TF, TG, TL & TH Torqmotors™ will have a 5 inch (127.9 mm) main body outside diameter and seven 3/8 24

UNF 2A cover bolts.

• Refer to “Tools and Materials Required for Services” section for tools and other items required to service the

Torqmotor™ and have them available.

• Thoroughly clean off all outside dirt, especially from around ﬁ ttings and hose connections, before disconnect-

ing and removing the Torqmotor™. Remove rust or corrosion from coupling shaft.

• Remove coupling shaft connections and hose ﬁ ttings and immediately plug port holes and ﬂ uid lines.

• Remove the Torqmotor™ from system, drain it of ﬂ uid and take it to a clean work surface.

• Clean and dry the Torqmotor™ before you start to disassemble the unit.

• As you disassemble the Torqmotor™ clean all parts, except seals, in clean petroleum-based solvent, and blow

them dry.

WARNING: petroleum-base solvents are ﬂ ammable. Be extremely careful when using any solvent. Even a small

explosion or ﬁ re could cause injury or death.

WARNING: WEAR EYE PROTECTION AND BE SURE TO COMPLY WITH OSHA OR OTHER MAXIMUM AIR

PRESSURE REQUIREMENTS.

CAUTION: Never steam or high pressure wash hydraulic components. Do not force or abuse closely ﬁ tted parts.

• Keep parts separate to avoid nicks and burrs.

• Discard all seals and seal rings as they are removed from the Torqmotor™. Replace all seals, seal rings and

any damaged or worn parts with genuine Parker or OEM approved service parts.

Disassembly and Inspection