Case 580SR+ - Inspection; Overhaul; Specifications

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4 SECTION 17 - TORQUE CONVERTERS

1.2 SPECIFICATIONS

Torque converter ratio............................................................................................................................... 2.38:1

Weight ..................................................................................................................................................... 17.4 kg

Torque of retaining screws for transmission .............................................................................................58 Nm

Torque of retaining screw for flywheel ......................................................................................................41 Nm

Torque of screw for drive plate to the convertor........................................................................................53 Nm

Torque of screw for drive plate to the flywheel..........................................................................................41 Nm

Hydraulic tests

Tachometer setting .............................................................................................................................. 2000 rpm

Test temperature, oil ............................................................................................................................. 80-85 °C

Cold start valve (for reference only) .......................................................................................................... 26 bar

System pressure test .....................................................................................................................13.7-15.2 bar

Torque converter....................................................................................................................................7-11 bar

1.3 OVERHAUL

The torque converter, is a welded unit and cannot be

disassembled. The only maintenance performed on

the converter, other than the stall test, is cleaning

and visual inspection. A commercial torque convert-

er cleaner may be used to clean the converter. How-

ever, if a commercial cleaner is not available, the

converter should be cleaned as outlined below.

Z Drain as much oil as possible from the hub of the

converter by tilting the converter in all directions.

Z Fill the converter about half full, through the hub

(1), with paraffin base solvent or any cleaning sol-