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SECTION 1. SPECIFICATIONS 1

General

Hydraulic Reservoir Capacity----------------------------------------------------------------36ℓ(9.51 us gal)

Pump or motor Roller Bearing( From back plate to Top surface of bearing)-------

---------------------------------------------------------------------2.0 mm±

±±

±0.3 mm(0.078 ±0.011 in)

Roller Bearing in Motor Housing(Recess From Top of Counter bore) ----------------

--------------------------------------------------------------------2.0 mm±

±±

±0.3 mm(0.078 ±0.011 in)

Spring pin in Back plate(From Back plate to Top surface of pin)--------------------4.0 mm(0.015 in)

HYDROSTATIC PUMP

Manufacturer-------------------------------------------------------------------------------------------------THI

Type---------------------------------------------------------------------------------------------------piston pump

Model---------------------------------------------------------------------------------------------------THST-20R

Displacement(Variable)(maximum/rev)---------------------------------------------25㎤ /rev(1.53 in³/rev)

Displacement(Engine at 2700rpm)-------------------------------------------67.7L/min(17.88 US gal/min)

Pressure relief Valve setting---------------------------------------------------------------34.0 MPa( 4978psi)

HYDROSTATIC MOTOR

Manufacturer-------------------------------------------------------------------------------------------------THI

Type------------------------------------------------------------------Fixed displacement Axial piston Motor

Displacement(Fixed)----------------------------------------------------------------- 25㎤ /rev(1.53 in³/rev)

Displacement( engine at 2700 rpm)-----------------------------------------67.7L/min(17.88 US gal/min)

TORQUE SPECIFICATIONS

Casing to back plate mounting Cap Screws-------------------------------- 470-666 N.m(347-491 lb-ft)

Forward and Reverse pressure Relief valve---------------------------- 1333-2000 N.m(983-1475 lb-ft)

Charge pressure Diagnostic port plug------------------------------------490-686 N.m(4339-6075 lb-in)

Pa Pressure Diagnostic port plug----------------------------------------- 490-686 N.m(4339-6075 lb-in)

Pb Pressure Diagnostic port plug ---------------------------------------- 490-686 N.m(4339-6075 lb-in)

4-1

TYM T233 HST User Manual

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