572R Pipelayer Power Train Caterpillar


Torque Converter and Pump Drive Housing

Usage:

572R 2HZ



Illustration 1g00402222

Torque for the two studs which is used to mount the pump to the case and frame ... 30 ± 4 N·m (22 ± 3 lb ft)

(1) Torque for four bolts that hold the cage to the cover ... 30 ± 4 N·m (22 ± 3 lb ft)

(2) Apply 7M-7260 Liquid Gasket to plug (2). Install the plug to the following depth below the flange surface. ... 1.25 ± 0.25 mm (0.05 ± 0.010 inch)

Note: The pump must turn freely before assembly of the pump to the case and frame and after assembly of the pump. ()

Table 1
Section     Function     Rotation     Output (min)     RPM     Pressure    
A     Torque Converter and Lubrication     Counterclockwise    
135 L/min (35 US gpm)    
1800    
1035 kPa (150 psi)    
B     Transmission and Controls     Counterclockwise    
70 L/min (18.2 US gpm)    
1800    
2760 kPa (400 psi)    
C     Transmission and Torque Converter Scavenge Line     Counterclockwise    
107 L/min (28 US gpm)    
1800    
70 kPa (10 psi)    



Illustration 2g00402223

(3) Clearance between the gears and the cover in Section "C" in a new pump ... 0.104 ± 0.043 mm (0.0041 ± 0.0017 inch)

(4) Clearance between the gears and the body in Section "B" of a new pump ... 0.104 ± 0.043 mm (0.0041 ± 0.0017 inch)

(5) Clearance between the gears and the cover in Section "A" of a new pump ... 0.107 ± 0.021 mm (0.0042 ± 0.0008 inch)

(6) Diameter of new shafts ... 31.742 ± 0.005 mm (1.2497 ± 0.0002 inch)

(7) Bore of new bearings ... 31.786 ± 0.008 mm (1.2514 ± 0.0003 inch)

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