Inspect block spring and washers
Washer
Cylinder block spring
Spring retainer
Retaining ring
P101 472
Cylinder Block
Examine the running face of the cylinder block. The surface should be smooth and free of nicks and burrs.
Ensure that no scratches or grooves exist; these may drastically reduce output flow.
Cylinder block rework specifications are given in
ReWork Specifications
520L1033.
Inspect cylinder block
Cylinder
block
P106 132E
Check for burrs
Shaft
Check to see that the shaft and its splines are straight and free of damage or heavy wear. Inspect the shaft
surface where it meets the shaft seal. Replace the shaft if a groove exists at the sealing land surface where
it meets the shaft seal. Clean the sealing area with a nonabrasive material if necessary. Lubricate the shaft
with a light coat of hydraulic fluid before reassembly.
Inspect shaft
E101 375E
Shaft Bearing
Clean bearing with a solvent and lubricate with hydraulic fluid. Inspect for wear, or pitting. Rotate the
bearing in your hand. Replace if it does not rotate smoothly.
Repair Instructions
H1 45/53/60/68 Closed Circuit Axial Piston Pumps
Inspection
22
520L0957 • Rev CB • September 2014
