NOTE: pump and motor valve plates are
very similar in appearance,but are not
interchangeable.Note shape of valve
plates when removing.Valve plates
are not fastened to back plate,but may
adhere slightly because of oil between
the machined surfaces.
2.Remove valve plate from the back plate.
3.Remove two dowel pins.
NOTE: Unless spring pin used to locate
valve plate is damaged or loose, do
not remove.If replacement is
3. Remove cam washer from back of motor
housing.
Shaft Removal and Disassembly.
Spring pin
Dowel pin
Motor valve plate
necessary, use care not to scratch the
machined surface of the back plate.
Rotating Unit Removal and Disassembly:
1.Invert the motor and remove the rotating
assembly from the housing
2.If the pistons did not come out with piston
block,remove the pistons along with the
spider and pivot.
1.Remove the internal snap ring retaining
the seal.
2.Gently tap the shaft with a plastic hammer
until the seal release from the housing.
NOTE: Use care when removing shaft from
housing to prevent shaft from falling
to floor and being damaged.
4-33
Seal
Internal snap ring
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