Service Manual

HY13-1521-M2/US Service Manual
General Information Series HB Hydrostatic Transmission
Install bypass valves
Install the bypass valve. Push
valve directly in the bore of
the end block as far as it will
go.
Install the bypass valve
retaining ring, pliers
required
Install the snap ring securing
the bypass valve in the bore.
Place retaining ring on bypass
valve shaft and position into
the groove on the inside of
the bypass valve port.
Install the bypass valve
snap ring
Use the tip on the pliers to
make sure the retaining ring is
seated in the groove around
the entire circumference of
hole.
Install two dowel pins
Install the dowel pins by
sliding the pins into the bores
in the end block.
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Parker Hannifin Corporation
Hydraulic Pump/Motor Division
Greeneville, Tennessee USA