Service Manual
P Series
iv
FOREWORD
Headquartered in Sullivan, Illinois, Hydro-Gear
is a world leader in the design, manufacture, and
service of quality hydrostatic transaxles for the
lawn and garden industry. The mission of our
company is to be recognized by our customers
and the industry as a world-class supplier and
the quality leader in everything we do.
This Service and Repair Manual is designed to
provide information useful in servicing the
Hydro-Gear 6cc (0.37 cu in.) PC Series, the 10
cc (0.61 cu in.) PG Series, the 12 cc (0.73 cu
in.) PJ Series, the 16 cc (0.98 cu in.) PR Series,
and the 21 cc (1.28 cu in.) PW Series pumps.
Also included is a glossary of terms that are
frequently used throughout the industry and in
Hydro-Gear service publications. Understand-
ing terminology is very important!
It is necessary, and good shop practice, that your
service area be equipped with proper tools and
the mechanics to be supplied with the latest
information available. All repair procedures illus-
trated in this guide are suggested, but
preferred methods of repair.
Some repair procedures require that the pump
be removed from the vehicle.
This is not a certification, test or study guide for
a certification test. If a technician is interested in
certification they should contact an agent
representing the OPEESA (Outdoor Power
Equipment and Engine Service Association)
(860-767-1770) or their Hydro-Gear Distribu-
tor. Many distributors will be hosting certifica-
tion testing. These study guides will cover most
of the products and manufacturers in our indus-
try.
For more information about Hydro-Gear or our
products, please contact your Central Service
Distributor, or call our Customer Service Depart-
ment at (217) 728-2581.