Bulletin HY13-1650-M1/USA
Piston Pump Service Procedure
P2 / P3 Series
Parker Hannifin Corporation
Hydraulic Pump/Motor Division
Greeneville, Tennessee US
6
Introduction
This service manual has one purpose: to guide you in
maintaining, troubleshooting, and servicing the P2 & P3
series piston pumps.
Material in this manual is organized so you can work on
the Pump and get results without wasting time or being
confused. To get these results, you should read this
entire manual before you begin any work on the Pump.
This manual also contains troubleshooting information
and checklist. If you must service the Pump, the
checklist will help you to determine where the problem
may be.
The three-column format of the Disassembly and
Inspection, and Assembly sections will make it easier
for you to conduct work on the Pump. Column 1 gives a
brief key for each procedure. Column 2 explains in
detail the procedure you should follow. Column 3
illustrates this procedure with photographs. Read all
material carefully and pay special attention to the
notes, cautions, and warnings.
Pages with the various pump sizes exploded assembly
view are provided several places in this manual. The
component part names and item numbers assigned on
these exploded assembly views correspond with names
and item numbers (in parentheses) used in the disas-
sembly and assembly procedures set forth in this
manual.
Service part list charts are also provided in this manual
with the part names and exploded view item numbers
cross referenced to Parker service part numbers.
Service parts are available through the Original Equip-
ment Manufacturer or Parker approved P2 & P3 Dis-
tributors.
As you gain experience in servicing the Pump, you may
find that some information in this manual could be clearer
or more complete. If so, let us know about it. Do not try to
second guess the manual. If you are stuck, contact us.
Servicing the Pump should be a safe and productive
procedure, in order for the unit to deliver the reliable, long-
life operation engineered into it.