Parker PGP 505 User manual
Service Manual
PGP/PGM500
Effective: July 3, 2013
Supersedes: All Others
Service Manual HY09-SM500/US
PGP/PGM500 Series
Parker Hannifin Corporation
Gear Pump Division
Kings Mountain, North Carolina USA
2
FAILURE OR IMPROPER SELECTION OR IMPROPER USE OFTHE PRODUCTS AND/OR SYSTEMS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL
INJURY AND PROPERTY DAMAGE.
This document and other information from Parker Hannifin Corporation, its subsidiaries and authorized distributors provide product and/or system options for further investigation by users
having technical expertise.It is important that you analyze all aspects of your application and review the information concerning the product or system in the current product catalog.Due
to the variety of operating conditions and applications for these products or systems, the user, through its own analysis and testing, is solely responsible for making the final selection of
the products and systems and assuring that all performance, safety and warning requirements of the application are met.
The products described herein, including without limitation, product features, specifications, designs, availability and pricing, are subject to change by Parker Hannifin Corporation and
its subsidiaries at any time without notice.
Offer of Sale
The items described in this document are hereby offered for sale by Parker Hannifin Corporation, its subsidiaries or its authorized distributors.This offer and its acceptance are governed
by the provisions stated in the “Offer of Sale”.
© Copyright 201 2, Parker Hannifin Corporation, All Rights Reserved.
WARNING
Legal Notification
Catalog HY09-SM500/US
General Information PGP/PGM500 Series
Service Manual
Parker Hannifin Corporation
Gear Pump Division
Kings Mountain, North Carolina USA
3
505/511
Service Manual
General Instructions
These service instructions will familiarize
you with Parker’s single and multiple pumps:
•their component parts
•the relative position of each part
•proper methods for assembly or
disassembly of the units
To facilitate the repair of these units and before any
work is done, we suggest that you first read all of the
steps used in disassembly and assembly.
Dirt is the enemy of any hydraulic system.The first
requirement for good maintenance of hydraulic
equipment is cleanliness.MAKE SUREYOU
DISASSEMBLE AND ASSEMBLEYOUR
HYDRAULIC EQUIPMENT IN A CLEAN AREA.
The pictures show a Model PGP511.Notes in the
text cover variations between this unit and the
other models.
It is important to airblast all parts and wipe them with
a clean, lintless cloth before assembly.
USE CAUTION IN GRIPPING ALL PARTS
IN THE VISE TO AVOID DAMAGING
MACHINED SURFACES.
A pump must be driven in the direction of rotation for
which it was built; otherwise, pressure will blow the
shaft seal. Check the exploded view and notes at right
for proper direction of rotation.
Parker’s Replacement Parts
Parker’s replacement parts are of original equipment
standards.For assured quality of material and work-
manship, and for compatibility in assembly, USE ONLY
GENUINE PARTS.
Check all replacement parts before installing them to
be certain that they were not damaged in shipment.
Catalog HY09-SM500/US
General Instructions PGP/PGM500 Series
Service Manual
Single Pump
Parker Hannifin Corporation
Gear Pump Division
Kings Mountain, North Carolina USA
4
1
2
3
3
4
5
6
7
8
9
10
9
6
5
4
11
12
13
13
12
PGP/PGM500 ExplodedView
Catalog HY09-SM500/US
PGP/PGM500 ExplodedView PGP/PGM500 Series
Service Manual
ITEM QTY DESCRIPTION
1 1 SEAL, LIP
2 1 MOUNTING FLANGE
3 2 PIN, DOWEL
4 2 SEAL, BK-UP
5 2 SEAL, CHAN
6 2 THRUST BLOCK
7 1 GEAR, DRIVE
8 1 GEAR, DRIVEN
9 2 SEAL, O-R
10 1 GEAR HOUSING
11 1 PORT END COVER
12 4 WASHER
13 4 CAPSCREW
Parker Hannifin Corporation
Gear Pump Division
Kings Mountain, North Carolina USA
5
Tool List
•Arborpress
•Awl
•Clean,lintlesscloths
•Deburringtool(anoldlewith
cutting teeth ground off)
•Machinist’shammer
•Softhammer
•MediumgritCarborundurnstone
•Sealremovaltool(SeeB)
Special Mylar Sleeve
The special mylar sleeve is used
to insert the drive shaft through
the lip seal without damage.The
drawing and chart give details for
making this special tool.
NOTE: Please see tool list for
lip seal bar installation.
PGP/PGM
505
PGP/PGM
511
Seal Removal Tool
Easily made from
an old screw driver.
Heat the tip and
bend as shown.
Grind the tip to fit
the notch behind
the shaft seal.
B
Catalog HY09-SM500/US
Tool List PGP/PGM500 Series
Service Manual
A B C
2.71 - 3.190 0.631 - 0.634 0.634 - 0.635
2.940 - 3.000 0.690 - 0.694 0.698 - 0.702
•Oilandgrease
•Snapringpliers
•Prickpunch
•Scale(1/32”or1/64”graduations)
•Smallscrewdriver
•Torquewrench
•Visewith6”minimumopening.
•
Bar for lip seal installation
•Specialmylarsleeve(seesketch)
"C"
"B"
"A" LENGTH
O.D.
I.D.
Parker Hannifin Corporation
Gear Pump Division
Kings Mountain, North Carolina USA
6
Seal InstallationTools
Catalog HY09-SM500/US
Seal InstallationTool PGP/PGM500 Series
Service Manual
PGP/PGM
505
PGP/PGM
505
PGP/PGM
511
PGP/PGM
511
PGP/PGM
511
PGP/PGM
511
SEC DESCRIPTION A B C D E F G H
SEC DESCRIPTION A B C D E F
SEC DESCRIPTION A B C D E F G
A1, A2 Integral Shaft 0.946 3.500 0.630 0.275 0.748 0.040 30° 0.060
L5 Continental Shaft 1.024 3.500 0.630 0.275 0.748 0.040 30° 0.060
H2 Integral Shaft 0.786 1.368 0.295 0.974 0.500 3.250
H3 Integral Shaft 0.786 1.368 0.295 0.516 0.500 4.000
L2 Continental Shaft 1.8 1.400 1.750 2.000 3.200 8.250 0.750
L3 Continental Shaft 1.8 1.400 2.500 2.750 3.200 8.250 0.750
E
C
F D
H
B
G
A
Constructed from mild steel
Polish this end
Parker Hannifin Corporation
Gear Pump Division
Kings Mountain, North Carolina USA
7
Start Disassembly Here
CAUTION:
1. If prying off sections becomes necessary, take extreme care not to mar or damage machined surfaces.Excessive force while prying
can result in misalignment and seriously damage parts.
2.Ifpartsaredifculttotduringassembly,tapgentlywithasofthammer(neveruseanironhammer).
3. Handle with care to avoid damage to the journals or teeth. Avoid touching gear journals.
1) Place the unit in a
vise with the drive shaft
pointIng down. Caution:
DO NOT GRIP ON OR
NEAR ANY MACHINED
SURFACES DURING
ASSEMBLY OR
DISASSEMBLY.
Match-mark all sections.
Be sure to align
these marks when
reassembling.
4) Remove gear housing.
If prying is necessary, be
careful not to damage
the machined surfaces.
5) Mark bushing blocks
top and bottom. Remove
the bushing block.Examine
and replace if necessary.
See wear guide page
12
.
6) Match mark gears.
2) Use a metric wrench
to remove the 4 cap
screws.
3) Lift off the port
end cover.If prying is
necessary, be careful not
to damage the machined
surfaces.
Catalog HY09-SM500/US
Disassembly Information PGP/PGM500 Series
Service Manual
Parker Hannifin Corporation
Gear Pump Division
Kings Mountain, North Carolina USA
8
7)
Carefully remove the
drive and driven gears.
Avoid tapping the gear
teeth together or against
other hardened surfaces.
Examine and replace if
necessary.(Seepage12).
8) Carefully remove the
bushing blocks from the
bottom of body. Examine
and replace if necessary.
(Seepage
12
)
9) Remove the snap ring
(locatedinfrontofthe
shaft seal).
10) Pry out the shaft
seal. Be careful not
to damage seal bore
in flange.
11) Inspect all
bushings for scoring
or discoloration and
replace if necessary.
Catalog HY09-SM500/US
Disassembly Information PGP/PGM500 Series
Service Manual
Parker Hannifin Corporation
Gear Pump Division
Kings Mountain, North Carolina USA
9
Start Assembly Here
2)
Place a new shaft
seal on the installation
tool with the spring side
facing outward.
5) Check the section
seal. Use of a new one
is recommended in each
case.Grease the new
section seal to hold it in
the groove.
3) Press seal to a depth that
is just deep enough to allow
installation of the snap ring.
1) Clean seal bore
thoroughly.When
installing metal OD
seals apply adhesive
to the seal OD and the
bore ID.Rubber OD
seals do not require
adhesive, instead a
lubricant should be
used on the OD.
4)
Assemble the
snap ring. A new snap
ring should be used if
supplied in the seal kit.
Catalog HY09-SM500/US
Assembly Information PGP/PGM500 Series
Service Manual
Parker Hannifin Corporation
Gear Pump Division
Kings Mountain, North Carolina USA
10
6) Assemble new sealing
parts, the rubber seal
first, the plastic seal
ontop.(Pumpthrust
block shown with seals
installed.)
NOTE:The seals face
the high pressure side
of the pump.
7)
Motor thrust block
with seals installed.
9)
Slide the mylar
shaft seal sleeve
over the drive shaft.
Lubricate the sleeve
with grease to
lubricate the shaft
seal during assembly.
8)
Assemble the front
thrust block into the
mounting flange,
sealing parts can be
fixed with grease.
Orientation is rotation
sensitive for pumps!
The instructions for proper installation for a 2 piece pump seal are as follows:
1. Turn the thrust blocks so the seal groove faces up
2. Place the soft black Buna-N seal into the seal groove with the flat side down
3. Place the hard nylon back-up seal, flat side up, into the groove on top of the Buna-N seal
Catalog HY09-SM500/US
Assembly Information PGP/PGM500 Series
Service Manual
The proper seal installation is very important.If these seals are assembled upside
down they will most likely fail in a short period of time under system pressure.
This manual suits for next models
3
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