Parker Hydraulics PGM 300 Series Service Manual Download Page 15

PGP/PGM 300 Series

Service Manual HY09-SM300/US

15

Parker Hannifin Corporation
Gear Pump Division
Youngstown, OH

The Aerospace Group

is a leader in the development,
design, manufacture and
servicing of control systems
and components for aerospace
and related high-technology
markets, while achieving
growth through premier
customer service.

The Fluid Connectors
Group

 

designs, manufactures

and markets rigid and flexible
connectors, and associated
products used in pneumatic
and fluid systems.

The Hydraulics Group

designs, produces and
markets a full spectrum
of hydraulic components
and systems to builders
and users of industrial
and mobile machinery
and equipment.

The Automation Group

is a leading supplier of
pneumatic and electro-
mechanical components
and systems to automation
customers worldwide.

The Climate & Industrial
Controls Group

designs, manufactures and
markets system-control and
fluid-handling components
and systems to refrigeration,
air-conditioning and industrial
customers worldwide.

The Seal Group 

designs,

manufactures and distributes
industrial and commercial
sealing devices and related
products by providing
superior quality and
total customer satisfaction.

The Filtration Group

designs, manufactures and
markets quality filtration
and clarification products,
providing customers with
the best value, quality,
technical support, and
global availability.

The Instrumentation
Group

 

is a global leader

in the design, manufacture
and distribution of high-
quality critical flow
components for worldwide
process instrumentation,
ultra-high-purity, medical
and analytical applications.

Parker’s Charter

To be a leading worldwide manufacturer of components
and systems for the builders and users of durable
goods. More specifically, we will design, market and
manufacture products controlling motion, flow and
pressure. We will achieve profitable growth through
premier customer service.

Product Information

North American customers seeking product information,
the location of a nearby distributor, or repair services
will receive prompt attention by calling the Parker
Product Information Center at our toll-free number:
1-800-C-PARKER (1-800-272-7537). In the UK, a similar
service is available by calling 0500-103-203.

About Parker Hannifin Corporation

Parker Hannifin is a leading global motion-control
company dedicated to delivering premier customer
service. A Fortune 500 corporation listed on the
New York Stock Exchange (PH), our components
and systems comprise over 1,400 product lines that
control motion in some 1,000 industrial and
aerospace markets. Parker is the only
manufacturer to offer its customers a choice of
hydraulic, pneumatic, and electromechanical
motion-control solutions. Our
Company has the largest distribution network in its
field, with over 7,500 distributors serving more
than 350,000 customers worldwide.

Parker Hannifin Corporation

Summary of Contents for PGM 300 Series

Page 1: ...Service Manual PGP PGM315 330 350 365 Service Manual HY09 SM300 US Effective April 15 2002 Supersedes July 1 1998 PGP PGM 300 Series ...

Page 2: ...ormance 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 Corporatio...

Page 3: ...VOID 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 U...

Page 4: ... see sketch Special Steel Sleeve The special steel sleeve is used to insert the drive shaft through the lip seal without damage and can be made from bar stock For the PGP PGM315 use a 1 dia x 3 1 8 bar for the PGP PGM330 use a 1 1 8 or 1 1 4 dia x 4 5 8 bar for the PGP PGM350 use a 1 3 8 dia x 4 5 8 bar for the PGP PGM365 use a 1 1 2 dia x 4 5 8 bar The drawing and chart give details for making th...

Page 5: ...G ASSEMBLY OR DISASSEMBLY Match mark all sections Be sure to align these marks when reassembling 4 Remove the thrust plate Examine and replace if necessary See wear guide page 10 5 Carefully remove the drive and driven gears Avoid tapping the gear teeth together or against other hardened surfaces Keep these gears together because they are a matched set Examine and replace if necessary See page 10 ...

Page 6: ...t section gear housing Be careful not to damage machined surfaces Examine and replace if necessary see page10 13 Grip the shaft end cover in a vise with the mounting face down Remove double lip seal by inserting the special seal removal tool see Tool List into the notch between the double lip seal and the shaft end cover Tap the seal out and discard Remove and discard all rubber and polymer seals ...

Page 7: ...rrier should be assembled in the drive bores with the groove to the top of unit 12 o clock Assemble the bushings in the driven bores with the groove to the bottom of the unit 6 o clock The PGP PGM315 does not have grooved bushings therefore the bushing seams should be placed at the 12 and 6 o clock positions 8 See that dowel pins are in place in any new castings Examine all of the dowels Before in...

Page 8: ...ith a soft hammer until it rests tightly against the shaft end cover Be careful not to pinch the gasket seal Also be sure that the large rounded core is on the inlet side 16 Slip the thrust plate with the seal over the gear journals and into the housing bore The flat side of the seal should face up with the relief groove facing the outlet side For single pump assemblies go directly to Step 21 15 S...

Page 9: ...rs are in contact with the thrust plate face Place the port end cover plate in the housing per Step 16 For multiple assemblies only 20 Check the plug or plugs in the port end cover to be sure that they are tight Follow the procedure outlined in Step 4 for new plugs For multiple assemblies only 22 Thread the fasteners into the shaft end cover and tighten alternately or cross corner Rotate the drive...

Page 10: ...nation Wear or damage to splines keys or keyways necessitates replacement Thrust Plates The thrust plates seal the gear section at the sides of the gears Wear here will allow internal slippage that is oil will bypass within the pump A maximum of 002 wear is allowable Replace thrust plates if they are scored eroded or pitted Check center of thrust plates where the gears mesh Erosion here indicates ...

Page 11: ...al Recommendations A good quality hydraulic oil conforming to the characteristics listed above is essential to the satisfactory performance and long life of any hydraulic system The oil should be changed on regular schedules in accordance with the manufacturer s recommendations and the system periodically flushed The oil temperature in the reservoir must not exceed 200 F 93 3 C with a maximum temp...

Page 12: ...ve until the spring tension on the adjusting screw is relieved This will avoid the possibility of immediate damage to the replacement unit in the event that the relief valve setting had been increased beyond the recommended operating pressure prior to removing the old unit Before connecting any lines to the pump fill all ports with clean oil to provide initial lubrication This is particularly impo...

Page 13: ... immediately and locate the problem source Gradually increase pressure on pump in 500 psi increments until the desired test pressure has been reached This should take about five minutes Delivery should run close to rated catalog performance figures which are averaged from testing several pumps A 5 lower reading may be used as a rated minimum if new or relatively new parts have been used When rebui...

Page 14: ...all include without limitation accidents actsofGod strikesorlabordisputes acts laws rules or regulations of any government or government agency fires floods delays or failures in delivery of carriers or suppliers shortages of materials and any other cause beyond Seller s control 12 Entire Agreement Governing Law The terms and conditions set forth herein together with any amendments modifications a...

Page 15: ...technical support and global availability The Instrumentation Group is a global leader in the design manufacture and distribution of high quality critical flow components for worldwide processinstrumentation ultra high purity medical and analytical applications Parker s Charter To be a leading worldwide manufacturer of components and systems for the builders and users of durable goods More specifi...

Page 16: ...Parker Hannifin Corporation Gear Pump Division 1775 Logan Avenue Youngstown OH 44501 USA Tel 330 746 8011 Fax 330 746 1148 www parker com Service Manual HY09 SM300 US 04 02T M 2 5M ...

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