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. If parts are difficult to fit during assembly, tap gently with a soft hammer (never use an iron hammer).
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