Pentair HYPRO 9300 Series - Repair Instructions; Pump Housing Disassembly; Pump Seal Removal

-8-
In the case of a severe pump seal leak, inspect the
Shaft/Bearing Assembly in the hydraulic motor for
possible contamination.
2. Using a 1/2’’ box end wrench, remove the four bolts
holding the Motor to the Mounting Flange. Remove
Motor. [Remove the Plastic Back Cover flange. Knock
the Seal out from back with a hammer and screwdriver.
Use a 1/2’’ socket wrench and 1/2’’ box end wrench to
remove the Mounting Flange from the Hydraulic Motor.]
Pump Housing Disassembly
Instructions in italics describe procedures for the Series
9300P Polypropylene Centrifugal Pumps, when different
than the cast iron pumps.
1. Using a 9/16” box end wrench, remove the four Hex
Head Bolts holding the Pump Casing to the Mounting
Flange. (If necessary, tap Pump Casing Outlet Port with
rubber mallet or hammer to separate.) [Using a 1/2”
wrench, remove the six bolts from the front. For the two
bottom bolts securing the base, you will need to hold the
two nuts with another 1/2” wrench. Also remove the 5/16”
screw from the rear, near the outlet port.]
2. To remove the Impeller Nut, insert a large screwdriver
or file (at least 10” [254 mm] long) into Impeller Vanes to
prevent Impeller from turning when loosening nut. Use a
5/8” socket wrench to remove the Impeller Nut by turning
it counterclockwise (See Figure 6). [Use 7/8” deep
socket wrench to remove Plastic Seal Nut, then 9/16”
deep socket to remove Metal Jam Nut and Washer.]
Figure 6
Figure 7
Hypro Repair Tools:
ToolBoxNo.3010-0168•1/4”AllenWrenchNo.3020-0008
SupportBars(2)No.3010-0064•PortBrushNo.3010-0066
1/16”AllenWrenchNo.3020-0009•BrushHolderNo.3010-0067•
LargeRetainingRing PliersNo.3010-0084 •SmallRetainingRing
Pliers No. 3010-0167
Shop Tools Needed:
BenchVice•ArborPress•AirorHandDrill•SmallKnife
Metal Pipe - 1” dia. x 4” high (Bearing Seating Tool)
PVC Pipe - 3/4” dia. x 4” - 6” high (Seal Seating Tool)
12”CrescentWrench•TwoFlatScrewdrivers(approx.10”long)
1/2’’,9/16”,5/8”and7/8”sockets•HammerorRubberMallet
SmallScrewdriver(recommended)•LargeFile(optional)
1/2”and9/16”BoxEndWrench•LubricatingSpray(WD-40orLPS)
SmallamountHydraulicOil•CleaningSolventTank(recommended)
3. Once nut [and washer] is removed, place a screwdriver
on each side behind the Impeller and pry away from
the Mounting Flange (See Figure 7). Remove Woodruff
KeyfromtheShaft.RemoveO-ringfromthe Mounting
Flange.
Pump Seal Removal
1. Lightly lubricate the Shaft for easier removal of the Seal.
Using two screwdrivers positioned opposite each other,
pry the rotary portion of the Seal from the Shaft (See
Figure 8).
Figure 8
Repair Instructions
NOTE:
Visit our website at
www.hypropumps.com
for video repair procedures,
under the Tools section.
L-1526 (12/12, Rev. B)