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Specifications Information and Repair Parts Manual

IPT 2P5X, 2S5X, 2S5XC, 3S5X Series

2S5X-250-00

2/2018

Storing Pump

1. When pump is out of service for an extended period of time, completely

drain liquid from casing, store pump in a dry, protected, well-ventilated
area.

2. Add fuel stabilizer to engine fuel tank or drain fuel from tank. Turn fuel tank

valve to off position.

COMPLETE PUMP ASSEMBLY PROCEDURE

Reference Repair/Replacement Part Exploded View and Lists

NOTE:

Do not use petroleum based lubricants with EPDM rubber seal parts

and O-rings. Petroleum based products will damage EPDM components.

NOTE:

Apply a small amount of anti-seize lubricant to bore, threaded or keyed,

in impeller. If petroleum based anti-seize lubricant is used do not allow it to
contact EPDM components.

Install Seal Stationary Half

1. Lay bracket (Ref. No. 2) on a solid surface, engine mount down. Apply

silicone sealant (Loctite® RTV or similar) to outside metal case of shaft
seal stationary half (Ref. No. 8). Position in cast bore of the bracket with
polished seal ring up. Install by pressing on metal housing of the seal with
a piece of plastic pipe or similar stock until metal case lip seats against
bracket. Do not press on lapped seal surface to install.

Install Shaft Collar - 5/8-18 threaded “P” & “S” pumps and kits:

1. Install shaft collar (Ref. No. 10) on PTO shaft. Orient large inside diameter

chamfer towards PTO shaft shoulder. Slide collar down shaft until it
contacts PTO shaft shoulder.

Install Bracket

1. Lay engine (Ref. No. 1) down on recoil starter with PTO shaft up vertical.

Clean PTO shaft and mounting surface.

2. Install adapter gasket (Ref. No. 37) onto the PTO shaft.
3. Position bracket on engine. Fit locating diameter on back of bracket into

PTO bearing bore in engine crankcase cover. Make sure all four bolt

bosses on bracket sit flat on engine crankcase cover. Rotate until bracket

feet align with engine block mounting base.

4. Install four O-rings (Ref. No. 7) on four screws (Ref. No. 6). Install screws

through bracket into engine crankcase cover making sure O-rings seat in
cast counter bore of bolt hole. Torque screws to 140 in-lb.

Install Closed Impeller -5/8”-18 threaded “P” pumps

Install shaft sleeve (Ref. No. 9) on PTO shaft, slide down until it contacts

shaft collar.

2. Install shaft seal rotating half (Ref. No. 8) into bore in impeller (Ref. No.

11) hub. Lubricate rubber cup of the seal with soapy water. Position in
impeller hub bore with polished face out. Protect polished face of the seal
from damage with a piece of cardboard or cloth. Press seal into bore until
it bottoms.

3. Thread impeller onto PTO shaft until it bottoms against shaft sleeve. If

impeller back shroud hits inside of bracket before contacting shaft sleeve,
install shims (Ref. No. 12) between shaft sleeve and shaft collar until
clearance between impeller and bracket to 0.60” is achieved.

Install Closed Impeller -3/4”-16 threaded “P” pump kits

1. Install shaft seal rotating half (Ref. No. 8) into bore in impeller (Ref. No.

11) hub. Lubricate seal’s rubber cup with soapy water. Position in impeller
hub bore with polished face out. Protect seal’s polished face from damage
with a piece of cardboard or cloth. Press seal into bore until it bottoms.

2. Thread impeller onto PTO shaft until it bottoms against bottom of bore in

impeller. If impeller back shroud hits inside of bracket before contacting
end of PTO shaft, install shims (Ref. No. 12) between impeller and end of
PTO shaft until 0.60” clearance between impeller and bracket is achieved.

NOTE:

The .060 clearance is critical to prevent interference of the impeller

hitting the bracket potentially caising the pump to seize.

Install Closed Impeller -3/4” keyed “P” pump kits

1. Temporarily install impeller (Ref. No. 11) on PTO shaft. If impeller hits

inside of bracket before bottoming against PTO shaft end insert shims
(Ref. No. 12) between end of PTO shaft and impeller until 0.60” clearance
is achieved. Remove impeller from PTO shaft.

NOTE:

The .060 clearance is critical tp prevent intyerference of the impeller

hitting the bracket potentially caising the pump to seize.
2. Insert key (Ref. No. 14) into impeller keyway.
3. Install shaft seal rotating half (Ref. No. 8) into bore in impeller hub.

Lubricate rubber cup of the seal with soapy water. Position in impeller hub
bore with polished face out. Protect polished face of the seal from damage
with a piece of cardboard or cloth. Press seal into bore until it bottoms.

4. Install O-ring (Ref. No. 16) into bore in front of impeller nose. Slide

impeller screw (Ref. No. 15) into through hole. If required install shims
inside impeller bore, position on exposed screw end.

5. Align key with PTO shaft keyway. Slide impeller onto PTO shaft. Fix on

shaft with screw. Torque screw to 140 in-lb.

Install Semi-Open Impeller -5/8”-18 threaded “S” pumps and kits

Install shaft sleeve (Ref. No. 9) on PTO shaft, slide down until it contacts

shaft collar.

2. Install shaft seal rotating half (Ref. No. 8) into bore in impeller hub.

3. Thread impeller onto PTO shaft until impeller bottoms against end of shaft

sleeve. If impeller rear shroud contacts bracket first remove impeller. Add

impeller shims (Ref. No. 13) between shaft sleeve and shaft collar until
impeller seats against shaft sleeve before striking bracket.

4. Measure normal distance from impeller vane front face to bracket inside