Product Manual

2S5X-250-00
2
03/2012
Specifications Information and Repair Parts Manual IPT 2P5X, 2S5X, 3S5X
x
IPT Series 2P5X, 2S5X & 3S5X Pumps
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 bracket’s cast bore with polished seal ring up.
Install by pressing on seal’s metal housing 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. 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.
3. 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
1. 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 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.
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 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
clearance between impeller and bracket is achieved.
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 clearance is achieved. Remove
impeller from PTO shaft.
2. Insert key (Ref. No. 14) into impeller keyway.
3. Install shaft seal rotating half (Ref. No. 8) into bore in
impeller 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.
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
1. 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. 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.
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 face with a micrometer or similar accurate
measuring instrument.
5. Lay volute (Ref. No. 18) on its nose exposing bracket
mounting surface. Measure normal distance from volute
mounting surface to impeller wear face.
6. Adjust amount of impeller shims between shaft sleeve and
shaft collar until assembled clearance between impeller face
and volute face is 0.01” to 0.03”.
Install Semi-Open Impeller -3/4”-16 threaded “S” pump kits
1. Install impeller spacer (Ref. No. 12) into impeller (Ref. No.
11) threaded bore. Make certain spacer slides all the way to
the bottom of the bore.
2. Install shaft seal rotating half (Ref. No. 8) into bore in
impeller 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.
3. Thread impeller onto PTO shaft until impeller spacer bottoms
against end of shaft. If impeller rear shroud contacts bracket
first remove impeller. Add impeller shims (Ref. No. 12) until
shaft seats against shims before striking bracket.
4. Measure normal distance from impeller vane front face to
bracket inside face with a micrometer or similar accurate
measuring instrument.
5. Lay volute (Ref. No. 18) on its nose exposing bracket
mounting surface. Measure normal distance from volute
mounting surface to impeller wear face.
6. Adjust amount of impeller shims until assembled clearance
between impeller face and volute face is 0.01” to 0.03”.
Install Semi-Open Impeller -3/4” keyed “S” pump kits
1. Temporarily install impeller (Ref. No. 11) on PTO shaft. End
of PTO shaft must contact bottom of shaft bore in impeller
hub. If impeller rear shroud contacts bracket before end of
PTO shaft contacts bottom of shaft bore in impeller, install
shims (Ref. No. 12) in bore until impeller clears bracket.
2. Measure normal distance from impeller vane front face to
bracket inside face with a micrometer or similar accurate
measuring instrument.
3. Lay volute (Ref. No. 18) on its nose exposing bracket
mounting surface. Measure normal distance from volute
mounting surface to impeller wear face.
4. Adjust amount of impeller shims until assembled clearance
between impeller face and volute face is 0.01” to 0.03”.