HOMA Collet Impeller Assembly User Manual

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736-8890 With Any Additional Questions

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Asse

mbly

Collet Impeller

You will need:

-A torque wrench with a 40 foot pound capacity

-Allen key socket and extension

-Liquid soap to lubricate o rings

Instructions

• Place o-ring around outside diameter and inside

diameter of distance ring, lubricate with liquid
soap, and place in impeller. (A) DO NOT USE
GREASE TO LUBRICATE.

• Lightly tap ring in with a plastic hammer.

• Loosen all screws in impeller locking

mechanism, and pull the opposite sides to
extend the mechanism. (B)

• Degrease inside and outside surface of locking

mechanism, shaft, and impeller borehole. Any
residual on these surfaces may cause collet to
slip.

A

B

• Place locking mechanism into impeller borehole.

(C)

• Lubricate inner o-ring in distance ring with liquid

soap.

• Slide impeller onto shaft until locking mechanism

reaches shoulder of the shaft.

• Be certain that the locking mechanism stays in

88FN2005

the proper position while installing on shaft.

C.

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Publication

Please Contact

Technical Support At 203

-

736-8890 With Any Additional Questions

Page

80

2

90

•

E.

Part
number
4492007
4492010
4492016
4492020
4492025
4492027
4492033

Inside
Diameter (inch)

1.575

1.75

2.2

2.36

2.56

2.75

Outside
Diameter (inch)

2.5

2.875

2.875

3.35

3.35

3.75

4.33

Torque (inch
pounds)

100

120
140
160
400

Snug all screws in locking mechanism.

• Tighten screws in the order shown in (D)

• Tighten the screws to the required torque,

given in table (E).

• Retighten screws in the same pattern to

the same torque to ensure the collet will
not slip. This will take 5-8 repetitions. THE
COLLET WILL NOT HOLD IF SCREWS
ARE ONLY TIGHTENED ONCE.

• Put o-ring on cover disc and lubricate it.

• Install cover disc over locking mechanism

D

on impeller borehole.

• Make certain to place copper washer and

loctite on bolt before installation. (F)

• Tighten bolt.

F.

88FN2005

Please Be Prepared To Provide Pump Serial Number During Call

2 of 2