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Service Guide

Alemite, LLC

167 Roweland Drive, Johnson City, Tennessee 37601

www.alemite.com

Copyright 

© 

2010 by Alemite, LLC

This document contains confidential information that is the property of Alemite, LLC

670789

and is not to be copied, used, or disclosed to others without express written permission.

Revision (8-10)

SER 9968

9968
9968-A
9968-M

Figure 1

Stub Pump Model 9968 Series

Model 9968-M Shown

 Description

The major components of the stub pumps in the model 9968 

series consists of an air-operated motor and a pump tube. The air 
motor connects directly to a double-acting reciprocating pump 
tube. These low-pressure stub pumps (5:1 ratio) are designed to 
deliver all grades of oil. 

Pump Extensions

Extensions that screw directly into the pump’s fluid inlet allow 

the pump to accommodate different size drums and tanks. 
Extensions are accessory items and are not included with the 
pump. See 

Table 2

.

Models 9968 Series Comparison

Model 9968 and 9968-M * include a 2 " NPTF (m) bung 

adapter that allows installation directly onto original containers or 
bulk tanks. The bung adapter is not included with model 9968-A.

* Model 9968-M contains components (See 

Table 1

)

 

manufactured with BSPT(P) thread connections that include:

• air motor model 

339413-A1 

• a fluid outlet adapter in the pump tube’s body

Specifications

Air Motor

Pump Tube

Air Motor 

Model

Piston Dia. x Stroke

Air Inlet

Maximum Air 

Pressure

in.

cm

psi

bar

339413

3 x 3-5/16

7.6 x 8.4

1/4 " NPTF (f)

150

10.3

339413-A1

1/4 " BSPT (f)

For details on the air motors, refer to Service Guide SER 

339413

Pump

Model

Fluid

Outlet in Body

Max.

Fluid 

Pressure

Delivery/Min.

(Approximate)*

Displacement

per Cycle

psi

bar

gals

liters

in 

3

cm 

3

9968, 9968-A 1/2 " NPTF (f)

750

52

7

26.5

7.2

118

9968-M

1/2 " NPTF (f) **

* For detailed information, refer to 

Figure 3

** Includes a 1/2 " BSPP (f) x 1/2 " NPTF (m) fluid outlet adapter

Table 1

Low-Pressure Stub Pump Specifications

Low-Pressure Stub Pump

Pump Model

Bung Adapter

9968

Included

9968-A

Not Included

9968-M *

Included

* With BSPT(P) Thread Connection Components (See 

Table

 

1

Содержание 9968

Страница 1: ...Series Comparison Model 9968 and 9968 M include a 2 NPTF m bung adapter that allows installation directly onto original containers or bulk tanks The bung adapter is not included with model 9968 A Model 9968 M contains components See Table 1 manufactured with BSPT P thread connections that include air motor model 339413 A1 a fluid outlet adapter in the pump tube s body Specifications Air Motor Pump...

Страница 2: ...SER 9968 Low Pressure Stub Pump Revision 8 10 2 Alemite LLC Figure 2 Low Pressure Stub Pump Model 9968 Series Exploded View ...

Страница 3: ...1003 10 O Ring 2 3 4 ID x 3 OD 1 172409 2 8 Body 1 323693 x 9 339412 Keeper 4 323707 18 10 Seal 1 5 16 ID x 1 9 16 OD 1 323713 28 11 338060 Bearing Brass 1 323778 27 12 Seal 1 5 16 ID x 1 11 16 OD 1 326750 B1 22 13 Spacer 1 335481 24 14 339606 Washer 1 56 1 335483 23 15 338106 Rod 1 338059 13 16 338120 Piston Nylon 1 338060 11 17 Ball 9 16 Dia 1 338089 8 18 323707 Seat Valve 1 338090 21 19 O Ring ...

Страница 4: ...in cubic feet liters per minute right Y axis and to fluid discharge pressure in psi bar left Y axis Extension Description Drum Tank 16 Gallon 55 Gallon 200 205 liter 250 Gallon Bench Top 275 Gallon Obround V Cut 338147 1 338147 2 338147 3 338147 7 Threaded at both ends 338246 1 338246 2 338246 3 338246 6 NOTE For use with low level cut off valve part number 321206 Cover Assembly Description Drum 5...

Страница 5: ...Low Pressure Stub Pump SER 9968 Alemite LLC 5 Revision 8 10 ...

Страница 6: ... 8 2 Remove Cover 1a Pry and swing the Cover sideways away from the Cylinder Refer to SER 339413 for details 3 Remove Screw 1b from the Top Cap 4 Remove Nuts 1d that secure the Body to Air Motor Assembly 1 5 Remove Carriage Bolts 1c from the Top Cap Remove Keepers 9 from the Body 6 Remove the Top Cap from the Cylinder CAUTION Remove the Cylinder with care Damage to Quad Ring 6 and or O Ring 7 can ...

Страница 7: ... 14 Remove Pin 28 from the Foot Valve 15 Remove Washer 23 Spring 24 and Ball 25 from the Foot Valve Clean and Inspect NOTE Use the appropriate repair kit for replacement parts Make sure all the compo nents are included in the kit before discard ing used parts 1 Clean all metal parts in cleaning solvent The solvent should be environmentally safe 2 Inspect all parts for wear and or damage Replace as...

Страница 8: ...f the Body 14 Install Back Up Ring 20 concave upward onto Tube 21 15 Install O Ring 19 on top of the Back Up Ring 16 Screw and seat the Tube assembly into the Body Make sure both Rings are not visible Step for Model 9968 and 9968 M Only 17 Slide Bung Adapter 22 onto the Tube 18 Screw the Foot Valve assembly into the Tube Tighten the Foot Valve assembly securely to the Tube and the Tube to the Body...

Страница 9: ...ump assembly should cycle If the pump assembly does not cycle refer to the Troubleshooting Chart for details With air pressure at zero 2 Connect a product hose to the pump s fluid outlet Direct the hose into an appropriate collection container 3 Place the pump in oil 4 Slowly supply air pressure to the pump s motor 5 Allow the pump to cycle slowly until the oil is free of air If the pump assembly ...

Страница 10: ...rrect leak 5 Apply thread sealant to male pipe threads and tighten extension External Leaks Product leakage visible at weep hole in Body 8 1 Damaged Seal 12 2 Damaged Rod 15 1 Replace Seal 12 2 Inspect Rod 15 and replace as necessary Product leakage visible at bottom of Body 8 1 Tube 21 not sufficiently tight 2 Damaged O Ring 19 1 Tighten Tube 21 into Body 8 2 Separate Tube 21 from Body 8 and repl...

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