Alemite 9968 User manual

Service guide
Date of issue July 2023
Form number 670789
Version 3
Models , -A, -M
Low-pressure stub pump

Contents
Declaration of Conformity *. . . . . . . . . 3
U.K. Declaration of Conformity *. . . . . 4
Safety *. . . . . . . . . . . . . . . . . . . . . . . . . . 5
Explanation of signal words
for safety . . . . . . . . . . . . . . . . . . . . . . . . . 
Description. . . . . . . . . . . . . . . . . . . . . . . 6
Pump extensions . . . . . . . . . . . . . . . . . . 
Models  series comparison . . . . . . 
Air motor specifications . . . . . . . . . . . . . 
Pump tube specifications . . . . . . . . . . . . 
Stub pump model  series. . . . . . . . 
Low-pressure stub pump model
 series accessories . . . . . . . . . . . . . 
Performance curves . . . . . . . . . . . . . . . 7
Delivery versus discharge pressure
and air consumption. . . . . . . . . . . . . . . . 
Service hints . . . . . . . . . . . . . . . . . . . . . . 
Overhaul. . . . . . . . . . . . . . . . . . . . . . . . . 9
Disassembly. . . . . . . . . . . . . . . . . . . . . . 9
Separate air motor from pump tube . . . 
Pump tube assembly . . . . . . . . . . . . . . . 
Clean and inspect . . . . . . . . . . . . . . . . . 9
Assembly . . . . . . . . . . . . . . . . . . . . . . . . 10
Lubricated components . . . . . . . . . . . . . 
Bench test and operation. . . . . . . . . . . 11
Air line components . . . . . . . . . . . . . . . . 
Installation . . . . . . . . . . . . . . . . . . . . . . . 
Pump tube assembly -B -
section view. . . . . . . . . . . . . . . . . . . . . . . 
Troubleshooting chart . . . . . . . . . . . . . . 
*Indicates change


This Declaration of Conformity is issued
under sole responsibility of the
manufacturerAlemite, L.L.C. hereby
declares that the machinery stated below:
Product:
Model number(s):
and conforms to the following harmonized
standards:
Declaration of Conformity * DOCUMENT NUMBER
SER670789
Manufacturer name/address:
Alemite, L.L.C.
 Roweland Drive
Johnson City, TN  U.S.A.
TEL: + () - FAX: + () -
Authorized to compile the technical file:
SKF Lubrication Systems Germany GmbH
Heinrich-Hertz-Straße -
 Walldorf, Germany
EMAIL: [e-mail] WEBSITE: www.skf.com
I, the undersigned of Alemite, L.L.C., do hereby declare that the equipment specified above, in its intended use, conforms to the requirements
of the above directives and harmonized standards at the time of placing the above product on the market.
___________________________________
Robert Collins
Technical Compliance Manager
St. Louis, MO, U.S.A.
The manufacturer maintains a technical file
summary sheet containing test reports and
product documentation:
Technical file summary sheet number:
Designation:
consisting of the following incomplete
machines:
Name:
Model number(s):
Name:
Model number(s):
Year of CE:
in its intended use, is in conformity with the
relevant union harmonization legislation:
RA
Machinery Directive //EC
EN ISO : 
Hydraulic fluid power - general rules and
safety requirements for systems and their
components
EN ISO : 
Safety of machinery. General principles
for design. Risk assessment and risk
reduction.
EN ISO : +A:
Pumps and pump units for liquids -
common safety requirements
EN : +A: 
Liquid pumps - safety requirements -
procedure for hydrostatic testing
-A, -B

, -A, -M
Low-pressure stub pump

Pump tube
Air motor
RAM pump
//
*Indicates change


This U.K. Declaration of Conformity is issued
under sole responsibility of the
manufacturer Alemite, L.L.C. hereby
declares that the machinery stated below:
Product
Model number(s):
and conforms to the following harmonized
standards:
U.K. Declaration of Conformity * DOCUMENT NUMBER
SER670789
Manufacturer name/address:
Alemite, L.L.C.
 Roweland Drive
Johnson City, TN  U.S.A.
TEL: + () - FAX: + () -
Authorized to compile the technical file:
SKF (U.K.) Limited
 Canada Close
Banbury, Oxfordshire, OX RT, GBR
EMAIL: [e-mail] WEBSITE: www.skf.com
I, the undersigned of Alemite, L.L.C., hereby declare that the equipment specified above, in its intended use, conforms with all requirements of
the U.K. legislation Supply of Machinery (Safety) Regulations  No.  by the time of placing it on the market.
___________________________________
Robert Collins
Technical Compliance Manager
St. Louis, MO, U.S.A.
The manufacturer maintains a technical file
summary sheet containing test reports and
product documentation:
Technical file summary sheet number:
Designation:
consiting of the following incomplete
machines:
Name:
Model number(s):
Name:
Model number(s):
Year of CE:
in its intended use, is in conformity with the
relevant union harmonization legislation:
RA
Supply of Machinery (Safety) Regulations
 (S.I. :)
EN ISO : 
Hydraulic fluid power - general rules and
safety requirements for systems and their
components
EN ISO : 
Safety of machinery. General principles
for design. Risk assessment and risk
reduction.
EN ISO : +A:
Pumps and pump units for liquids -
common safety requirements
EN : 
Liquid pumps - safety requirements -
procedure for hydrostatic testing
-A, -B

, -A, -M
Low-pressure stub pump

Pump tube
Air motor
RAM pump
//
*Indicates change


Safety *
The assembly must be installed, maintained
and repaired exclusively by persons familiar
with the instructions.
Always disconnect power source
(electricity, air or hydraulic) from the
equipment when it is not being used.
This equipment generates high pressure.
Extreme caution should be used when
operating this equipment as material leaks
from loose or ruptured components can
inject fluid through the skin and into the
body. If any fluid appears to penetrate the
skin, seek attention from a doctor
immediately. Do not treat injury as a simple
cut. Tell attending doctor exactly what type of
fluid was injected.
Any other use not in accordance with
instructions will result in loss of claim for
warranty or liability.
• Do not misuse, over-pressurize, modify
parts, use incompatible chemicals, fluids,
or use worn and/or damaged parts.
• Do not exceed the stated maximum
working pressure of the equipment or of
the lowest rated component in your
system.
• Always read and follow the manufacturer’s
recommendations regarding fluid
compatibility, and the use of protective
clothing and equipment.
• Failure to comply may result in personal
injury and/or damage to equipment.
CAUTION
Do not operate equipment without
wearing personal protective gear.
Wear eye protection. Protective
equipment such as dust mask, non-skid
safety shoes, hard hat, or hearing pro-
tection used for appropriate conditions
will reduce personal injuries.
Failure to comply may result in light
personal injury.
WARNING
Do not allow any body part
to be trapped by equipment.
Body parts can be crushed
by subassemblies during
operation.
Failure to comply may result in death
or serious physical injury.
WARNING
Do not allow fluid to leak
onto floor when operating
equipment. If spill occurs,
clean any fluid on floor before continuing
operation.
Failure to comply may result in death
or serious personal injury.
WARNING
Do not use this equipment to supply,
transport, or store hazardous
substances and mixtures in accordance
with annex I part - of the CLP
regulation (EG /) or HCS 
CFR . marked with GHS,
GHS and GHS hazard pictograms
shown:
Explanation of signal
words for safety
NOTE
Emphasizes useful hints and
recommendations as well as
information to prevent property damage
and ensure efficient trouble-free
operation.
CAUTION
Indicates a dangerous situation that can
lead to light personal injury if
precautionary measures are ignored.
WARNING
Indicates a dangerous situation that
could lead to death or serious injury if
precautionary measures are ignored.
DANGER
Indicates a dangerous situation that will
lead to death or serious injury if
precautionary measures are ignored.
WARNING
Do not operate equipment
without reading and fully
understanding safety
warnings and instructions.
Failure to follow warnings and
instructions may result in serious injury.
*Indicates change


1)
17 in
(43,2 cm)
5 / in
(13,3 cm)
14
1 1/2 in NPTF (i) 3)
∅ 2 1/2 in
(5,4 cm)
4)
2)
5)
Description
The major components of the stub pumps in
the model  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 (: 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 Accessories table, page 7.
Models 9968 series
comparison
Model  and -M ) include a
 in NPTF (e) bung adapter that allows
installation directly onto original containers
or bulk tanks. The bung adapter is not
included with model -A.
NOTE
Model -M contains components
manufactured with BSPT(P) thread
connections that include air motor
model -A and fluid outlet
adapter in the pump tube body
Air motor specifications
Model
Piston diameter
x stroke
Air
inlet
Maximum air
pressure
  x  5/16 in
(7.6 x 8.4 cm)
1/4in NPTF (i)  psi (10,3 bar)
-A  x  5/16 in
(7.6 x 8.4 cm)
1/4in BSPT (i)  psi (10,3 bar)
Pump tube specifications
Pump
model
Fluid outlet
in body
Maximum fluid
pressure
Delivery/min.
(approximately) )
Displacement/
cycle
, -A 1/2in NPTF (i)  psi (52 bar)  gals (26,5 l) . in(118 cm3)
-M 1/2in NPTF (i) )  psi (52 bar)  gals (26,5 l) . in(118 cm3)
Pump model Bung adapter
 Included
-A Not included
-M ) Included
Fig. 1
Stub pump model 9968 series
Model -M shown
) Air exhaust
) Air inlet
) Fluid inlet
) Bung adapter
) Fluid outlet
) For details on the air motors, refer to manual 670782.) With BSPT(P) thread connection components (see Specifications tables).
) For detailed information (→Diagram 1, page 7).
) Includes a 1/2in BSPP (i) x 1/2in NPTF (e) fluid outlet adapter


Low-pressure stub pump model 9968 series accessories
Drum Ta n k
Extension description  gallon  gallon / liter  gallon bench top  gallon obround
V-cut - - - - -
Threaded at both ends ) - - - - -
Low-pressure stub pump model 9968 series accessories (continued)
Drum
Cover assembly description  gallon  gallon  gallon
Bolt-on -  ) -
With  in (50,8 cm) bung adapter fitting -  ) -
Performance curves
A pump’s ability to deliver fluid is based on
the pressure (psi (bar)) and quantity (cfm (lpm))
of air supplied to the motor and the amount
of fluid discharge (back) pressure to be over-
come within the system.
This chart contains curves based on three
different air pressures. The curves relate
delivery in gallons (liters) per minute (X axis)
to air consumption in cubic feet (liters) per
minute (rightY axis) and to fluid discharge
pressure in psi/bar (left Y axis).
Diagram 1
Delivery versus discharge pressure and air consumption
Fluid discharge pressure
bar psi
55
50
45
40
35
30
25
20
15
10
5
800
700
600
500
400
300
200
100
00
SAE No. 10 W 40 at 77 °F (25 °C)
150 psi (10,3 bar)
150 psi (10,3 bar)
100 psi (6,9 bar)
100 psi (6,9 bar)
50 psi (3,4 bar)
50 psi (3,4 bar)
ft3/min liters/min
40
35
30
25
20
15
10
5
0
1234567
1 100
1 000
900
800
700
600
500
400
300
200
100
Gallons/minute
Legend
Air pressure
Air consumption
Material discharge pressure
Liters/minute
5 10 15 20 25
) For use with low level cut-off valve part number 
) With sealing gasket


1
2
3
4
Fig. 2
Service hints
Refer to the Overhaul procedure, page 9 for details
Item Description
Inspect the chamber of the rod for roughness.
Damage to seals may occur
 Ensure rings are not exposed after tube installation.
Product leakage can occur.
 Apply threadlocker to the threads of the valve seat.
Valve seat may loosen.
 Do not overtighen the valve seat into the rod.
Distortion of the nylon piston can occur.


Overhaul
NOTE
Refer to fig. 3, page 12 and
IPB 1, page 14 for component
identification on all overhaul procedures.
Prior to performing any maintenance
procedure, the following safety precautions
must be observed. Personal injury may
occur.
WARNING
Do not use halogenated hydrocarbon
solvents such as methylene chloride or
,,-trichloroethane in this pump.
An explosion can result when aluminum
and/or zinc-plated parts in pump come
in contact with halogenated hydrocar-
bon solvents.
Release all pressure within system
prior to performing any overhaul
procedure.
• Disconnect air supply line from pump
motor.
• Into an appropriate container, oper-
ate control valve to discharge
remaining pressure within system.
Never point a control valve at any
portion of your body or another person.
Accidental discharge of pressure and/or
fluid can result in injury.
Read each step of instructions care-
fully. Make sure a proper understanding
is achieved before proceeding.
Disassembly
Separate air motor from
pump tube
1
Clamp pump assembly in a soft-jaw vise at
bung adapter (22) or body (8).
2 Remove cover (1a).
2.1 Pry and swing cover sideways away
from cylinder (→ SER 670782 for
details).
3 Remove screw (1b) from top cap.
4 Remove nuts (1d) that secure body to air
motor assembly (1).
5 Remove carriage bolts (1c) from top cap.
5.1 Remove keepers (9) from body.
6 Remove the cap from the cylinder.
CAUTION
Remove cylinder with care.
Damage to quad-ring (6) and/or
o-ring (7) can occur.
7 With a side-to-side motion, pull cylinder
from body and air piston (4).
8 Remove o-ring (7) from body.
9 Remove bottom cap from body.
Pump tube assembly
Tube assembly
1 Unscrew tube (21) from body.
Step for model  and -m only:
2 Remove bung adapter from tube as
required.
3 Remove o-ring (19) and back-up
ring (20) from tube.
Air piston assembly
4 Remove screw (2) that secures air
piston (4) to rod (15).
4.1 Remove air piston from rod.
5 Remove washer (3) quad-ring (6), and
o-ring (5) from air piston.
Rod assembly
6 Pull rod assembly from bottom of body.
7 Unscrew valve seat (18) from rod.
7.1 Remove ball (17) and nylon piston (16).
Body assembly
8 Remove o-ring (7) from body.
9
Remove washer (14), spacer (13) and seal
(12) from body.
10 Remove bearing (11) and seal (10) from
body.
Step for model -M only:
11 Unscrew adapter (29) from body only when
necessary.
11.1 Adapter is secured with threadlocker.
Foot valve assembly
12 Unscrew foot valve (27) from tube (21).
13 Remove o-ring (26) from foot valve.
14 Remove pin (28) from foot valve.
15
Remove washer (23), spring (24), and ball
(25) from foot valve.
Clean and inspect
NOTE
Use appropriate repair kit for replace-
ment parts. Make sure all components
are included in kit before discarding
used parts.
1 Clean all metal parts in cleaning solvent.
Solvent should be environmentally safe.
2 Inspect all parts for wear and/or damage.
2.1 Replace as necessary.
3 Inspect air piston (4) for fatigue cracks.
3.1 Replace as necessary.
4 Inspect nylon piston (16) and rod (15) closely.
Use a magnifying glass to detect any
score marks on the rod.
4.1 Replace as necessary.
5 Closely inspect mating surfaces of all check
valve components for any imperfections.
Ensure a smooth and clean contact is
obtained when assembled.
Example: place ball (25) into
foot valve (27). Fill foot valve with solvent.
Make sure no leakage occurs.


Assembly
NOTE
Prior to assembly, certain components
require lubrication. Refer to
Lubricated components table for
details.
NOTE
Refer to fig. 3, page 12 for a section
view of pump tube assembly.
Foot valve
1 Install o-ring (26) onto foot valve (27).
2
Install ball (25), spring (24) (small diameter
first), and washer (23) into foot valve.
3 Install pin (28) into foot valve.
3.1 Make sure pin retains washer
properly and is flush the foot valve.
Body
4 Install o-ring (7) onto upper groove of
body (8).
5
Install and seat seal (10) (heel end first) into
bottom of the body.
6 Install and seat bearing (11) (small diameter
first) into body.
7 Install and seat seal (12) (heel end first) into
body.
8 Install spacer (13) (small diameter first) and
washer (14) into body.
Step for model -M only
9 Screw adapter (29) (with threadlocker) into
body as required.
Tube and rod
10
Install and seat nylon piston (16) (openings
upward) onto bottom of rod (15).
11 Install ball (17) into rod.
NOTE
Do not tighten the valve seat more than
/turn once it contacts nylon piston.
Distortion of nylon piston can occur
which causes excessive drag on the
tube.
12 Screw valve seat (18) (with threadlocker)
into rod (→fig. IPB 1, page 14).
12.1 Follow thread sealant manufacturer’s
recommendations.
CAUTION
Install rod into body with a twisting
motion. Use care not to damage seals.
13 Install rod assembly into bottom of body.
13.1
Position the nylon piston flush with the
bottom of the body.
14 Install back-up ring (20) (concave upward)
onto tube (21).
15 Install o-ring (19) on top of back-up ring.
16 Screw and seat tube assembly into body.
16.1
Make sure both rings are not visible.
Step for model  and -M only
17 Slide bung adapter (22) onto tube.
18 Screw foot valve assembly into tube.
18.1 Tighten foot valve assembly
securely to tube and tube to body.
Lubricated components
Item no. Description Item no. Description
 O-ring, 3/8in ID x 1/2in OD (9,5 mm ID x 12,7 mm OD)  Seal,  5/16 in ID x  9/16 in OD (33,34 mm ID x 39,69 OD)
 Quad-ring,  5/8in ID x  in OD (66,68 mm ID x 76,2 mm OD)  Seal,  5/16 in ID x  11/16 in OD (33,34 mm ID x 42,86 mm OD)
 O-ring,  3/4in ID x  in OD (69,85 mm ID x 76,5 mm OD)  O-ring,  7/8in ID x  in OD (47,63 mm ID x 50,8 mm OD)
 O-ring,  11/16 in ID x  7/8in OD
(42,86 mm ID x 47,63 mm OD)
Specialty grease )*
Coat the bore of the air motor assembly
Air piston
19 Install quad-ring (6) onto air piston (4).
20
Install and seat o-ring (5) into bottom of air
piston.
21 Place air piston (observe this side up) on top
of rod.
22 Install screw (2) and washer (3) that secures
air piston to rod.
22.1 Tighten screw to  ft.lbf. (20.7 Nm).
Attach air motor to pump tube
23
Clamp pump assembly in a soft-jaw vise at
bung adapter (22) or body (8).
24 Install bottom cap onto body.
25 Install o-ring (7) onto upper groove of body.
CAUTION
Install cylinder with care. Damage to
quad-ring (6) and/or o-ring (7) can
occur.
Hint: Angle cylinder onto quad-ring.
26
Install cylinder over body’s o-ring and seat it
properly onto bottom cap.
27 Install top cap onto cylinder.
27.1 Use care passing o-ring.
28 Install keeper (9) into groove of body.
28.1 Make sure hole aligns with
carriage bolt (1c).
29
Install one carriage bolt through air motor
and through keeper.
30 Install flange nut (1d).
30.1 Do not tighten flange nut at this time.
31 Repeat procedural steps  -  for
additional keepers and carriage bolts.
) Includes a sachet of  grease


CAUTION
Do not overtighten flange nuts (1d).
Component damage can occur.
32
Torque each flange nut in an alternate pat-
tern from  to  in.lbf. (6.8 to 7.9 Nm).
33 Install screw (b) into top cap.
33.1 Tighten screw to
 in.lbf (5.6 Nm).
34 Snap cover (1a) onto cylinder.
Bench test and
operation
1
Slowly supply air pressure (recommended
minimum of  psi (1.7 bar))
to the pump’s motor.
1.1 Pump assembly should cycle.
If pump assembly does not cycle, refer to
Troubleshooting chart, page 13 or details.
With air pressure at zero:
2 Connect a product hose to pump’s fluid
outlet.
2.1
Direct hose into an appropriate collection
container.
3 Place pump in oil.
4 Slowly supply air pressure to pump’s motor.
5 Allow pump to cycle slowly until is free of air.
If pump assembly does not prime, refer to
Troubleshooting chart, page 13 for details.
With air pressure at zero:
WARNING
Do not operate air motor if leakage is
present. Disconnect motor should
leakage occur anywhere within system.
Failure to comply may result in
personal injury or damage to
equipment.
6 Attach a control valve to outlet hose of
pump.
6.1 Make sure nozzle on control valve is open.
7 Slowly supply air pressure to pump’s motor.
8 Allow pump to cycle slowly until oil is once
again free of air.
9 Set air pressure to normal operating
pressure.
10 Operate control valve into a container.
11 Shut off control valve.
11.1
Visually inspect pump for external leaks.
11.2 The pump should not cycle more than
once or twice in one hour.
If pump does not stall, refer to
Troubleshooting chart, page 13 for details.
12 Check motor for air leakage.
If motor leaks, refer to Air motor service
guide for details.
Installation
Additional items that should be incorporated
into the air piping systems are listed in
Air line components table below.
Air line components
Part number Description
- Moisture separator
-B Regulator and gauge


7
1)
A
8
9
10
11
13
14
15
16
17
18
19
20
21
23
24
25
26
27
28
A
B
B
8
Fig. 3
Pump tube assembly 338067-B1 - section view
Refer to Fig. IPB 1, page 14 and Parts list, page 15 for parts identification
) Lower seal weep hole


Troubleshooting chart
Pump indications Possible problems Solutions
Pump does not cycle. . Air motor not operating properly.
. Pump tube jammed and/or contains loose
components.
. Insufficient air pressure.
. Inspect air motor and rebuild or replace as
necessary.
. Rebuild pump tube.
. Increase air pressure.
Pump will not prime. . Excessive cycling speed.
. Pump leaking internally.
. Extension not sufficiently tight and/or
thread sealant missing or inadequate.
. Reduce air pressure.
. See internal leaks.
. Apply thread sealant ) to external pipe threads
and tighten extension.
Pump cycles rapidly. . Product source empty.
. Extension not sufficiently tight and/or thread
sealant missing or inadequate.
. Replenish product.
. Apply thread sealant ) to external pipe.
Threads and tighten extension.
Pump will not stall (cycles more than
once or twice/hour).
. Pump requires break-in period.
. Pump leaking internally.
. Pump leaking externally.
. Distribution system leaking.
. Extension not sufficiently tight and/or thread
sealant missing or inadequate.
. Operate pump against moderate fluid
pressure for up to one hour.
. See internal leaks.
. See external leaks.
. Correct leak.
. Apply thread sealant ) to external pipe threads
and tighten extension.
External leaks
Product leakage visible at weep hole in body (8). . Damaged seal (12).
. Damaged rod (15).
. Replace seal (12).
. Inspect rod (15) and replace as necessary.
Product leakage visible at bottom of body (8). . Tube (21) not sufficiently tight.
. Damaged o-ring (19).
. Tighten tube (21) into body (8).
. Separate tube (21) from body (8) and replace
o-ring (19).
Air leakage at weep hole in body (8). Damaged seal (10). Replace seal (10).
Product leakage visible between tube (21) and
foot valve (27).
. Foot valve (27) not sufficiently tight.
. Damaged o-ring (26).
. Tighten foot valve (27) into tube (21).
. Separate foot valve (27) from tube (21) and
replace o-ring (26).
Internal leaks
Continuous slow air leak. Worn or damaged o-ring (7). Replace o-ring (7).
Pump does not prime or cycles continuously,
or slowly (once or twice/hour).
. Foreign material between ball (17) and
valve seat (18).
. Foreign material between ball (25) and
foot valve (27).
. Worn or damaged ball (17).
. Worn or damaged valve seat (18).
. Worn or damaged ball (25).
. Worn or damaged foot valve (27).
. Worn or damaged nylon piston (16).
Locate and eliminate source of foreign material.
Disassemble pump tube, clean, inspect, and
replace worn or damaged components.
) Do not apply thread sealant to first two () threads. Contamination can occur.


1 2 3 4 5 6
7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26 27
28 29 30 31
1
1a
1b
1c
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1)
4)
6)
7)
5)
2)
2)
2)
29
1)
3)
3)
1d 1)
2)
2)
2)
2)
2)
2)
x2)
2)
2)
2)
1 2 3 4 5 6
7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26 27
28 29 30 31
1
1a
1b
1c
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1)
4)
6)
7)
5)
2)
2)
2)
29
1)
3)
3)
1d 1)
2)
2)
2)
2)
2)
2)
x2)
2)
2)
2)
Fig. IPB 1
Low-pressure stub pump model 9968 series - exploded view
)  repair kit, air motor keeper
)  repair kit (includes a sachet of  grease)
) Apply threadlocker here.
) Top cap
) Cylinder
) Bottom cap
) Weep hole


Parts list
Item Description Part number Quantity
Motor assembly, air ) 
a Cover (w/o decals)  ) 
b Screw, cap, 1/4in - x  1/2in ) 
c Bolt, carriage, 1/4in - x  1/2in ) ) 
d Nut, serrated flange, 1/4in - ) ) 
 Screw, 3/8in - x 3/4in 
 Washer, 3/8in (9,5 mm) 
Piston, air  
 O-ring, 3/8in ID x 1/2in OD (9,5 mm ID x 12,7 mm OD) X- ) ) 
 Quad-ring,  5/8in ID x  in OD (66,68 mm x 76,2 mm) X- ) ) 
 O-ring,  3/4in ID x  in OD (69,9 mm x 76,2 mm) X- ) ) 
Body 
 Keeper  ) 
 Seal,  5/16 in ID x  9/16 in OD (33,34 x 39,69 mm) ) 
 Bearing (brass)  
 Seal,  5/16 in ID x  11/16 in OD (33,34 mm x 42,87 mm) ) 
 Spacer 
 Washer, . in (39,62 mm)  
 Rod  
 Piston (nylon)  ) 
 Ball, 9/16 in (14,29 mm) diameter ) 
 Seat, valve  
 O-ring,  7/8in ID x  in OD (47,63 mm ID x 50,8 mm OD) ) 
 Ring, back-up ) 
 Tube  
 Adapter, bung,  in NPTF (i) (Model , -M) -B 
 Washer,  1/8in OD ) 
 Spring, tapered ) 
 Ball,  1/16 in (26,99 mm) diameter - 
 O-ring,  11/16 in ID x  7/8in OD (42,87 mm ID x 47,63 mm OD) ) 
 Valve, foot  
 Pin, 1/4in (6,35 mm) diameter x  25/32 in (45,24 mm) long  
 Adapter, 1/2in BSPP (i) x 1/2in NPTF (e) (Model -M) 
Kit components for early model  pump
x Gasket (aluminum)  ) 
Repair kits
Part number Description
 Kit, repair (includes a sachet of  grease)
 Kit, repair, air motor keeper
- Kit, seal (includes five () of (10))
- Kit, seal (includes five () of (12))
) See manual 670782.
) Included with motor assembly
) Pack of ten ().
) Part of air motor keeper repair kit .
) Part of repair kit .


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