Alemite 7730 User manual

Service Guide 7730
Alemite Corporation
PO Box 473515, Charlotte, North Carolina 28247-3515
www.alemite.com
Copyright © 2001 by Alemite Corporation
This document contains confidential information that is the property of Alemite Corporation
670700 and is not to be copied, used, or disclosed to others without express written permission. Revision (8-01)
SER 7730
Figure 1 High-Pressure Bulk Grease Pump
Model 7730
Description
The major components of pump model 7730 consist of an air-
operated motor and a pump tube. The air motor connects directly
to the double-acting reciprocating pump tube.
This high-pressure (75:1 ratio) grease pump is designed to
deliver a range of greases [up to NLGI # 3] directly from bulk
containers.
Mounting
In most cases these pumps connect horizontally to a bulk
container. See Figure 6. The pump includes the male portion of a
3-inch camlock connection for ease in installation.
Distribution System
The use of the proper equipment that comprise the entire
product distribution system is essential.
All components must have a pressure rating that allows safe
operation at the maximum anticipated pump pressure.
Specifications
Air Motor
Pump Tube
Piston Diameter x Stroke Air Inlet / Outlet Max. Air Pressure
Inches Centimeters psi Bars
4-1/4 x 4 10.8 x 10.2 3/4 " NPTF (f) 100 6.9
For information on the air motor, refer to Service Guide SER 323440-4
Material
Outlet
Max. Material
Pressure Max. Delivery/Minute (Approximate)* Displacement per Cycle
psi Bars Pounds Kilograms in 3cm3
1/2 " NPTF (f) 7500 517 12.5 5.7 1.36 22.3
* For detailed information, refer to Figure 3
Table 1 7730 Model Series Specifications
High-Pressure Bulk Grease Pump

SER 7730 High-Pressure Bulk Grease Pump
Revision (8-01) 2 Alemite Corporation
Figure 2-A High-Pressure Bulk Grease Pump Model 7730- Exploded View

High-Pressure Bulk Grease Pump SER 7730
Alemite Corporation 3 Revision (8-01)
Repair Kits
Part No. Kit Symbol Description Notes
393669 Kit, Major Repair Includes items on Figure 2-A and 2-B
393623 Kit, Minor Repair (for Pump Tube Assembly) Includes items on Figure 2-A and 2-B
393040-1 Kit, Minor Repair (for Body and Seal Group)
393530-5 Kit, Seal [includes five (5) of item number 16]
393530-6 Kit, Seal [includes five (5) of item number 18]
Item
No. Part No. Description Qty Notes Numeric Order Part # (Item #)
110522 Plug, Square Head Pipe, 1/4 " NPTF (m) 110522 (1)
2327706 Adapter, 1/2 " NPTF (m) 111828 (6)
3Motor Assembly, Air 1 See SER 323440-4 77807 (8)
4328037 Connector, 3/4 " NPTF (m) 1171009-2 (11)
5328031 Coupler Air, 1/2 " NPTF (f) 1171009-13 (14)
6Screw, 1/2 " -20 x 2 " 4171009-33 (9)
7Lockwasher, 1/2 " 4171009-35 (10)
8Nut, 1/2 " -20 4172190-5 (16)
9171009-33 O-Ring, 1-13/16" ID x 2 " OD 1172190-6 (18)
10 171009-35 O-Ring, 1-15/16" ID x 2-1/8 " OD 1172207-4 (7)
11 O-Ring, 1/2" ID x 5/8 " OD 3323440-C1 (3)
12 338881 Body 1323693 (21)
13 323787 Screw, Cap, Socket Head, 1/2 " - 13 3323787 (13)
14 O-Ring, 1-3/16" ID x 1-5/16 " OD 1327706 (2)
15 Spacer 1328031 (5)
16 Seal, 13/16 " ID x 1-1/16 " OD 1328037 (4)
17 Ring, Lantern (Brass) 1332465 (22)
18 Seal, 13/16 " ID x 1-9/16 " OD 1332466 (20)
19 337361 Washer, 1.55 " OD 1333256 (23)
20 332466 Spacer 1337361 (19)
21 323693 Gasket (Aluminum) 2337362 (17)
22 332465 Washer, 1.93 " OD 1337363 (15)
23 333256 Nut, Jam, 2.00 - 16 UN - 2B 1338881 (12)
Legend:
Part numbers left blank (or in italics) are not available separately
designates a repair kit item

SER 7730 High-Pressure Bulk Grease Pump
Revision (8-01) 4 Alemite Corporation
Figure 2-B High-Pressure Bulk Grease Pump Model 7730 Series - Exploded View

High-Pressure Bulk Grease Pump SER 7730
Alemite Corporation 5 Revision (8-01)
Item
No. Part No. Description Qty Notes Numeric Order Part # (Item #)
24 171000-107 O-Ring, 4 " ID x 4-3/8 " OD 118850 (50)
25 338838 Adapter, Camlock 146584 (40)
26 323439 Coupling 1131398-1 (48)
27 324648 Clip, Spring 2131402 (29)
28 333257-6 Tube, Upper Pump, 9 " Long 1171000-107 (24)
29 131402 Gasket, 1.68 " OD (Aluminum) 4171032-8 (42)
30 337461 Barrel Assembly 1 Includes Item 31 172190-13 (46)
31 337465 Ring, Wear (Glass-Reinforced Nylon) 1172190-14 (32)
32 Seal, 0.925 " ID x 1.300 " OD 1172270-9 (39)
33 337464 Ring, Back-Up 1319763 (37)
34 337463 Bearing (Brass) 1323439 (26)
35 337462 Spacer 1323734 (49)
36 337466 Piston 1323747-1 (44)
37 319763 Retainer 1324648 (27)
38 327704 Spring, 1-7/8 " Long Straight 1326852 (45)
39 Ball, 3/8 " Dia. 1326855 (41)
40 46584 Gasket, 0.64 " OD (Aluminum) 1327704 (38)
41 326855 Adapter and Insert Assembly 1333085 (51)
42 171032-8 Pin, Roll, 3/32 Dia. x 11/16 " Long 1333257-6 (28)
43 333343 Rod, Primer, 21/32 " Dia. x 7-3/16 " 1333343 (43)
44 323747-1 Adapter 1337461 (30)
45 326852 Washer, Guide 1337462 (35)
46 Seal, 0.650 " ID x 0.990 " OD 1337463 (34)
47 Body, Valve 1337464 (33)
48 131398-1 Seat, Valve 1337465 (31)
49 323734 Plate 1337466 (36)
50 18850 Nut, Elastic Stop, 1/4 " - 28 1338422 (47)
51 333085 Body, Primer 1338838 (25)
Legend:
Part numbers left blank (or in italics ) are not available separately
designates a repair kit item
Repair Kits
Part No. Kit Symbol Description Notes
393669 Kit, Major Repair Includes items on Figure 2-A and 2-B
393623 Kit, Minor Repair (for Pump Tube Assembly) Includes items on Figure 2-A and 2-B
394078 Kit, Minor Repair (for Lower Pump Tube Packing)
393530-13 Kit, Seal [includes five (5) of item number 46]
393530-14 Kit, Seal [includes five (5) of item number 32]

SER 7730 High-Pressure Bulk Grease Pump
Revision (8-01) 6 Alemite Corporation
Accessory
Preventive Maintenance
Refer to section entitled Overhaul for the procedures necessary to perform maintenance.
Performance Curves
A pump’s ability to deliver material is based on the pressure (psi/Bars) and quantity
(cfm/lpm) of air supplied to the motor and the amount of material discharge [back] pressure to
be overcome within the system.
This chart contains curves based on three different air pressures. The curves relate delivery
in pounds (kilograms) per minute (X axis) to air consumption in cubic feet (liters) per minute
(right Y axis) and to material discharge pressure in psi/Bars (left Y axis).
Part Number Description
324170 Muffler
Table 2 Model 7730 Accessory
Daily Weekly Monthly Yearly
Wipe Exterior with Clean Cloth Inspect for Air and/or Material Leakage
Table 3 7730 Model Series Preventive Maintenance Schedule
Figure 3 Delivery versus Discharge Pressure and Air Consumption

High-Pressure Bulk Grease Pump SER 7730
Alemite Corporation 7 Revision (8-01)

SER 7730 High-Pressure Bulk Grease Pump
Revision (8-01) 8 Alemite Corporation
Overhaul
NOTE: Refer to Figure 2-A and 2-B 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 sol-
vents such as methylene chloride or 1,1,1-trichlor-
ethane in this pump. An explosion can result
within an enclosed device capable of containing
pressure when aluminum and/or zinc-plated parts
in the pump come in contact with halogenated
hydrocarbon solvents.
Release all pressure within the system prior to
performing any overhaul procedure.
• Disconnect the air supply line from the pump
motor.
• Into an appropriate container, operate the
control valve to discharge remaining pressure
within the system.
Never point a control valve at any portion of your
body or another person. Accidental discharge of
pressure and/or material can result in injury.
Read each step of the instructions carefully. Make
sure a proper understanding is achieved before
proceeding.
Disassembly
Separate Pump Tube from Air Motor
1. Clamp the motor assembly in a vise.
2. Remove Nuts (8), Lockwashers (7), and Screws (6)
that secure Camlock Adapter (25) to Air Motor
Assembly (3).
• Remove the Camlock Adapter from the Air Motor
Assembly.
3. Remove O-Ring (24) from the Camlock Adapter.
4. Loosen Jam Nut (23) that secures the Pump Tube
assembly to the Air Motor Assembly.
CAUTION
Support the Pump Tube assembly during removal.
Damage to components can occur.
5. Unscrew Pump Tube (28) [with attached components]
from the Air Motor.
6. Pull on the Pump Tube to expose Coupling (26).
7. Remove upper Spring Clip (27) that secures the
Coupling to the air motor piston rod.
8. Unscrew the Coupling from the air motor piston rod.
• Rotate the entire Pump Tube assembly.
Pump Tube Upper Packing
9. Unscrew Adapter (2) from the air motor housing.
10. Unscrew Cap Screws (13) that secure Body (12) to the
Air Motor.
• Do not remove the Cap Screws from the Body.
11. Remove the Body from the Air Motor.
• Use the Cap Screws as levers.
12. Remove O-Rings (11), O-Ring (9), and O-Ring (10)
from the Body.
13. Position the Body on the bench with the larger
diameter facing upward.
14. Remove aluminum Gasket (21), Washer (22), and
additional Gasket (21) from the Body.
15. Remove Spacer (20), Washer (19), and Seal (18).
16. Remove Lantern Ring (17) with Seal (16), and
Spacer (15).
• Remove the Seal from the Lantern Ring.
17. Remove O-Ring (14) from the Body.
Pump Tube
18. Clamp the pump tube assembly at Adapter (44)
securely in a soft-jaw vise.
19. Remove lower Spring Clip (27) that secures
Piston (36) to Coupling (26).
• Unscrew the Coupling from the Piston.
20. Unscrew and remove Upper Pump Tube (28) from the
Adapter.
21. Remove Barrel Assembly (30) from the Piston.
22. Remove both aluminum Gaskets (29).

High-Pressure Bulk Grease Pump SER 7730
Alemite Corporation 9 Revision (8-01)
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 necessary.
3. Inspect Piston (36) and Primer Rod (43) closely. Use a
magnifying glass to detect any score marks.
• Replace as necessary.
4. Closely inspect the mating surfaces of all check valve
components for any imperfections Ensure a smooth
and clean contact is obtained when assembled.
Assembly
NOTE: Prior to assembly, certain compo-
nents require lubrication in clean oil. Refer
to Table 4 for details.
Pump Tube Upper Packing
NOTE: Refer to Figure 4 for a section view
of the upper packing components.
1. Position Body (12) with the large diameter upward.
2. Install Spacer (15) into the Body.
• Make sure the Spacer centers and seats properly.
3. Install Seal (16) [lip end first] into Lantern Ring (17).
4. Install O-Ring (14) onto the top of the Lantern Ring.
5. Install the Lantern Ring assembly into the Body.
• Make sure the assembly centers and seats properly.
6. Install and seat Seal (18) [heel end first] into the Body.
23. Remove brass Bearing (34), Back-Up Ring (33), and
Seal (32) from the Barrel Assembly.
NOTE: Inspect the inside diameter of nylon
Wear Ring (31). Remove the Wear Ring if
rough or worn.
24. Remove Spacer (35) from the top of the Adapter.
25. Unscrew Primer Body (51) from Adapter (44).
26. Remove Primer Rod (43) [with attached components]
from the bottom of the Adapter.
27. Remove Stop Nut (50) from the Primer Rod.
• Place a small punch into the hole of the Primer Rod
to prevent its rotation.
28. Remove Plate (49), Gasket (29), Valve Seat (48), and
additional Gasket (29) from the Primer Rod assembly.
CAUTION
Support the Piston and Primer Rod assembly dur-
ing Roll Pin (42) removal. Damage to components
can occur.
29. Remove Roll Pin (42) that secures Adapter and Insert
assembly (41) to Primer Rod (43).
• Use a punch and a small hammer.
30. Unscrew the Primer Rod from the Adapter and Insert
assembly.
31. Remove Valve Body (47) and Guide Washer (45) from
the upper end of the Primer Rod assembly.
32. Remove Seal (46) from the Valve Body.
33. Unscrew the Adapter and Insert Assembly from
Piston (36).
34. Remove aluminum Gasket (40), Ball (39), Spring (38),
and Retainer (37) from the Piston.
Item No.
on Figure 2-A Description Item No. on Figure 2-B Description
9O-Ring, 1-13/16 " ID x 2 " OD 24 O-Ring, 4 " ID x 4-3/8 " OD
10 O-Ring, 1-15/16 " ID x 2-1/8 " OD 31 Ring, Wear (Glass-Reinforced Nylon)
11 O-Ring, 1/2" ID x 5/8 " OD 32 Seal, 0.925 " ID x 1.300 " OD
14 O-Ring, 1-3/16 " ID x 1-5/16 " OD 46 Seal, 0.650 " ID x 0.990 " OD
16 Seal, 13/16 " ID x 1-1/16 " OD
18 Seal, 13/16 " ID x 1-9/16 " OD
Table 4 Components Lubricated in Clean Oil

SER 7730 High-Pressure Bulk Grease Pump
Revision (8-01) 10 Alemite Corporation
CAUTION
Do not place Washer (19) inside Spacer (20). Dam-
age to components will occur.
7. Install Washer (19) and Spacer (20) [small end first]
into the Body.
8. Install O-Ring (9) and O-Ring (10) onto the top of the
Body.
9. Install O-Rings (11) into the Body.
• Apply a dab of grease to prevent movement.
10. Lubricate the air motor piston rod with grease.
11. Install the Body assembly (while holding the Spacer in
place) onto the piston rod.
• Use a small hammer or other suitable tool.
12. Rotate the Body to align the product outlet with the
hole in the air motor housing.
13. Install Cap Screws (13) that secure the Body to the air
motor.
• Tighten each Cap Screw securely.
NOTE: Refer to Figure 2-A for step 14.
14. Install Adapter (2) into the Body.
• Tighten securely.
15. Install aluminum Gasket (21), Washer (22), and
additional Gasket (21) into the Body.
• Make sure the components maintain their position.
Pump Tube
NOTE: Refer to Figure 5 for cross section
view of pump tube components.
16. Clamp the flats of Piston (36) into a soft-jaw vise.
• Make sure the Piston bore points upward.
17. Install Retainer (37) [flange end first] into the Piston.
• Make sure the Retainer centers and seats properly.
18. Install Spring (38) into the Piston.
19. Install Ball (39) into the Spring.
20. Install Gasket (40) onto Adapter and Insert
Assembly (41).
21. Screw the Adapter and Insert Assembly
(with Loctite 222) into the Piston. See Figure 2-B.
• Follow the thread sealant manufacturer’s
recommendations.
• Tighten securely.
Figure 4 Pump Tube Upper Packing - Section View
Refer to Figure 2-A Parts List
for Parts Identification
22. Install and seat Seal (46) [heel end first] into Valve
Body (47).
23. Lubricate Primer Rod (43) with grease.
24. Install the Valve Body assembly onto the Primer Rod.
• Use a small hammer or other suitable tool.
25. Install Guide Washer (45) onto the Primer Rod.
26. Screw the Primer Rod assembly into the Adapter and
Insert Assembly until the Roll Pin holes align.
CAUTION
Support the Primer Rod and the Adapter and Insert
Assembly during Roll Pin (42) installation. Damage
to components can occur.
27. Install Roll Pin (42) that secures the Primer Rod to the
Adapter and Insert Assembly.
• Use a small hammer.

High-Pressure Bulk Grease Pump SER 7730
Alemite Corporation 11 Revision (8-01)
28. Install Valve Seat (48), Plate (49), and Stop Nut (50)
onto the Primer Rod.
• Tighten the Stop Nut securely.
• Place a small punch into the hole of the Primer Rod
to prevent its rotation.
29. Position Adapter (44) horizontally into the vise.
Internally-Threaded End of Adapter
30. Install Gasket (29) into the internally-threaded end of
the Adapter.
31. Install the Primer Rod and Piston assembly
(Piston end first) into the Adapter.
• Center and seat all components properly. Pull on the
Piston as necessary. Use care to ensure the Gasket
does not move.
32. Install the additional Gasket (29) onto Valve Seat (48).
Externally-Threaded End of Adapter
33. Install Spacer (35) into the externally-threaded end of
the Adapter.
• Make sure the Spacer centers and seats properly.
34. Install Gasket (29) into the Adapter.
35. Position Barrel Assembly (30) with the large diameter
pointing upward.
36. Install Wear Ring (31) into the Barrel Assembly.
37. Install and seat Seal (32) [lip end first] into the Barrel
Assembly.
38. Install Back-Up Ring (33) and brass Bearing (34) into
the Barrel Assembly.
CAUTION
Use care installing the Barrel Assembly over the
threads of Piston (36). Damage to the Seal can
occur.
39. Install the Barrel Assembly (large diameter first) onto
Piston (36).
• Make sure the Barrel Assembly seats properly
against the Spacer.
40. Install Gasket (29) onto the Barrel Assembly.
41. Screw Coupling (26) onto the end of the Piston until
the Spring Clip holes align.
42. Install lower Spring Clip (27) that secures the
Coupling to the Piston.
Figure 5 Pump Tube Assembly - Section View
Refer to Figure 2-B
Parts List
for Parts Identification

SER 7730 High-Pressure Bulk Grease Pump
Revision (8-01) 12 Alemite Corporation
IMPORTANT: If a primer is used with Loc-
tite 222, the curing time is greatly reduced.
43. Screw Pump Tube (28) onto Adapter (44)
[with Loctite 222]. See Figure 2-B.
• Follow the thread sealant manufacturer’s
recommendations.
• Do not tighten at this time.
44. Screw Primer Body (51) [with Loctite 222] into the
opposite end of the Adapter. See Figure 2-B.
• Follow the thread sealant manufacturer’s
recommendations.
• Do not tighten at this time.
45. Screw Jam Nut (23) onto the Pump Tube.
46. Push on Plate (49) to expose Coupling (26) from the
Pump Tube as necessary.
Attach Pump Tube to Air Motor
47. Screw the Coupling onto the air motor piston rod until
the Spring Clip holes align.
• Rotate the entire pump tube assembly.
48. Install the Spring Clip.
49. Screw the pump tube assembly into Body (12).
50. Place a large wrench or other suitable tool into the slot
of Primer Body (51).
• Tighten all the components of the assembly securely.
Crush all gaskets.
51. Tighten the Jam Nut.
52. Install O-Ring (24) into Camlock Adapter (25).
IMPORTANT: Lightly coat the inside diame-
ter of the O-Ring with grease.
53. Install the Camlock Adapter onto Air Motor
Assembly (3).
• Use care when O-Ring passes Body (12).
54. Install Screws (6), Lockwashers (7), and Nuts (8) that
secure the Camlock Adapter to the Air Motor
Assembly.
• Tighten the Screws securely in an crisscross pattern.
Bench Test
1. Make sure air pressure at the regulator reads zero.
2. Install air Connector (4) to the inlet of the air motor.
3. Connect Air Coupler (5) to the Connector.
4. Slowly supply air pressure [not to exceed 20 psi
(1.4 Bars] to the pump’s motor.
• The pump assembly should cycle.
If the pump assembly does not cycle, refer to the
Troubleshooting Chart for details.
With air pressure at zero:
5. Connect a product hose to the pump’s material outlet.
• Direct the hose into an appropriate collection
container.
6. Place the pump in oil.
7. Slowly supply air pressure to the pump’s motor.
8. Allow the pump to cycle slowly until the system and
oil is free of air.
If the pump assembly does not prime, refer to the
Troubleshooting Chart for details.
WARNING
Should leakage occur anywhere within the
system, disconnect air to the motor. Personal
injury can occur.
With air pressure at zero:
9. Attach a control valve to the outlet hose of the pump.
10. Set the air pressure to 100 psi (6.9 Bar).
11. Operate the control valve into a container.
12. Allow the pump to cycle until the system and oil is
once again free of air.
13. Shut off the control valve.
• Visually inspect the pump for external leaks.
• The pump should not cycle. *
If the pump does not adequately stall, refer to the
Troubleshooting Chart for details.
14. Check the motor for air leakage.
If the motor leaks, refer to the Air Motor Service
Guide for details.
* A pump that does not completely stall with oil does
not necessarily mean that it will not stall with grease.

High-Pressure Bulk Grease Pump SER 7730
Alemite Corporation 13 Revision (8-01)
Installation
These pumps connect to a female camlock which is
part of a bulk container system. See Figure 6 for a typical
installation.
Additional items that should be incorporated into the
air piping systems are listed in Table 5.
* Although the air motor is lubricated at the factory,
the life of the motor can be extended with the use of a
lubricator.
Part Number Description
5612-2 Moisture Separator
SM7612-B Regulator and Gauge
5912-2 Lubricator *
Table 5 Air Line Components
Prove the Pump
Aerated product is due to external leakage; either at the
pump or at the connection fittings on the bulk container.
Isolation of the pump from the bulk container can help
“prove the pump”.
1. Place the pump in oil.
2. Follow procedures 9 through 13 within the section
entitled Bench Test.
If the pump does not leak externally * the fittings on
the bulk container may not be sealing properly.
* The pump may still contain an air leak at
O-Rings (11) and/or (24). Refer to the Troubleshooting
Chart for details.
Figure 6 Medium-Pressure Grease Pump Model 7730 (Shown with Accessories) - Typical Installation

SER 7730 High-Pressure Bulk Grease Pump
Revision (8-01) 14 Alemite Corporation
Troubleshooting Chart
Pump Indications Possible Problems Solution
Pump does not cycle 1. Insufficient air pressure
2. Air motor not operating properly
3. Pump tube jammed and/or contains loose
components
1. Increase air pressure
2. Inspect air motor and rebuild or replace as
necessary
3. Rebuild pump tube
Pump will not prime 1. Pump leaking internally
2. Improper seal between Camlock
Adapter (25) and camlock
3. Bulk container connection fittings leaking
4. Pump leaking externally
1. See Internal Leaks
2. Replace seal in camlock
3. Seal fittings and tighten securely
4. See External Leaks
Product is aerated * 1. Improper seal between Camlock
Adapter (25) and camlock
2. Bulk container connection fittings leaking
3. Pump leaking externally
1. Replace seal in camlock
2. Seal fittings and tighten securely
3. See External Leaks
Pump cycles rapidly Product source empty Replenish product
Pump will not stall (cycles more than once
or twice/hour) 1. Pump leaking internally 2. Pump leaking externally
3. Distribution system leaking
1. See Internal Leaks
2. See External Leaks
3. Correct leak
External Leaks
Product leakage from weep hole in
Body (12)
Visible at air motor base
1. Damaged Seal (18)
2. Damaged air motor piston rod.
1. Separate pump tube from air motor and replace
Seal (18)
2. Inspect piston rod and replace as necessary
Product leakage at bottom of Body (12)
Visible on Pump Tube (28)1. Pump tube not sufficiently tight 2. Damaged Gaskets (21)1. Tighten pump tube assembly 2. Separate pump tube from air motor and replace
Gaskets (21)
Air leakage from weep hole in
Body (12)
Felt at air motor base
Damaged Seal (16) Separate pump tube from air motor and replace
Seal (16)
Product leakage visible at weep hole in
Pump Tube (28) and/or Adapter (44)1. Pump tube not sufficiently tight 2. Damaged Gasket(s) (29)1. Tighten pump tube assembly 2. Disassemble pump tube and replace Gaskets (29)
Pump will not prime or product is aerated * 1. Damaged O-Ring (24)
2. Damaged O-Rings (11)
1. Remove Camlock Adapter (25) and replace
O-Ring (24)
2. Replace O-Rings (11)
Internal Leaks
Pump will not prime or pump will not stall
(cycles more than once or twice/hour) 1. Foreign material between Ball (39) and Adapter and Insert Assembly (41)
2. Foreign material between Valve Body (47) and
Valve Seat (48)
3. Worn or damaged Ball (39)
4. Worn or damaged Adapter and Insert
Assembly (41)
5. Worn or damaged Valve Body (47)
6. Worn or damaged Valve Seat (48)
7. Worn or damaged Seal (32)
8. Worn or damaged Piston (36)
9. Worn or damaged Seal (46)
10. Worn or damaged Primer Rod (43)
Locate and eliminate source of foreign material.
Disassemble pump tube, clean, inspect and replace
worn or damaged components.
* Should the pump aerate product, see Section entitled Prove the Pump for details.
Changes Since Last Printing
Changed Configuration of Retainer 319763