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Medium-PressureStainless  Material Pump

SER 7886-S5

Alemite Corporation

7

Revision (8-00)

Access to Body Packing

  8. Remove lower Spring Clip (10) that secures Rod (11

to the Coupling.
• Remove the Coupling from the Rod.

  9. Remove Packing Screw (12) from Gland Screw (16).

10. Clamp the pump assembly horizontally in a vise at 

Body (23).

11. Unscrew and remove Cylinder (24) [with attached 

components] from the Body.
• Use a wrench on the Bung Adapter.

Body Packing

12. Remove Gasket (22) from the bottom of the Body.

13. Remove Screws (13) and Lock Washers (14) that 

secure Upper Mounting (15) to the Body.
• Remove the Upper Mounting.

14. Remove Gland Screw (16) [with attached 

components] from the Body.

15. Remove Washer (21) and Gasket (22) from the top of 

the Body.

16. From the bottom of the Gland Screw remove:

• Male Support Ring (20) ...................................Qty 1
• V-Packings (19) ...............................................Qty 5
• Female Support Ring (18)................................Qty 1
• Washer  (17)......................................................Qty 1

Overhaul

NOTE: Refer to Figure 3-A and 3-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

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. Lubricant discharged at
high velocity can penetrate the skin and cause
severe injury. Should any fluid appear to puncture
the skin, get medical care immediately.

Read each step of the instructions carefully. Make
sure a proper understanding is achieved before
proceeding.

Disassembly

 

Separate Air Motor from Pump Tube

  1. Clamp the pump assembly vertically in a vise at Bung 

Adapter (25).

  2. Remove Screws (3), Lock Washers (4), and Nuts (5

that secure the Air Motor Assembly to the Pump Tube 
Assembly.

  3. Lift the motor upward to expose upper Coupling (9

and at the same time place a wood block (2" x 4") onto 
the surface of Upper Mounting (15). See Figure 4.

  4. Lower the Air Motor onto the wood block.

  5. Remove upper Spring Clip (10) that secures the air 

motor piston to the Coupling.

  6. Rotate the Coupling until the air motor piston is free.

  7. Remove the Air Motor Assembly.

Figure 4

Separation of Air Motor from Pump Tube with 

use of Wooden Block

Summary of Contents for 7886-S5

Page 1: ... the motor which protects the motor from product contamination allows separation without product leakage The pump tube is designed to enable the delivery of a variety of materials This medium pressure 11 1 pump contains a bung adapter 2 NPTF m that allows operation directly from original 55 gallon 200 205 l drums Specifications Air Motor Pump Tube Piston Diameter Stroke Air Inlet Outlet Max Air Pr...

Page 2: ...e 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 Air Hose Muffler Cover 55 Gallon 200 205 Liter 317811 5 324170 318040 4 338984 322590 4 This cover contains an inspection fill port Table 2 Pump Model 7886 S5 Accessories Hoist Description Pump Hoist Model Material Follower Plate Adapter 35 lb 400 lb Single Post 7886 ...

Page 3: ...e SER 323440 4 77807 5 3 Screw 1 2 20 x 2 4 Included with Item 2 172207 4 4 4 172207 4 Lockwasher 1 2 4 323440 A1 2 5 Nut 1 2 20 4 323842 1 6 328037 Connector 3 4 NPTF m 1 327675 5 8 7 328031 Coupler Air 1 2 NPTF f 1 328031 7 8 Tube Assembly Pump 1 See Figure 3 B 328037 6 Legend Part numbers left blank or in italics are not available separately Figure 3 A Medium Pressure Stainless Material Pump Mo...

Page 4: ...SER 7886 S5 Medium Pressure Stainless Material Pump Revision 8 00 4 Alemite Corporation Figure 3 B Medium Pressure Stainless Material Pump Model 7886 S5 Exploded View ...

Page 5: ...ainless Steel 1 326908 1 24 22 330478 Gasket Stainless Steel 4 3 in kit 1 in kits 326909 10 23 326906 Body Stainless Steel 1 326911 26 24 326908 1 Cylinder Stainless Steel 1 327278 16 25 326750 A1 Adapter Bung 2 NPTF m 1 327279 21 26 326911 Coupling Stainless Steel 2 327650 37 27 327655 Rod Stainless Steel 1 327651 35 28 327653 Stem Stainless Steel 1 327652 33 29 327657 Stop Stainless Steel 1 3276...

Page 6: ...SER 7886 S5 Medium Pressure Stainless Material Pump Revision 8 00 6 Alemite Corporation ...

Page 7: ... injury may occur WARNING 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 Lubricant discharged at high velocity can penetrate the skin ...

Page 8: ... the product dispensed The solvent should be environmentally safe 2 Make sure to remove the thread sealant from both male and female threaded connections 3 Inspect all parts for wear and or damage Replace as necessary 4 Inspect Piston 11 and Cylinder 24 closely Use a magnifying glass to detect any score marks Replace as necessary 5 Closely inspect the mating surfaces of all check valve components ...

Page 9: ...Medium PressureStainless Material Pump SER 7886 S5 Alemite Corporation 9 Revision 8 00 Figure 5 Pump Tube Assembly 327675 5 Section View Refer to Figure 3 B Parts List for Parts Identification ...

Page 10: ...f the Stop The distance must not be less than 0 23 5 8 mm and no greater than 0 26 6 6 mm See Figure 5 NOTE This setting effects the efficiency of the pump 20 Install Spring Clip 10 Rod and Cylinder 21 Install the Valve Seat and Packing assembly onto Rod 27 until the Spring Clip holes align 22 Install Spring Clip 10 23 Screw upper Coupling 26 onto the Rod until the Spring Clip holes align 24 Insta...

Page 11: ... onto the Pump Tube Assembly 47 Install Screws 3 Lock Washers 4 and Nuts 5 that secure the Air Motor Assembly to the Pump Tube Assembly Tighten the Screws securely in a crisscross pattern Bench Test and Operation WARNING Do not exceed the lowest pressure rating of any component in the system Never point a control valve at any portion of your body or another person Product discharged at high veloci...

Page 12: ...o 100 psi 6 9 Bar 15 Operate the control valve into the container momentarily 16 Shut off the control valve Visually inspect the pump for external leaks The pump should not cycle more than once or twice in one hour If the pump does not stall refer to the Troubleshooting Chart for details 17 Check the motor for air leakage If the motor leaks refer to the Air Motor Service Guide for details 18 Open ...

Page 13: ...ed Piston 11 1 Tighten Packing Screw 12 with use of torque bar 2 Replace V Packings 19 3 Inspect Piston 11 and replace as necessary Product leakage visible at top of Body 23 1 Gland Screw 16 not sufficiently tight 2 Damaged Gasket 22 1 Tighten Gland Screw 16 2 Replace Gasket 22 Product leakage visible at bottom of Body 23 1 Pump tube not sufficiently tight 2 Damaged Gasket 22 1 Tighten pump tube a...

Page 14: ...ure Stainless Material Pump Revision 8 00 14 Alemite Corporation Every effort has been made to ensure that the information within this publication is accurate Please send any comments or inquiries to chris schrader btrinc com ...

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