Alemite 7896-A5 Посібник з експлуатації - Сторінка 9

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Medium-Pressure Material Pump

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

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

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. 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 (29).

2. Remove Screws (5), Lock Washers (7), and Nuts (8)

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 (16). See Figure 6.

4. Lower the Air Motor onto the wood block.

Alemite Corporation

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.

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 Plate (15).

10. Clamp the pump assembly horizontally in a vise

(material outlet upward) at Body (19).

11. Unscrew and remove Extension Cylinder (31) [with

attached components] from the Body.

• Use a strap wrench.

12. Remove O-Ring (30) from the Extension Cylinder.

Body Packing

13. Remove Screw (28) from the Body.

• Access is through the Body's outlet.

14. From the bottom of the Body remove:

• Spacer (27).......................................................Qty 1

• Male Rings (25) ...............................................Qty 2

• V-Packings (24) ...............................................Qty 8

• Female Rings (23) ...........................................Qty 2

• Washers (22) ....................................................Qty 3

• Lantern Ring (26) ............................................Qty 1

Figure 6 Separation of Air Motor from Pump Tube with

use of Wooden Block

SER 7896-A5

Revision (2-04)