Alemite 8550-A1 User manual

8550-A1

8551-5

Service Guide

SER 8550-A1

Alemite Corporation

PO Box 473515, Charlotte, North Carolina 28247-3515

www.alemite.com

This document contains confidential information that is the property of Alemite Corporation

397971 and is not to be copied, used, or disclosed to others without express written permission. Revision (3-07)

Figure 1 High-Pressure Pump Model 8550-A1

Description

The major components of these high-pressure pump

models consist of a(n):

• reciprocating air motor

• double-acting pump tube

• cover and follower plate

Pump Assembly

Each high-pressure (50:1 ratio) pump is designed to

deliver a range of greases [up to NLGI # 3] and operate

directly from their original 120-pound container.

Models 8550-A1 and 8551-5

The difference between these models is the extent of

accessory items included. See Figure 1.

Pump model 8551-5 is obsolete, although service

parts and repair kits are available.

Pump model 8550-A1 is current.

Specifications

IMPORTANT: For detailed information on

the pump tube (including specifications

and performance data) refer to SER

331380-A5

For information on the motor, please refer

to SER 324300-5

High-Pressure Grease Pump

Pump Model Dolly, Control Valve, Hose, and Z-Swivel

8550-A1 Not Included

8551-5 Included

SER 8550-A1 High-Pressure Grease Pump

Revision (3-07) 2 Alemite Corporation

Figure 2 High-Pressure Grease Pump Model 8550-A1 - Exploded View

High-Pressure Grease Pump SER 8550-A1

Alemite Corporation 3 Revision (3-07)

Item

No. Part No. Description Qty Notes Numeric Order

Part # (Item #)

1 331380-A5 Pump Assembly, High-Pressure 1 See SER 331380-A5 1000-66 (6)

2 328030 Coupler, Air, 1/4 " NPTF (f) 1 17804 (8)

3 328034 Connector, Air, 1/4 " NPTF (m) 1 43748 (4)

4 43748 Body, Angle, 1/4 " NPTF (m) and (f) 1 48018 (11)

5 315669 Adapter, 3/8 ’’NPTF (m) 1 77786 (10)

6 1000-66 Adapter, Union, 3/8 '' NPTF 1 172207-1 (9)

7 338371 Cover Assembly 1 Includes items 8-11 315669 (5)

8 Washer, 1/4 '' 3 328030 (2)

9 Washer, Lock, 1/4 '' 3 328034 (3)

10 Screw, Cap, 1/4 '' -20 x 1/2'' 3 331380-A5 (1)

11 48018 Screw, Thumb, 1/4 '' -28 x 1-1/8 '' 3 338371 (7)

12 338802 Plate, Follower 1 338802 (12)

Legend:

Part numbers left blank (or in italics) are not available separately

Assembly

NOTE: Refer to Figure 2 for component

identification on all assembly procedures.

CAUTION

Select a clean environment for all assembly proce-

dures. Prevent contamination from foreign mate-

rial. Damage to components can occur.

IMPORTANT: Make sure to remove the pro-

tective cover from the inlet of Pump Assem-

bly (1).

Do not apply thread sealant to the first two

(2) threads of any connection. Contamina-

tion can occur.

1. Screw Union Adapter (6) [with thread sealant] into

Adapter (5) as required.

• Tighten the Union Adapter securely.

• Screw into pump outlet

2. Install Pump Assembly (1) into Cover (7).

3. Secure the Pump Assembly to the Cover with

Washers (8), Lock Washers (9), and Cap Screws (10).

• Tighten the Capscrews securely.

4. Place Follower Plate (12) onto the top of the product.

• With a wobbling motion, eliminate any air that may

be trapped underneath the Follower Plate. Force the

product through the hole in the center of the Plate.

5. Guide the pump tube into the Follower Plate and fit the

Cover onto the container.

6. Secure the Cover to the container with Thumb

Screws (11).

7. Test/Prime the Pump assembly.

• Refer to Service Guide SER 331380-A5 for details.

Changes Since Last Printing

New Format

SER 8550-A1 High-Pressure Grease Pump

Revision (3-07) 4 Alemite Corporation

This manual suits for next models

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