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
Copyright © 2000 by Alemite Corporation
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Pump model 8551-5 is obsolete, although service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