Graco Manzel Model 88 Pumps- User Manual
Graco Manzel Model 88 Pumps– User Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – NOTE
- Page 3 – SPECIFICATIONS
- Page 4 – MANZEL MODEL 88 PUMP OPERATING INSTRUCTIONS; PUMP DIMENSIONS; call; FLUID MEASUREMENT CONVERSION DATA
DESCRIPTION
The Model 88 Pump is a heavy-duty precision metering pump
capable of accurately pumping small flows of either mineral or
synthetic oil to machinery injection points. The single-piston
pump is mechanically driven from a camshaft in the reservoir
and is adjustable from 1 to 27 drops per stroke, depending on
the piston size. The pump can develop pressures up to 7500
psi, depending on the piston size. All working parts are totally
enclosed away from dirt, water, and impurities and self-lubricated
at all times by the fluid in the reservoir.
Model 88 Pumps are designed for use in Manzel
®
Model 55 and
76 Box Lubricators, and in Mega, Lincoln and Premier Model 55
Box Lubricators. The output ranges vary slightly depending on the
lubricator.
Model 88 Pumps are rugged, heavy duty units. Each pump
includes a precision machined steel sleeve fitted with an alloy
steel piston.
The pump is actuated by a hardened steel roller - rocker following
a cam for low wear and longer life. The visual sight well is one-
piece injection molded material that is impervious to ultra-violet
rays, and mineral and synthetic oils.
Three (3) piston sizes are available to produce outputs up to 27
drops per stroke in Manzel Box Lubricators and up to 20 drops per
stroke in Mega, Lincoln and Premier Model 55 Box Lubricators.
FEATURES/BENEFITS
Rugged construction for high performance and durability
•
Suction and gravity/pressure feed models for application
•
flexibility
Pump output is easily adjustable
•
Hardened cam roller adds to pump and cam life
•
One piece sight glass means fewer leak path and seal
•
points
OPERATION
Pumps With Vacuum Feed
(Sight Glass Type)
Rotation of the lubricator cam actuates the pump rocker arm
assembly to operate the pump piston. On the piston downstroke,
spring force is exerted on the piston causing it to follow the cam. As
it moves down, a pressure reduction is created in the area between
the piston and the discharge check valve. The supply inlet shutoff
ball is concurrently unseated and lubricant is drawn into the piston
cylinder from the sight well. This action creates a pressure reduction
(vacuum) in the air- tight sight well, causing lubricant from the
reservoir to be drawn into the well until pressure is equalized. On
the piston upstroke, the oil in the piston cylinder reseats the inlet
shutoff ball and is forced out through the discharge check valve to the
machine injection point.
The number of drops seen falling in the sight well equals the amount
of oil discharged by the pump. Pump volume can be adjusted by
means of an external screw. This changes the length of the piston
stroke which changes the pump discharge volume.
Manzel
®
Model 88 Pump
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Summary
Page 2 Manzel ® Model 88 Pump L51025 Pumps With Gravity Feed and Pressurized Supplies Rotation of the lubricator cam actuates the pump rocker arm assembly to operate the pump piston. On the piston downstroke, spring force is exerted on the piston causing it to follow the cam. As it moves down, a pre...
Page 3 Manzel ® Model 88 Pump L51025 Model 88 Pumps Configured for Mega, Lincoln and Premier Box Lubricator, and for Manzel Model 55 Lubricator Model 88 Pumps are interchangeable with Mega, Lincoln and Premier Model 55 Pumps. Use the following table to determine the appropriate part number. SPECIFIC...
` DIMENSION INCHES MILLIMETERS A 2.31 58.7 B 1 4.625 117.5 B 2 4.406 111.9 C 5.375 136.5 D 0.75 19.1 E 1.50 38.1 F 3.00 76.2 G 1 8.53 216.7 G 2 7.75 196.8 H 1 5.53 140.5 H 2 4.75 120.6 J 2.625 66.7 K 1.00 25.4 Repeat (7-c) to assure that the pump is adjusted to the proper e. specification. Once the ...
