2
The Multi-Point Lubrication System
2.1 Function
Using a MEMOLUB
®
distribution block, the MEMOLUB
®
HPS Multi-Point System can service from 2 to 12 lubrication
points. The distribution block is completely sealed to keep out
airborne contaminants, dust, and dirt, and works on the
principal of piston valves. During operation, a series of pistons
inside the block is actuated by the flow of lubricant from the
MEMOLUB
®
lubricator. Lubricant flows through a series of
internal channels in the distribution block, when one piston
valve is filled the other is emptied through its output port. The pistons move in a
prearranged sequence to allow for the progressive distribution of lubricant to all lubricant
points.
A built-in check function can be used to confirm that the
system is operating properly. An indicator pin is located
on the last piston of the distribution block. The pin
moves back and forth at the completion of a lubrication
cycle. If there is a blockage anywhere in the system, the
system stops lubricating and the indicator pin ceases to
move. Visual inspection of the indicator pin can be used
to verify proper operation of the system.
To remotely and continuously monitor operation of the system a distribution block with
an optional limit switch is available. An electric circuit is attached to the limit switch. The
limit switch is activated by the indicator pin, which makes or breaks contact in the
electrical circuit. This signal may be tied into a monitoring device to display visual or
audible indication of the systems operation.
2.2 Distribution
Blocks
On each output cycle of the distribution block each outlet port ejects .3cc’s of lubricant.
Multi-point systems are available using distribution blocks with an even number of outlet
ports (i.e. 4, 6, 8, and 12). Multi-point lubrication systems are designed using these basic
distribution blocks and the coupler bridging elements described in
Section 2.3
below. The
coupler bridging elements permit the design of systems with a number of outlet ports
other than those of the basic distribution block.
MEMOLUB
®
multi-point lubrication systems are generally delivered to the user pre-
assembled with the specified number (2 through 12) of lubricant outlet ports, charged
with the appropriate lubricant and ready to install. Tubing pre-filled with the desired
lubricant is available in various lengths to facilitate installation. These ready-to-use
systems are termed MEMOLUB
®
Plug 'n Lube
™
Systems. Empty tubing is also available
which the user may charge with lubricant upon installation.
MEMOLUB
®
HPS User’s Guide
Page
7 of 39
PLI,
LLC
