Subject to modifications
User Manual
Operating Instructions
2.2A-20003-B07
LINCOLN GmbH • Postfach 1263 • D-69183 Walldorf • Tel +49 (6227) 33-0 • Fax +49 (6227) 33-259
Page 7 of 26
Description
Progressive Metering Device Model SSV D
6496b05
Fig. 9
Schematic of the SSV D metering device
1 - 6 Outlets
A - C Control and metering piston
Progressive Plunger Metering Devices, General
The progressive metering devices
- are piston-operated metering devices.
- automatically (progressively) dispense the lubricant fed
by the pump to the connected lubrication points.
- have a
lubricant output of
0.07 / 0.14 / 0.2 / 0.3 / 0.4 /
0.6 / 0.8 / 1.0 / 1.4 und 1.8 cm³ per outlet and piston
stroke (see page 8, paragraph „Metering Screw “).
- when one or more outlets are closed (see page 15,
paragraph „Cross-porting of Outlets“) they can dispense
double or multiple lubricant quantities.
- are available with 1 to 22 outlets.
- offer the option of combining several lubrication points
into one centralized lubrication point.
- meter the supplied lubricant into predetermined single
quantities.
- can be monitored visually (see indicator pin, Fig. 22,
page 16) or electronically (see piston detector or prox-
imity switch, Fig. 23, page 17).
- offer optimum metering possibilities by means of one or
more subsequently positioned SSV D metering devices.
Any blockage in a lubrication circuit is indicated by grease
leaking from the respective pressure relief valve.
6512b05
Fig. 10
Metering and control piston assy
1 -
Metering piston
2 -
Control piston
P -
Input pressure
D -
Larger metering piston diameter
d -
Smaller control piston diameter
S -
Larger fit-tolerance of the metering piston
s -
Smaller fit-tolerance of the control piston
L -
Continual running surfaces of metering piston and cylinder
l -
Interrupted running surfaces of control piston and cylinder
Features of a Progressive Metering Device
The term ”progressive
” refers to the special features of
the lubricant distribution within the metering devices,
e.g.
- the successive movements of the individual pistons
within the metering device due to the supplied lubricant
being under pressure;
- the pistons move in a predetermined order and the cy-
cles are repeated constantly;
- each piston must have completed its movement fully
before the next piston can be moved, no matter whether
the lubricant is dispensed continuously or intermittently;
- the pistons operate interdependently of one another;
- no lubrication point that is connected to the system is
omitted.
Function Principle and Reliability
The progressive function sequence results from the inter-
action (see Fig. 12-18, as of page 9) of each metering and
control piston assy (see Fig. 10) whereby the metering
piston has priority over the control piston.
The softer running of the metering piston is warranted by
several factors:
- Larger piston surface D at constant input pressure P in
the total SSV D
- Assembly with larger fit-tolerance S
- Continual running surfaces of piston and cylinder
