SKF LINCOLN Centro-Matic P653S Serie Instrucciones De Uso Y Mantenimento página 12

Pump element operation
Pump element († Fig. 13 and
14, pages 16 and 17) is a single stroke
spring-based pump. Motor drives
eccentric (1). Eccentric is in constant
contact with plunger (2).
Compression spring (3) is pushing
plunger (2) to open lubricant passage to
create vacuum to prime pump with lubricant
from reservoir. Check valve (4) is closed to
isolate supply lines of system.
Eccentric (1) is pushing plunger (2) in
opposite direction to pump lubricant,
developing operating pressure.
Check valve (4) is open to pass lubricant to
supply lines.
Body of pump element has a
lateral outlet (5) († Fig. 12) for lubricant
crossporting to internal material passages to
combine outlet of all three pump elements.
Any one of the three elements can be
used as a pump outlet. Remaining two
elements should be closed with
plug (A) († Fig. 12).
NOTE
Use only pump elements designed for
operation in P653S pump. No other pump
elements should be used. See parts listing
for correct pump element part number.
Pump element Z7 for internal lubricant crossporting
A
A Closure plug (connection G
/ in for main line)
1
4
2 Piston
3 Spring
5 Lateral outlet for lubricant crossporting
1
1
12
3
5
3
2
2
3
Fig. 10
2
Fig. 11
4
Fig. 12
4