Vesper Delimon BS B Series Operating Instructions Manual

Grease Lubrication Pump BS - B
Operating Instructiones
CONFIGURATION
The pump can be supplied at choice, either coupled
with an electic geared motor, or with transmission gear box
and free-end stud. The rotaring drive shaft fitted with an ec-
centric inside the pump head oscillates a rocker arm to
which the pistons are connected.
DRIVE
The pump consists of the housing with the pump
head, and a lubricant reservoir mounted on top. An integral
pressure relief valve is incorporated in the pump head.
PRINCIPLE OF FUNCTIONING
Reservoir with wedge plate assy. and scraper
A ratched mechanism (39 - 43) (page 5, section G - H)
converts the oscillating motion of the rocker arm (77)
(page 6, section E - F) into rotary motion of the feed worm
(wedge plate assy. 4) (page 5) and the scraper (34) atta-
ched to it. Irrespective of the direction of drive of the motor
the two parts always rotate clockwise causing the grease
to be scraped off the wall of the reservoir (1) and forced
into the housing (17), thus eliminating cavitation and ensu-
ring positive priming of the pump unit.
Pump head
The pump head is secured in the housing (17) by 8 cap
screws. It comprises a flange (52) (page 6, section A - B)
with an eccentric (74) (section I - K) running on a ball bea-
ring, and the pump element (section I - K) bolted to the
flange.
The eccentric (74) causes a reciprocating motion in
the rocker arm (77).(section E - F) The two feeding pistons
(84) are connected to the rocker arm.
The BS - B double acting pump operates with two
pairs of pistons simultaneously such that, as one pair of pi-
stons is on the suction stroke, the other pair forces the lu-
bricant to the outlet ports, through the pressure connec-
tion. Each of the two feed pistons fitted in the housing
(82) comprises two control pistons (80, 83) in a common
bore.
Suction stroke
At the start of the suction stroke, the pistons (80, 83,84)
are moving together towards the suction channel until the
spring-loaded control piston (83) is pressed against the
stop thus reaching its final position.
As the delivery plunger (84) continues to move, a va-
cuum is created between the feed plunger (84) and the
control plunger (83). As soon as the feed plunger (84) un-
covers the suction port, the vacuum, in conjunction with
the slight overpressure of the lubricant in the pump hou-
sing (17), causes lubricant to be sucked into the cylin-
der.
PRINCIPLE OF FUNCTIONING
If the force of the spring (81) is not sufficient enough to
enable to move the control piston (83) to the stop into the
final position in the housing (82), the control piston (83) is
bound to be positively controlled at the end of the stroke,
by the rocker arm (77) and displaced into its final position
mechanically, thanks to a second control plunger (80)
being provided.
Pressure stroke
Now the feed piston (84) moves towards the pres-
sure connection closing the suction channel. The lubri-
cant enclosed by the feed piston (84) and control piston
(83) is moved axially, against the force of the spring (81). At
the moment the annular groove in the control piston (83) is
reaching the pressure channel, the axial movement of the
control plunger stops. The lubricant is forded by the feed
plunger (84) rotating in axial direction into the pressure
channel. As soon as the two plungers (83, 84) make con-
tact, the stroke of the feed plunger is terminated.
COMMISSIONING
Pump installation
Install the pump vertically. Then connect the motor to
the control panel (refer to wiring diagram). The motor may
rotate in either directions, but with the view to the gearing of
the transmission gear box, it is recommended that is
should run clockwise.
Filling the reservoir and pipe lines
Efficient operation demands the use of only clean lu-
bricant! Contamination of the lubricant can lead to ope-
ration trouble and damage. To shorten the time of the initial
start-up it is advisable to fill the grease using a barrel pump
or a press via the R-outlet. Containers should only be
re-charged via the filler plug provided, preferably by use of
a filling pump or grease gun, or from the works bulk supply
system. The container must always be kept closed and
care taken in ensuring that the lubricant is kept free from
dirt and other contamination. Recharging of the container
at the correct time is most important, otherwise there is a
risk of air finding its ways into the pump and main lines. In
contrast to other pumps, no oil is required to be charged
for initial start-up.
To ensure trouble-free functioning the pump itself
should be de-aerated by running it for a period without
back pressure. As soon as the lubricant is discharged free
of air from pressure connection (P), the feed lines can be
connected. Run the pump then and continue to bleed all
main lines, then make the connection to the metering ele-
ments.
(Continue)
22123 BA 1e / 03 0493 1000HF
replacement for 22123 BA 1e/2
.