IMPORTANT NOTE
FOR REASONS OF SAFETY
AND PRODUCT INTEGRITY,
THE OPERATOR MUST
RESTRICT HIMSELF TO
ORDINARY MAINTENANCE
(FILTERS, SILENCERS,
CLEANING...) WHEREAS
FOR ANY INTERVENTIONS
OF EXTRA- ORDINARY
MAINTENANCE OR
REPAIR, ALWAYS CON-
TACT OUR SALES AND
SERVICE CENTRES.
STARTING UP
Fig. 1 - Fit a tube for
compressed air to the air
intake reduction A of the
air-operated pump, by
means of 1/4" threaded
fittings G.
The compressed air supply
must not exceed 8 bar.
GREASE DELIVERY
TUBE
Fig. 1 - Before connecting
the grease delivery tube C
(supplied on request), to
the liquid outlet reduction
of the air- operated pump,
operate the pump for
20-30 secs. max. so that
the grease comes out of
the same.
DIFFICULT SUCTION
If grease delivery is not obtained (formation of
air pockets) it is advisable to lift the air- operat-
ed pump (fig. 2) and pour 200-300 cc of SAE 40
oil in the suction zone of the same in order to
eliminate the suction of air. This operation is
nearly always necessary when the grease used
is not of the self- levelling type, the diaphragm
is not used and the grease has been hardened
by the cold.
As soon as the grease comes out the pump,
connect tube A (fig. 3) and, at the end of the
tube, gun B supplied on request. Operate the
pump by keeping the delivery gun open until
grease comes out. If the grease fails to come
out, check the tube and gun.
GREASE DIAPHRAGM (fig. 4)
For regular, trouble-free operation, we always recommend application of the grease
diaphragm M, especially when self-levelling greases are not used. The diaphragm, which
is pulled towards the bottom of the drum by suction pressure caused by the air-operated
pump, compresses the grease, preventing the formation of air pockets which could cause
a blockage in delivery. Always keeping the grease clean will preserve its characteristics
and also enable the grease, which without a diaphragm would otherwise remain stuck to
the walls of the drum, to be collected from the bottom and almost totally drawn.
FORCED LUBRICATION
The condensation in compressed air can slow down
and even block the motor cylinder; in order to prevent
this from happening, every now and again operate the
aeropulsometer for a couple of minutes after having let
in, from the air inlet hole, 50 grams of vaseline oil, or in
any case, another very fluid oil. If necessary, repeat this
operation until the motor is perfectly lubricated.
FILTER CLEANING
In the event of poor or slow grease delivery, check the
state of filters A - B - C.
TRANSPORT AND HANDLING
The air-operated grease pumps
are supplied packed, assembled
and ready to us. Do not disperse
the container in the environment.
No special attention is needed
when handling and packing new
air- operated pumps.
National-Spencer Inc.
1213RAR Operating Guide
