Samoa 531410 Guía De Servicio Técnico Y Recambio página 3

TYPICAL INSTALLATION
Figure 4 is a typical installation shown with all the recommended accessories for the pump to operate correctly.
NOTE: The compressed air supply must be set between 2 and 14 bar (29 and 200 psi), being 6 bar (90 psi) the recommended pressure. An air
closing valve must be installed, in order to be able to close the compressed air line at the end of the day (If the air inlet not is closed and there is a
leakage in some point of the grease outlet circuit, the pump will start automatically, emptying the container).
POS DESCRIPTION
A Air shut off valve
B Filter regulator
C Air hose
D Quick coupling
E Connection nipple
F Pump (185 kg drum)
G Grease hose
H Grease shut off valve
I Cover
J Follower plate
K Pressure Relief Valve
OPERATION
This pump is self–priming. To prime it the first time, it is convenient to connect the air supply to the pump while keeping the outlet gun opened,
and increase the air pressure slowly from 0 to the desired pressure by using a pressure regulator. Once grease starts flowing through all the outlets,
the pump is primed.
The pump starts to pump when an outlet valve is opened, for example a grease control gun.
NOTE: It is important that the foot valve do not come in contact with dirty areas, such as a workshop floor, because it may become contaminated with
dirt or other particles that can damage the seals.
TROUBLESHOOTING
Symptoms
The pump is not working or there is
no grease delivery.
The pump begins to operate very fast.
The pump keeps on operating
although the grease outlet is closed.
Grease leakage through the air outlet
muffler or the leakage warning hole
on the pump body (69).
Air leakage through the air outlet
muffler (25).
Grease output too low or diminishes
over time.
SAMOA Industrial, S.A. · Pol. Ind. Porceyo, I-14 · Camino del Fontán, 831 · 33392 - Gijón - Spain · Tel.: +34 985 381 488 · www.samoaindustrial.com
PART NO.
950319+239004
241001
362100
251412
255412
531410
412392
950304
418026
417004
Possible Reasons
No suitable air supply pressure.
Some outlet circuit element is clogged or closed.
There is an air pocket in the grease inlet area.
The drum is empty or the grease level is beneath the
suction tube inlet.
There is a grease leakage at some point in the circuit.
Contamination in the upper valve.
Contamination in the foot valve.
Grease has passed over to the air motor caused by
scratched piston rod (49) or worn or damaged seals
(54, 57).
Damaged or worn piston O ring (44).
The air seal (8) of the inverter assembly is damaged or worn. Replace the air seal (8).
Damaged or worn spool seals.
Contamination in the foot valve.
Contamination in the upper valve.
The exhaust muffler is clogged by compressed air dirt
or lubricant.
K
Increase the air supply pressure.
Clean or open the outlet circuit.
Stir and repack the grease.
Replace the drum or insert the suction tube
until the inlet reaches the grease level.
Verify and tighten or repair.
Disassemble and clean. Replace if damaged.
Disassemble and clean. Replace if damaged.
Verify the piston rod (49) and replace damaged
/ worn parts.
Replace O Ring (44).
Replace the seals (18) and (20).
Remove and clean. Replace if damaged.
Remove and clean. Replace if damaged.
Replace the muffler felt.
EN
Fig. 4
Solutions
3
R. 06/20 853 804