OPERATION
This pump is self–priming. To prime it the first time, you must connect the air supply to the pump and slowly increase the air pressure from 0 to
the desired pressure using a pressure regulator.
The pump starts to pump when an outlet valve is opened, for example an oil control gun.
TYPICAL INSTALLATION
Please see figure 4, a typical installation shown with all the recommended
accesories for the pump to operate correctly.
POS. DESCRIPTION
A
Ball Valve, Low Pressure
B
Filter/Regulator
C
Air hose
D
Quick coupling
E
Connection nipple
F
Pump
G
Pressure Relief Valve
H
Oil hose
I
Ball Valve, Medium Pressure
J
Wall bracket
K
Oil suction hose
L
Ball Valve, Low Pressure
TROUBLESHOOTING
SYMPTOMS
The pump is not working or there is no oil
delivery.
The pump begins to operate very fast.
The pump keeps on operating although the
oil outlet is closed.
Oil leakage through the air outlet muffler (25)
or the leakage warning hole on the pump
body (59).
Air leakage through the air outlet muffler (25).
Oil 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
A
B
C
TO OIL CONTAINER
Part No.
950319+239004
241001
362100
251412
255312
536030
609008
362303
950303
360132
945724+850769+945724
950312+945724+945567
POSSIBLE REASONS
Not enough air supply pressure.
Some outlet line component is clogged or
closed.
The tank is empty or the oil level is beneath the
suction tube inlet.
There is an oil leakage in some point of the
outlet circuit.
Oil has by-passed to the air motor caused by
worn or damaged seal (64).
Damaged or worn piston O ring (44).
The air seal (8) of the inverter assembly is
damaged or worn.
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.
NOTE: The compressed air supply must be between 40 and 180 psi
(2 - 12 bar), and 80 to 100 psi is ideal.
F
D
E
G
J
K
Fig. 4
SOLUTIONS
Increase the air supply pressure.
Clean or open the outlet circuit.
Fill the tank or lower the suction tube until
you reach to the oil level.
Verify and tighten or repair.
Replace the seal (64). Check if the pump
piston (48) is scratched. If so, replace the air
piston assembly.
Replace O Ring (44).
Replace the air seal (8).
Replace the seals (18) and (20).
Remove and clean. Replace if damaged.
Remove and clean. Replace if damaged.
Replace the muffler felt.
I
H
L
R. 06/20 853 801
EN
3