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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 5, a typical installation shown with all the recommended accesories for the pump to operate correctly.
NOTE: The compressed air supply must be between 30 and 170 psi (2 - 12 bar), and 80 to 100 psi is ideal.
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
(51) or the leakage warning hole on the
pump body (48).
Air leakage through the air outlet muffler
(51).
Oil output too low or diminishes over time.
REPAIR AND CLEANING PROCEDURE
WARNING: Before starting any kind of maintenance or repair,
!
disconnect the compressed air supply and open a downstream
valve to relieve the oil pressure.
During the assembly, ensure to apply grease to all the seals.
CLEAN THE MUFFLER
1. Unscrew the 4 screws (52).
2. Remove both exhaust covers (51).
3. Replace both felts (50) by new ones.
4. Put back the covers (51) with their screws (52).
Samson Corporation • One Samson Way • N.C. 28778 Swannanoa • Phone: 00 1 8286868511 • Fax: 00 1 8286868533
A
B
C
Part. No
950319+239004
241001
247710
251438
255338
535830
609008
750361+945558+946605
950300
360139 / 360140
945555+362400
950306+945565
Possible reasons
Not enough air supply pressure.
Some outlet line component is clogged or closed. Clean or open the outlet circuit.
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 (41).
Damaged or worn piston O ring (35).
The air seal (7) of the inverter assembly is dama-
ged or worn.
Damaged or worn spool seals.
Contamination in the foot valve.
Contamination in the upper valve.
The exhaust felts (50) are clogged by compressed
air dirt or lubricant.
F
D
E
G
TO OIL
CONTAINER
J
Fig. 5
K
Solutions
Increase the air supply pressure.
Fill the tank or lower the suction tube until you
reach to the oil level.
Verify and tighten or repair.
Replace the seal (41). Check if the pump
piston (37) is scratched. If so, replace the air
piston assembly.
Replace O Ring (35).
Replace the air seal (7).
Replace the seals 4x14, 15 and 17.
Remove and clean. Replace if damaged.
Remove and clean. Replace if damaged.
Replace the muffler felts (50).
50
51
Fig. 6
I
H
L
50
51
52
52
R. 10/17 853 829
EN
3
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