Troubleshooting - Samoa PM100 Guía De Servicio Técnico Y Recambio

OPERATION
1. Open the bleed air valve (86). The pump can now expel any air
trapped in (fig. 2).
2. Start the pump opening the pumps valve (pos. A), and increasing
the pressure with the regulating filter gradually (pos. B). The
pump starts operating.

TROUBLESHOOTING

SYMPTOMS
The pump is not working or there is
no ink delivery.
The pump begins to operate very fast. Pump dry-runing. The drum is empty.
The pump keeps on operating
although the ink outlet is closed.
Air leabreage through the air outlet
muffler (25).
Ink flow out put too low or diminishes
over time.
REPAIR AND CLEANING PROCEDURE
SEPARATE THE AIR MOTOR FROM THE PUMP
Operate the pump controlling it with the ball valve on the air motor supply (pos. A).
1. With the pump bleed valve open (86), it should be possible to stop the pump in the middle of the stroke. Close the bleed valve (86).
2. Disconnect the air motor supply (pos. D).
3. Remove the guards (62).
4. Remove the bolt (63).
5. Unscrew nut (64).
6. Remove nut (78) and lift the pump air motor to separate from pump.
SAMOA Industrial, S.A. · Pol. Ind. Porceyo, I-14 · Camino del Fontán, 831 · 33392 - Gijón - Spain · Tel.: +34 985 381 488 · www.samoaindustrial.com
POSSIBLE REASONS
No suitable air supply pressure.
Some outlet circuit element is clogged or closed.
There is an air pocket in the ink inlet area.
Air in pump.
There is a ink leakage at some point in the circuit.
Contamination in the piston valve (92).
Contamination in the foot valve (110).
Damage or worm piston U-ring (40).
The air seal of the inventor assembly is damaged
and worm (8).
Damage or worm spool seals.
Contamination in the foot valve (110).
Contamination in the piston valve (98).
The exhaust muffler is clogged log compressed air
dirt or lubricant.
62
Fig. 3
3. Close the pump air bleed valve (86) as soon as the material
trapped air is pumped out of the valve.
4. The pump starts to pump when an outlet valve is opened (pos. H),
for example a ink fountaing.
SOLUTIONS
Increase the air supply pressure.
Clean or open the outlet circuit.
Bleed the air in follower plate.
Bleed the air in pump (86).
Replace the drum.
Verify and tighten or repair.
Disassemble and clean. Replace if damaged (92).
Disassemble and clean. Replace if damaged (110).
Replace U-ring (40).
Replace the air seal (8).
Replace the spool.
Remove and clean (110).
Replace if damaged.
Remove and clean.
Replace if damaged (98).
Clean or replace the muffler left (28).
63
64
78
Fig. 4
R. 07/19 854 815
3