Troubleshooting - Samoa 532330 Guía De Servicio Técnico Y Recambio

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 out- let
muffler.
Air leakage through the air outlet
muffler (10).
Grease 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 grease pressure.
During the assembly, ensure to apply grease to all the seals.
CLEAN THE MUFFLER (FIG. 2)
1. Unscrew bolts (11).
2. Remove exhaust assembly (10).
3. Unscrew the bolts (15) and remove the cap (14).
4. Remove the felt (17).
5. Remove the felt (13) and deflector (18).
6. Remove the bottom felt (17) and replace it with a new one.
7. Put back the deflector (18).
8. Insert the screws (11) and then a new felt (13). If not in this order,
it could be tricky to insert the screws.
9. Put a new felt (17).
10. Put back the cap (14) and its screws (15).
11. Ensuring the screws (11) stay into the muffler (10), put said muffler
on the motor and fix it with said screws.
12. It is also available a whole muffler assembly kit (539005), which
replaces the old one just operating the screws (11).
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 grease inlet area.
The container 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 (29) or worn or dama-
ged seal (54).
Damaged or worn piston O ring (50).
The air seal (7) 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.
11
Solutions
Increase the air supply pressure.
Clean or open the outlet circuit.
Stir and repack the grease.
Refill the container.
Verify and tighten or repair.
Disassemble and clean. Replace if damaged.
Disassemble and clean. Replace if damaged.
Verify the piston rod (29) and replace damaged
/ worn parts.
Replace O Ring (50).
Replace the air seal (7).
Replace the seals (35) and (36).
Remove and clean. Replace if damaged.
Remove and clean. Replace if damaged.
Replace the muffler felt.
10
18
Fig. 2
13
EN
17
15
14
16
R. 11/19 853 824 3