Alemite 8301 Servicehandleiding - Pagina 9

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Alemite 8301 Servicehandleiding
SYMPTOM
Little or no flow
Pulsating flow
Unbalanced pumping
Air exhaust from discharge
Liquid returns from inlet
Pump does not stop when
discharge is closed
Abnormal sound in exhaust
page revised 6-03
POSSIBLE CAUSE(S)
1. Insufficient air supply.
2. Closed valve or clogged line.
3. Piping too small.
4. Spool valve stopped in neutral
position.
5. Damaged spool valve.
6. Clogged diaphragm chamber.
7. Relief valve not adjusted
properly.
8. Damaged diaphragm.
9. Incorrectly positioned and
plumbed.
10. Clogged muffler.
1. Some pulsating flow is normal.
2. Clogged check valve.
3. Damaged check valve disk.
4. Damaged check valve seat.
5. Air leak in suction line.
6. Clogged discharge line.
7. Clogged diaphragm chamber.
1. Damaged diaphragm.
2. Damaged check valve disk.
3. Damaged check valve seat.
4. Damaged spool and detent.
1. Damaged diaphragm.
2. Air leak in suction line.
1. Damaged check valve disk.
2. Damaged check valve seat.
3. Viscosity of liquid too high.
4. Pump speed too fast.
1. Clogged check valve.
2. Damaged check valve disk.
3. Damaged check valve seat.
4. Air leak in suction line.
Clogged diaphragm chamber.
Table 1: Trouble-Shooting Chart
SER 8301
CORRECTIVE ACTION
1. Check air supply.
2. Open valve or remove
restriction.
3. Increase piping size; should
be at least one size larger
than pump port.
4. Push Reset Button for
manual start.
5. Repair or replace valve.
6. Clean diaphragm chamber.
7. Adjust or clean.
8. Replace diaphragm.
9. Position pump with discharge
at top and suction at bottom.
Pump must be mounted
horizontally.
10. Clean or replace muffler.
1. None required.
2. Clean or replace.
3. Replace disk.
4. Replace seat.
5. Repair or replace.
6. Clean line.
7. Clean diaphragm chamber.
1. Replace diaphragm.
2. Replace disk.
3. Replace seat.
4. Replace spool and detent.
1. Replace diaphragm.
2. Repair or replace.
1. Replace disk.
2. Replace seat.
3. Reduce pump speed.
4. Reduce pump speed.
1. Clean or replace valve.
2. Replace disk.
3. Replace seat.
4. Repair or replace.
Clean diaphragm chamber.
page 9