ALBIN PUMP ALH Series, Инструкция по эксплуатации

Страница: 18 / 49

6.4.2 REPLACEMENT OF THE SEAL RING REF27 AND THE SHAFT SEAL REF26
Albin hose pumps are equipped with a leakage channel that allows to see the wear of the seal ring or the shaft seal. This channel is at
the back of the pump casing underneath the gearbox flange. It also protects the gearbox seals by leaving the lubricant or the
product to pass freely at the back of the pump casing.
PUMPS ALH05 to ALH65 (refer to the nomenclature §9.3. for the landmarks of parts).
1. Isolate the pump from the power supply.
2. Empty the lubricant and clean out the pump (see §6.1).
3. Remove the pump hose (see §6.3.1).
4. Disassemble the pump cover and withdraw the cover seal REF10.
5. Disassemble the wheel by unscrewing the expansible hub REF19.
6. Withdraw the wheel of the pump shaft with a suitable lifting equipment.
7. Support the gear motor with a suitable lifting equipment.
8. Unscrew the nuts REF41 and withdraw the gearbox from the pump casing.
9. Extract the damaged seal ring REF27.
10. Slip on the spacer ring REF73 if necessary and glue to the shaft. Position
the new seal ring REF27 against the spacer ring or the gearbox shaft’s
shoulder. Fill the the key groove with silicone mastic to ensure correct sealing.
11. Withdraw the shaft seal REP26 with a drift punch.
12. Replace a new shaft seal REF26 with an appropriate tool (wooden or plastic cylinder).
Check the mounting position of the seal (opened side turned to the cover).
REF 41
REF 72
LEAKAGE CHANNEL
REF 27