Albin Pump ALH Instruction Manual Albinpump.com albinpump@irco.com 21
since 1928
6.5 - SHOE SHIMMING
NOTE: this paragraph does not concern pumps ALH05 to ALH20.
CAUTION! The shimming of shoes is an operation which consists of
adding shims under the shoe to stop any internal leakage. An internal
leakage considerably reduces the life time of the hose as well as the ow.
As a result, it is essential to adjust the shoe’s shimming according to the
rotation speed of the pump, the desired discharge pressure and the liquid
viscosity.
WARNING! Never run the pump without the sight glass.
The shoe shimming can be made without disassembling the hose or the cover.
Shims are inserted or withdrawn by the sight glass as pointed out below :
1 - Jog run the motor and bring a shoe in front of the sight glass.
2 - Cut the power supply of the pump.
3 - Unscrew the sight glass bolts and withdraw taking care in not damaging the seal.
4 - Slightly unscrew the shoe’s fastening bolt(s) and lift the shoe o the wheel with a
screwdriver or a similar tool.
5 - You can now either slide in or withdraw the necessary number of shims under the shoe.
Consult the shimming table §9.8 to determine the
precise number of shims according to the application.
6 - Tighten the shoe bolts, reference table in §9.11.
7 - Reassemble the sight glass with its seal.
8 - Re-connect and jog run the motor to bring the second shoe in front of the sight glass.
9 - Cut the power supply of the pump.
10 - Repeat operations 3, 4, 5, 6 and 7. Replace the sight glass seal (REF 46) if necessary.
ALH
Maintenance
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