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MAINTENANCE
43
7.8
Adjusting hose compression force
(shimming)
Remove the pump cover before fitting and removing
shims. In order to determine the correct number of
shims for your specific application refer to §
1.
Jog the motor until the pressing shoe (B) is
positioned between the inlet and outlet port (A).
2.
Isolate the pump from the electrical supply.
CAUTION
Too many shims, this means a too high
compression force on the pump hose, will
create a too high load on the pump head
and pump hose, which may result in a
reduction of the life of the pump hose and
bearings.
CAUTION
Too few shims, this means a too low com-
pression force on the pump hose, create a
loss of yield and slip or backflow. Backflow
results in a reduction of the life of the pump
hose.