8.9 Adjust the 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 "Shims
specifications" on page 85.
CAUTION
Too many shims, this means a too high compression force on the pump
hose, create a too high load on the pumphead and pump hose, which
results in a reduction of the life of the pump hose and bearings.
CAUTION
Too few shims, this means a too low compression 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.
1. Jog the motor until the pressing shoe (B) is positioned between the inlet and outlet ports (A).
2. Isolate the pump from the electrical supply.
66 m-bredel-25-32-en-05
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