Flotronic F 500 series, Installation, Operation And Maintenance Manual

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Before carrying out these processes it may be necessary, and is certainly advisable, to change the divider
seal fitted in the centre section of the pump body. To carry out this procedure, refer to the individual
section covering the model of pump being serviced.
TIE ROD REASSEMBLY
When the pump is being reassembled on the horizontal centre line, the tie rod must be inserted into
the end of the thrust tube that is closest to the bearing end. See drawing below. If the pump runs for
one stroke and will not then move, the tie rod has been inserted incorrectly.
The above comment applies to standard and also pumps fitted with extra diaphragms for rupture
protection systems (see Sections 6, 10 & 18).
17
Servicing & Diaphragm
Fitting Instructions
Diaphragm
Pump Body
Seal
Enter Tie Rod
into thrust tube
at bearing end
Smaller
diameter hole
Bearings
Thrust
Tube
Larger
Diameter
Hole
Note:
A suitable anti-seize compound, either standard or food-quality should be applied to the tie rod thread to
aid tightening and removal of the large nut. (Example - ‘Never Seez’ from Bostik.)