Operating Manual
Wearplates
1. Before fitting new wearplates thoroughly
clean the inside of the rotorcase where the
wearplates will be sealed. In addition wipe
clean the rear face of the new wearplates.
2. The new wearplates will be supplied with
the studs already attached.
3. Just prior to fitting the wearplates apply
silicon sealant, or similar, to the wearplate
studs.
4. Insert the new wearplates through the front
of the rotorcase ensuring that the studs
pass through the holes in the rear of the
rotorcase.
5. Assemble nuts to the studs at the rear of the
rotorcase and tighten to a torque of 8Nm
(5.9 lbft).
Replacing Wearplates
All pumps in the series D range can be fitted with
wearplates . When worn the wearplates can be
replaced thus increasing the life of the pump.
Wearplates can be replaced without removing
the rotorcase, but access to the wearplate
retaining nuts may be increased if the rotorcase
is removed.
Removing Old Wearplates
1. Remove the front cover and rotors as
described. If considered necessary,
remove rotorcase.
2. Loosen and remove the wear plate stud
retaining nuts from the rear of the rotorcase.
3. Next the wearplates, with the studs still
attached, may be removed from the front of
the rotorcase where the wearplates will be
seated.
Fitting New Wearplates
9.9 Wearplates
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