Flotronic F 500 series, Инструкция по установке, эксплуатации и обслуживанию

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Section 11 - F Series 500 Style Plastic & Aluminium Pumps
All previous maintenance instructions up to & including Section 10 apply to F series 500 style pumps but
in addition, the following procedures apply.
PUMPS WITH 7”, 10” AND 12” DIAMETER DIAPHRAGMS
First the large main nut on the horizontal centre line assembly must be slackened. Access to balls and
seats can be made with the pump standing on its base plate but disconnected from adjacent pipe-work.
Remove the delivery manifold by first undoing the nuts and removing washers on the long studs which
pass through the complete pump assembly.
Pulling the delivery manifold assembly upwards will expose the balls, seats and manifold seals for cleaning
and replacement as required.
Lift the body section upward on the studs to expose inlet balls, seats and seals for cleaning and
replacement as required.
Reassemble in reverse order ensuring that the assembly is true and square before replacing and
tightening the four top nuts & washers. Refer to Section 8 for torque figures. Tighten nuts in rotation and
diametrically opposite when reassembling. On pumps with 12” diameter diaphragms ensure that the
side support plates are re-fitted.
This operation can be carried out independently of the earlier instructions concerning horizontal centre
line, diaphragm components etc. subject to slackening and re-tightening the main nut as paragraph
1 above.
Divider seals on this model are of two types. If the pump is fitted with a stainless steel thrust tube,
then the replacement of the divider seal should be made by first prizing out the old divider seal using
a sharp knife or pointed instrument. Then carefully cleaning the groove to ensure that repositioning of a
new divider seal can be made easily.
Having ensured that the groove is thoroughly clean, grip the outer periphery of the seal between the
thumb and forefinger in one hand, then using the thumb and the forefinger of the other hand, grip the
outer periphery at right angles to the existing grip.
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F Series 500 Style
Plastic & Aluminium Pumps