GEA ONE 11TS, Instructions For Use And Maintenance Manual

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ONE 7TS – Maintenance
Instructions for removal
IMPORTANT:
The equipment needed for removing the valve seats is NOT included in the maintenance kit. The
head nuts must be tightened to the torque values indicated in the DATA SHEET 00[c]; use a dyna-
mometric spanner (not supplied).
To remove the suction seats simply remove the bottom flanges.
To remove the delivery seats you can use the extractor supplied.
Alterntively, to remove the delivery seats you need to prepare the tools required (available on request from
GEA Niro Soavi S.p.A.
) to perform the procedure described belot, with reference to figure 7-23:
- remove the bottom and top flanges
- pull the plunger back to the inner dead centre
- remove the suction valve seat
(6)
- to remove the delivery valve seat
(1)
use a bar made of soft material, such as bronze or aluminium: in-
sert the bar in the head through the hole in the suction valve; the diameter of the bar should be as large
possible and to improve support, a conical surface can be made to match the bottom part of the seat
- with a hammer pound on the bar until the seat has been removed
Fig. 7- 23
page 7.46
This manual is property of
GEA Niro Soavi S.p.A.
and no part of it may be reproduced.