Emerson Neotecha Sapro Maintenance And Repair Instructions page 6

Neotecha Sapro Sampling DeviceS
Maintenance and RepaiR instRuctions
SpiNdle Seal replacemeNt
a) Bonnet disassembly
if excessive moisture is found on examination of
the leak detection port (see earlier) this may be
due to wear of the spindle seal. replacement
of spindle seals should be undertaken by
implementing the following procedure.
1. identify the model number of the Sapro
valve under consideration. The model
number of a Sapro valve is given on a metal
tag attached to the exterior of the valve
bonnet.
2. referring to Tables 1 and 3, identify
the appropriate repair kit and tool kit
required for the subject Sapro valve.
3. remove the Sapro valve from the pipeline
NoteS
For bottle adaptor units with handlever only
(See Fig. 13)
a. Unscrew the handlever (10a)
b. Slide off the protective (10b)
c. remove adjustment screw (9a) and lock nut (9b).
cautioN
The bonnet (9) is under spring tension. Follow
these instructions carefully.
4. remove two opposing socket head screws
(8) replacing them with the two threaded
rods from the spring tension device from
Tool kit Sv-W3.
5. place the two-hole plates over the threaded
rods followed by the washers and secure
with wing nuts as shown in Fig. 13.1/14.1.
6. remove the remaining two socket head
screws.
7. gradually loosen the wing nuts until the
spring tension in the bonnet is completely
relieved and then remove the threaded rods.
8. remove bonnet (9) and gasket (8a) from
the valve body.
9. on Bayonet adaptor models only: remove
and replace the X-ring seal (9a) (See Fig. 14).
10. remove the spring (11c) from the spindle.
11. clamp the end of the spindle assembly in a
soft jawed vice and pull the body away from
the spindle assembly.
12. Separate all parts of the spindle assembly
as shown in Fig. 15 and identify replacement
components from the appropriate repair kit.
lever shown in
11c
closed position
Figure 13
Figure 13.1
9a
9b
lever shown in
open position
10b
10a
9
8
8a
Spring tension device
assembly
9a
11c
9
8
8a
Figure 14
Figure 14.1
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