ABB AV2123000 Positioner User Manual

REPAIR AND REPLACEMENT
8. Place the manifold in place on the positioner so it properly seats
on the bosses.
9. Insert the Allen screws and torque them to 3.5 Nm (31 in.-lbs).
Not all of the Allen screws are the same length. Be sure each screw
mates correctly.
10. To replace the filters and filter cover, refer to MANIFOLD FIL-
TERS in Section 7.
O1
O2
FILTER
COVER
O2
COVER
SCREW
ALLEN
SCREWS
O1
VALVE
HANDLE
MAN
AUTO
I
S
I
T00738A
Figure 8-1. Positioner with Manifold
Gain Hinge Spring
Tools Required: • Flat-tip screwdriver.
•
9⁄
64 -inch Allen wrench.
NOTES:
1. Refer to Table 4-1 for gain hinge spring part numbers.
2. Item numbers in this procedure reference Figure 9-3 or 9-4.
1. Transfer the positioner from automatic to manual operation
(Section 5).
2. Remove the positioner cover by removing the two cover screws.
3. Remove the plug button (Item 29) from the positioner housing.
This opening provides access to the screws.
REPLACEMENT PROCEDURES
8 - 2