Installation and Maintenance
Part Number: E2K-402-0313, Rev. A
Mar 2013
11
Section 4: Limit Switch Setting Instructions
Limit Switch Setting Instructions
3. Line up LSO indicator: If switch rotor arrow does not line with round holes (within ±
15°) on plate as shown in g. 8a, rotate screwdriver in same direction noted in Step
1 until switch just rotates. If arrows line up as shown in g. 8b, rotate screwdriver in
the opposite direction until switch just rotates.
Figure 8
4. Re-engage the spring-loaded drive gear by rotating disengage shaft in g. 8a.
Spring loaded disengage shaft will rise.
5. IMPORTANT: to ensure limit switch gears have re-engaged properly with spring
loaded drive gear, rmly “jiggle” (rotate) all adjusting shafts with screwdriver back
and forth. Proper engagement has been made if all shafts (LSC, LSO, LSA & LSB)
will not turn with screwdriver.
4.2 SET (LSC) CLOSE LIMIT SWITCH
1. Close valve, using handwheel. During handwheel operation note rotation direc-
tion of screwdriver in LSC adjusting shaft. After valve is fully Closed, Open it three
handwheel turns to allow for coast.
2. Repeat steps 2 through 5 of LSO setting instructions with screwdriver in LSC cavity.
IMPORTANT:
“jiggle” adjusting shafts.
4.3 TO SET INTERMEDIATE SWITCH (LSA OR LSB),
if included.
1. Open Valve to desired position, then repeat steps 2 thru 5 of LSO.
IMPORTANT:
“jiggle” adjusting shafts.
To Next Page
Loading...
