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Installation and Maintenance Manual
E2K-402-0817 Rev. 2
August 2017
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 Fig. 8a, rotate screwdriver in same direction
noted in Step 1 until switch just rotates. If arrows line up as shown in Fig. 8b, rotate
screwdriver in the opposite direction until switch just rotates.
Figure 8
Fig. 8a
Fig. 8b
4. Re-engage the spring-loaded drive gear by rotating disengage shaft in Fig. 8a.
Spring loaded disengage shaft will rise.
IMPORTANT:
To insure 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.
4.3 Set (LSC) Close Limit Switch
1. Close valve, using handwheel. During handwheel operation note rotation direction
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.
Section 4: Limit Switch Setting Instructions
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