Fisher 1061 Instruction Manual page 17

Instruction Manual
D100324X012
Operating the Locking Mechanism
Key numbers are located in figures 5 and 6.
To Unlock the Actuator (Size 30, 40, 60, & 68)
1. Remove the padlock. Loosen the jam nut (key 128, figure 5), and unscrew the threaded bolt until it is stopped by
the groove pin (key 127) in the threaded bolt.
Note
For normal operation of the actuator, the threaded bolt must be unscrewed far enough so that the actuator lever will not contact
the bolt in normal actuator operation.
2. If you are going to leave the bolt threaded into the housing, lock it with the jam nut (key 128) so that it cannot be
screwed into the housing and interfere with normal actuator operation.
To Unlock the Actuator (Size 80 & 100)
1. Remove the padlock. Remove the safety lockout (key 130, figure 6) and unscrew the lockscrew until it is free of the
lever path.
Note
For normal operation of the actuator, the threaded bolt must be unscrewed far enough so that the actuator lever will not contact
the bolt in normal actuator operation. A good rule of thumb is to unscrew the lockscrew until it is approximately even with the
outward edge of the safety lockout when installed.
2. If you are going to leave the bolt threaded into the housing, reinstall the safety lockout and padlock.
To Lock the Actuator (Size 30, 40, 60, & 68)
1. Be sure the actuator piston rod is retracted fully. This will be the locked position of the valve. For a
push‐down‐to‐close valve and actuator, the valve will be fully open when locked. For a push‐down‐to‐open valve
and actuator, the valve will be fully closed when locked.
2. Be sure the jam nut (key 128, figure 5) is loose. Then, screw the threaded bolt into the housing until it contacts the
head on the cap screw of the actuator lever.
3. Rotate the threaded bolt until one of the holes in the lower locking disk (which is welded to the bolt) is in line with
the hole in the mounting plate (key 123). Tighten the jam nut against the mounting plate.
4. Lock the plate and disk together with a padlock (not furnished).
To Lock the Actuator (Size 80 & 100)
1. Be sure the actuator piston rod is retracted fully. This will be the locked position of the valve. For a
push‐down‐to‐close valve and actuator, the valve will be fully open when locked. For a push‐down‐to‐open valve
and actuator, the valve will be fully closed when locked.
2. Screw the lockscrew (key 131) into the housing until it contacts the actuator lever (key 28, figure 9).
3. Screw the safety lockout (key 130) onto the mounting plate (key 123) until finger‐tight. Then back it off until the
hole in the arm of the safety lockout aligns with the hole in the mounting plate for the padlock.
4. Insert and lock the padlock (not furnished) to connect the mounting plate (key 123) with the arm of the safety
lockout (key 130). The larger 1061 sizes may require a padlock with a longer shackle.
1061 F & G Actuator
June 2017
17