Specifications

Figure-8 MK-3300 Typical Mounting.

MK-3800 Series Typical Mounting

Accessories Required for Mounting of Actuator Per

Figure 9 through 11

1— AM-532 bolt-on frame bracket kit.

Note: Bracket kit includes the frame bracket, leaf connector,

and necessary screws or bolts and nuts.

To install the actuator proceed as follows:

1. Prepare the damper by drilling necessary holes, etc. See

Figures 11 and 15 for bolt-on bracket.

2. Attach bracket and leaf connector to damper.

3. Attach actuator mounting plate to damper bracket.

4. Install pivot stud to actuator mounting plate.

5. Install actuator to pivot stud and connect clevis to blade

connector.

Note: Adjust clevis as needed to align clevis and leaf

connector.

Figure-9 MK-3800 Series Typical Mounting, Normally Open.

Figure-10 MK-3800 Series Typical Mounting,

Normally Closed.

Preparing Damper for Frame Mounting of Actuator

Refer to Figures 11 and 15 for required holes, etc. for AM-532.

Figure-11 Typical Bolt-On Bracket Mounting.

Accessories Required for Mounting of Actuator Per

Figure 12

1 — AM-530 crank arm.

To install proceed as follows:

1. Attach mounting plate to duct or wall with damper shaft

protruding through locator hole in mounting plate. If this is

not possible, additional shaft extensions may be used to

allow locating the actuator farther from the damper shaft.

Each extension provides 4 inches of extension to the

actuator shaft and may be used in multiples.

2. Install the pivot stud to the mounting plate.

3. Install actuator on pivot stud.

4. Install crank arm on damper shaft at approximately 45

angle from vertical toward actuator.