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Introducing The Airbrake: Moore Fans Anti Windmilling Device

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Introducing the AirBrake®

Moore Fans Anti Windmilling Device

 Over 280 lb.ft (37.7 kg.m) of Holding Torque

 Temperature Range of –40 °F to 212 °F (-40 °C to 100 °C)

 Easily Installs on the Fan Shaft

 Low Profile Design

 Maintenance Free

 Available for shaft diameters up to 3 inches (76.2 mm)

 Bushing adapters available for QD bushing sizes SF, E, F, and J

TMC 866 REV G (Jun 13)


AirBrake® Installation Instructions

Prior to installation please confirm that the following parts


are present.

 Qty(1) AirBrake® assembly

 Qty(1) Shackle with screw pin

 Qty(3) Wire rope clips

 Qty(1) Thimble

 Qty(1) 1/2”-13 Eye bolt, washer,


 and nut

 Qty(1) Stainless steel restraining


cable assembly

 Qty(1) Package of Loctite 262

TMC 866 REV G (Jun 13)


CAUTION: Prior to installation confirm the operation direction of the
fan, and ensure this coincides with the direction of free
rotation of the AirBrake.
STEP 1.
NOTE:
Confirm there is at least 1.5 inches (38.1 mm) of available shaft and that there is at
least 3 inches (76.2 mm) of clearance between the bottom of the shaft and the
nearest obstacle.

1.5 “ (38.1mm) Minimum

Figure 1. Minimum shaft extension necessary to install the AirBrake®.


STEP 2.
Install the AirBrake® assembly onto the fan shaft by aligning the modified setscrew
with the keyway of the fan shaft and sliding the assembly onto the shaft until the bot-
tom of the shaft comes into contact with the lip of the AirBrake® assembly as seen in
Figure 2.

Bottom of the shaft coming into


contact with the lip of the Air-
Brake® Assembly

Modified setscrew aligned


with keyway in the fan shaft.

Figure 2. Proper installation of the AirBrake® onto the fan shaft.

TMC 866 REV G (Jun 13)


Table 1. Torque values for the modified set screw.

Keyway Width (in) Torque (ft-lbs) Keyway Width (mm) Torque (kg-m)
3/4 150 20 19.4
5/8 100 18 15.3
1/2 50 16 11.4
3/8 20 14 7.6
1/4 6

STEP 3.
Apply Loctite 262 to the threads of the modified setscrew and tighten using a hex
wrench to the proper torque value (see Table 1).

STEP 4.
Apply Loctite 262 to the threads of the plain setscrew and tighten using a hex wrench
to 45 ft-lbs (6.2 kg-m).

STEP 5.
Insert the thimble portion of the cable assembly onto the shackle. Install the shackle
on the arm of the AirBrake® assembly with the head of the bolt on the upper part of
the shackle as shown in Figure 3. Tighten the nut of the bolt to 20 ft-lbs (2.8 kg-m)
and install the cotter pin in the bolt.
Apply Loctite 262 at these locations

Cable Assembly
Figure 3. Installation of shackle and cable assembly.

STEP 6.
Attach the supplied 1/2”-13 eye bolt to a nearby support using the supplied lock
washer and nut. Insert one end of the thimble through the eye bolt. Secure the free
end of the restraining cable to the attached eyebolt using the supplied wire rope clips
as shown in Figure 4. Ensure that the attachment to the support will not make the
cable more than plus or minus 10° out of level as shown in Figure 5. Remove all of
the slack out of the cable, apply Loctite 262 to the threads of the rope clips and tighten
the clips.
TMC 866 REV G (Jun 13)
Position saddle side of the clip on the live end and the u-bolt
side of clip on the dead end.

Live End

Dead End

Turnback

Allow 4.75 in (120.65mm) of turnback


Figure 4. Proper installation of the supplied wire rope clips.

Secure restraining cable using


wire rope clips and apply Loctite
to the threads.

No more than ± 10° out of level

Figure 6. Restraining cable angle tolerance.

STEP 7.
After the installation of the restraining cable, attempt to rotate the fan in the
backwards direction by hand and ensure that the AirBrake® is working properly and
that there is no slack in the restraining cable. Also, ensure that the restraining cable
will not rub on any sharp edges that might lead to fraying of the cable.
STEP 8.
Install all required guards and confirm there is sufficient clearance for the AirBrake®.

STEP 9.
After all of the necessary guards have been installed, run the fan at full speed and
ensure that the cable is taut and positioned properly, and that everything is working
correctly.

TMC 866 REV G (Jun 13) Moore Fans www.moorefans.com


800 S. Missouri Ave
Marceline, MO 64658
Phone: 660-376-3575
Fax: 660-376-2909

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