6
following steps to install the fan motor and fan blade
assembly.
1. Verify the fan pitch is set so the “0” on the fan
blade lines up with the “0” on the fan hub.
2. Remove motor support frame from top of tower.
3. Set the motor frame up off the ground (use saw
horses or some other means of support).
4. Place the motor with the shaft pointing down
onto the motor frame and bolt the motor to the
frame using the bolts provided.
5. Attach the fan blade to the motor shaft.
6. Remount the entire fan motor and fan assembly
back on top of the cooling tower with the fan
located down inside the tower.
Fan Motor and Blade Assembly (FT8260 &
FT8270)
In order to prevent possible shipping damage, the
fan motor, fan blade, and sprinkler head assembly
ship unmounted. Use the following steps to install
the fan motor, fan blade, and sprinkler head
assembly.
1. Remove motor support frame from top of tower.
2. Place a piece of plywood on top of the fill in the
tower to prevent damage during installation.
3. Position sprinkler arms with studs in end of pipe
positioned at 12 o'clock when viewed from
outside of tower facing center.
4. With the sprinkler arm correctly positioned,
tighten the retaining bolt on the sprinkler head
until snug.
Note: Do not over tighten, as this will crack the
sprinkler arm.
5. Install the “TEE” shaped tension wire support
post on the top of the sprinkler head.
6. Loosen the turnbuckles to open them up all the
way.
7. Hang the turnbuckle from the “TEE” shaped
tension wire support post on top of the sprinkler
head.
8. In the other end of the turnbuckle, tightly wrap
one end of the wire; wrap the opposite end of
the wire around stud and under flat washer.
Tighten nut at the end of the sprinkler pipe.
9. Tighten the turnbuckle until wire is tight and
sprinkler pipe is level.
10. Place the fan motor on the ground with shaft up
and fasten the motor frame with the provided
½" bolts.
11. Align key way and slide the fan hub onto the fan
motor shaft with “U” bolts facing downward.
Tighten fan hub onto motor shaft.
12. Install fan blades in their numerical order with
corresponding number on fan hub making sure
the “0” on the fan blade lines up with the “0” on
the fan hub.
13. Make sure ALL blades are set to the same pitch.
14. Tightly secure the fan blades to the fan hub by
progressively tightening the U-Bolt nuts. If the
U-Bolt does not allow for a tight joint, replace
and repeat the process until properly secured.
15. Recheck the pitch of each blade to ensure it did
not change while tightening the nuts.
16. Remount the entire fan motor assembly on top
of the tower with fan down inside the tower and
bolt it back down.
17. Reinstall the fan guards.
Fan Motor, Fan Blade, and Sprinkler Head
Assembly (FT8280)
In order to prevent possible shipping damage, the
fan motor, fan blade, and sprinkler head assembly
ship uninstalled. Use the following steps for
installing the fan blade, fan motor, and sprinkler
head assembly.
1. Remove motor support frame from top of tower.
