CONTINUED INSTALLATION INSTRUCTIONS for

Manual Quadrant Operator

Non-jackshafted Dampers
Control damper should be mounted in the duct and the shaft
extension mounted onto the correct blade of the damper before
continuing with these instructions.
After Extended Shaft is Installed
1. Assemble Manual Quadrant to extension bracket
assembly (screws provided).
2. With damper either fully open or closed, lock manual
quadrant to extended control shaft so manual quadrant
can move damper between open and closed. Note:
Tighten down bolt on manual quadrant to 250 in. lb. of
torque. Apply "OPEN" and "CLOSED" labels if damper
movement is opposite to that engraved in the manual
quadrant.
3. Set damper to desired position and tighten wing nut on
manual quadrant to hold damper in place.
Jackshafted Dampers
1. The jackshaft is, either, 1⁄2 in. diameter or 1 in.
diameter depending upon the size of the damper.
The manual quadrant kit for the 1⁄2 in. diameter
jackshaft is Part #811518 and the manual quadrant
kit for a 1 in. diameter jackshaft is Part #813938.
2. With damper either fully open or closed, lock
manual quadrant to jackshaft so manual quadrant
can move damper between open and closed. Note:
Tighten down bolt on manual quadrant to 250 in.
lb. of torque. Apply "OPEN" and "CLOSED" labels
if damper movement is opposite to that engraved
in the manual quadrant.
3. Set damper to desired position and tighten wing
nut on manual quadrant to hold damper in place.
No. Qty. Description Part Number
1 1 Extension Pin Kit Assembly See Page 1
2 2 #10 x 1⁄2 in. Self Drilling SMS 415555
3 1 1⁄2 in. Dia. Manual Quadrant 455648
4 1 OPEN & CLOSED Labels 452690
5 1 Washer (included with Part #455648)
Jackshafted Damper

Manual Quadrant & Extension Pin Kit Part Numbers

* The 1⁄2 in. manual quadrant kit (Part #811518)
does not include Item #1 above. Kit part #815607
includes both the 1⁄2 in. manual quadrant kit and the
1⁄2 in. extension pin kit.
Extension Pin Kit and Manual Quadrant FS
Rev. 4 Aug 2008
No. Qty. Description Part No.
1 1 1 in. Quadrant Bracket 649366
2 1 Quadrant Lever Arm Assembly 814406
3 1 3/8-16 Spinlock Nut ZP 415457
4 1 3/8-16 x 2.50 Carriage Bolt 415485
5 1 3/8-16 x 1 Short Shank Crg. Bolt 415820
6 1 3/8-16 Wing Nut 415821
7 4 1/4-20 1/2 Self Threading Screw 415264
8 1 Label - Open/Close 452690
9 1 5/8 in. Flat 415381
1
3
2
4
CLOSED
OPEN
4
5
6
8
3
4
7
1
5
2
CLOSEOPEN
9