Slant/Fin Damper JA user manual

Summary of the content on the page No. 1

INSTRUCTIONS FOR FIELD INSTALLATION
OF JA AND 90 SERIES DAMPERS
TABLE 1 HOLE LOCATION
ORIGINAL The two centermost* louver rows are
LENGTH numbered below counting from left or
OFCOVER right side of end of cover.
PACKING LIST
2 ft. No. 3 and 4
Damper
3 ft. No. 4 and 5
1
Lead screw
3 /2 ft. No. 5 and 6
4 ft. No. 6 and 7 Knob
5 ft. No. 8 and 9
Bushing
6 ft. No. 10 and 11
Nut
7 ft. No. 11 and 12 1
Damper hinge: 2 required for dampers 3 ⁄2 ft. and shorter
8 ft. No. 13 and 14
3 required for dampers

Summary of the content on the page No. 2

BUSHING INSTALLATION 13 Install brass bushing in ⁄32” diameter hole by sliding threaded end of bushing through the cover from front of cover so that the threaded end of the bushing is entirely on the inside of the cover (see illustra- tion of bushing in Figure 5). Fasten bushing with brass bushing nut supplied and tighten. DAMPER HINGE INSTALLATION Slide damper hinges onto damper as illustrated in Figure 3. Two 1 hinges are supplied with damper for covers 3 /2 ft. long and under, and three