coil box pushing up through coil and top of coil
box. Turn calibration scales so they face the front.
Fasten in place with nut and lock washer on top of
coil box. Wedge coil by driving wedges
below
coil. Wedges should be coated with shellac before
driving in to insure they will not come out.
3.
Place coverplate on switchboard. Make sure
handle travels vertically.
4.
If manual retrieve undervoltage (Fig. 17) is
furnished, mount it on left hand coverplate bolt.
The automatic retrieve undervoltage (Fig. 17A) is
mounted on right hand coverplate bolt.
5.
If breaker unit is to be mounted in back of
switchboard assemble with coverplate. (See Fig. 6)
CROSSBAR
MAIN
CHECKNUT
CONTACT
CLAMP
Note several of the bolts fasten both assemblies.
Make sure breaker unit is level with studs vertical.
6.
If breaker unit and coverplate are to be mount
ed on a pipe mounting bracket as in Fig. 9 proceed
as per 3-4-5 above, the pipe bracket is just a cast
iron switchboard to be supported on pipes.
7.
If breaker unit is to be carried on panel mount
ing brackets back of and off of switchboard, the
assembly will be as in Fig. 7.
8.
If breaker unit is to be carried on a wall or
pipe frame, assembly will be according to Fig. 8.
The bell cranks are supplied for mounting on the
floor with the accelerating device carrying the
spring next to the breaker unit. If bell cranks are to
LEVER
FIG. 3. F-22 Single Throw Breaker Unit
5
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