28
Pump Motors
Level 2
A.O.Smith
■
Most newer models use only one screw to
secure and adjust the switch. When a new
switch is installed, or an existing switch is
being reinstalled, the "U" bracket should be
opened slightly to insure sufficient tension
against the screw. Tighten only when adjust-
ing. If the screw is loosened, it should be
removed and the "U" bracket should again be
opened slightly.
■
On models with two screws, turn the switch
adjustment screw until the correct clearance
is obtained. When finished, tighten the adja-
cent switch screw to secure the switch to the
bracket.
■
Under no circumstances should switch con-
tact leafs be bent or deformed in an attempt
to obtain proper contact clearance.
WHITE PLASTIC BUTTON
GOVERNOR PROJECTION
MOTOR SHAFT
START SWITCH
"U" BRACKET
SWITCH ADJUSTING SCREW
—TIGHTEN ONLY—
.010”
.040”
GOVERNOR WEIGHT
REMOVE AND OPEN "U" BRACKET SLIGHTLY TO INSURE
SUFFICIENT SCREW TENSION WHEN INSTALLING NEW
SWITCH OR AFTER SCREW HAS BEEN LOOSENED.
