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(5) Re-assemble switch bank assembly tension
springs.
(6) Install the two spacers and secure the pivot
post mounting brackets.
(7) Replace the scale, making sure that the
scale mounting holes are properly fitted
around the cast-in guides hidden by the
screws.
(8) Re-calibrate the set points following the
procedure in PART II.
Note: Terminal block option has integral spade
connections on the shortened leadwires.
Remove leadwires from terminal block. When
replacing switches be sure to follow the color
coding wiring diagrams (Figure 2).
Explosion-Proof Types
Single Switch Types
(1) Remove die-cast aluminum cover and
remove two terminal block mounting screws.
(2) Remove two switch mounting screws,
the switch and the insulator.
(3) Remove leadwires from switch and transfer to
new switch.
(4) Install insulator with new switch and mount in
control.
(5) Install terminal block and adjust temperature
setting per PART II.
Dual Switch Types
(1) Remove die-cast aluminum cover,unscrew
and remove terminal block and insulator,
letting terminal block hang.
(2) Unscrew terminal block supports and remove
two switch mounting screws, washers and
wire guard.
(3) Lift out dual switch bank and actuating lever
assembly.
(4) Disconnect six wires at switch terminals.
(5) Assemble new switches and insulators to the
switch bank assembly.
(6) Connect wires at the switch terminals.
(7) Install switch bank assembly, terminal block
supports, insulators, wire guards and
terminal block in controller.
(8) Adjust temperature setting per PART II.
General Layout
Explosion Proof Layout
Figure 3
Figure 4
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