STEP 20 Cont: When the slack is out of the cable, tighten the set screw on the air valve.
Push the thermostat shaft from inside the stove until stiff
resistance is felt from the friction spring, slip the thermostat
handle stub on the end of the shaft and push the handle stub
tight against the outside of the right stove end. Tighten the
set screw in the handle stub against the flat side of the shaft.
Cement the mating surface of the thermostat access cup (Fig. C-11).
Place the ¼” stainless steel flat washer on the thermostat shaft and slide it
Fig. C-11
Thermostat
Access Cup
against the limiter bar. Insert the thermostat access cup over the
thermostat shaft; rotate the access cup to its proper position, aligning the
drillings in the access cup with the tapped holes in the right air/wear plate.
Secure with 2 each, hex head cap screws (¼-20 x ½”).
STEP 21:
Adjust the primary air system. Loosen the set screw on the primary air
valve. Holding the cable in one hand, move the thermostat handle through
its full range of movement insuring that all the slack is out of the cable and
that the cable is responding to the movement of the thermostat handle
without catching or binding. With the thermostat handle in the closed
position (towards the rear of the stove) and the cable set screw loose, the
primary air valve will fall freely to the closed position. Gently pull the
cable until the primary air vale just begins to open. Pull the air valve
closed by pulling the set screw in the centre of the air valve until the valve
seats in the air frame. Tighten the set screw. Move the thermostat handle
to the full open position (towards the front of the stove). Check the air
valve to be sure it is in the open position.
STEP 22:
Sleeve and cut the excess from the primary air system cable. Thread the
copper sleeve over the end of the cable. Loop the free end of the cable
back through the copper sleeve and pull the sleeve and loop up within 1”
of the air valve set screw as shown in Fig.A-6. Insure that the sleeve and
the cable loop will not interfere with the closing of the primary air valve.
Crimp the copper sleeve with pliers and cut off the excess cable.
Fig. A-6
Adjusting and Sleeving the Primary Air System Cable
