Turning lever 8 (see fig. 19) control of the air damper 2 to failure in a clockwise direction, the air damper must be completely closed under the action of spring 1. If the damper is not closed, eliminate the cause of jamming.
With the air damper completely closed, manually press the rod 4 of the starting device until it stops. In this case, the air damper 2 should open to (2,2±0,2) mm (starting clearance B). If necessary, adjust this gap with the adjusting screw 6.
When the air damper is completely closed, the throttle valve 9 of the first chamber should be ajar by 0.7-0.8 mm (starting gap C). If necessary, adjust this gap with the adjusting screw 10.