back plates are mounted directly over them. This new operation eliminates the need of visual adjustment.
Figure 10 (Kaizen 3) shows the design change of door plate mounting mechanism. Earlier, door plates were fixed in the groove of door plate support frame. Due to the open groove, the plated setting was disturbed during production requiring it to be readjusted during setup. In the proposed Kaizen 3, the continuous groove is replaced by a fixed hole joint and thus fixing the door plates firmly in the position. Figure 11 (Kaizen 4) shows the design change of receiver plate. Earlier, the receiver plate had a push fit feature for fitting receivers in it. It took a long time to fix the receiver since each receiver was hammered in a push fit joint. Hammering was causing wear and tear of the plate requiring insertion of packing to fit receiver tightly with plates. In the proposed Kaizen 4, new receiver plate was designed with enough clearance between receiver pin and receiver plate hole to fit the receiver easily and then locking the receivers using spring, cam, and lever mechanism. New receivers are designed with a grooved pin, which gets locked