Class 99 & 99K

To Remove Bulb

Grasp light socket so that thumb extends over switch V. Press shade with thumb at U. to release shade from two catches, and slide it halfway out of shade holder W. Press bulb into socket and at same time, turn bulb over from machine as far as it will go to unlock pin X (see Figs. 3 and 4). Withdraw the bulb.

To Insert New Bulb

Press bulb into socket and turn it over toward machine until pin X enters notch in socket (see Fig. 3). Return shade to its normal position as shown in Fig. 1.

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Singer CLASS 99 instruction manual To Remove Bulb, To Insert New Bulb