NOTE: Terminal block 120 Includes push-in locking terminals for internal wiring. Leads inserted in the front-most terminals may only be released by inserting & small screwdriver or similar in the slots provided in the front of the terminal block. Rear-most leads may release with a sharp pull. If leads cannot be released, or are not gripped on insertion, item 120 must be replaced. 2. Open the sliding tabletops and remove glass dishes and lids 101 and holders 103. 3. Remove the sliding tabletops a