Check generator voltage at no load (50v de-Terminals Gl & G2) (d) Check temperature of motor generator set and hoist and elevator motors for undue heating. Check temperature of control cabinet (110 deg. F.) (e) Grease all sheaves and pulleys. (f) Check motor generator set bearings, but do not grease. (g) Check brushes on exciter, main generator, hoist and elevator motors. REGULAR OPERATION 6, After hoist and elevator controls and equipment have been checked in accordance with the procedure outlined in paragraph (4) the units are ready for regular operation. Any variation or deviation from normal operating conditions is to be reported immediately to the Engineering Division. MAINTENANCE 7. Electrical and mechanical equipment is to be maintained in accordance with Standard Instructions issued and approved by the Engineering Division. MISCELLANEOUS 8. See the following Square D Company information: (a) Drawing E.S, 2215 showing: Sequence of operation, variable voltage control; preparation for installation; and caution, (b) Service Bulletin 19 AS (c) Service Bulletin 31 AS 1-5