3. See that all connections to the machine and the control appara- tus correspond with the wiring diagrams. 4. Make sure that the bearings are -roperly lubricated. Grease lubricated, ball bearing machines are shipped with the proper amount of high grade grease in the bearings. Refer to "Maintenance" for further information on lubrication of bearings. 5, Check the brushes to make sure they ride freely in the brushholders, The brushes were correctly positioned and springs adjusted to the right pressure at the factory. If any displace- ment has occurred in transit or installation, refer to the section on "4aintenance", tNITIAL RUN Run the machine without load for about one hour. localized heating in bearings and windings. of rotation. Check for unusual Check for proper direction Observe action at the commutator to see that the brushes are riding smoothly so that there is no brush chatter. When these and all previously enumerated precautions are taken, the machine is ready for operation. ERECTION OF RCTATION The machine has been connected for the correct rotation at the factory. To obtain opposite rotation, the armature or main field leads must be reversed, All leads are tagged as shown on the connection iiagram and connections for opposite direction are indicated. HEATING The rated temperature rise of the machine is stamped on the nameplate. The actual operating temperature of the machine will be the temperature rise of the machine plus the temperature of the surrounding 3-45