10. Use new tabbed and spring lockwashers under all hex and square head screws.
Make certain that the spring lockwashers are next to the screw heads.

11. Pack bearings 3 and 34 with New York and New Jersey Lubricant Co. No. S-58
Non-Fluid Oil (grease) or equal.

12. Attach inner bearing retainer 8 to commutator-end housing 10 with fiat head
screws 46. Attach brush rigging 11 with two square head screws and their
tabbed lockwashers. Do not install brushes at this time.

13. Start straight and press in roller bearing 3, then hold bearing in place with a
temporary steel outer retainer made l/a inch thick with its outside diameter
2 7/8 inches. A hole 1 1/8 inches in diameter is to be punched in the center and
four holes drilled with No. 15 drill (.180) spaced equidistantly from each other
on the circumference of a circle whose radius is 1-7/32 inches.

14. Fasten this commutator-end housing assembly on the field ring assembly 20
with screws 39 and both spring and tabbed lockwashers.

15. Attach inner bearing retainers 23 and 24 and oil saturated felt washer 36 to
driven-end housing 22 with fiat head screws 37.

16. Start straight and press ball bearing 34 in place. Put fan key 35 in place and press fan 21 to stop shoulder on armature shaft. Press armature 38 into bear-mg in driven-end assembly using a tubular drift against the inner race to prevent damaging the bearing.

17. Slide the armature and driven-end housing assembly into the field ring and commutator-end housing assembly. Drive the armature shaft in the roller bearing with a lead hammer hitting alternately on the shaft and around the edge of the housing. Make certain the pilot diameter of driven-end housing 22 enters the field ring 20. Fasten housing 22 to field ring 20 with screws 33 and both spring and tabbed lockwasher.

18. Remove temporary steel outer retainer and proceed with the rest of the assembly.