HUB ASSEMBLY REPLACEMENT (Sheet 5 of 7)
Using hammer and drift punch, install new (if
required) bolts (D) into hole (E) of hub (B).
Grease (Item 36, Appendix D) new preformed packing (F). Install packing into groove on arm
Install seal assembly (H) with new gasket (J) onto arm (G) lower spindle.
Pack both inner (K) and outer bearings (L) with grease (Item 36, Appendix D)
Position inner bearing (K) on arm (G) lower spindle
Install hub (B) onto arm spindle (G), making sure seal assembly (H) alines to five pins on interface
of arm assembly (G).
Install eight screws (M) and new lockwashers (N) to secure seal assembly (H) to hub (B).
Using 9/16 inch socket, tighten screws (M) alternately.
Install outer bearing (L) onto spindle. Push hub (B) onto spindle and bearing until bearing seats.
Install round nut (P) with dowel. Using spanner wrench (Item 27, Chapter 3, Section 1) with 3/4
inch drive ratchet, tighten nut (P) while rotating hub one way, then opposite.
Go on to Sheet 6