4.Place the chuck key in the cam-lock socket and keep the spindle from rotating.
5.Using a spanner wrench, or hammer-and- punch, loosen the outer spanner lock nut (Figure 57) counterclockwise and remove it.
Outboard
Spindle Nut
Figure 57. Loosening outboard spindle nut.
6.Loosen the inner spanner nut one turn.
Note: You may have to tap on the outboard spindle tube as explained in Step 7 to help unload the spindle and break the spanner nut loose.
7.Place a wooden block over the outboard end of the spindle, hit it soundly with a small sledge or heavy dead blow hammer (Figure 58). Your goal is to slide the spindle forward just enough to introduce spindle end-play that you can feel by hand.
Figure 58. Introducing detectable end-play.
G4003G Gunsmith's Lathe