Slide shaft of generator drive shaft

TM 9- 2920- 224- 34&P

ASSEMBLY OF THE GENERATOR - CONTINUED

0010 00

g. Slide shaft of generator drive shaft (2) into armature bore from drive end until tapered splines engage at

commutator--end of armature (7).

h. Temporarily install recessed washer (8), and secure with hexagon plain nut (9) tightened onto drive shaft (2)

just enough to hold tapered splines engaged.

Using a torque wrench with standard spline socket, watch index marks (10) on edge of disks as torque is

gradually applied. The double (bracketing) marks (11) will move with respect to single mark (12) when

slippage of damper mechanism occurs. Slippage must occur at a torque of 18--22 Ib--ft (24.4 to 29.8 NSm).

If slippage does not occur within allowable torque range, remove generator drive shaft (2) from armature (7).

Loosen and/or tighten all six hexagon self--locking nuts (6). If slippage occurred at too high a value, all nuts

must be loosened and torqued to a lesser value. If slippage occurred at too low a value, torque all nuts to a

higher value. In either case, steps g, h, and i must be repeated to measure slip torque, after torque setting of

nuts (6) is changed, until slippage occurs within correct range.

0010 00- 15