TM 9-2910-226-34 and D, fig. 3-91) and the mating surface on the (4) Refer to figure 3-94. Using a center punch, friction drive spider for evidence of wear or damage. stake spring disk adjusting nut at two points in- (2) Carefully inspect the mating surface of the dicated to prevent nut from loosening. drive hub (fig. 3-92) and spider for evidence of wear (5) Remove friction drive spider and governor or damage. assembly from vise. Figure 3-92. Inspecting friction drive spider wear surface. (3) If damage or wear is evident on any part, replace the complete assembly. Retain the weight and spider assembly for possible repair. c. Assembly. Assemble the governor weight and spider assembly as follows: (1) Refer to figure 3-91. Install retainer (if used), 0.035-inch spring disk spacer (E), inner spring disk (D), 0.035-inch spring disk spacer (C), outer spring disk (B) and nut (A). NOTE The outer spring disk contains an iden- tification hole to distinguish it from the inner disk. (2) Refer to figure 3-90. Position governor weight assembly in vise using 3/8 x 3/4-inch steel bar stock as shown. Tighten hub nut to 80-85 foot-pounds. Remove friction drive spider and governor weight assembly and bar stock from vise. (3) Refer to figure 3-93. Install friction drive spider and governor weight assembly in vise equipped with soft metal jaws as shown. Lubricate the spring disk bearing surface with engine oil and take a running torque reading. Torque reading should be between 48 and 72 inch-pounds. If the torque reading falls below these limits, install a thinner spring disk spacer (E, fig. 3-91). If the torque reading exceeds these limits, replace the governor weight and spider assembly. Figure 3-93. Checking friction drive spider slippage. Figure 3-94. Staking spring disk adjusting nut. 3-59