REPAIR INSTRUCTIONS 59. Install the rear case dowel bolts and nuts and tighten them to the specified torque.
SETTING REAR COUNTERSHAFT BEARING PRELOAD
60. Install the inner and outer (case-to-case) capscrews to secure the rear case to the main case. There are two inner capscrews located just inside the rear compound cover opening. Tighten the inner and outer case-to-case capscrews to the specified torque.
61. Install the compound countershaft bearing covers. Determine the shim pack thickness for each rear countershaft bearing preload adjustment, using the procedure described in the example that follows.
555
62. Working at the rear of the countershafts, temporarily install the rear countershaft bearing covers, leaving the capscrews loose. Do not install shim packs or O-rings at this time. Measure the space between the bearing cover and transmission case, using two feeler gauge sets. Take at least two measurements and average the results.
A more accurate measurement can be obtained if the transmission is in a vertical position and each bearing cover is hand-held firmly against the countershaft rear bearings. Figure 555 — Tightening Outer Case-to-Case Capscrews
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556
Figure 556 — Tightening Inner Case-to-Case Capscrews
Figure 557 — Measuring with Tapered Feeler Gauges
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