Transmission Inspection
Checks Before Transmission Removal
1.
Air System and Connections
Annually replace the filter/regulator element. If excessive contamination is present,
service vehicle air/dryer system.
2.
Lubricant and Filter
Change at specified service intervals. Use only the types and grades as
recommended. See LUBRICANTS. Check lubrication lines and cooling circuit for leaks.
3. Dipstick
Remove dipstick and check level of lubricant at specified intervals. Check oil in neutral
at engine idle.
4. Drain Plugs
Tighten the drain plugs securely. Tighten the main case drain plug to 45-50 Lbf.ft of
torque. Tighten oil pan plugs to 14-20 Lbf.ft of torque.
5. Capscrews and Gaskets
Check all capscrews, especially those on PTO covers and rear bearing covers for
looseness which would cause oil leakage.
Check PTO opening, oil sump/strainer, hose fittings, and rear bearing covers for oil
leakage due to faulty gaskets.
Checks with Drive Line Propped
6. Universal Joint Companion Flange or Yoke Nut
Check for tightness. Tighten to recommended torque.
7. Output Shaft
Pry upward against output shaft to check radial clearance in mainshaft rear bearing.
Checks with Universal Joint Companison Flange or Yoke Removed.
8. Splines on Output Shaft
Check for wear from movement and chucking action of the universal joint companion
flange or yoke.
9. Mainshaft Rear Bearing Cover
Check oil seal for wear.
T300-1_T500-1_T780
Maintenance
350 P/N 12261-683
REVISED: January 2015
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