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PREVENTIVE MAINTENANCE

PREVENTIVE MAINTENANCE CHECK CHART

CHECKS WITHOUT PARTIAL DISASSEMBLY OF CHASSIS OR CAB

  • 1.

    Air System and Connections

    • a.

      Check for leaks, worn air lines, loose con- nections and capscrews. See AIR SYSTEM.

  • 2.

    Clutch Housing Mounting

    • a.

      Check all capscrews of clutch housing flange for looseness.

3.

Clutch Release Bearing (Not Shown)

9. Gear Shift Lever Housing Assembly

a.

Remove air lines at the gear shift lever transmission.

slave valve and remove housing assembly from

  • b.

    Check tension spring and washer for set and wear.

  • c.

    Check the gear shift lever spade pin and slot for wear.

d. Check bottom end of gear shift lever for wear and check slot of yokes and blocks in shift bar housing for wear at contact points with shift lever.

4.

a.

Remove hand hole and axial clearance

cover and in release

check radial bearing.

b. Check relative position of thrust surface of release bearing with thrust sleeve on push- type clutches.

Clutch Pedal

a.

Pry

upward

Shaft and Bores on shafts to check wear.

b. If excessive movement is found, remove clutch release mechanism and check bush- ings in bores and wear on shafts.

CHECKS WITH DRIVE LINE DROPPED

  • 10.

    Universal Joint Companion Flange or Yoke Nut

    • a.

      Check for tightness. Tighten to recom- mended torque.

  • 11.

    Output Shaft (Not Shown)

    • a.

      Pry upward against output shaft radial clearance in mainshaft rear

to check bearing.

  • 5.

    Lubricant

    • a.

      Change at specified service intervals.

    • b.

      Use only the types and grades as recom- mended. See LUBRICATION.

CHECKS WITH UNIVERSAL JOINT COMPANION FLANGE OR YOKE REMOVED

  • 6.

    Filler and Drain Plugs

    • a.

      Remove filler plugs and check level of lubri- cant at specified intervals. Tighten filler and drain plugs securely.

  • 7.

    Capscrews and Gaskets

    • a.

      Check all capscrews, especially those on PTO covers and rear bearing covers for looseness which would cause oil leakage. See TORQUE RECOMMENDATIONS.

    • b.

      Check PTO opening and rear bearing covers for oil leakage due to faulty gasket.

  • 8.

    Gear Shift Lever

    • a.

      Check for looseness and free play in hous- ing. If lever is loose in housing, proceed with Check No. 9.

NOTE: If necessary, use solvent and shop rag to clean sealing surface of companion flange or yoke. DO NOT USE CROCUS CLOTH, EMERY PAPER OR OTHER ABRASIVE MATERIALS THAT WILL MAR SURFACE FINISH.

  • 12.

    Splines on Output Shaft (Not Shown)

    • a.

      Check for wear from movement and chuck- ing action of the universal joint companion flange or yoke.

  • 13.

    Mainshaft Rear Bearing Cover

    • a.

      Check oil seal for wear.

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