Weekly Post-Trip Inspection and Maintenance Procedures

c2 dm 14.03.001
  1. Inspect the batteries and battery cables.

      Note: Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. To prevent possible personal injury, always wash your hands after handling battery parts and related accessories.

    1. Check the battery cables for chafing and proper routing. Be sure the battery hold-down is secure. If it is loose, tighten the hold-down bolts; if it is damaged, replace it. Replace the battery cable if damaged.
    2. If the battery is equipped with a built-in hydrometer, examine the hydrometer. If a green dot shows in the sight glass, the battery is sufficiently charged.
      If the sight glass is dark, the charge is low and the battery must be recharged.
      If the sight glass is clear, the battery has a low level of electrolyte and must be replaced.
  2. Inspect the outboard side of all wheel hubs and the hub oil seal area on the inboard side of each wheel for signs of oil leakage.
    If any oil is found on wheel and tire or brake components, remove the vehicle from service until the leak has been fixed.
    If needed, fill the hubs to the level indicated on the hub cap.

    3. Important:  Before removing the fill plug, always clean the hub cap and plug.

  3. Inspect the steering components.
    1. Inspect tie rods, steering arms, and the drag link for signs of looseness (i.e., shiny spots or rust tracks). See Fig..

      1. Steering Gear Mounting Bolt

      2. Pitman Arm Pinch Bolt Nut

      3. Drag Link Nut

      Fig. 1, Steering Gear Fasteners

    2. Check the steering gear mounting bolts and pitman arm nut, if equipped, for signs of looseness.
    3. Check the drag link nuts for missing cotter pins.
    4. Inspect the steering intermediate shaft and end yokes for excessive looseness or other damage.
  4. Check the condition of the drive belts.
    Check the fan belt(s), alternator belt, and refrigerant compressor belt for signs of glazing, wear (frayed edges), damage (breaks or cracks), or oil contamination. If a belt is glazed, worn, damaged, or oil soaked, replace it.
  5. After resetting the air intake restriction indicator during the daily pretrip inspection, check the indicator again with the engine off.
    1. Check an indicator with graduations to see if air restriction exceeds 25 inH2 O.
      Check a go/no-go indicator without graduations to see if the colored bar shows through the clear window.
    2. If air restriction exceeds the maximum allowable value, operate the vehicle for one more day, making sure not to run the engine over rated rpm. Refer to the engine operation manual for more information on rated rpm for your engine.
    3. If air restriction exceeds the maximum value again, replace the air cleaner. For instructions, refer to Group 09 of the Saf-T-Liner C2 School Bus Maintenance Manual .
Note:
Parent topic: Pre- and Post-Trip Inspections and Maintenance
Document Number: 0000107634
Manual Publication Date: 2024-05-07
Topic Publication Date: 2024-05-06