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Makes 🢒 GMC_Truck 🢒 2004 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Preface 🢒 Cautions and Notices 🢒 Maintenance Schedule

Maintenance Schedule Gasoline

The services shown in this schedule up to 166 000 km (100,000 mi) should be performed after 166 000 km (100,000 mi) at the same intervals. The services shown after 166 000 km (100,000 mi) should be performed at those intervals.

Refer to Explanation of Scheduled Services for further explanation of the maintenance services.

160 km (100 miles)

Perform the wheel stud nut service. (34)

1,600 km (1,000 miles)

  1. Perform the wheel stud nut service. (34)
  2. Perform rear axle air shift motor service. (10)

12,000 km (7,500 miles)

  1. Check Oil Life System. If engine oil and filter are changed, reset system. Refer to GM Oil Life System Resetting . (3)(9)

    2. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)

  2. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  3. Perform wheels and tires service. (14)
  4. Perform parking brake service (or every 6 months, whichever occurs first). (8)

24,000 km (15,000 miles)

  1. Check Oil Life System. If engine oil and filter are changed, reset the system. Refer to GM Oil Life System Resetting . (3)(9)
  2. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  3. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  4. Perform steering system service. (12)
  5. Perform front and rear suspension service. (13)
  6. Perform spring to axle U-bolts and shackle bolts service. (15)
  7. Perform exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
  8. Perform wheels and tires service. (14)
  9. Perform hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
  10. Perform parking brake service (or every 6 months, whichever occurs first). (8)
  11. Perform engine drive belts service (or every 12 months, whichever occurs first). (17)
  12. Perform thermostatically controlled engine cooling fan service. (4)(18)
  13. Perform shields and under hood insulation service. (4)(5)(19)

32,000 km (20,000 miles)

Perform air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).

36,000 km (22,500 miles)

  1. Check oil life system. If engine oil and filter are changed, reset system. Refer to GM Oil Life System Resetting . (3)(9)
  2. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  3. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  4. Inspect door hinge pins and bushings and replace as necessary.
  5. Perform cooling system service.
    6. 5.1. Clean the cooling system filler cap with clean water.
    5.2. Clean the core.
    5.3. Pressure test the cap and the system for proper pressure capability and inspect the condition of cooling and heater hoses and clamps.
    5.4. Replace hoses if cracked, swollen, or damaged.
  6. Perform wheel bearing (grease type) service (or every 24 months, whichever occurs first, and whenever hubs are removed). (20)(34)
  7. Perform wheels and tires service. (14)
  8. Perform parking brake service (or every 6 months, whichever occurs first). (8)
  9. Perform air intake system service (or every 24 months, whichever occurs first). (4)(5)(21)
  10. Perform evaporative control system service (if equipped) (or every 24 months, whichever occurs first). (3)(22)
  11. Perform rear axle air shift motor service. (10)
  12. Perform air brake service (or every 6 months, whichever occurs first). (30)
  13. Perform air brake automatic slack adjuster service (or every 500 hours, whichever occurs first). (31)
  14. Check air brake relay valve operation and check for leaks (or every month, or every 300 hours, whichever occurs first).
  15. Clean air brake application valve (or every 3 months, or every 300 hours, whichever occurs first).

    16. Lubricate the linkage.

  16. Perform air brake chamber service (or every 2 months, whichever occurs first). (32)
  17. Perform trailer brake hand control valve service (or every 3 months, or every 900 hours, whichever occurs first). (33)

48,000 km (30,000 miles)

  1. Check oil life system. If engine oil and filter are changed, reset system. Refer to GM Oil Life System Resetting . (3)(9)
  2. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  3. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  4. Replace fuel filter(s) (or every 12 months, whichever occurs first). (3)
  5. Perform steering system. (12)
  6. Perform front and rear suspension service. (13)
  7. Perform spring to axle U-bolts and shackle bolts service. (15)
  8. Perform exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
  9. Perform wheels and tires service. (14)
  10. Perform hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
  11. Perform parking brake service (or every 6 months, whichever occurs first). (8)
  12. Perform engine drive belts service (or every 12 months, whichever occurs first). (17)
  13. Perform thermostatically controlled engine cooling fan service. (4)(18)
  14. Perform shields and under hood insulation service. (4)(5)(19)

60,000 km (37,500 miles)

  1. Check oil life system. If engine oil and filter are changed, reset system. Refer to GM Oil Life System Resetting . (3)(9)
  2. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  3. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  4. Perform wheels and tires service. (14)
  5. Perform parking brake service (or every 6 months, whichever occurs first). (8)

64,000 km (40,000 miles)

Perform air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).

72,000 km (45,000 miles)

  1. Check oil life system. If engine oil and filter are changed, reset system. Refer to GM Oil Life System Resetting . (3)(9)
  2. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  3. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  4. Perform cooling system service:
    5. 4.1. Clean the cooling system filler cap with clean water.
    4.2. Clean the core
    4.3. Pressure test the cap and the system for proper pressure capability and inspect condition of cooling and heater hoses and clamps.
    4.4. Replace hoses if cracked, swollen or damaged.
  5. Perform wheel bearing (grease type) service (or every 24 months, whichever occurs first, and whenever hubs are removed). (20)(34)
  6. Inspect door hinge pins and bushings and replace as necessary.
  7. Perform steering system service. (12)
  8. Perform front and rear suspension service. (13)
  9. Perform spring to axle U-bolts and shackle bolts service. (15)
  10. Perform exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
  11. Perform wheels and tires service. (14)
  12. Perform hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
  13. Perform parking brake service (or every 6 months, whichever occurs first). (8)
  14. Perform engine drive belts service (or every 12 months, whichever occurs first). (17)
  15. Perform thermostatically controlled engine cooling fan service. (4)(18)
  16. Perform shields and under hood insulation service. (4)(5)(19)
  17. Perform rear axle air shift motor service. (10)
  18. Perform air intake system service (or every 24 months, whichever occurs first). (4)(5)(21)
  19. Perform evaporative control system service (if equipped) (or every 24 months, whichever occurs first). (3)(22)
  20. Perform air brake service (or every 6 months, whichever occurs first). (30)
  21. Perform air brake automatic slack adjuster service (or every 500 hours, whichever occurs first). (31)
  22. Check air brake relay valve operation and check for leaks (or every month, or every 300 hours, whichever occurs first).
  23. Clean air brake application valve (or every 3 months, or every 300 hours, whichever occurs first).

    24. Lubricate the linkage.

  24. Perform air brake chamber service (or every 2 months, whichever occurs first).
  25. Perform trailer brake hand control valve service (or every 3 months, or every 900 hours, whichever occurs first). (33)

80,000 km (50,000 miles)

Inspect air compressor discharge port (or every 6 months or every 1,800 hours, whichever occurs first).

84,000 km (52,500 miles)

  1. Check oil life system. If engine oil and filter are changed, reset system. Refer to GM Oil Life System Resetting . (3)(9)
  2. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  3. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  4. Perform wheels and tires service. (14)
  5. Perform parking brake service (or every 6 months, whichever occurs first). (8)

96,000 km (60,000 miles)

  1. Check oil life system. If engine oil and filter are changed, reset system. Refer to GM Oil Life System Resetting . (3)(9)
  2. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  3. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  4. Replace fuel filter(s) (or every 12 months, whichever occurs first). (3)
  5. Perform steering system service. (12)
  6. Perform front and rear suspension service. (13)
  7. Perform spring to axle U-bolts and shackle bolts service. (15)
  8. Perform exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
  9. Perform wheels and tires service. (14)
  10. Perform hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
  11. Perform parking brake service (or every 6 months, whichever occurs first). (8)
  12. Perform engine drive belts service (or every 12 months, whichever occurs first). (17)
  13. Perform thermostatically controlled engine cooling fan service. (4)(18)
  14. Perform shields and under hood insulation service. (4)(5)(19)
  15. Perform air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).

108,000 km (67,500 miles)

  1. Check oil life system. If engine oil and filter are changed, reset system. Refer to GM Oil Life System Resetting . (3)(9)
  2. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  3. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  4. Perform cooling system service.
    5. 4.1. Clean the cooling system filler cap with clean water.
    4.2. Clean the core.
    4.3. Pressure test the cap and the system for proper pressure capability and inspect condition of cooling and heater hoses and clamps.
    4.4. Replace hoses if cracked, swollen or damaged.
  5. Perform wheel bearing (grease type) service (or every 24 months, whichever occurs first, and whenever hubs are removed). (20)(34)
  6. Perform wheels and tires service. (14)
  7. Perform parking brake service (or every 6 months, whichever occurs first). (8)
  8. Perform rear axle air shift motor service. (10)
  9. Perform air intake system service (or every 24 months, whichever occurs first). (4)(5)(21)
  10. Perform evaporative control system service (if equipped) (or every 24 months, whichever occurs first). (3)(22)
  11. Perform air brake service (or every 6 months, whichever occurs first). (30)
  12. Perform air brake automatic slack adjuster service (or every 500 hours, whichever occurs first). (31)
  13. Check air brake relay valve operation and check for leaks (or every month, or every 300 hours, whichever occurs first).
  14. Clean air brake application valve (or every 3 months, or every 300 hours, whichever occurs first).

    15. Lubricate the linkage.

  15. Perform air brake chamber service (or every 2 months, whichever occurs first). (32)
  16. Perform trailer brake hand control valve service (or every 3 months, or every 900 hours, whichever occurs first). (33)

120,000 km (75,000 miles)

  1. Check oil life system. If engine oil and filter are changed, reset system. Refer to GM Oil Life System Resetting . (3)(9)
  2. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  3. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  4. Perform steering system service. (12)
  5. Perform front and rear suspension service. (13)
  6. Perform spring to axle U-bolts and shackle bolts service. (15)
  7. Perform exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
  8. Perform wheels and tires service. (14)
  9. Perform fuel tank, fuel cap and fuel lines service (or every 72 months, whichever occurs first). (3)(24)
  10. Perform EGR system inspection (or every 72 months, whichever occurs first). (3)(25)
  11. Perform hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
  12. Perform parking brake service (or every 6 months, whichever occurs first). (8)
  13. Perform engine drive belts service (or every 12 months, whichever occurs first). (17)
  14. Perform thermostatically controlled engine cooling fan service. (4)(18)
  15. Perform shields and under hood insulation service. (4)(5)(19)

128,000 km (80,000 miles)

Perform air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).

132,000 km (82,500 miles)

  1. Check oil life system. If engine oil and filter are changed, reset system. Refer to GM Oil Life System Resetting . (3)(9)
  2. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  3. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  4. Perform wheels and tires service. (14)
  5. Perform wheel bearings service - - Eaton Axle (oil-filled) (or every 24 months, whichever occurs first). (20)(34)
  6. Perform parking brake service (or every 6 months, whichever occurs first). (8)

144,000 km (90,000 miles)

  1. Check oil life system. If engine oil and filter are changed, reset system. Refer to GM Oil Life System Resetting . (3)(9)
  2. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  3. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  4. Perform cooling system service.
    5. 4.1. Clean the cooling system filler cap with clean water.
    4.2. Clean the core
    4.3. Pressure test the cap and the system for proper pressure capability and inspect the condition of cooling and heater hoses and clamps.
    4.4. Replace hoses if cracked, swollen or damaged.
  5. Perform wheel bearing (grease type) service (or every 24 months, whichever occurs first, and whenever hubs are removed). (20)(34)
  6. Replace fuel filter(s) (or every 12 months, whichever occurs first). (3)
  7. Perform steering system service. (12)
  8. Perform front and rear suspension service. (13)
  9. Perform spring to axle U-bolts and shackle bolts service. (15)
  10. Perform exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
  11. Inspect door hinge pins and bushings and replace as necessary.
  12. Perform wheels and tires service. (14)
  13. Perform hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
  14. Perform parking brake service (or every 6 months, whichever occurs first). (8)
  15. Perform engine drive belts service (or every 12 months, whichever occurs first). (17)
  16. Perform thermostatically controlled engine cooling fan service. (4)(18)
  17. Perform shields and under hood insulation service. (4)(5)(19)
  18. Perform rear axle air shift motor service. (10)
  19. Perform air intake system service (or every 24 months, whichever occurs first). (4)(5)(21)
  20. Perform evaporative control system service (if equipped) (or every 24 months, whichever occurs first). (3)(22)
  21. Perform air brake service (or every 6 months, whichever occurs first). (30)
  22. Perform air brake automatic slack adjuster service (or every 500 hours, whichever occurs first). (31)
  23. Check air brake relay valve operation and check for leaks (or every month, or every 300 hours, whichever occurs first).
  24. Clean air brake application valve (or every 3 months, or every 300 hours, whichever occurs first).

    25. Lubricate the linkage.

  25. Perform air brake chamber service (or every 2 months, whichever occurs first). (32)
  26. Perform trailer brake hand control valve service (or every 3 months, or every 900 hours, whichever occurs first). (33)

156,000 km (97,500 miles)

  1. Check oil life system. If engine oil and filter are changed, reset system. Refer to GM Oil Life System Resetting . (3)(9)
  2. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  3. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  4. Perform wheels and tires service. (14)
  5. Perform parking brake service (or every 6 months, whichever occurs first). (8)

160,000 km (100,000 miles)

  1. Perform spark plug service. (3)(23)
  2. Change power steering fluid (or every 36 months, whichever occurs first). (12)
  3. Replace power steering reservoir filter element (or every 24 months, whichever occurs first).
  4. Perform front axle service. (29)
  5. Perform rear axle service - - Eaton, Rockwell, Spicer Axles (or every 12 months, whichever occurs firs). (28)
  6. Perform exhaust brake service (if equipped). Check for excessive spindle free play and smooth operation. Lubricate ball joint cap.
  7. Perform air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).
  8. Inspect air compressor discharge port (or every 6 months or every 1,800 hours, whichever occurs first).
  9. Perform manual transmission (ZF 6-speed only) fluid replacement (or every 48 months, whichever occurs first).

192,000 km (120,000 miles)

Replace the engine drive belts.

240,000 km (150,000 miles)

Perform Cooling system service (or every 60 months since last service, whichever occurs first). (3)(27)

320,000 km (200,000 miles)

Remove, disassemble, clean and inspect the air brake trailer supply valve (or every 2 years, or every 7,200 hours, whichever occurs first).

400,000 km (250,000 miles)

  1. Perform wheel bearings service - - Eaton Axle (oil-filled) (or every 36 months, whichever occurs first). (20)(34)
  2. Perform rear axle service - - Eaton, Rockwell, Spicer Axles (or every 36 months, whichever occurs first). (28)
  3. Perform manual transmission (except ZF 6-speed) fluid replacement (or every 60 months, whichever occurs first).

480,000 km (300,000 miles)

Remove, disassemble, clean and inspect the air brake air dryer (or every 3 years, or 10,800 hours, whichever occurs first). Replace dessicant on Bendix-Westinghouse units.

Maintenance Schedule Diesel

The services shown in this schedule up to 166 000 km (100,000 mi) should be performed after 166 000 km (100,000 mi) at the same intervals. The services shown after 166 000 km (100,000 mi) should be performed at those intervals.

Refer to Explanation of Scheduled Services for further explanation of the maintenance services.

160 km (100 miles)

Perform the wheel stud nut service. (34)

1,600 km (1,000 miles)

  1. Perform the wheel stud nut service. (34)
  2. Perform rear axle air shift motor service. (10)

12,000 km (7,500 miles)

  1. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  2. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  3. Perform wheels and tires service. (14)
  4. Perform parking brake service (or every 6 months, whichever occurs first). (8)

16,000 km (10,000 miles)

Change engine oil and filter (or every 12 months, whichever occurs first). (2)(3)

24,000 km (15,000 miles)

  1. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  2. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  3. Replace fuel filter.
  4. Perform steering system service. (12)
  5. Perform front and rear suspension service. (13)
  6. Perform spring to axle U-bolts and shackle bolts service. (15)
  7. Perform exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
  8. Perform wheels and tires service. (14)
  9. Perform hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
  10. Perform parking brake service (or every 6 months, whichever occurs first). (8)
  11. Perform thermostatically controlled engine cooling fan service. (4)(18)
  12. Perform shields and under hood insulation service. (4)(5)(19)

32,000 km (20,000 miles)

  1. Change engine oil and filter (or every 12 months, whichever occurs first). (2)(3)
  2. Perform air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).

36,000 km (22,500 miles)

  1. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  2. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  3. Inspect door hinge pins and bushings and replace as necessary.
  4. Perform cooling system service.
    5. 4.1. Clean the cooling system filler cap with clean water.
    4.2. Clean the core.
    4.3. Pressure test the cap and the system for proper pressure capability and inspect the condition of cooling and heater hoses and clamps.
    4.4. Replace hoses if cracked, swollen, or damaged.
  5. Perform wheel bearing (grease type) service (or every 24 months, whichever occurs first, and whenever hubs are removed). (20)(34)
  6. Perform wheels and tires service. (14)
  7. Perform parking brake service (or every 6 months, whichever occurs first). (8)
  8. Perform air intake system service (or every 24 months, whichever occurs first). (4)(5)(21)
  9. Perform evaporative control system service (if equipped) (or every 24 months, whichever occurs first). (3)(22)
  10. Perform rear axle air shift motor service. (10)
  11. Perform air brake service (or every 6 months, whichever occurs first). (30)
  12. Perform air brake automatic slack adjuster service (or every 500 hours, whichever occurs first). (31)
  13. Check air brake relay valve operation and check for leaks (or every month, or every 300 hours, whichever occurs first).
  14. Clean air brake application valve (or every 3 months, or every 300 hours, whichever occurs first).

    15. Lubricate the linkage.

  15. Perform air brake chamber service (or every 2 months, whichever occurs first). (32)
  16. Perform trailer brake hand control valve service (or every 3 months, or every 900 hours, whichever occurs first). (33)

48,000 km (30,000 miles)

  1. Change engine oil and filter (or every 12 months, whichever occurs first). (2)(3)
  2. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  3. Replace fuel filter.
  4. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  5. Perform steering system. (12)
  6. Perform front and rear suspension service. (13)
  7. Perform spring to axle U-bolts and shackle bolts service. (15)
  8. Perform exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
  9. Perform wheels and tires service. (14)
  10. Perform hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
  11. Perform parking brake service (or every 6 months, whichever occurs first). (8)
  12. Perform thermostatically controlled engine cooling fan service. (4)(18)
  13. Perform shields and under hood insulation service. (4)(5)(19)

60,000 km (37,500 miles)

  1. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  2. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  3. Perform wheels and tires service. (14)
  4. Perform parking brake service (or every 6 months, whichever occurs first). (8)

64,000 km (40,000 miles)

  1. Change engine oil and filter (or every 12 months, whichever occurs first). (2)(3)
  2. Perform air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).

72,000 km (45,000 miles)

  1. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  2. Replace fuel filter.
  3. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  4. Perform cooling system service:
    5. 4.1. Clean the cooling system filler cap with clean water.
    4.2. Clean the core
    4.3. Pressure test the cap and the system for proper pressure capability and inspect condition of cooling and heater hoses and clamps.
    4.4. Replace hoses if cracked, swollen or damaged.
  5. Perform wheel bearing (grease type) service (or every 24 months, whichever occurs first, and whenever hubs are removed). (20)(34)
  6. Inspect door hinge pins and bushings and replace as necessary.
  7. Perform steering system service. (12)
  8. Perform front and rear suspension service. (13)
  9. Perform spring to axle U-bolts and shackle bolts service. (15)
  10. Perform exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
  11. Perform wheels and tires service. (14)
  12. Perform hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
  13. Perform parking brake service (or every 6 months, whichever occurs first). (8)
  14. Perform thermostatically controlled engine cooling fan service. (4)(18)
  15. Perform shields and under hood insulation service. (4)(5)(19)
  16. Perform rear axle air shift motor service. (10)
  17. Perform air intake system service (or every 24 months, whichever occurs first). (4)(5)(21)
  18. Perform evaporative control system service (if equipped) (or every 24 months, whichever occurs first). (3)(22)
  19. Perform air brake service (or every 6 months, whichever occurs first). (30)
  20. Perform air brake automatic slack adjuster service (or every 500 hours, whichever occurs first). (31)
  21. Check air brake relay valve operation and check for leaks (or every month, or every 300 hours, whichever occurs first).
  22. Clean air brake application valve (or every 3 months, or every 300 hours, whichever occurs first).

    23. Lubricate the linkage.

  23. Perform air brake chamber service (or every 2 months, whichever occurs first).
  24. Perform trailer brake hand control valve service (or every 3 months, or every 900 hours, whichever occurs first). (33)

80,000 km (50,000 miles)

  1. Change engine oil and filter (or every 12 months, whichever occurs first). (2)(3)
  2. Inspect air compressor discharge port (or every 6 months or every 1,800 hours, whichever occurs first).

84,000 km (52,500 miles)

  1. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  2. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  3. Perform wheels and tires service. (14)
  4. Perform parking brake service (or every 6 months, whichever occurs first). (8)

96,000 km (60,000 miles)

  1. Change engine oil and filter (or every 12 months, whichever occurs first). (2)(3)
  2. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  3. Replace fuel filter
  4. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  5. Perform steering system service. (12)
  6. Perform front and rear suspension service. (13)
  7. Perform spring to axle U-bolts and shackle bolts service. (15)
  8. Perform exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
  9. Perform wheels and tires service. (14)
  10. Perform hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
  11. Perform parking brake service (or every 6 months, whichever occurs first). (8)
  12. Perform thermostatically controlled engine cooling fan service. (4)(18)
  13. Perform shields and under hood insulation service. (4)(5)(19)
  14. Perform air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).

108,000 km (67,500 miles)

  1. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  2. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  3. Perform cooling system service.
    4. 3.1. Clean the cooling system filler cap with clean water.
    3.2. Clean the core.
    3.3. Pressure test the cap and the system for proper pressure capability and inspect condition of cooling and heater hoses and clamps.
    3.4. Replace hoses if cracked, swollen or damaged.
  4. Perform wheel bearing (grease type) service (or every 24 months, whichever occurs first, and whenever hubs are removed). (20)(34)
  5. Perform wheels and tires service. (14)
  6. Perform parking brake service (or every 6 months, whichever occurs first). (8)
  7. Perform rear axle air shift motor service. (10)
  8. Perform air intake system service (or every 24 months, whichever occurs first). (4)(5)(21)
  9. Perform evaporative control system service (if equipped) (or every 24 months, whichever occurs first). (3)(22)
  10. Perform air brake service (or every 6 months, whichever occurs first). (30)
  11. Perform air brake automatic slack adjuster service (or every 500 hours, whichever occurs first). (31)
  12. Check air brake relay valve operation and check for leaks (or every month, or every 300 hours, whichever occurs first).
  13. Clean air brake application valve (or every 3 months, or every 300 hours, whichever occurs first).

    14. Lubricate the linkage.

  14. Perform air brake chamber service (or every 2 months, whichever occurs first). (32)
  15. Perform trailer brake hand control valve service (or every 3 months, or every 900 hours, whichever occurs first). (33)

112,000 km (70,000 miles)

Change engine oil and filter (or every 12 months, whichever occurs first). (2)(3)

120,000 km (75,000 miles)

  1. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  2. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  3. Replace fuel filter.
  4. Perform steering system service. (12)
  5. Perform front and rear suspension service. (13)
  6. Perform spring to axle U-bolts and shackle bolts service. (15)
  7. Perform exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
  8. Perform wheels and tires service. (14)
  9. Perform fuel tank, fuel cap and fuel lines service (or every 72 months, whichever occurs first). (3)(24)
  10. Perform EGR system inspection (or every 72 months, whichever occurs first). (3)(25)
  11. Perform hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
  12. Perform parking brake service (or every 6 months, whichever occurs first). (8)
  13. Perform thermostatically controlled engine cooling fan service. (4)(18)
  14. Perform shields and under hood insulation service. (4)(5)(19)

128,000 km (80,000 miles)

  1. Change engine oil and filter (or every 12 months, whichever occurs first). (2)(3)
  2. Perform air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).

132,000 km (82,500 miles)

  1. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  2. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  3. Perform wheels and tires service. (14)
  4. Perform wheel bearings service - - Eaton Axle (oil-filled) (or every 24 months, whichever occurs first). (20)(34)
  5. Perform parking brake service (or every 6 months, whichever occurs first). (8)

144,000 km (90,000 miles)

  1. Change engine oil and filter (or every 12 months, whichever occurs first). (2)(3)
  2. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  3. Replace fuel filter.
  4. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  5. Perform cooling system service.
    6. 5.1. Clean the cooling system filler cap with clean water.
    5.2. Clean the core
    5.3. Pressure test the cap and the system for proper pressure capability and inspect the condition of cooling and heater hoses and clamps.
    5.4. Replace hoses if cracked, swollen or damaged.
  6. Perform wheel bearing (grease type) service (or every 24 months, whichever occurs first, and whenever hubs are removed). (20)(34)
  7. Perform steering system service. (12)
  8. Perform front and rear suspension service. (13)
  9. Perform spring to axle U-bolts and shackle bolts service. (15)
  10. Perform exhaust system service (or every 6 months, whichever occurs first). (3)(4)(16)
  11. Inspect door hinge pins and bushings and replace as necessary.
  12. Perform wheels and tires service. (14)
  13. Perform hydraulic brake service (or every 6 months, whichever occurs first). (7)(34)
  14. Perform parking brake service (or every 6 months, whichever occurs first). (8)
  15. Perform thermostatically controlled engine cooling fan service. (4)(18)
  16. Perform shields and under hood insulation service. (4)(5)(19)
  17. Perform rear axle air shift motor service. (10)
  18. Perform air intake system service (or every 24 months, whichever occurs first). (4)(5)(21)
  19. Perform evaporative control system service (if equipped) (or every 24 months, whichever occurs first). (3)(22)
  20. Perform air brake service (or every 6 months, whichever occurs first). (30)
  21. Perform air brake automatic slack adjuster service (or every 500 hours, whichever occurs first). (31)
  22. Check air brake relay valve operation and check for leaks (or every month, or every 300 hours, whichever occurs first).
  23. Clean air brake application valve (or every 3 months, or every 300 hours, whichever occurs first).

    24. Lubricate the linkage.

  24. Perform air brake chamber service (or every 2 months, whichever occurs first). (32)
  25. Perform trailer brake hand control valve service (or every 3 months, or every 900 hours, whichever occurs first). (33)

156,000 km (97,500 miles)

  1. Check fluid levels (or every 3 months, whichever occurs first). (1)(6)
  2. Perform chassis lubrication service (or every 6 months, whichever occurs first). (11)
  3. Perform wheels and tires service. (14)
  4. Perform parking brake service (or every 6 months, whichever occurs first). (8)

160,000 km (100,000 miles)

  1. Change engine oil and filter (or every 12 months, whichever occurs first). (2)(3)
  2. Inspect engine drive belt.

    3. Replace as necessary.

  3. Change power steering fluid (or every 36 months, whichever occurs first). (12)
  4. Replace power steering reservoir filter element (or every 24 months, whichever occurs first).
  5. Perform front axle service. (29)
  6. Perform rear axle service - - Eaton, Rockwell, Spicer Axles (or every 12 months, whichever occurs firs). (28)
  7. Perform exhaust brake service (if equipped). Check for excessive spindle free play and smooth operation. Lubricate ball joint cap.
  8. Perform air compressor dry element pleated paper air strainer service (or every 2 months or every 800 hours, whichever occurs first).
  9. Inspect air compressor discharge port (or every 6 months or every 1,800 hours, whichever occurs first).
  10. Perform manual transmission (ZF 6-speed only) fluid replacement (or every 48 months, whichever occurs first).

240,000 km (150,000 miles)

  1. Perform cooling system service (or every 60 months since last service, whichever occurs first).
  2. Inspect engine drive belt

    3. Replace as necessary.

320,000 km (200,000 miles)

  1. Remove, disassemble, clean and inspect the air brake trailer supply valve (or every 2 years, or every 7,200 hours, whichever occurs first).
  2. Inspect engine drive belt

    3. Replace as necessary.

400,000 km (250,000 miles)

  1. Perform wheel bearings service - - Eaton Axle (oil-filled) (or every 36 months, whichever occurs first). (20)(34)
  2. Perform rear axle service - - Eaton, Rockwell, Spicer Axles (or every 36 months, whichever occurs first). (28)
  3. Perform manual transmission (except ZF 6-speed) fluid replacement (or every 60 months, whichever occurs first).

480,000 km (300,000 miles)

Remove, disassemble, clean and inspect the air brake air dryer (or every 3 years, or 10,800 hours, whichever occurs first). Replace dessicant on Bendix-Westinghouse units.