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ISBe/ISB Series Engines – 102-002   Maintenance Schedule

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General Information

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For your convenience, listed below are the section numbers that contain specific instruction for performing the maintenance checks listed in the maintenance schedule.

Perform maintenance at whichever interval occurs first. At each scheduled maintenance interval, perform all previous maintenance checks that are due for scheduled maintenance.

    Maintenance Procedures at Daily Interval
     Section 3

  • Air Intake Piping – Inspect
  • Cooling Fan – Inspect
  • Crankcase Breather Tube – Inspect
  • Engine Coolant Level – Check
  • Engine Lubricating Oil Level – Check
  • Fuel-Water Separator – Drain

    Maintenance Procedures at 12,000 km [7500 mi], 250 Hours, or 3 Months
     Section 4

  • Air Cleaner Restriction – Check
  • Air Compressor Mounting – Check
  • Charge Air Cooler – Check
  • Fuel Pump Mounting – Check

    Maintenance Procedures at 24,000 km [15,000 mi], 500 Hours, or 6 Months
     Section 5

  • Cooling System – Check
  • Fuel Filter, Spin-On Type – Change
  • Lubricating Oil – Change
  • Lubricating Oil Filters – Change
  • Radiator Pressure Cap – Check

    Maintenance Procedures at 48,000 km [30,000 mi], 1000 Hours, or 1 Year
     Section 6

  • Drive Belts – Check
  • Fan Belt Tensioner – Check
  • Fan Hub, Belt-Driven – Check
  • Air Compressor Carbon Build-up – Check

    Maintenance Procedures at 96,000 km [60,000 mi], 2000 Hours, or 2 Years
     Section 7

  • Cooling System – Change
  • Radiator Hoses – Check
  • Vibration Damper – Check
  • Vibration Damper (rubber) – Check

    Maintenance Procedures at 241,500 km [150,000 mi], 5000 Hours, or 4 Years
     Section 8

  • Overhead Set – Measure

Oil Drain Intervals

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ISB

Refer to the following flowchart to determine the maximum recommended oil change and filter change intervals in kilometers, miles, hours, or months, whichever comes first.

Is the vehicle one of those listed below?

  • Delivery truck
  • School bus
  • Fire truck/emergency vehicle.

If Yes –

Select the correct oil drain interval from Table 1.

If No –

Is the vehicle one of those listed below?

  • Refuse truck
  • Mixer/dumper.

If Yes –

Select the correct oil drain interval from Table 2.

If No –

If the vehicle is a shuttle or transit bus, select the oil drain interval from Table 3.

If the vehicle is a recreational vehicle or a vehicle that has
not been listed, select the correct oil drain interval from Table 4.

Table 1, Maximum Oil Drain Intervals
(A) Severe-Duty (If the Vehicle Meets Any of These Conditions) (B) Normal-Duty (If the Vehicle Meets Both of These Conditions)
Average fuel economy is less than 2.98 km/liter [7.0 mpg], or idle time is 40 percent or greater, or vehicle operates in dusty areas, or gross vehicle weight is greater than 20,865 kg [46,000 lb]. Average fuel economy is greater than 2.98 km/liter [7.0 mpg], and gross vehicle weight is less than 20,865 kg [46,000 lb].
 
Vehicle uses the severe-duty oil drain interval (A). Vehicle uses the normal-duty oil drain interval (B).
(A) Severe-Duty 14.500 km [9000 mi], 500 hours, 6 months, or 7571 liters [2000 gal] of fuel, whichever occurs first (B) Normal-Duty 24,000 km [15,000 mi], 500 hours, 6 months, or 7571 liters [2000 gal] of fuel, whichever occurs first.
Table 2, Oil Drain Intervals
Refuse Truck, Mixer, or Dump Truck Kilometers Miles Hours Months
Below 10 – mph average 4850 3000 500 6
10 to 15 – mph average 9650 6000 500 6
15 to 20 – mph average 13,770 8500 500 6
20 to 25 – mph average 14,500 9000 500 6
Higher than 25 – mph average 19,000 12,000 500 6
Table 3, Oil Drain Intervals
Shuttle or Transit Bus Kilometers Miles Hours Months
10 to 15 – mph average 9650 6000 500 6
8 to 10 – mph average 8050 5000 500 6
6 to 8 – mph average 6450 4000 500 6
4 to 6 – mph average 4850 3000 500 6
2 to 4 – mph average 2400 1500 500 6
Table 4, Oil Drain Intervals
Vehicle/Equipment Kilometers Miles Hours Months
Recreational Vehicle 24,000 15,000 500 12
Truck Crane 14,500 9000 500 6
Yard Spotter 14,500 9000 500 6
All others 14.500 9000 500 6

Cummins Inc. bases its oil drain specifications on duty cycle and oil contamination. This contamination occurs in all engines at varying rates regardless of design.

Maintaining the correct oil and filter change interval is a vital factor in preserving the integrity of an engine. Filters
must be changed when the oil is changed.

The appropriate Operation and Maintenance manual
must be consulted for detailed instructions and specific tables or charts on oil and filter change intervals.

The maximum lubricating oil drain interval for applications powered by the ISB
e Euro 3 engine can be determined by carrying out the following procedure.

Refer to the following flowchart to determine the maximum recommended oil change and filter change intervals in kilometers, miles, hours, or months, whichever comes first.

Is the vehicle one of those listed below?

  • Municipal
  • Tipper
  • Cement Mixer
  • Long Haul
  • Short Haul
  • Coach.

If Yes –

Step 1. Determine the vehicle(s) average fuel consumption, representative of the vehicle(s) overall operation.
Step 2. Determine the vehicle(s) engine configuration, 4 cylinder or 6 cylinder.
Step 3. Make sure the lubricant selected (ACEA, API or CES) conforms to the specifications detailed in Tables 1 and 2.

NOTE: CG4/SH oils can be used in areas where none of the recommended oils are available, but the oil drain interval
must be reduced by one half of the interval given in the maintenance schedule.

Step 4. Make sure the vehicle Gross Vehicle Weight (GVW) configuration is within the tabulation limit.

NOTE: If the vehicle GVW is in excess of the tabulation limit, the oil change interval
must be reduced to one half of the interval given in the maintenance schedule.

NOTE: If CG4/SH oil is used within a vehicle, with a GVW in excess of the tabulation limit, then the oil change interval
must be reduced to one quarter of the interval given in the maintenance schedule.

Step 5. Refer to Tables 1 and 2 to determine the appropriate lubricating oil drain interval, defined by your selection of oil quality and vehicle operation.

NOTE: A change in vehicle application/duty cycle will require a reassessment of the established lubricating oil drain interval.

If No –

Is the vehicle one of those listed below?

  • 135/150 PS 4 cylinder City/Urban bus
  • 185/220 PS 6 cylinder City/Urban bus.

If Yes –

Step 1. Determine the vehicle(s) average speed category(s), representative of the vehicle(s) operation, determined within Table 3.
Step 2. If unaware of the vehicle average speed operation utilize a lubricating oil drain interval of 1000 hours.
Step 3. If the operation of the vehicle(s) encroaches across the specified average speed category boundaries, then the lesser vehicle speed category should be used.
Step 4. Make sure the lubricant selected (ACEA, API or CES) conforms to the specification detailed in Table 3.

NOTE: CG4/SH oils can be used in areas where none of the recommended oils are available, but the oil change interval
must be reduced to one half the interval given in the maintenance schedule.

Step 5. Make sure the vehicle Gross Vehicle Weight (GVW) configuration is within the tabulation limit.

NOTE: If the vehicle GVW is in excess of the tabulation limit, the oil change interval
must be reduced to one half of the interval given in the maintenance schedule.

NOTE: If CG4/SH oil is used within a vehicle, with a GVW in excess of the tabulation limit, then the oil change interval
must be reduced to one quarter of the interval given in the maintenance schedule.

Step 6. Refer to Table 3, to determine the appropriate lubricating oil drain interval, defined by your selection of oil quality and vehicle average speed operation.

NOTE: A change in vehicle application/duty cycle will require a reassessment of the established lubricating oil drain interval.

If No –

Is the vehicle one of those listed below?

  • 250 PS Fire Truck

If Yes –

Select the correct oil drain interval from Table 4.

Table 1, Euro 3 ISB
e 4 Cylinder (GVW up to 15 tonne), Maximum Oil Drain Intervals
  Engine Configuration Duty Cycle Definition Severe Operation Normal Operation
  4 Cylinder Fuel Con. m.p.g., Fuel Con. l/100km. less than 13, greater than 21.5 equal to or greater than 13, equal to or less than 21.5
 
Oil Type   Drain Interval, whichever comes first Severe Duty Normal Duty
ACEA E5, API CH4, CES 20071, CES 20072, CES 20076, CES 20077, CES 20078   km., hours., months., Acceptable Filter (Fleetguard®) 25000, 700, 6, LF3886 40000, 1000, 6 LF3886
Table 2, Euro 3 ISB
e 6 Cylinder (GVW up to 25 tonne, and occasional 32 tonnes drawbar – up to 25 %), Maximum Oil Drain Intervals
  Engine Configuration Duty Cycle Definition Severe Operation Normal Operation
  6 Cylinder Fuel Con. m.p.g., Fuel Con. l/100km. less than 11.5, greater than 24.5 equal to or greater than 11.5, equal to or less than 24.5
 
Oil Type   Drain Interval, whichever comes first Severe Duty Normal Duty
ACEA E5, API CH4, CES 20,071, CES 20,072, CES 20,076, CES 20,077, CES 20,078   km., hours., months., Acceptable Filter (Fleetguard®) 25000, 700, 6, LF3886 40000, 1000, 6, LF3886
Table 3, Euro 3 ISB
e 4 Cyl. 135/150 Urban Bus (GVW up to 12 tonne), Maximum Oil Drain Intervals. Euro 3 ISB
e 6 Cyl. 185/220 Urban Bus (GVW up to 15 tonne,) Maximum Oil Drain Intervals
  Vehicle Average Speed Category
Oil Type Drain Interval whichever comes first less than 10 kph 10 to 15 kph 15 to 20 kph 20 to 25 kph 25 to 30 kph
ACEA E5, API CH4, CES 20071, CES 20072, CES 20076, CES 20077, CES 20,078 km., hours., months., Acceptable Filter (Fleetguard®) 7500, 1000, 6, LF 3886 10000, 1000, 6, LF 3886 15000, 1000, 6, LF 3886 20000, 1000, 6, LF 3886 25000, 1000, 6, LF 3886
Table 4, Euro 3 ISB
e 250 ps – Fire Truck Operation (GVW up to 18 tonne), Maximum Oil Drain Intervals
Oil Type Drain Interval, whichever comes first Drain Interval, whichever comes first
ACEA E5, API CH4, CES 20,071, CES 20,072, CES 20,076, CES 20,077, CES 20,078 hours., months., Acceptable Filter (Fleetguard®) 1000, 12, LF 3886

NOTE: For Lubricating Oil Recommendations and Specifications for ISB
e Euro 3 engines,
refer to Procedure 018-003 in Section V.
Last Modified:  21-May-2009
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