Break-In Service

Extra care during the first 100 hours of operation will result in satisfactory long-term engine performance and life.

1. This engine is factory-filled with John Deere Engine Break-In Plus engine oil. Operate the engine at heavy loads with minimal idling during the break-in period.

2. If the engine has significant operating time at idle, constant speeds, and/or light load usage, or additional oil is required in the first 100 hour period, a longer break-in period may be required. In these situations, an additional 100 hour break-in period is recommended using a new change of John Deere Engine Break-In Plus Oil and a new John Deere oil filter.

3. IMPORTANT: DO NOT fill above the top of the crosshatch pattern or the FULL mark, whichever is present. Oil levels anywhere within crosshatch are considered in the acceptable operating range. John Deere Break-In Plus engine oil should be used to make up any oil consumed during the break-in period.

   Check oil by unscrewing and pulling out oil fill cap/dipstick. Oil fill cap/dipstick may be located on left or right side of engine, depending on application. Check oil more frequently during engine break-in period. If oil must be added during this period, John Deere Break-In Plus Oil is preferred. See John Deere Break-In Plus™ Engine Oil — Interim Tier 4, Final Tier 4, Stage IIIB, and Stage IV in the Fuels, Lubricants, and Coolants Section for other oils allowed.

   IMPORTANT: DO NOT use Plus-50 or Plus-50 II engine oil during the break-in period of a new engine or engine that has had a major overhaul. Plus-50 or Plus-50 II engine oil will not allow a new or overhauled engine to properly wear during this break-in period.

4. During the first 20 hours, avoid prolonged periods of engine idling. If engine will idle longer than 5 minutes, stop engine.

5. During the initial operation of a new or rebuilt engine with Break-In Plus, change the oil and filter between a minimum of 100 hours and a maximum of up to 500 hours. (See Changing Engine Oil and Replacing Oil Filter in the Lubrication & Maintenance — 500 Hours/12 Months Section.) Fill crankcase with seasonal viscosity grade oil. (See Diesel Engine Oil — Interim Tier 4, Final Tier 4, Stage IIIB, and Stage IV in the Fuels, Lubricants, and Coolants Section.)

   NOTE: Some increase in oil consumption may be expected when low viscosity oils are used. Check oil levels more frequently.

   If temperature is below 0 °C (32 °F), it may be necessary to use cold weather starting aids (See Cold Weather Operation in the Engine Operation Section).

   If air temperature is below 0 °C (32 °F), use an engine block heater.

6. Watch coolant temperature gauge closely during engine operation. If gauge needle does not rise above minimum oil pressure specification below, stop the engine and determine the cause. If coolant temperature rises above 113 °C (235 °F), the engine will reduce power automatically. Unless temperature drops quickly, stop the engine and determine the cause before resuming operation.

   Monitor oil pressure and coolant temperature to ensure that they are within specification.

   Item	Measurement	Specification
   Engine Oil1	Minimum Pressure at Low Idle	100 kPa (1 bar) (14.5 psi)
   Engine Oil	Minimum Pressure at Rated Speed	300 kPa (3 bar) (43.5 psi)
   Engine Coolant	Temperature Range	85°—97°C (185°—207°F)

7. Check belt for proper alignment and seating in pulley grooves.