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John Deere – 1023E, 1025R and 1026R – Install Block Heater: 3TNV76 and 3TNV80

[1] – Park machine safely.

[2] – Allow engine to cool before servicing the cooling system.

[3] –
→NOTE:

Place a suitable container under radiator drain hose. Open radiator drain valve (A) and drain the coolant.

[4] – Place clean container under engine and remove engine coolant drain plug (B).

[5] – When all coolant has drained, remove freeze plug (C) from engine block.

[6] – Clean cylinder head and threaded holes where block heater adapter is installed.

[7] – Install gasket (D) between adapter (E) and cylinder block. Install cap screws (F) and tighten to specification.

[8] – Apply thread sealant to threads of heating element and thread heating element (G) into adapter. Tighten element to specification.

[9] – Connect 115 VAC cord (H) to block heater. Route cord to accessible location and secure with plastic tie.

[10] – Install block drain plug and close drain valve on radiator. Fill cooling system with good clean antifreeze.