New Holland 86018524 Controller

The New Holland 86018524 is a chassis control module (CCM) used in the 8670/8770/8870/8970 series tractors to manage engine start/stop, hydraulic pressure, and I/O for PTO and other accessories. Common failure modes include power‑supply overvoltage or brownouts that burn input protection diodes, shorted motor driver traces causing loss of hydraulic control, and internal relay failures leading to intermittent communication with the tractor’s central ECU. First‑check diagnostics: verify 12 V/24 V rail integrity with a multimeter, inspect for visible scorch marks or blown fuses on the board, and review diagnostic trouble codes from the tractor’s onboard computer for CCM‑related errors.[oss-gpt-20b]

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We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.

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