In the spring of 1981, the 86-series tractors were replaced by the 88-series. The 886 was succeeded by the 3288, and the 986 by the 3688. A year later, two smaller models were added: the 3088 and the 3488 Hydro. The 3088 series models had 5.9- and 7.1-liter naturally aspirated six-cylinder engines and 16 gears, using a 2-speed powershift. The powershift was controlled by a lateral movement of the main gear lever. The cab was a similar air-conditioned Control Center as in the larger models, and there were three different interior options available, with leather being the most expensive. The controls were centralized on the right-side panel.

The 3688 was available with an optional closed hydraulic system. The engine oil change interval was extended to 200 hours. The cooling air circulation was similar to that of the 5088 series. The tractors were also available as four-wheel-drive models. The technical specifications presented are for rear-wheel-drive models according to the US market.

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