Contents 

3-Point hitch

Power Take-Off

Limited-slip differential

4-Wheel drive

4-Wheel steering

Power steering

Hydrostatic transmission

The Small Tractor FAQ
Frequently Asked Questions
 

"What features will I need?"


Here is a list of optional tractor features and how they may benefit you. Note that most of these options consume engine horsepower and may influence tractor size requirements. For more suggestions, see the Notes section following the Tractor Selection Chart in Question #1. For definitions of terms, please see the glossary

3-Point Hitch (3PH). This is a standard mechanism for attaching implements to different manufacturers' tractors. A lightweight, "Category 0" hitch is available on some small tractors, but should be avoided in favor of a "Category 1" hitch if implements are to be exchanged with other tractor brands.

Power Take-Off (PTO). This is a way to energize implements attached to the tractor using the tractor's own power train. Very useful for tillers, mowers, post-hole diggers, etc. Most estate and farm tractors use standardized 540 and/or 1000 rpm PTOs, while lawn and garden tractors often use proprietary speeds and mechanical connections which are incompatible with industry standard implements.

Limited-slip Differential. Less expensive than 4-wheel drive, a limited-slip differential improves traction and helps prevent wheel spin in slippery conditions by making both rear wheels work together. A mechanical differential lock available on some tractors accomplishes the same thing, but must be activated manually and should not be used while turning.

4-wheel drive (4WD). 4-wheel drive is beneficial where traction is poor or when negotiating hilly terrain.

4-wheel steering (4WS). For exceptional maneuverability around obstacles. One garden tractor manufacturer advertises a 6.5-inch turning radius on its 4WS machine.

Power steering. Makes steering easier, especially when tractor is stopped or moving very slowly. Power steering is essential for front loader work.

Hydrostatic transmission. Eliminates the nuisance of changing gears. Especially useful when reversing direction often. Much safer than clutch-activated power train. Very helpful for loader work. Consumes 15-20% of engine horsepower.

Copyright (c) 1997 by Ken Burner. All rights reserved.
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