Unstyled B Governor

Nick

GENERAL -- The JD "H" governor is a multi-function assembly. Its primary function is to control engine speed over a wide range of varying load conditions. For best governor action, there should be no significant play in the fly-weight mounting brackets nor in the weight pins. Bearings are to be examined in accord with criterion set forth at the beginning of this chapter. Look for excessive wear of the lever driving the throttle control shaft. Finally, quality performance depends on the linkage adjustment between the governor and carburetor throttle. Secondary functions are to drive the cooling fan (plus the generator if tractor is so equipped), and the magneto via a coupling at the end of the governor shaft. Inspect the magneto flange and renew as needed. As always, a thorough cleaning makes inspection more effective. The governor-fan shaft interface is a complex and challenging area to restorers of JD tractors.++++

Go the the JD-H site (below) and under ARTICLES 2, one-click on the drop-down GOVERNOR for more enlightening data. The governor is 100% mechanical -- no tricks. Make it sound, and it will work far better than governors of most other brand tractors; very sensitive, very fast! (PatB)

• Restoration Site, JD-H