TM 5-3825-213-35
Section VI. PLOW AND CARRIER ENGINE SPEED GOVERNOR ASSEMBLIES
governor (TM 5-3825-213-20).
201. General
b. Disassembly. Disassemble the plow and carrier
The purpose of the governor assembly is to
engine governors in numerical sequence as illustrated on
maintain desired engine speed by adjusting the throttle
position to accommodate various loads imposed upon
the engine. Weights, driven from the accessory drive
shaft train, respond to variations in engine speed by
203. Plow and Carrier Engine Governor Assemblies
moving inward or outward from the governor shaft. For
Cleaning, Inspection, and Repair
example, as the engine tends to slow down under an
applied load, the weights move inward due to the
reduced centrifugal force. The governor also acts as a
Clean all parts with an approved
a. Cleaning.
protective device to prevent engine damage from
cleaning solvent and dry thoroughly.
overspeeding- Here, as the speed increases toward the
Inspect all parts for
b. Inspection and Repair.
established maximum, the weights move outward under
defective condition. Replace or repair worn, damaged, or
the increased centrifugal force.
At this point the
defective parts.
amounts of fuel and air entering the engine are held to
those needed for the selected maximum speed. An
204. Plow and Carrier Governor Assemblies
increase in spring tension increase the maximum
Reassembly and Installation
governed speed; a decrease in spring tension decreases
a. Reassembly. Reassemble the plow and carrier
the maximum governed speed.
engine governors in reverse of numerical sequence
202. Plow and Carrier Engine Governor Assemblies
b. Installation. Install the plow and carrier engine
Removal-and Disassembly
governors (TM 5-3825-213-20).
a. Removal. Remove the plow and carrier engine
138