Chapter 5 provides instruction for the disassembly, inspection, cleaning and
repair of the 3161 governor.
Wear approved eye protection during disassembly, cleaning, and
assembly of parts, to prevent possible eye injury.
This governor Is a precision device and should be treated as such.
Set the governor upright on wooden blocks to protect the drive shaft.
Do not drop or set the governor on the drive shaft as this may cause
damage to the drive shaft, bearings, seals and other parts inside the
governor.
Troubleshoot the governor before disassembly and repair. Do not disassemble
any further than necessary to correct governor malfunction. All governor
disassembly and repair should be done by personnel experienced in governor
repair and calibration. In all governor repair work, it is essential that all tools, the
work area and governor parts be kept clean.
Remove Governor from Mounting Pad
1. After the governor has been removed from the engine, remove drain plug
(93) and drain as much oil as possible from the case.
2. Clean exterior surface of the governor with a cloth and solvent.
General Disassembly
1. Do not remove or disturb the position of screws or levers which function as
adjustments. Do not disassemble linkages further than required to effect
removal, unless replacement is necessary.
Handle critical parts with care. Keep them separated so mating
surfaces are not damaged. Sharp corners of plunger lands, piston
grooves, metering ports, etc., must be maintained. Rounded corners,
nicks or other damage to such areas will result in excessive internal
leakage and decreased control sensitivity.
2. Discard gaskets, O-rings, oil seals, retaining rings, cotter pins, and roll pins
removed during disassembly.
