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 (6) Align bolt holes for subcap to cylinder head
bolts and replace bolts (7, fig. 5-52) fingertight.
instructions.
(7) Slip fuel rod (8) over pin in control tube lever
c. Service.
(9) and secure with washer (10) and spring retainer (11).
(1) Separate the upper section from the lower
(8) Place a new gasket on governor cover.
section.
(9) Pour 1/2 pint of clean lubricating oil over
(2) Soak the upper section, including the metal-
governor mechanism for initial lubrication.
wool element, in clean fuel oil. This will loosen the oil and
(10) Position cover over subcap. Replace the three
dust in the element. Empty the oil from the sump, remove the
screws which hold cover to subcap and governor case.
baffle, and wash both with clean fuel oil to remove all
Tighten screw holding subcap to governor case and bolts
sediment. Use a lint free cloth to push through the center
holding subcap to cylinder head.
tube before the baffle is reinstalled, then fill sump with clean
(11) Remove bolt (2) from governor control lever
engine oil.
(3). Slip the governor control retracting spring and governor
(3) Wash the preformed packing that fits between
control lever over governor speed adjusting shaft (4). Slip bolt
upper and lower section. If the packing is worn, or deformed,
(2) through loop in retracting spring and insert in control lever.
replace the packing.
Position control lever on shaft and tighten bolt.
(4) Install packing on lower section, and assemble
(12) Start oil line fitting into tee at pressure relief
the upper section to the lower oil sump section.
valve and draw up tight enough to be leakproof.
d. Installation.
Refer to paragraph 5-2.i.(2) for
installation instructions.
NOTE
5-18.
Air Inlet (Shutdown ) Housing
After installing governor on engine and
a. General. The air shutdown housing (air inlet) is
before engine is started for making
mounted on the side of the blower, and serves as a mount for
governor adjustment, the fuel injectors
the air cleaner. It contains an air shutdown valve that shuts
must be properly timed and the exhaust
off the air supply and stops the engine whenever abnormal
valve clearances carefully checked. If
operating conditions require an emergency shutdown.
this was accomplished prior to removing
b. Removal.
the governor it will not be necessary to
(1) Remove the air cleaner (para 5-2.i. (1) ).
repeat at this time.
(2) Disconnect the control wire from the air
shutdown valve lever (fig. 5-6).
(13)
Adjust governor according to c. through g.
(3) Remove the six capscrews and lockwashers
above.
securing the air inlet housing to the blower, and remove the
housing, and gasket from the blower.
5-17.
Air Cleaner
c. Disassembly. If necessary, the shutdown valve may
a. General. The oil bath air cleaner is mounted on the
be disassembled after the housing has been removed from
air inlet housing to filter dust and dirt from the air before it
the blower.
enters the blower and the engine. It is a cylindrical housing,
(1) Refer to figure 5-53 and use a small punch to
containing a wire screen element, and an oil sump directly
remove pins from the shutdown shaft. Remove washer from
below the element. Air enters at middle of the housing; is
shaft. Remove the seal from the housing.
deflected downward over the oil sump; then up through the
element, where it is again deflected downward through the air
inlet housing into the blower.
5-66
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