TM 5-3895-346-14
ENGINE OVERHAUL
AIR SHUTDOWN HOUSING
AIR SHUTDOWN HOUSING
The air shutdown housing on the in-line engine is mounted on the side of the blower. The housing serves as a
mounting for the air cleaner or the ducting for an air cleaner mounted away from the engine. The air shutdown
housing contains an air shutoff valve that shuts off the air supply and stops the engine whenever abnormal
operating conditions require an emergency shut down.
Remove Air Shutdown Housing
1. Disconnect and remove the air ducts between the air cleaner and the air shutdown housing.
2. Disconnect the control wire from the air shutoff cam-pin handle.
3. Remove the bolts and washers that retain the housing to the blower and remove the housing from the
blower. Remove the air shutdown housing gasket from the blower.
CAUTION
The bolts that retain the air inlet housing to the blower are of different lengths. Mark the location of each
bolt to insure proper installation later.
CAUTION
Cover the blower opening to prevent dirt or foreign material from entering the blower.
Disassemble Air Shutdown Housing
Refer to Fig. 1 and disassemble the air shutdown housing as follows:
1. Remove the pin from the end of the shutdown shaft. Then remove the washer from the shaft and the seal
ring from the housing.
Figure 1. Typical In-Line Engine Air Shutdown Housing Details and Relative Location of Parts
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