Figure 14-6. Speed Switch Sensitivity Tests.
No adjustments required for Speed Switch
Forester (figure 14-7A) used on Serial Num
hers FZ01299 on, for 50/60 Hz and Serial
Numbers FZ-06399 on, for 400 Hz. Speed
setting can be checked, but not adjusted.
1420. Speed Switch Disassembly.
Refer to figure 14-7; cut safety wire and disassemble in
sequence of index numbers observing the following:
g. If either the rotor assembly, the body assembly
or the spacer are damaged or defective, replace defective
part. Reassembly is the reverse order of disassembly.
Refasten with lockwire after readjustment.
b. Repeat the test and adjustment procedures in
Refer to Operator and Organizational
Maintenance Manual and install speed switch.
14-21. Tachometer Drive and Adapter Removal and
See figure 14-6 and proceed as follows:
a. Adapter. Uncouple adapter from tachometer
b. Tachometer drive. Remove screw and clamp.
Lift tachometer drive up and out of engine housing.
c. Disassemble tachometer drive:
(1) By means of a gear puller, remove gear from
(2) Remove shaft from top of housing.
(3) Remove preformed packing.
14-22. Tachometer Drive and Adapter Inspection and
14-10 Change 11