Figure 3. Magnetic RPM Sensor Installation
k. Tie-wrap the magnetic RPM sensor cable to existing hydraulic tubes and supports with enough slack to allow
full swashplate movement.
Be sure that magnetic RPM sensor cable cannot
interfere with any moving components, as this
installation is used during flight. When routing
cable, make sure that there is enough slack so that
when the swashplate moves it will not damage
I. Route the cable out of the swashplate access door. Secure it with enough slack to allow for fully extended left
front control rod, but not enough for the cable to become entangled with any moving components. The cable
may be routed through the hydraulic compartment and into the back of the cockpit.
m. Connect magnetic RPM sensor cable to the DAU receptacle marked TACHO 1.
PROCEDURE 3: ACCELEROMETER INSTALLATION
The lateral accelerometer must be mounted to the
bulkhead, not to a shock-mounted component.
a. Install lateral accelerometer (28110900) on accelerometer mounting bracket (29313000), then connect
accelerometer cable (29105605) to lateral accelerometer. Mount accelerometer bracket (29313000) to the
pilot's compartment aft bulkhead (rear canopy bulkhead), with the connector pointing to the right of the
helicopter (to your left when you are facing the bulkhead), see figure 4.
b. Connect accelerometer cable (29105605) from lateral accelerometer to the DAU receptacle marked ACC1.