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MAINTENANCE MANUAL
THE CLEARANCE BETWEEN THE SPEED SENSOR AND THE GEAR IS 0.010 |0.002 INCH
THE DEPTH OF THE SPEED SENSOR INTO THE RAT STRUT HOUSING (DIMENSION "C") IS CALCULATED AS FOLLOWS: "C" |0.002 = ("A"-"B") -0.010
Speed Sensor Adjustment with a Locknut
Figure 501 (Sheet 2)
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MAINTENANCE MANUAL
RAM AIR
TURBINE
(RAT)
SEE A
DOOR FOR THE RAM AIR TURBINE (RAT) COMPARTMENT
FWD SPEED SENSOR
RAM AIR TURBINE (RAT)
SEE B
A
TURBINE HUB
SCREW (2 LOCATIONS)
SPEED SENSOR COVER
RAT STRUT HOUSING
SPEED SENSOR
GEAR
SPEED
SENSOR
SCREW SEE C
(2 LOCATIONS) SPEED SENSOR SHIM
SPEED SENSOR
B
Speed Sensor Adjustment with a Shim Figure 502 (Sheet 1)
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SHIM
THE CLEARANCE BETWEEN THE SPEED SENSOR AND
THE GEAR IS 0.010 |0.002 INCH
THE DEPTH OF THE SPEED SENSOR INTO THE RAT
STRUT HOUSING (DIMENSION "C") IS CALCULATED
AS FOLLOWS: "C" = ("A"-"B") -0.010
THE SHIM THICKNESS (DIMENSION "E")
IS CALCULATED AS FOLLOWS:
"E" |0.002 = "D"-"C"
Speed Sensor Adjustment with a Shim Figure 502 (Sheet 2)
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2) Remove the speed sensor insert and the lockwasher from the speed sensor. 3) Install a speed sensor insert and a new key lockwasher on the speed sensor.
NOTE: Do not bend the tabs on the lockwasher at this time.
____
4) Adjust the speed sensor insert and the locknut until Dimension C on the speed sensor is correct, then tighten the locknut as follows: a) Tighten the locknut to 10-15 pound-inches.
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