Woodward ProAct I, Product Manual

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ProAct I/II Manual 04121
30 Woodward
Installation Checkout Procedure
With the installation complete as described in this chapter, do the following check
out procedure before beginning the start-up adjustments in Chapter 4.
1. Visual
inspection
A.
Check the linkage or coupling between the actuator and fuel metering
device for looseness or binding.
B. Check for correct wiring in accordance with the wiring diagram (Figure 1-5).
C. Check for broken terminals and loose terminal screws.
D. Check the speed sensor for visible damage. If the sensor is a magnetic
pickup, check the clearance between the gear and the sensor, and adjust if
necessary. Clearance should be between 0.25 and 1.25 mm (0.010 and
0.050 inch) at the closest point. Make sure the gear runout does not exceed
the pickup clearance.
2.
Check for grounds
Check for grounds by measuring the resistance from all control terminals to
chassis. All terminals except terminals 9, 11, and 25, should measure
infinite resistance (the resistance of terminals 9 and 11 depends on whether
a floating or grounded power source is used). If a resistance less than
infinite is obtained, remove the connections from each terminal one at a time
until the resistance is infinite. Check the line that was removed last to locate
the fault.
3.
Stroking the actuator
The actuator may be stroked electronically using the failsafe override in
Menu 6 and the start fuel limiter in Menu 4.
Do not crank or attempt to start the engine during this procedure.
A. Verify the Run/Stop contact is open or in the stop mode.
B. Set the Start Fuel Limiter (Menu 4) to 50% to 90%.
C. Go to Menu 6 and enter Configuration Key (49). Step down to the Failsafe
function and disable it.
D. Close the Run/Stop contact to run mode.
E.
Go to Start Fuel Limiter (Menu 4) and move the set point up or down. Verify
the actuator follows.
F. Open the Run/Stop contact. Verify the actuator goes to the minimum fuel
position (forward acting).
4. Chassis
Ground
Check for resistance from chassis to earth ground. The resistance should be
zero. If earth ground is not available, tie the chassis to system ground,
battery positive or negative.
5.
Go to Menu 6, enter Configuration Key (49), and enable the Failsafe switch.
To prevent possible serious injury from an overspeeding engine, it is
important to have the Failsafe switch enabled prior to cranking the
engine.