Manual 36532 DY
NA 70025 Integrated Actuator
QCC LLC 5
Chapter 2.
Ca
libration
1. Make certain the electronic governor adjustments are set as stated in the
proper governor literature. The speed adjustment is a 20-turn potentiometer
on the DYN1-10784 and DYN1-10794 control boxes. Turn it counterclockwise
(CCW) 20 turns and then clockwise (CW) 5 turns.
2. Rotate and hold the throttle shaft lever to maximum position as permitted
by present high idle screw adjustment. Do not attempt at this time to adjust
the high idle screw beyond its present setting.
3. Turn on the DC power to the system.
NOTE: Be sure Step 1 above has been performed.
4. Start the engine. The engine should be operating on the integrated
actuator cover governor. The speed should be below 1800 RPM or the
desired speed.
NOTE: Check for fuel leaks.
5. Slowly, using the governor control box speed adjustment, increase the
engine speed. (If the engine does not increase in speed, follow the
troubleshooting procedure in the governor manual.)
6. Keep increasing the speed until it is approximately 20 RPM higher than
the speed calculated in Step 2 of the control box installation procedure. If
this speed cannot be obtained, loosen the jam nut on the high idle speed
adjustment screw of the throttle lever and turn the high idle adjustment
screw counterclockwise (CCW) until the calculated speed can be
obtained. See Figure 6.
7. Set the speed with the electronic governor to the value calculated in Step
2 of the control box installation procedure. Then slowly turn the high idle
adjustment screw on the throttle lever clockwise (CW) until the speed just
starts to decrease. Turn the high idle adjustment screw counterclockwise
(CCW) until the speed just controls at the proper calculated speed.
Tighten the high idle adjusting screw locknut to 35-45 lbs/in.
8. Turn the low idle screw clockwise (CW) to lock the throttle lever at this
maximum position. Tighten the low idle adjustment screw locknut to 35-
45 lbs/in.
NOTE: On some pump bodies, the low idle adjustment screw may not be
able to position the throttle lever to the proper position. If it cannot hold
the throttle to the proper position, use a spring to hold the throttle to the
maximum position, otherwise maximum speed and power will not be
obtainable.
CAUTION: Do not attach springs to the engine’s high pressure lines.
9. Decrease the speed on the electronic governor control box until the
desired run speed is obtained.
10. Properly calibrate the adjustments of the electronic governor. Check the
system for good response and stability at all possible loads and speeds.
11. Shut off the engine.
To Next Page
Loading...