OPERATION AND INSTALLATION MANUAL
EN-1320
WARNING:
IGNORE OF THE REQUIREMENTS STATED IN TABLE 12-1 CAN RESULT IN PROPELLER
OVERSPEEDING !
B. Propeller Governor LUN7816.(-)
(1) Governor adjustment with element 32.
Perform when:
- the propeller is installed
- the propeller governor is installed
- the engine is installed
Adjustment of minimum flight pitch using the governor element 32 after installation on the engine and at
propeller reinstallation.
a) Verify before adjustment:
1 The beta-ring seats at the hub – the propeller blades are in feather position.
2 The lever "Bc" is at idle stop (figure 12-22).
3 Guideline on the lever aligns with minimum flight pitch guideline on the governor scale (figure
12-23).
NOTE: If the propeller is not in feather position, feather it.
Figure 12-22 Dimension "Y" adjustment Figure 12-23 Lever "Bc" basic position
b) Remove lock wire at both ends of 32 securing both nuts to the rod and loose the nuts (left and right
thread).
c) Find dimension "X" in the governor documentation.
d) Add to the dimension "X" appropriate constant "Z" from table 12-2 , so the final dimension will be:
Y = X + Z
CAUTION:
The "Y" value has not to be less than 1,9 mm (0.075 inch) for governors LUN7816 and LUN7816.01 with
lever P/N 1535-002 ! If necessary, the lever "Sv" P/N 1535-002 is possible to be replaced by lever
P/N 4-ROW1-0101-01. Replacement must be carried out by person authorized by propeller, engine or
governor manufacturer. After replacement the new governor version (LUN7816.02) must be signed in the
ID plate.
61-10-20
PROPELLER CONTROL SYSTEM
(Installation With Jihostroj LUN-Series Governor)
Page 12-20
2017-10-06
