EN-1320
OPERATION AND INSTALLATION MANUAL
CAUTION: After replacement of lever "Sv" the BETA-range microswitch must be adjusted.
e) Adjust the element 32 (rod length) that the clearance between control lever pin and the lever "Sv"
corresponds to the dimension "Y". Check the clearance with feeler gauge.
CAUTION:
SHORTEN THE ROD ONLY INSTALLED ON THE GOVERNOR! DO NOT REMOVE THE ROD AT ANY
END!
Governor type
Lever "Sv" type
Propeller model
Constant "Z"
(for calculation of
dimension "Y")
Beta-ring protrusion at
min. flight pitch
LUN7816
LUN7816.01
1535-002
AV-844-1-E-C-F-R(W)
4,0
4,48 mm (0.1764 inch)
0,4
8,21 mm (0.3232 inch)
AV-803-1-E-C-F-R(W)
4,0
4,48 mm (0.1764 inch)
0,4
8,21 mm (0.3232 inch)
AV-725-1-E-C-F-R(W)
4,0
4,48 mm (0.1764 inch)
0,4
8,21 mm (0.3232 inch)
LUN7816.02
4-ROW1-0101-01
AV-844-1-E-C-F-R(W)
7,0
4,48 mm (0.1764 inch)
3,4
8,21 mm (0.3232 inch)
AV-803-1-E-C-F-R(W)
7,0
4,48 mm (0.1764 inch)
3,4
8,21 mm (0.3232 inch)
AV-725-1-E-C-F-R(W)
7,0
4,48 mm (0.1764 inch)
3,4
8,21 mm (0.3232 inch)
Table 12-2 Minimum flight pitch adjustment
f) Axial clearance between the beta-ring and carbon blocks is equally divided to both sides when the
element 32 is adjusted. Total clearance between the beta-ring and carbon blocks is at least
0,15-0,18 mm (0.006-0.007 inch) for the new assembly (figure 12-16). Maximum clearance permitted is
0,4 mm (0.016 inch). Measure this clearance using following procedure: press the carbon block
assembly to one side of the beta-ring and use feeler gauge to measure the total clearance.
g) After adjustment and clearance measurement, tighten both nuts of the rod 32 (figure 12-24 - left and
right thread) and secure with recommended lock wire.
Figure 12-24 Rod 32 – adjustment and securing
61-10-20
PROPELLER CONTROL SYSTEM
(Installation With Jihostroj LUN-Series Governor)
Page 12-21
2017-10-06