11

FS 6500

BLADE / ENGINE RPM CHART
Blade
Size in
Inches
Blade
Shaft
RPM
No Load
(*1,*3,*4)
Engine
RPM
No Load
(*1)
Setting
Hole No
(*2)
Engine
Sheave
Part No.
Bladeshaft
Sheave
Part No.
(*5)
V-Belts
4-Band
(2 Req’d)
Outer Collar
(*6)
Inner Collar
12 2935 2935 10
541202902
8G4.0x2.0 541202906
8G4.0x1.75 541203835
(4/3VX530) 539300026
(4-1/2”Dia) 539300025
(4-1/2”Dia)
14 2935 2935 10 “ “ “ “ “
18 2270 2554 8 “ 541202905
8G4.5x1.75
“ “ “
20 2270 2554 8 “ “ “ “ “
24 2270 2554 8 “ “ “ “ “
26 2270 2554 8 “ “ “ “ “
30 (*5) 1512 2268 7 “ 541200879
8G6.0x(*5) 541200847
(4/3VX560) 541202080
(6” Dia) 541202078
(6” Dia)
36 (*5) 1316 1975 5 “ “ “ “ “

(*1) NOTE: No load speed; machine at full throttle with no blade installed.

(*2) NOTE: Governor Setting on Engine. See Section 10, page 14.

(*3) NOTE: RPM should be checked under no load conditions at the bladeshaft. A hand held tachometer

is best for this purpose.

(*4) NOTE: To achieve proper bladeshaft RPM it is necessary to change engine and bladeshaft sheaves

along with changing engine governor setting.

(*5) NOTE: 541200879 Sheave requires 541202553 Bushing 1.75 SK.

(*6) NOTE: All Collars use the 539300010 Dowel Pin, 3/8” Dia x 1-3/4”