Filter
Top Products
10
Blade / Engine (RPM)
W
W
A
A
R
R
N
N
I
I
N
N
G
G
:
:
Important safety information for the operation of pavement saws:
FAILURE TO COMPLY CAN RESULT IN SERIOUS PERSONAL
INJURY
When blade diameter is changed, blade guard, bladeshaft drive and engine RPM (governor setting) MUST
also be changed to maintain proper blade speed. Bladeshaft RPM must be checked prior to installing blade
on equipment (*3). Proper blade speed (RPM) is very important for safe operation and product
performance. The chart, shown below, provides the recommended bladeshaft RPM settings, which will
result in proper speeds for various size blades.
FS3800
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 2869 2550 11
541202083
6G4.5x1.75
541202081
6G4.0x1.75
541200848
(3/3VX530)
539300026
(4-1/2”Dia)
539300025
(4-1/2”Dia)
14 2869 2550 11 “ “ “ “ “
18 2267 2550 11
541202081
6G4.0x1.75
541202083
6G4.5x1.75
“ “ “
20 2267 2550 11 “ “ “ “ “
24 2267 2550 11 “ “ “ “ “
26 2267 2550 11 “ “ “ “ “
30 (*5) 1512 2268 9 “
541201390
6G6.0x(*5)
541201391
(3/3VX560
)
541202080
(6” Dia)
541202078
(6” Dia)
36 (*5) 1316 1975 7 “ “ “ “ “
(*1) NOTE: No load speed; machine at full throttle with no blade installed.
(*2) NOTE: Governor Setting on Engine. See Engine Governor Settings 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 SF.
(*6) NOTE: All Collars use the 539300010 Dowel Pin, 3/8” Dia x 1-3/4”