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 saw s:
F A I L U R E T O C O M P L Y C A N R E S U L T I N S E R I O U S P E R S O N A L
I N J U R Y
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.
F S 3 8 0 0
B L A D E / E N G I N E R P M C H A R T
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
1 2 2 8 6 9 2 5 5 0 1 1
5 4 1 2 0 2 0 8 3
6 G 4 . 5 x 1 . 7 5
5 4 1 2 0 2 0 8 1
6 G 4 . 0 x 1 . 7 5
5 4 1 2 0 0 8 4 8
( 3 / 3 V X 5 3 0 )
5 3 9 3 0 0 0 2 6
( 4 - 1 / 2 ” D i a )
5 3 9 3 0 0 0 2 5
( 4 - 1 / 2 ” D i a )
1 4
2 8 6 9
2 5 5 0
1 1
“ “ “ “ “
1 8 2 2 6 7 2 5 5 0 1 1
5 4 1 2 0 2 0 8 1
6 G 4 . 0 x 1 . 7 5
5 4 1 2 0 2 0 8 3
6 G 4 . 5 x 1 . 7 5
“ “ “
2 0
2 2 6 7
2 5 5 0
1 1
“ “ “ “ “
2 4
2 2 6 7
2 5 5 0
1 1
“ “ “ “ “
2 6
2 2 6 7
2 5 5 0
1 1
“ “ “ “ “
30 (*5)
1 5 1 2
2 2 6 8
9
“
5 4 1 2 0 1 3 9 0
6 G 6 . 0 x ( * 5 )
5 4 1 2 0 1 3 9 1
( 3 / 3 V X 5 6 0
)
5 4 1 2 0 2 0 8 0
( 6 ” D i a )
5 4 1 2 0 2 0 7 8
( 6 ” D i a )
36
(*5)
1 3 1 6
1 9 7 5
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”
Summary of Contents for FS 3800
Page 18: ...18 FS 3800 FS 6500 WIRING SCHEMATIC ...
Page 19: ...19 FS 3800 FS 6500 Raise Lower Electric Schematic ...
Page 22: ...22 ...
Page 24: ...24 2007 31 504 63 69 03 ...
