Engine Speed - Husqvarna FS 4800 D Manual De Instrucciones

14 Engine / Blade Shaft / Gearbox
Speed Adjustment
(See Figures 1-6)
WARNING: Serious injury can occur to the
operator or people in the work area if the
rotational speed (n/min) of the DIAMOND
BLADE (2E) exceeds the maximum speed (n/
min) marked on the DIAMOND BLADE (2E).

ENGINE SPEED:

The engine speed on this machine does not need to
be changed from the factory set speed. The maximum
engine RPM should be 50, no load.
BLADE SHAFT SPEED:
The blade shaft speed on this machine should be checked
Never install a DIAMOND BLADE (E) if the blade shaft
rotational speed (n/min) of the machine is greater than
the maximum speed (n/min) marked on the DIAMOND
BLADE (E)! The BLADE SHAFT PULLEY (-1N,
-N) and BLADE SHAFT FLANGE (B & F) may
need to be changed if the diameter of the Diamond Blade
is changed!
SINGLE SPEED GEARBOX MODEL:
Each saw model, as delivered from the factory, is
inside the blade guard installed on the machine. If a blade
be changed.
If changing from a small to a very large DIAMOND BLADE
(E) on a machine with a single speed gearbox, the Blade
Shaft Pulleys (-1L), Gearbox Pulleys (-1N), the BLADE
SHAFT FLANGES (B & F), and the Blade Guard must
be changed.
For example, to change a single speed gearbox model
from a 14" (50mm) drive to a 6" (900mm) drive:
1. Change Engine Gearbox Pulley from 6.00" (15mm)
diameter to .50" (88.9mm) diameter.
. Change Blade Shaft Pulley from 4.1" (114.mm)
diameter to 5.60" (14.mm) diameter.
. Change Blade Flanges from 4.50" (114.mm) diameter
to 6" (15mm) diameter.
4. Change BLADE GUARD (H) from 14" (50mm) to
6" (900mm).
5. Engine Speed does not change.
See Blade Size Conversion charts for specific
information.
THREE SPEED GEARBOX MODEL (14-26, 18-30,
20-36):
CAUTION: Never shift the Gearbox (3-2A)
with engine running! Only shift the Gearbox
(3-2A) with engine OFF! Gearbox damage
could occur.
See "GEARBOX SHIFT LEVER (-O)" for details about
operating shift lever.
A machine factory equipped with a Three Speed ENGINE
GEARBOX (-A), while designed to minimize adjustments
required for blade size changes, will require some
adjustments. The machine is designed to operate with a
blade guard. Color coded information on machine, and
information in operation manual, shows allowable blade
6" (50 to 650 mm) blades, b) 18-0, for 18" to 0" (450
to 750 mm) blades, c) 0-6, for 0" to 6" (500 to 900
mm) blades. For example, to change the blade size on
18" to 0" (450 to 750 mm), requires only that GEARBOX
SHIFT LEVER (-O) be moved into the correct position
(1, , or ). If the required blade size is outside of the
above 0" (750 mm) for this example], then the machine
shifting the GEARBOX SHIFT LEVER (-O), changing
BLADE SHAFT PULLEYS (-L), GEARBOX PULLEYS
(-N) and BLADE SHAFT FLANGES (B & F).
Example: To change a three-speed gearbox model from a
This should correspond to the BLADE SHAFT FLANGE
(B & F) diameter installed on the saw.
(B & F) diameter is should be 6.00" (15mm):
a) Verify proper pulley diameters are installed (See Blade
b) Shift the GEARBOX SHIFT LEVER (-O) from
 to 1.
speed corresponds with information in operation manual,
and gearbox range decal (54 19 06-00).
If the machine drive configuration is an 18-0, the
FLANGE (B & F) diameter should be 5.00" (17mm):
a) Change the BLADE SHAFT PULLEY from 4.50" (114.
mm) diameter to 5.0" (1mm).
b) Change the BLADE SHAFT FLANGE from 5.00"
(17mm) diameter to 6.00" (15mm).
c) Shift the GEARBOX SHIFT LEVER (-O) from
 to 1.
information in operation manual.
54 19 06-00, 54 0 65-46, 54 0 65-49 are required).
See the "Decals and Locations" page of this manual for
more information.
(B & F) diameter should be 4.50" (114.mm):
a) Change the BLADE SHAFT PULLEY from 4.1"
(105mm) diameter to 5.0" (1mm).
b) Change the BLADE SHAFT FLANGE from 4.50"
(114.mm) diameter to 6.00" (15mm).
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