Husqvarna FS 3800 User Manual

 

15

correct.  Check the oil level frequently to 
ensure that the level never falls below that 
specified in the engine operation manual.  If 
the oil level is low, add SAE 10W30, service 
classification SF or SG oil (for normal 
conditions) as recommended in the engine 
operation manual.  DO NOT overfill engine 
with oil! 

 

4. Operating Instructions 

 

1. 

Perform daily maintenance to saw 
(see chart). 

2. 

Fuel saw if required.  Use good grade 
of regular gasoline (14). 

3. 

Remove blade guard and mount 
blade securely on blade shaft.  For 
saws equipped with Magnalock 
one-piece outer collar blade shaft, 
insert the outer collar through the 
blade and into the female inner collar. 
 Make sure the blade collars are 
clean and free of nicks and burrs on 
the clamping face.  Make sure inner 
collar is tight on the shaft and drive 
key is in place.  Check the drive pin in 
the outer collar for damage, loose fit 
or being bent.  Check the blade arbor 
for gouges, nicks or burrs.  SAW 
BLADE MUST BE HELD TIGHT AND 
RUN TRUE to achieve the proper 
blade performance. 

4. 

If using wet cutting diamond blades, 
visually inspect coolant spray tubes 
for plugged or damaged openings.  
Clean and repair as necessary.  
Proper coolant flow is essential to 
good blade performance. 

5. 

Visually inspect blade guard for 
cracks, hinge failure or loose 
mounting.  Repair or replace guard if 
necessary.  DO NOT USE SAW 
WITHOUT BLADE GUARD 
SECURELY IN PLACE! 

6. 

Set line guides. 

 
To Saw 

1. 

Place water safety switch in the OFF 
position. 

2. 

Start engine and allow it to warm up 
at half throttle.  Observe proper oil 
pressure and charging amps. 

3. 

Set “Quick Stick” speed control 
handle (2) to neutral and engage 
transmission engagement lever (10). 

4. 

Open throttle (5) to full speed 
position.  Engine governor is factory 

set.  DO NOT CHANGE SETTING 
unless you have changed the saw 
blade capacity to accommodate 
larger or smaller diameter blades. 

5. 

Turn on water to blade (8).  Set water 
safety switch to ON position (leave off 
if dry cutting).  If engine stops, 
recheck water supply.  The water 
safety switch will automatically shut 
off the engine if proper water 
pressure is not supplied. 

6. 

Position saw over cut. 

7. 

Lower blade using toggle switch 
located in speed control handle (2) 
(follow instructions on handle).  
Releasing switch will stop blade from 
lowering.  Stop lowering when blade 
contacts pavement.  With blade 
touching pavement, set cutting depth 
indicator (6) to “0”, then continue 
lowering until the desired cutting 
depth is shown on the cutting depth 
indicator. 

8. 

To use depth stop control (3) turn 
handle clockwise until resistance is 
met.  For greater depth, turn handle 
counter-clockwise, for lesser depth 
turn the handle clockwise. 

9. 

Move speed control handle (2) 
forward SLOWLY until proper cutting 
speed is achieved. 

 
When Cut is Finished 

1. 

Put speed control handle (2) back to 
neutral position. 

2. 

Raise blade from cut by using the 
toggle switch in speed control handle. 
 When switch is released, the raise 
will stop and hold in place. 

3. 

Once the blade is completely out of 
the cut, turn off water to blade (8). 

4. 

Close throttle (8) to idle position.  Let 
engine cool down before stopping.  
DO NOT STOP ENGINE AT FULL 
THROTTLE! 

 
NOTE:  All sawing is done with engine at full 
throttle.  Engine governor is factory set to achieve 
proper blade speeds and engine performance.  
DO NOT CHANGE GOVERNOR SETTING 
unless you are changing blade capacity 
(Diameter). 
 
Straight Line Sawing Adjustment 
Your saw is equipped with rear axle adjustment to 
adjust for blade lead off.  The adjustment nut is 
located at the back of the saw on the lower left 
frame.  To adjust saw, stop saw, stop forward 
drive, remove blade from cut and stop engine.  
Loosen rear axle mount bolts on left rear of saw.