I N I T I A L U PS TA R T
26
SuperSaw 650S
en011406b_ss650.FM
Adjusting saw bar feed out pressure
The saw bar feed out pressure is created by a restrictor installed in
the saw motors return line. The feed out pressure can be adjusted
by changing the size of the restrictor.
•
a smaller restrictor will create a higher pressure.
•
a larger restrictor will create a lower pressure.
1.
Lower the grapple saw to the ground and shut off the engine.
2.
Remove the saw motor cover.
3.
Connect a suitable pressure gauge to the pressure test point
(1).
Note!
Place the pressure gauge so that the pressure easily
can be checked from the operator’s cabin when the saw
function is activated.
Important!
Never adjust any hydraulic pressures without using a
pressure gauge.
4.
Start the engine and read the feed out presure when the saw
bar is completely fed out.
Note!
Do not activate the saw function more than 5 seconds
at a time.
5.
If needed, adjust the feed out pressure.
For a proper pressure range, refer to Technical Data.
6.
Remove the pressure gauge and assemble the saw motor
cover.
Adjusting saw bar retraction
When the saw bar retraction is properly adjusted, the saw bar
should be fully retracted in 1 - 1,5 seconds.
Important!
The saw unit may be damaged if the saw bar retraction
speed is too high.
The saw bar retraction speed is adjusted with the air-pressure in
the air-tank (1).
•
If the pressure is increased, the retraction speed will be
higher.
•
If the pressure is decreased, the retraction speed will
be lower.
For a proper pressure range, refer to Technical Data
ill. 22
Adjusting saw bar feed out pressure
1
Pressure test point
2
Restrictor
1
2
ill. 23
Adjusting saw bar retraction
1
Air-tank
2
Adjustment nippel for air-pressure
1
2
