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The Power Beyond Port can connect to another valve for conveyor and clamp, or must go to the filter and tank. The
return hose can be #12 or 3/4" diameter for the first two feet. If a longer hose is required it must be #16 or 1" up to
twenty feet. If the total return hose length is greater than thirty three feet #20 or 1 1/4" hose should be used. The
filter must be rated for 26 GPM plus any additional pump flowing into it. The saw motor should run between 4000
RPM and 5500 RPM. At this speed the pressure at the return to filter connection should not exceed 80 psi when the
saw motor is running. We do not recommend using quick disconnects but if you choose to use quick disconnects in
the tank line, first consult the manufacture to determine the correct size to keep the back pressure low enough in
cold temperatures. Failure to properly size the hose and filter or properly connect the return hose to a filter and
tank will shorten the motor shaft seal life and will not be covered by warranty.
Chain Tension and Sharpening
Figure 5 shows the chain tensioning screw. A #2 or #3 Phillips screwdriver is required to turn the tension screw. With
the supplied saw bar, correct tension is when the cutters come off the rails roughly 1/8" with a tug of finger
pressure. Refer to the Oregon Mechanical Timber Harvesting Handbook for more tensioning information and
sharpening information.
Fig. 5
7
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