CS11 Service
Manual ◄ 13
PREPARATION PROCEDURES
HYDRAULIC SYSTEM REQUIREMENTS
The hydraulic system should provide a flow of 10-14
GPM/38-53 LPM at an operating pressure of 1500-2000
psi/105-140 bar. Recommended relief valve settings are
2100-2250 psi/145-155 bar.
The system should have no more than 250 psi/17 bar
backpressure measured at the tool end of the operating
hoses. The system conditions for measurement are
at maximum fluid viscosity of 400 ssu/82 centistokes
(minimum operating tem peratures).
The hydraulic system should have sufficient heat
rejection capacity to limit the maximum oil temperature
to 140° F/60° C at the maximum ex pected ambient
temperature. The recommended minimum cooling
capacity is 7 hp/5.22 kW at a 40 °F/22 °C difference
between ambient temperature and oil temperature.
The hydraulic system should have a minimum of 25
micron filtration. It is recommended that filter elements
be sized for a flow of at least 30 GPM/114 LPM for cold
temperature startup and maxi mum dirt holding capacity.
The hydraulic fluid used should have a vis cosity between
100 and 400 ssu/20 and 82 cen tistokes at the maximum
and minimum expected operating temperatures.
Petroleum based hydraulic fluids with antiwear properties
and a viscosity index over 140 ssu/28 centistokes will
meet the recom mended requirements over a wide range
of oper ating temperatures.
The recommended hose size is .625-inch/16 mm I.D. up
to 50 ft/15 m long and .750-inch/20 mm I.D. minimum up
to 100 ft/30 m long.
CHECK POWER SOURCE
1.
Using a calibrated flow meter and pressure gauge,
check that the hydraulic power source develops
a flow of 10-14 GPM/38-53 LPM at 1500 -2000
psi/105-140 bar.
2.
Make certain that the hydraulic power source is
equipped with a relief valve set to open at 2100 -
2250 psi/145-155 bar.
CONNECT HOSES
1.
Wipe all hose couplers with a clean, lint-free cloth
before making connections.
2.
Connect the hoses from the hydraulic power source
to the tool fittings. Connect return hoses first and
disconnect them last to minimize trapped pressure
within the tool.
3. Observe the arrow on the couplers to ensure that the
flow is in the proper direction. The female coupler on
the tool hose is the inlet (pressure) coupler.
4.
Move the hydraulic circuit control valve to the “ON”
position to operate the tool.
Note: If uncoupled hoses are left in the sun, pressure
increase inside the hose may make them difficult to
connect. Whenever possible, connect the free ends
of the hoses together.
OPERATING PROCEDURES
The following are general wood cut ting procedures and
techniques. Diff erences in the terrain, vegetation and
type of wood will make this infor mation more or less valid
for particu lar areas. For advice on specific woodcutting
problems or techniques for your area, consult your local
STANLEY representative or your county agent. They
can often provide infor mation that will make your work
safer and more productive.
CUTTING TIPS
1.
Check the lean of the tree. Tie a weight to a piece
of string about 2 feet long. Hang the weight in your
line of sight. The string is a good vertical line to help
you judge the lean of the tree. The tree should fall
the way it is leaning. Trees that are straight (leaning
no more than 5 degrees) gener ally can be felled in
any direction.
2.
Avoid felling across another tree, log, rocks, gully or
ridge. Do not fell straight uphill or down hill. Fell the
tree diagonally to the hill. Consider the wind direction
and velocity. Do not attempt cutting in strong winds.
3. Check the weight distribution. A tree is heavier on
the side with the most limbs. It will try to fall on its
heavy side. Trim a few limbs to “balance” the tree.
4.
Clear the work area. You need a clean area all
around the tree for good footing. Get every thing
out of the area where the tree will fall. Do not cut
trees near structures. Because of the danger of
electrocution, use extreme care when cutting trees
near power lines.
5.
Before starting the cut, prepare your escape path.
Make sure the escape path is clear of brush and
branches. The escape path should be at an angle
away from the direction of fall.
6. The saw chain should cut with very little pres sure
applied to the handle. If you have to force the saw
to cut or if the cut is not straight, cease cutting
immediately to prevent further saw chain and bar
damage. See the Maintenance and Adjustments
section of this manual for chain replacement or
adjustment procedures.
7.
Underwater models require daily preventive
maintenance.
OPERATION
