Operation - Stanley CS11 User Manual

PREOPERATION PROCEDURES
HYDRAULIC SYSTEM REQUIREMENTS
The hydraulic system should provide a flow of 10-14
gpm/38-53 Ipm 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 (mini-
mum operating tem peratures).
The hydraulic system should have sufficient heat rejec-
tion capacity to limit the maximum oil temperature to
140° F/60° C at the maximum ex pected ambient tem-
perature. 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 mi-
cron filtration. It is recommended that filter elements be
sized for a flow of at least 30 gpm/114 Ipm for cold tem-
perature 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. Petro-
leum 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 flowmeter and pressure gauge,
check that the hydraulic power source develops a
flow of 10-14 gpm/38-53 Ipm 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 or quick disconnects. It is good
practice to connect return hoses first and discon-
nect them last to minimize or avoid trapped pressure
within the tool.

OPERATION

3. Observe the arrow on the couplers to ensure that
the flow is in the proper direction. The female cou-
pler 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 in-
crease 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. Dif ferences in the terrain, vegetation, and
type of wood will make this infor mation more or less val-
id for particu lar areas. For advice on specific woodcut-
ting 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 direc-
tion 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 electro-
cution, 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.
CS11 User Manual ◄ 13