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CR27 User Manual ◄ 15
OPERATION
13
OPERATION
BLADE INSTALLATION
1. Handle the saw blade with care. The cutting edges are
sharp and careless handling could result in injury.
2. Install the blade over the motor shaft and onto the fi xed
collar so that the points of the teeth on the blade are facing
clockwise as viewed from the front of the motor (see fi gure
1).
3. Install the moveable collar followed by the collet nut (see
fi gure 2.) Tighten the collet nut hard (not wrist tight).
4. Install the locking nut with internal taper facing toward
the collet nut and tighten it hard against the collet nut.
5. As a fi nal tightening procedure, with a wrench on each
of the nuts, tighten the locking nut one half wrench fl at
further.
Figure 1. Correct Rotation Direction
Figure 2. Collet Nut & Locking Nut
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 hose couplers on the saw. It is a good practice to con-
CLOCKWISE ROTATION
nect the return hose fi rst and disconnect it last to minimize
or avoid trapped pressure within the saw motor.
3. Observe fl ow indicators stamped on hose couplers to
be sure that oil will fl ow in the proper direction. The female
coupler is the inlet coupler.
NOTE:
The pressure increase in uncoupled hoses left in the
sun may result in making them diffi cult to connect.
When possible, connect the free ends of operating
hoses together.
OPERATING PROCEDURES
Observe all safety precautions.
DO NOT OPERATE A CIRCLE SAW UNLESS YOU HAVE
BEEN SPECIFICALLY TRAINED TO DO SO.
Keep all parts of the body away from the saw blade during
operation of the tool.
Carry the saw with the unit de-energized and the blade
away from the body.
Always connect the hoses to the tool hose couplers before
energizing the power source.
Do not operate a circle saw that is damaged, improperly
adjusted or is not completely and securely assembled.
Keep the saw and handles clean and free of oil and con-
taminates.
Do not hang the saw on utility wires or cables.
Do not leave the saw hanging in a tree.
Do not leave cut branches in a tree.
Branches bent under tension are considered hazardous.
Do not allow binding of the saw blade.
The saw blade will continue to spin for up to 5 seconds or
more after releasing the ON/OFF trigger. During this “coast
down” time, contact with the saw blade may result in severe
personal injury. Refer to page 2. On early model saws the
"coast down" time will be up to 15 seconds.
Use extreme caution when sawing small size brush and
saplings. Slender material may catch in the saw blade and
be thrown toward the operator.
LOCKING NUT
COLLET NUT
Figure 2. Correct Rotation Direction
13
OPERATION
BLADE INSTALLATION
1. Handle the saw blade with care. The cutting edges are
sharp and careless handling could result in injury.
2. Install the blade over the motor shaft and onto the fi xed
collar so that the points of the teeth on the blade are facing
clockwise as viewed from the front of the motor (see fi gure
1).
3. Install the moveable collar followed by the collet nut (see
fi gure 2.) Tighten the collet nut hard (not wrist tight).
4. Install the locking nut with internal taper facing toward
the collet nut and tighten it hard against the collet nut.
5. As a fi nal tightening procedure, with a wrench on each
of the nuts, tighten the locking nut one half wrench fl at
further.
Figure 1. Correct Rotation Direction
Figure 2. Collet Nut & Locking Nut
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 hose couplers on the saw. It is a good practice to con-
CLOCKWISE ROTATION
nect the return hose fi rst and disconnect it last to minimize
or avoid trapped pressure within the saw motor.
3. Observe fl ow indicators stamped on hose couplers to
be sure that oil will fl ow in the proper direction. The female
coupler is the inlet coupler.
NOTE:
The pressure increase in uncoupled hoses left in the
sun may result in making them diffi cult to connect.
When possible, connect the free ends of operating
hoses together.
OPERATING PROCEDURES
Observe all safety precautions.
DO NOT OPERATE A CIRCLE SAW UNLESS YOU HAVE
BEEN SPECIFICALLY TRAINED TO DO SO.
Keep all parts of the body away from the saw blade during
operation of the tool.
Carry the saw with the unit de-energized and the blade
away from the body.
Always connect the hoses to the tool hose couplers before
energizing the power source.
Do not operate a circle saw that is damaged, improperly
adjusted or is not completely and securely assembled.
Keep the saw and handles clean and free of oil and con-
taminates.
Do not hang the saw on utility wires or cables.
Do not leave the saw hanging in a tree.
Do not leave cut branches in a tree.
Branches bent under tension are considered hazardous.
Do not allow binding of the saw blade.
The saw blade will continue to spin for up to 5 seconds or
more after releasing the ON/OFF trigger. During this “coast
down” time, contact with the saw blade may result in severe
personal injury. Refer to page 2. On early model saws the
"coast down" time will be up to 15 seconds.
Use extreme caution when sawing small size brush and
saplings. Slender material may catch in the saw blade and
be thrown toward the operator.
LOCKING NUT
COLLET NUT
Figure 3. Collet Nut & Locking Nut
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 hose couplers on the saw. It is a good prac-
tice to connect the return hose rst and disconnect
it last to minimize or avoid trapped pressure within
the saw motor.
3. Observe ow indicators stamped on hose couplers
to be sure that oil will ow in the proper direction.
The female coupler is the inlet coupler.
NOTE:
The pressure increase in uncoupled hoses left in the
sun may result in making them difcult to connect.
When possible, connect the free ends of operating
hoses together.
OPERATING PROCEDURES
Observe all safety precautions.
• DO NOT OPERATE A CIRCLE SAW UNLESS YOU
HAVE BEEN SPECIFICALLY TRAINED TO DO
SO.
• Keep all parts of the body away from the saw blade
during operation of the tool.
• Carry the saw with the unit de-energized and the
blade away from the body.
• Always connect the hoses to the tool hose couplers
before energizing the power source.
• Do not operate a circle saw that is damaged, im-
properly adjusted or is not completely and securely
assembled.
• Keep the saw and handles clean and free of oil and
contaminates.
• Do not hang the saw on utility wires or cables.
• Do not leave the saw hanging in a tree.
• Do not leave cut branches in a tree.
• Branches bent under tension are considered haz-
ardous.
• Do not allow binding of the saw blade.
• The saw blade will continue to spin for up to 5 sec-
onds or more after releasing the ON/OFF trigger.
During this “coast down” time, contact with the saw
blade may result in severe personal injury. Refer to
page 2. On early model saws the “coast down” time
will be up to 15 seconds.
• Use extreme caution when sawing small size brush
and saplings. Slender material may catch in the saw
blade and be thrown toward the operator.
• Keep the saw blade away from all surfaces when
starting rotation of the blade.
• Do not reverse blade rotation direction by changing
oil ow direction. The saw is designed to operate in
only one direction.
• Do not use the saw around energized transmission
lines.
• Do not inspect, clean or repair the saw with the pow-
er source operating or with operating pressure at the
saw. Accidental engagement of the tool can cause
serious injury.
• Do not operate the saw at oil temperatures above
140 °F/60 °C. Operation at higher temperatures can
cause higher than normal temperatures at the tool
which can cause operator discomfort.
• After releasing the ON/OFF trigger, be certain that
the saw blade has come to a complete stop before
placing the saw on the ground, lowering the saw into
the truck’s bucket, storing the saw or contacting the
blade in any way. Failure to observe these precau-
tions may result in severe personal injury.
• The saw operator must keep other workers and by-
standers clear of the work area, including the area
into which cut limbs or debris fall. Failure to heed
this precaution can result in severe personal injury.