Stanley Black & Decker CR27 User Manual
CR27
HYDRAULIC
CIRCULAR SAW
Safety, OperatiOn and Maintenance
USer ManUaL
© 2011 Stanley Black & Decker, Inc.
New Britain, CT 06053
U.S.A.
30673 6/2012 Ver. 6
TABLE OF CONTENTS
WARNING
IMPORTANT
SAFETY SYMBOLS ..................................................................................................................................................4
SAFETY PRECAUTIONS .......................................................................................................................................... 5
ELECTRICAL HAZARDS ..........................................................................................................................................7
TOOL STICKERS & TAGS ......................................................................................................................................10
HOSE TYPES .......................................................................................................................................................... 11
HOSE RECOMMENDATIONS ................................................................................................................................ 12
FIGURE 1. TYPICAL HOSE CONNECTIONS .....................................................................................................12
HTMA REQUIREMENTS .........................................................................................................................................13
OPERATION ............................................................................................................................................................14
FIGURE 2. CORRECT ROTATION DIRECTION .................................................................................................15
FIGURE 3. COLLET NUT & LOCKING NUT .......................................................................................................15
FIGURE 4. FLUSH CUTTING A LIMB THAT MIGHT SPLIT OR TEAR. .............................................................. 16
FIGURE 5. FLUSH CUT ....................................................................................................................................... 16
FIGURE 6. BLADE SHARPENING ...................................................................................................................... 17
FIGURE 7. FILING ANGLE ..................................................................................................................................17
FIGURE 8. SETTING CUTTER TOOTH ANGLE ................................................................................................. 18
TOOL PROTECTION & CARE ................................................................................................................................19
TROUBLESHOOTING ............................................................................................................................................20
SPECIFICATIONS ................................................................................................................................................... 21
ACCESSORIES.......................................................................................................................................................21
CR27 PARTS ILLUSTRATION ................................................................................................................................22
CR27 PARTS LIST ..................................................................................................................................................23
To ll out a Product Warranty Recording form, and for information on your warranty,
visit Stanleyhydraulic.com and select the Warranty tab.
(NOTE: The warranty recording form must be submitted to validate the warranty).
SERVICING: This manual contains safety, operation, and routine maintenance instructions. Stanley Hydraulic
Tools recommends that servicing of hydraulic tools, other than routine maintenance, must be performed by an au-
thorized and certied dealer. Please read the following warning.
SERIOUS INJURY OR DEATH COULD RESULT FROM THE IMPROPER REPAIR OR
SERVICE OF THIS TOOL.
REPAIRS AND / OR SERVICE TO THIS TOOL MUST ONLY BE DONE BY AN
AUTHORIZED AND CERTIFIED DEALER.
For the nearest authorized and certied dealer, call Stanley Hydraulic Tools at the number listed on the back of this
manual and ask for a Customer Service Representative.
CR27 User Manual ◄ 3
SAFETY SYMBOLS
DANGER
WARNING
CAUTION
CAUTION
NOTICE
IMPORTANT
Safety symbols and signal words, as shown below, are used to emphasize all operator, maintenance and repair actions which, if not strictly followed, could result in a life-threatening situation, bodily injury or damage to equipment.
This is the safety alert symbol. It is used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible
injury or death.
This safety alert and signal word indicate an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
This safety alert and signal word indicate a potentially hazardous situation
which, if not avoided, could result in death or serious injury.
This safety alert and signal word indicate a potentially hazardous situation
which, if not avoided, could result in death or serious injury.
This signal word indicates a potentially hazardous situation which, if not avoided, may result in property damage.
This signal word indicates a situation which, if not avoided, will result in damage
to the equipment.
This signal word indicates a situation which, if not avoided, may result in damage to the equipment.
Always observe safety symbols. They are included for your safety and for the protection of the tool.
LOCAL SAFETY REGULATIONS
Enter any local safety regulations here. Keep these instructions in an area accessible to the operator and maintenance personnel.
4 ► CR27 User Manual
SAFETY PRECAUTIONS
Tool operators and maintenance personnel must always
comply with the safety precautions given in this manual
and on the stickers and tags attached to the tool and
hose.
These safety precautions are given for your safety. Review them carefully before operating the tool and before
performing general maintenance or repairs.
Supervising personnel should develop additional pre-
cautions relating to the specic work area and local
safety regulations. If so, place the added precautions in
the space provided in this manual.
The CR27 Hydraulic Circular Saw will provide safe and
dependable service if operated in accordance with the
instructions given in this manual. Read and understand
this manual and any stickers and tags attached to the
tool and hoses before operation. Failure to do so could
result in personal injury or equipment damage.
• Operator must start in a work area without bystand-
ers. The operator must be familiar with all prohibited
work areas such as excessive slopes and dangerous terrain conditions.
• Establish a training program for all operators to en-
sure safe operation.
• Do not operate the tool unless thoroughly trained or
under the supervision of an instructor.
• Always wear safety equipment such as goggles,
ear, head protection, and safety shoes at all times
when operating the tool.
• Do not overreach. Maintain proper footing and bal-
ance at all times.
• Do not inspect or clean the tool while the hydraulic
power source is connected. Accidental engagement
of the tool can cause serious injury.
• Supply hoses must have a minimum working pres-
sure rating of 2500 psi/175 bar.
• Be sure all hose connections are tight.
• The hydraulic circuit control valve must be in the
OFF position when coupling or uncoupling the tool.
Wipe all couplers clean before connecting. Use only
lint-free cloths. Failure to do so may result in damage to the quick couplers and cause overheating of
the hydraulic system.
• Do not operate a damaged, improperly adjusted, or
incompletely assembled tool.
• Do not operate the tool at oil temperatures above
140 °F/60 °C. Operation at higher oil temperatures
can cause operator discomfort and may damage the
tool.
• To avoid personal injury or equipment damage, all
tool repair, maintenance and service must only be
performed by authorized and properly trained personnel.
• Do not exceed the rated limits of the tool or use the
tool for applications beyond its design capacity.
• Always keep critical tool markings, such as labels
and warning stickers legible.
• Always replace parts with replacement parts recommended by Stanley Hydraulic Tools.
• Check fastener tightness often and before each use
daily.
• Do not wear loose tting clothing when operating the
tool.
• Keep all parts of your body away from the rotating
saw blade.
• Keep the saw blade off all surfaces when starting
the circle saw.
• Do not reverse saw blade rotation direction by
changing uid ow direction.
• Without the use of non-conductive accessories, this
tool is not for use near energized electric lines. Failure to comply with this warning could result in serious personal injury.
• Never cock, jam or wedge the saw blade during operation.
• Eye injury and cutting or severing of body parts is
possible if proper procedures are not followed.
CIRCULAR SAW SPECIFIC SAFETY
PRECAUTIONS
• Do not rely exclusively upon the safety devices built
into the saw. As a circle saw user, several steps
must be taken to keep your cutting jobs free from
accident or injury.
• Ensure the saw blade is correctly mounted and
tightened before each use.
• Keep a good rm grip on the pole saw with both
hands. Place your right hand on the rear handle and
your left hand on the outer tube assembly when op-
erating. Use a rm grip with your thumbs and ngers
encircling the saw handle and outer tube assembly.
A rm grip helps keep control of the saw. Do not let
go.
CR27 User Manual ◄ 5
SAFETY PRECAUTIONS
• Ensure that the direction of rotation of the saw blade
is as prescribed in this manual.
• Cut at the rated operating speeds (gpm).
• Operate the saw at “no load” for 30 seconds in a
safe position and ensure there is no excessive vibration or other defects detected. If considerable vibration or other defects are detected, stop operation
of the tool immediately and determine the cause. Do
not use the tool until the defect is corrected.
• If the tool is dropped with a saw blade installed, the
saw blade should be examined.
• Make sure you’re well rested and mentally alert before operating the saw.
• Do not start cutting until you have a clear work area,
secure footing and a planned drop area for falling
branches.
• Keep all parts of the body away from the saw during
operation.
• Carry the saw with the unit de-energized.
• Do not operate a pole saw that is damaged, improp-
erly adjusted or not completely and securely assembled. Make sure the saw blade stops moving when
the control trigger is released.
• Use extreme caution when cutting small branches.
Twigs may catch the saw blade and be whipped toward the operator or pull the operator off balance.
• Only use saw blades manufactured by Stanley Hydraulic Tools. Stanley assumes no responsibility for
failure in equipment, accidental damage or accidental injury as a result of the use of saw blades not
manufactured by Stanley Hydraulic Tools.
• Always assure the saw blade is sharp. Do not try to
use the tool with a dull saw blade.
• Keep the handle dry, clean and free of hydraulic
uid.
• When using tools near energized transmission lines,
make sure to use only hoses labeled and certied
non-conductive.
• Turn off the power unit or move the hydraulic control
valve to neutral before setting the pole saw down.
• Know the location of buried or covered electrical
services before starting work.
• To avoid personal injury or equipment damage, all
tool repair, maintenance and service must only be
performed by authorized and properly trained per-
sonnel.
6 ► CR27 User Manual
ELECTRICAL HAZARDS
The following guidelines must be followed to prevent
accidental contact with overhead electrical conductors
and/or communication wires and cables. (Ref. ANSI
Z133.1-1982)
All overhead conductors and all communications wires
and cables are considered to be energized with potentially fatal voltages and must never be touched either directly or indirectly. Accidental contact with any overhead
conductors or communication wires and cables can result in death or serious injury.
A close inspection shall be made by the tool operator and by the tool operator’s supervisor to determine
whether an electrical conductor passes through the tree
or passes within reaching distance of the tool operator.
Only qualied tool operators shall be assigned to the
work if an electrical hazard exists.
A second qualied tool operator must be within normal
voice communication during line clearing operations
aloft when the tool operator approaches closer than 10
feet (3 m) to any conductor or electrical apparatus energized in excess of 750 volts, or when roping is required
to remove the branches or limbs.
Tool operators must maintain the following clearances
from energized conductors:
Voltage Range
(phase-to-phase) (kV)
2.1–15.0 2 ft 0 in./0.6 m
15.1–35.0 2 ft 4 in./0.7 m
35.1–46.0 2 ft 6 in./0.75 m
46.1–72.5 3 ft 0 in./0.9 m
72.6–121.0 3 ft 4 in./1.0 m
138.0–145.0 3 ft 6 in./1.05 m
161.0–169.0 3 ft 8 in./1.1 m
230.0–242.0 5 ft 0 in./1.5 m
345.0–362.0 7 ft 0 in./2.1 m
500.0–552.0 11 ft 0 in./3.35 m
700.0–765.0 15 ft 0 in./4.55 m
All other tree workers must maintain a minimum clearance of 10 feet (3 meters) from energized conductors
rated 50 kV phase-to-phase or less. Conductors rated
over 50 kV phase-to-phase require a minimum clearance of 10 feet plus 4/10 of an inch (3 meters plus 10
mm) for each kilovolt over 50 kV.
Minimum Working
Distance
When a lifting device contacts an electrical conductor,
the truck supporting the device is considered to be energized and contact with the truck must be avoided except
when emergency rescue procedures are being carried
out. Emergency rescue should only be attempted by
properly trained personnel familiar with electrical hazards.
Storm work and emergency conditions create special
hazards. During these conditions, only authorized tool
operators shall perform any tree operation.The follow-
ing guidelines must be followed to prevent accidental
contact with overhead electrical conductors and/or communication wires and cables. (Ref. ANSI Z133.1-2000)
Working in Proximity to Electrical Hazards:
An inspection shall be made by a qualied arborist to
determine whether an electrical hazard exists before
climbing, or otherwise entering, or performing work in
or on a tree.
Only qualied line-clearance arborists or qualied line-
clearance arborist trainees shall be assigned to work
where an electrical hazard exists. Qualied line-clearance arborist trainees shall be under the direct supervi-
sion of qualied line-clearance arborist.
A second qualied line-clearance arborists or line-clear-
ance arborist trainees shall be within vision or voice
communication during line-clearing operations aloft
when line-clearance arborists or line-clearance arborist
trainees must approach closer than 10 feet (3.05 meters) to any energized electrical conductor in excess of
750 volts (primary conductor) or when:
1. Branches or limbs being removed cannot rst be
cut (with a pole pruner/pole saw) to sufciently clear
electrical conductors, so as to avoid contact.
2. Roping is required to remove branches or limbs
from such electrical conductors. This does not apply to individuals working on behalf of, or employed
by, electrical system owners/operators engaged in
line-clearing operations incidental to their normal
occupation.
Qualied line-clearance arborists and line-clearance
arborist trainees shall maintain minimum approach distances from energized electrical conductors in accordance with Table 1.
All other arborists shall maintain a minimum approach
distance from energized electrical conductors in accordance with Table 2.
Branches hanging on an energized electrical conductor
shall be removed using non-conductive equipment.
CR27 User Manual ◄ 7
ELECTRICAL HAZARDS
Table 1. Minimum approach distances from energized conductors for qualied line-clearance arborists and
qualied line-clearance arborist trainees.
Nominal
Voltage
kV phase-to-phase
Includes 1910.269
elevation factor, sea
level to 5000 ft1)
ft-in m ft-in m ft-in m
Includes 1910.269
elevation factor,
5001–10,000 ft1)
Includes 1910.269
elevation factor,
10,000–14,000 ft1)
0.05–1.0 Avoid contact Avoid contact Avoid contact
1.1–15.0 2-04 0.71 2-08 0.81 2-10 0.86
15.1–36.0 2-09 0.84 3-02 0.97 3-05 1.04
36.1–46.0 3-00 0.92 3-05 1.04 3-09 1.14
46.1–72.5 3-09 1.14 4-03 1.30 4-07 1.40
72.6–121.0 4-06 1.37 5-02 1.58 5-07 1.70
138.0–145.0 5-02 1.58 5-11 1.80 6-05 1.96
161.0–169.0 6-00 1.83 6-10 2.08 7-05 2.26
230.0–242.0 7-11 2.41 9-00 2.75 9-09 2.97
345.0–362.0 13-02 4.02 15-00 4.58 16-03 4.96
500.0–550.0 19-00 5.80 21-09 6.63 23-06 7.17
765.0–800.0 27-04 8.34 31-03 9.53 33-10 10.32
1)
Exceeds phase-to-ground; elevation factor per 29 CFR 1910.269.
Table 2. Minimum approach distances to energized conductors for persons other than qualied line-clearance arborists and qualied line-clearance arborist trainees.
Nominal Voltage
kV phase-to-phase
1)
Distance
ft-in m
0.0–1.0 10-00 3.05
1.1–15.0 10-00 3.05
15.1–36.0 10-00 3.05
36.1–50.0 10-00 3.05
50.1–72.5 10-09 3.28
72.6–121.0 12-04 3.76
138.0–145.0 13-02 4.00
161.0–169.0 14-00 4.24
230.0–242.0 16-05 4.97
345.0–362.0 20-05 6.17
500.0–550.0 26-08 8.05
785.0–800.0 35-00 10.55
1)
Exceeds phase-to-ground.
8 ► CR27 User Manual
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