Greenlee LRF 75 Manuel utilisateur
52020553 REV 7 ©2011 GreenleeTextron Inc. 2/11
Long-Reach Chain Saws
Foam-filled
LRF 75 and 88
INSTRUCTION MANUAL
Español ............................... 23
Français .............................. 45
Deutsch............................... 67
Italiano ................................ 89
Service .............................. 111
Read and understand all of the instructions and
safety information in this manual before operating
or servicing this tool.
Register this product at www.greenlee.com
Serial Codes AMT, AMS, GLZ, and GLY
Long-Reach Chain Saws (Foam-filled)
Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
2
Table of Contents
Description ..................................................................... 2
Safety ............................................................................. 2
Purpose .......................................................................... 2
Other Publications.......................................................... 2
Important Safety Information ......................................3-6
Identication................................................................... 7
Specications..............................................................8-9
Chain Saw Basics ...................................................10-12
Setting the Super Spool ............................................... 13
Hoses and Fittings ....................................................... 13
Hose Connections........................................................ 13
Typical Setup................................................................ 13
Operation.................................................................14-15
Maintenance............................................................16-20
Troubleshooting.......................................................21-22
Español......................................................................... 23
Français........................................................................ 45
Deutsch ........................................................................ 67
Italiano.......................................................................... 89
Service
Disassembly .......................................................... 111
Assembly ........................................................112-113
Illustrations ..........................................................114-118
Parts List .............................................................119-120
Description
Long-reach chain saws are hydraulically powered cutting
tools intended for general tree trimming from the ground
or from an aerial device.
Greenlee Utility’s patented Super Spool™ design allows
the tool to be used with either open-center or closed-
center hydraulic systems. The dielectric properties of the
berglass pole reduce the chance of electric shock when
the saw is used near energized electrical lines. Other
features include an anti-kickback chain, a fully covered
sprocket guard, a hand-stop safety collar, a trigger inter-
lock and a trigger guard.
Super Spool is protected by U.S. Patent No. 4,548,229.
KEEP THIS MANUAL
Safety
Safety is essential in the use and maintenance of
Greenlee Utility tools and equipment. This instruction
manual and any markings on the tool provide informa-
tion for avoiding hazards and unsafe practices related to
the use of this tool. Observe all of the safety information
provided.
Purpose
This manual is intended to familiarize all personnel
with the safe operation, specications and parts, and
maintenance procedures for the following Greenlee
Utility hydraulic tools:
52020556 LRF 75 Serial Codes AMT and GLZ
52020558 LRF 88 Serial Codes AMS and GLY
Keep this manual available to all personnel.
Replacement manuals are available upon request
at no charge.
Other Publications
Tool Owners/Users
SAE Standard J1273 (Hose and Hose Assemblies):
Publication 99930323
All specications are nominal and may change as design
improvements occur. Greenlee Textron Inc. shall not be liable for
damages resulting from misapplication or misuse of its products.
Super Spool is a trademark of Greenlee Textron Inc.
Long-Reach Chain Saws (Foam-filled)
Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
3
IMPORTANT SAFETY INFORMATION
SAFETY
ALERT
SYMBOL
This symbol is used to call your attention to hazards
or unsafe practices which could result in an injury or
property damage. The signal word, dened below,
indicates the severity of the hazard. The message
after the signal word provides information for
preventing or avoiding the hazard.
Immediate hazards which, if not avoided, WILL result
in severe injury or death.
Hazards which, if not avoided, COULD result in
severe injury or death.
Hazards or unsafe practices which, if not avoided,
MAY result in injury or property damage.
Read and understand all of the
instructions and safety information
in this manual before operating or
servicing this tool.
Failure to observe this warning could
result in severe injury or death.
Electric shock hazard:
• This tool was tested to meet
OSHA 1910.269 (dry test) when
manufactured. It must be properly
cleaned and maintained to ensure
continued non-conductive prop-
erties. When using this unit near
energized electrical lines, use only
certied non-conductive hoses
and proper personal protective
equipment.
• Keep berglass extension clean
and dry when working around
energized electrical lines.
Accumulated oil or dirt reduces the
insulating properties of the tool.
• When using this tool near ener-
gized electrical lines, observe the
instructions provided in DIN EN
50110-1. The signicant sections
of this standard are provided in the
Operation section of this manual.
Failure to observe these warnings
could result in severe injury or death.
Skin injection hazard:
• Do not use hands to check for leaks.
• Do not hold hose or couplers while
the hydraulic system is pressurized.
• Depressurize the hydraulic system
before servicing.
Oil under pressure easily punctures
skin causing serious injury, gangrene
or death. If you are injured by
escaping oil, seek medical attention
immediately.
Long-Reach Chain Saws (Foam-filled)
Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
4
IMPORTANT SAFETY INFORMATION
Before operating the saw, read and
understand the following explana-
tions in this manual:
• Pull-In
Pull-in can occur when the blade
at the bottom of the bar contacts
a foreign object, such as a nail, or
when the blade is pinched in the
cut.
The saw will be suddenly and
forcefully pulled away from the
operator.
• Push-back
Push-back can occur when
the blade at the top of the bar
contacts a foreign object, such
as a nail, or when the blade is
pinched in the cut.
The saw will be suddenly and
forcefully pushed back toward the
operator.
• Kickback
Kickback can occur when the
chain at the guide bar tip contacts
anything. The bar of the saw will
travel upward and back, toward
the operator.
Failure to observe this warning could
result in severe injury or death.
Wear a hard hat when using this tool.
Failure to observe this warning could
result in severe injury or death.
Wear eye protection when operating
or servicing this tool.
Failure to wear eye protection could
result in serious eye injury from ying
debris or hydraulic oil.
Wear hearing protection when using
this tool.
Long-term exposure to high noise
levels could result in hearing loss.
Wear foot protection when using this
tool.
Failure to observe this warning could
result in serious injury.
Some types of timber can produce
hazardous dust when cut. Wear
a dust mask to prevent breathing
hazardous dust.
Failure to observe this warning could
result in temporary breathing dif-
culty or serious injury.
Wear protective gloves when using
this tool.
Failure to observe this warning could
result in serious injury.
Long-Reach Chain Saws (Foam-filled)
Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
5
IMPORTANT SAFETY INFORMATION
Do not disconnect tool, hoses or ttings while the
power source is running or if the hydraulic uid is
hot. Hot hydraulic uid could cause serious burns.
Do not reverse hydraulic ow. Operation with
hydraulic ow reversed could cause tool malfunc-
tion. Connect the pressure hose and tank hose to the
proper ports.
• Use this tool for trimming or pruning trees only.
Any other use may result in injury or property
damage.
• Inspect tool before use. Replace any worn,
damaged or missing parts. A damaged or improp-
erly assembled tool can malfunction, injuring
nearby personnel.
• Inspect hydraulic hoses and couplings every
operating day. Repair or replace if leakage, crack-
ing, wear or damage is evident. Damaged hoses
or coupling could fail resulting in injury or property
damage.
• Ensure that all bystanders and unnecessary
personnel are clear of the work area when operat-
ing the tool. Nearby personnel may be injured by
falling debris.
Failure to observe these precautions may result in
injury or property damage.
• Do not change accessories, inspect, adjust or
clean the tool or sharpen the chain when it is
connected to a power source. Accidental startup
could result in serious injury.
• Keep the handles clean, dry and free of hydraulic
uid.
• Maintain a rm grip on tool, using both hands with
thumbs and ngers encircling the handles at all
times. Serious injury could result if an operator
does not control the tool.
• Do not lock the trigger in the Power-ON position.
Operator cannot stop tool when trigger is locked.
• Do not remove or modify the tool’s safety trigger.
Accidental startup could result in serious injury.
• Wear protective gloves when handling or adjusting
the chain. The chain can cut even when stationary.
Failure to observe these warnings could result in
severe injury or death.
Saw body, bar, blade and other
components will be hot during and
after use. Use care when handling
the saw. Hot surfaces can cause
serious burns.
Failure to observe this warning could
result in severe injury or death.
To transport the chain saw:
• Allow the chain to stop rotating.
• Wait for the chain to cool.
• Use an appropriate guide bar sheath or scabbard.
• Carry the saw with the guide bar toward the rear.
Failure to observe these warnings could result in
severe injury or death.
Long-Reach Chain Saws (Foam-filled)
Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
6
IMPORTANT SAFETY INFORMATION
• Check the operation of the automatic oiler
frequently. See Checking and Setting the
Automatic Chain Oiler in this manual.
• Check the chain frequently for proper tension and
sharpness. Tension and sharpen as necessary.
See the instructions under Saw Chain and Bar
Maintenance.
• Check the uid level of the power source reservoir
frequently. The automatic oiler uses hydraulic uid
to lubricate the bar and chain, and will cause the
uid level to drop.
Procedure for disconnecting hydraulic hoses, ttings
or components:
1. Move the ow lever on the hydraulic power
source to the OFF position.
2. Stop the power source.
3. Follow the sequence under Disconnecting Hoses
to prevent pressure buildup. In case some
pressure has built up, loosen hoses, ttings or
components slowly.
Emergency stop procedure:
1. Release the trigger.
2. Shut off the hydraulic power source.
Note: Keep decals clean and legible. Replace decals
when necessary.
Hydraulic oil can cause skin irritation.
• Handle the tool and hoses with care to prevent
skin contact with hydraulic oil.
• In case of accidental skin contact with hydraulic
oil, wash the affected area immediately to remove
the oil.
Failure to observe these precautions may result in
injury.
Vibration hazard:
Apply just enough pressure to do the work. Applying
excess pressure to the tool can cause operator
discomfort or temporary numbness.
Failure to observe this precaution may result in injury.
Long-Reach Chain Saws (Foam-filled)
Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
7
Identification
Long-Reach Chain Saws
1. Saw Chain
2. Automatic Oiler
3. Hydraulic Gear Motor
4. Serial Number
5. Handle
6. Return Port
7. Pressure Port
8. Trigger
9. Trigger Interlock Latch
10. Trigger Guard or Trigger Strap
11. Tube Assembly, Foam-lled
12. Hand Stop
13. Saw Head
14. Guide Bar
1
14
13
12
11
2
3
889 mm (35")
4
5
6
7
8
9
10
Long-Reach Chain Saws (Foam-filled)
Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
8
Specifications
Long-Reach Chain Saw
Type of Hydraulic System.............................Open-center
or closed-center
Hydraulic Ports
Pressure ...............................9/16–18 SAE O-ring Boss
Return.....................................3/4–16 SAE O-ring Boss
Cutting Capacity......................................... 330 mm (13")
Chain Speed @ 30 l/min (8 gpm)................... 1280 m/min
(4200 ft/min)
Sound Power Level ............................................ 106 Lwa
Vibration ............................................................4.88 m/s2
Mass/Weight
52020556 ............................................ 4.06 kg (9.03 lb)
52020558 ............................................ 4.21 kg (9.36 lb)
Length
52020556 ........................................... 1890 mm (74.5")
52020558 ........................................... 2200 mm (86.5")
Width (at motor)....................................... 108 mm (4.25")
Depth of Body (at handle) ............................ 152 mm (6")
Saw Chain
When replacement is necessary, select a saw chain that:
• meets applicable industrial safety code specications
• is rated for 1280 m/min (4200 ft/min)
Failure to observe this warning could result in severe
injury or death.
Pitch ..................................................... 8.26 mm (0.325")
Gauge................................................... 1.47 mm (0.058")
Long-Reach Chain Saws (Foam-filled)
Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
9
Specifications (cont’d)
Hydraulic Power Source
Do not exceed the following hydraulic power source
maximums:
• Hydraulic ow: 30.3 l/min (8 gpm)
• Pressure relief setting: 138 bar (2000 psi)
• Back pressure: 13.8 bar (200 psi)
Failure to observe this warning could result in severe
injury or death.
Type of Hydraulic System.....Open-center or closed-center
Flow
Minimum ..........................................18.9 l/min (5 gpm)
Recommended.................................22.7 l/min (6 gpm)
Maximum .........................................30.3 l/min (8 gpm)
Filtration............................................ 10 micron (nominal)
Pressure Relief Setting ........................138 bar (2000 psi)
Back Pressure (maximum)* ..................13.8 bar (200 psi)
*
13.8 bar (200 psi) is the maximum agreed standard
back
pressure for the HTMA (Hydraulic Tool Manufacturers
Association). Greenlee Utility tool will operate satisfac-
torily at this standard.
1. Maximum hydraulic uid temperature must not
exceed 60 °C (140 °F). A sufcient oil cooling
capacity is needed to limit the hydraulic uid
temperature.
2. Hydraulic ow must not exceed 30.3 l/min (8 gpm).
Install a ow meter in the return line to measure the
rate of hydraulic ow before using the tool.
3. Pressure relief valve setting must not exceed 138
bar (2000 psi) at your tool’s maximum ow. Locate
the pressure relief valve in the supply circuit to limit
excessive hydraulic pressure to the tool.
Hydraulic Schematic
FILTER
(10 micron)
COOLER
RELIEF
VALVE
138 bar
(2000 psi)
CONTROL
VALVE FLOW METER
T
PTOOL
RESERVOIR
PUMP
POWER SOURCE
Recommended Hydraulic Fluids
Use any non-detergent, petroleum-based hydraulic
uid which meets the following specications or HTMA
specications.
S.U.S. @:
38 °C (100 °F)...............................................140 to 225
99 °C (210 °F)............................................40 minimum
Flash Point................................170 °C (340 °F) minimum
Pour Point..................................-34 °C (-30 °F) minimum
Long-Reach Chain Saws (Foam-filled)
Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
10
Kickback
Kickback is much more hazardous than pull-in or push-
back. When kickback happens, the entire saw may
rotate suddenly and forcefully. The bar of the saw may
quickly travel upward and back, toward the operator.
Kickback can occur when the blade at the guide bar
tip contacts anything while the chain is rotating. Some
causes for kickback are:
• using the guide bar tip for cutting.
• contacting a nail or other metal object when cutting.
• accidental contact when cutting more than one
branch at a time.
Using Guide Bar Tip for Cutting
Contact with Metal Objects
Metal
Objects
Cutting More Than One Branch at a Time
Chain Saw Basics
This section introduces some basic principles of chain
saw use: Hazard Prevention, Compression and Tension.
HAZARD PREVENTION
The cutting action of this chain saw is performed by a
chain-type blade driven at high speed by a powerful
hydraulic motor. When used carefully and properly, the
chain saw is a highly effective cutting tool.
When used improperly, or when anything interferes with
the normal rotation of the blade, the operator could
very suddenly and very quickly lose control of the saw.
Such loss of control can result in harm to the operator.
The three terms that describe loss of control are pull-in,
push-back, and kickback.
Pull-In
Pull-in can occur when the blade at the bottom of the
bar is doing the cutting. If the blade is suddenly pinched
in the cut, or if it contacts a foreign object such as a
nail, the saw may be suddenly and forcefully pulled
away from the operator.
Pull-In
PULL
Push-Back
Push-back can occur when the blade at the top of the
bar is doing the cutting. If the blade is suddenly pinched
in the cut, or if it contacts a foreign object such as a
nail, the saw will be suddenly and forcefully pushed
back toward the operator.
Push-Back
PUSH
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