Kubota V6220 User manual

KUBOTA
HYDRAULIC POLE CHAIN SAW
MODEL V6220
9800066443
READ AND SAVE THIS MANUAL
OPERATOR’S MANUAL

SERIOUS INJURY OR DEATH COULD RESULT
FROMTHE IMPROPER REPAIR ORSERVICE
OFTHIS TOOL.
BE SURE YOUHAVE SUFFICIENTKNOWLEDGE,
EXPERIENCE, PROPER REPLACEMENTPARTS
ANDTOOLS BEFOREYOUATTEMPTANY REPAIR
OR SERVICE OF THISTOOL.
HAVE YOUR KUBOTADEALERPERFORMSERVICE
ONTHIS TOOLIF YOU DO NOTHAVE THE
NECESSARYKNOWLEDGEAND EQUIPMENT.
DANGER
DANGER
To avoid serious injury or death
WARNING
The Kubota labeled product in this document is intended for sale and exclusive use with the Kubota RTV900 only.
Operating these tools from any other unapproved power supply or carrier could damage the product and void the
manufacturer’s warranty.

3
For the nearest authorized and certified dealer, call Kubota Tractor Corporation.
SERVICING THE KUBOTA Hydraulic Pole Chain Saw. This manual contains safety, operation, and routine
maintenance instructions. Kubota Tractor Corporation recommends that servicing of hydraulic tools, other than
routine maintenance, be performed by an authorized and certified 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.
WARNING
FOREWORD
You are now the proud owner of a KUBOTA Pole Chain Saw. This tool is a product of KUBOTA quality
engineering and manufacturing. It is made of fine materials and under a rigid quality control system.
It will give you long, satisfactory service. To obtain the best use of your tool, please read this manual
carefully. It will help you become familiar with the operation of the tool and contains many helpful hints
about tool maintenance. It is KUBOTA’s policy to utilize as quickly as possible every advance in our
research. The immediate use of new techniques in the manufacture of products may cause some small
parts of this manual to be outdated. KUBOTA distributors and dealers will have the most up-to-date
information. Please do not hesitate to consult with them.

4
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 safety alert and signal word indicate an imminently hazardous situa-
tion which, if not avoided, will result in death or serious injury.
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.
CAUTION
WARNING
NOTICE
CAUTION
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 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, may result in minor or moderate 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.
SAFETY SYMBOLS
DANGER
IMPORTANT

5
Tool operators and maintenance personnel must always comply with the safety
precautions given in this manual and on the labels 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 precautions relating to the specific
work area and local safety regulations. If so, place the added precautions in the space
provided in this manual.
The V6220 Hydraulic Pole Chain Saw will provide safe and dependable service if
operatedinaccordancewiththeinstructionsgiveninthismanual. Readandunderstand
this manual and any labels 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 bystanders. 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 ensure 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 balance 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 pressure rating of 2500 psi/175 bar. Refer to the Tool Hose Information
Section in this manual.
• 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.
• 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 labels and tags legible.
• Always replace parts with replacement parts recommended by Kubota Tractor Corporation.
• Check fastener tightness often and before each use daily.
• Do not wear loose fitting clothing when operating the tool.
SAFETY PRECAUTIONS
To avoid serious injury or death
WARNING

6
SAFETY PRECAUTIONS
POLE CHAIN SAW SPECIFIC SAFETY PRECAUTIONS
• Do not rely exclusively upon the safety devices built into the saw.As a pole saw user, several steps must be taken to keep
your cutting jobs free from accident or injury.
• With basic understanding of kickback, you can reduce or eliminate the element of surprise. Sudden surprise contributes
to accidents.
• Keep a good firm grip on the pole chain saw with both hands. Place your right hand on the rear handle and your left hand
on the outer tube assembly when operating. Use a firm grip with your thumbs and fingers encircling the chain saw handle
and outer tube assembly. A firm grip helps reduce kickback and maintains control of the pole chain saw. Do not let go.
• Make sure the area in which you are cutting is free of obstructions. Never allow the nose of the guide bar to contact a
branch or any other obstruction that can be accidently hit while operating the saw.
• Follow the manufacturer’s sharpening and maintenance instructions for the saw chain.
• Only use replacement bars and chains specified by Kubota or equivalent.
• Make sure you’re well rested and mentally alert before operating the pole chain 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 chain during operation.
• Carry the saw with the unit de-energized.
• Do not operate a pole chain saw that is damaged, improperly adjusted or not completely and securely assembled. Make
sure the chain stops moving when the control trigger is released.
• Use extreme caution when cutting small branches. Twigs may catch the saw chain and be whipped toward the operator
or pull the operator off balance.
• When cutting a limb that is under tension, be aware of spring-back so you will not be struck when the tension on the limb
is released. Always cut on the outside arc or curve.
• Keep the handle dry, clean and free of hydraulic fluid.
• When using tools near energized transmission lines, make sure to use only hoses labeled and certified non-conductive.
• Turn off the power unit or move the hydraulic control valve to neutral before setting the pole chain saw down.
• Use a chain bar scabbard when transporting the saw.
• 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 personnel.
• Supply hoses must have a minimum working pressure rating of 2500 psi/175 bar. Refer to the Tool Hose Section in this
manual.

7
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
fatalvoltagesandmustneverbetouchedeitherdirectlyorindirectly.Accidentalcontactwithanyoverheadconductorsor
communication wires and cables can result in death or serious injury.
1. 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.
2. Only qualified tool operators shall be assigned to the work if an electrical hazard exists.
3. A second qualified tool operator must be within normal voice communication during line clearing operations aloft when
the tool operator approaches closer than 10 feet (3m) to any conductor or electrical apparatus energized in excess of 750
volts, or when roping is required to remove the branches or limbs.
4. Tool operators must maintain the following clearances from energized conductors:
Voltage Range
(phase-to-phase) (kV) Minimum Working Distance
2.1 to 15.0 2 ft 0 inches / 0.6 meters
15.1 to 35.0 2 ft 4 inches / 0.7 meters
35.1 to 46.0 2 ft 6 inches / 0.75 meters
46.1 to 72.5 3 ft 0 inches / 0.9 meters
72.6 to 121.0 3 ft 4 inches / 1.0 meters
138.0 to 145.0 3 ft 6 inches / 1.05 meters
161.0 to 169.0 3 ft 8 inches / 1.1 meters
230.0 to 242.0 5 ft 0 inches / 1.5 meters
345.0 to 362.0 7 ft 0 inches / 2.1 meters
500.0 to 552.0 11 ft 0 inches / 3.35 meters
700.0 to 765.0 15 ft 0 inches / 4.55 meters
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.
5. 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.
6. Storm work and emergency conditions create special hazards. During these conditions, only authorized tool operators
shall perform any tree operation.
ELECTRICAL HAZARDS
DANGER

8
GENERAL SAFETY
SAFETY WORKING
•Do not work on the tool or loader while under the influence
of alcohol, medication or other substances or while
fatigued.
• Wearclose fittingclothingandsafety equipmentappropriate
to the job.
• Use tools appropriate to the work. Makeshift tools, parts
and procedures are not recommended.
• When servicing is performed together by two or more
persons, take care to perform all work safely.
• Do not work under the machine that is supported solely
by a jack. Always support the machine by safety stands.
• Do not touch the rotating or hot parts while the engine is
running.
• Neverremove the radiator cap whilethe engine is running,
or immediately after stopping. Otherwise, hot water will
spout out from the radiator. Only remove radiator cap
when cool enough to touch with the bare hands.
Slowly loosen the cap to first stop to relieve pressure
before removing completely.
• Escaping fluid (fuel or hydraulic oil) under pressure can
penetratetheskin causing serious injury. Relieve pressure
before disconnecting hydraulic or fuel lines. Tighten all
connections before applying pressure.
AVOID FIRES
• Fuel is extremely flammable and explosive under certain
conditions. Do not smoke or allow flames or sparks in your
working area.
• To avoid sparks from an accidental short circuit, always
disconnect the battery negative cable first and connect it
last.
• Battery gas can explode. Keep sparks and open flame
away from the top of battery, especially when charging
the battery.
• Make sure that no fuel has been spilled on the engine.

9
VENTILATE WORK AREA
•If the engine must be running to do some work, make
sure the area is well ventilated. Never run the engine in
a closed area. The exhaust gas contains poisonous
carbon monoxide.
PREVENT ACID BURNS
• Sulfuric acid in battery electrolyte is poisonous. It is
strong enough to burn skin, clothing and cause blindness
if splashed into eyes. Keep electrolyte away from eyes,
handsandclothing.Ifyouspillelectrolyte on yourself, flush
with water and get medical attention immediately.
DISPOSE OF FLUIDS PROPERLY
• Do not pour fluids into the ground, down a drain or into
a stream, pond or lake. Observe relevant environmental
protection regulations when disposing of oil, fuel, coolant,
electrolyte and other harmful waste.
PREPARE FOR EMERGENCIES
• Keep a first aid kit and fire extinguisher handy at all
times.
• Keepemergencynumbersfordoctors,ambulanceservice,
hospital and fire department near your telephone.
GENERAL SAFETY

10
The safety tag (p/n 9800015875)
at right is attached to the tool
when shipped from the factory.
Read and understand the safety
instructions listed on this tag
before removal. We suggest you
retain this tag and attach it to the
tool when not in use.
SAFETY LABELS
Failure to use hydraulic hose labeled and certified
Failure to use hydraulic hose labeled and certified
as non-conductive when using hydraulic tools on
as non-conductive when using hydraulic tools on
or near electric lines may result in death or
or near electric lines may result in death or
For proper and safe operation read owners manual
For proper and safe operation read owners manual
and mwke sure that you have been properly
and mwke sure that you have been properly
trained in correct procedures required for work
trained in correct procedures required for work
serious injury.
serious injury.
on or around electric lines.
on or around electric lines.
ELECTROCUTION
HAZARD
DANGER
9800012412
Electrical Warning Label
4-6 GPM / 15-22 LPM
DO NOT EXCEED 2000 PSI / 140 BAR
DO NOT EXCEED SPECIFIED FLOW OR PRESSURE
USE CLOSED-CENTER TOOLON CLOSED-CENTER
SYSTEM. USE OPEN-CENTER TOOLON OPEN-CENTER
SYSTEM. CORRECTLY CONNECT HOSES TO TOOL “IN”
AND “OUT” PORTS. IMPROPER HANDLING, USE OR OTHER
MAINTENANCE OF TOOLCOULD RESULT INA LEAK, BURST
OR OTHER TOOLFAILURE. CONTACT AT A LEAK OR BURST
CAN CAUSE OIL INJECTION INTOTHE BODY. FAILURE TO
OBSERVE THESE PRECAUTIONS CAN RESULT IN SERIOUS
PERSONAL INJURY.
9800003782
GPM Label
THIS CHAIN SAW IS
EQUIPPED WITHAN
AUTOMATIC CHAIN
OILER.
SEE YOUR PARTS &
SERVICE BOOK FOR
PROPERADJUSTING
PROCEDURES
9800004746
Automatic Oiler
Label
9800015863
Fastener Danger
Label
9800066315
Name Label
DANGER
TO AVOID SEVERE PERSONAL INJURY,
DO NOT OPERATE WITH LOOSE,
MISSING OR DAMAGED FASTENERS
OR WITH NON-FACTORY APPROVED
FASTENERS. OPERATION WITH MISSING
OR DAMAGED FASTENERS OR WITH NON-
FACTORY APPROVED FASTENERS, MAY
RESULT IN SEPARATION OF THE MOTOR,
BLADE OR HANDLE ASSEMBLY FROM THE
OUTER TUBE.
Model No.
V6220
DANGER
IMPORTANT
READ OPERATION MANUAL AND
SAFETY INSTRUCTIONS FOR THIS
TOOL BEFORE USING IT.
USE ONLY PARTS AND REPAIR
PROCEDURES APPROVED BY
KUBOTA AND DESCRIBED IN THE
OPERATION MANUAL.
TAG TO BE REMOVED ONLY BY
TOOL OPERATOR.
SEE OTHER SIDE
1. FAILURETO USE HYDRAULICHOSE LABELEDAND CERTIFIED
AS NON-CONDUCTIVE WHEN USING HYDRAULIC TOOLS
ON OR NEAR ELECTRICAL LINES MAY RESULT IN DEATH
OR SERIOUS INJURY.
BEFORE USING HOSE LABELED AND CERTIFIED AS
NON-CONDUCTIVE ON OR NEAR ELECTRIC LINES BE SURE
THE HOSE IS MAINTAINED AS NON-CONDUCTIVE. THE
HOSE SHOULD BE REGULARLY TESTED FOR ELECTRIC
CURRENT LEAKAGE IN ACCORDANCE WITH YOUR SAFETY
DEPARTMENT INSTRUCTIONS.
2. A HYDRAULIC LEAK OR BURST MAY CAUSE OIL INJECTION
INTO THE BODY OR CAUSE OTHER SEVERE PERSONAL
INJURY.
A. DO NOT EXCEED SPECIFIED FLOW AND PRESSURE FOR
THIS TOOL. EXCESS FLOW OR PRESSURE MAY CAUSEA
LEAK OR BURST.
B. DO NOT EXCEED RATED WORKING PRESSURE OF
HYDRAULIC HOSE USED WITH THIS TOOL. EXCESS
PRESSURE MAYCAUSE ALEAK OR BURST.
C. CHECK TOOL HOSE COUPLERS AND CONNECTORS DAILY
FOR LEAKS. DO NOT FEEL FOR LEAKS WITH YOUR
HANDS. CONTACT WITH A LEAK MAY RESULT IN SEVERE
PERSONAL INJURY.
IMPORTANT
READ OPERATION MANUAL AND
SAFETY INSTRUCTIONS FOR THIS
TOOL BEFORE USING IT.
USE ONLY PARTS AND REPAIR
PROCEDURES APPROVED BY
KUBOTA AND DESCRIBED IN THE
OPERATION MANUAL.
TAG TO BE REMOVED ONLY BY
TOOL OPERATOR.
SEE OTHER SIDE
D. DO NOT LIFT OR CARRY TOOL BY THE HOSES. DO
NOT ABUSE HOSE. DO NOT USE KINKED, TORN OR
DAMAGED HOSE.
3. MAKE SURE HYDRAULIC HOSES ARE PROPERLY
CONNECTEDTOTHE TOOL BEFORE PRESSURING SYSTEM.
SYSTEM PRESSURE HOSE MUST ALWAYS BE CONNECTED
TO TOOL“IN” PORT. SYSTEM RETURN HOSE MUST ALWAYS
BE CONNECTED TO TOOL “OUT” PORT. REVERSING
CONNECTIONS MAY CAUSE REVERSE TOOL OPERATION
WHICH CAN RESULT IN SEVERE PERSONAL INJURY.
4. DO NOT CONNECT OPEN-CENTER TOOLS TO CLOSED-
CENTER HYDRAULIC SYSTEMS. THIS MAY RESULT IN LOSS
OFOTHER HYDRAULIC FUNCTIONS POWERED BYTHESAME
SYSTEM AND/OR SEVERE PERSONALINJURY.
5. BYSTANDERSMAYBE INJURED IN YOUR WORKAREA. KEEP
BYSTANDERS CLEAR OF YOUR WORK AREA.
6. WEAR HEARING, EYE, FOOT, HAND AND HEAD
PROTECTION.
7. TO AVOID PERSONAL INJURY OR EQUIPMENT DAMAGE,
ALL TOOL REPAIR MAINTENANCE AND SERVICE MUST
ONLY BE PERFORMED BY AUTHORIZED AND PROPERLY
TRAINED PERSONNEL.
DANGER
NOTE
THE INFORMATION LISTED ON THE
LABELS SHOWN MUST BE LEGIBLEAT
ALL TIMES.
REPLACE LABELS IF THEY BECOME
WORN OR DAMAGED. REPLACEMENTS
ARE AVAILABLE FROM YOUR LOCAL
KUBOTA DEALER.
SAFETY TAG P/N 9800015875 (shown smaller then actual size)
9800066647
Dropping Objects Label
9800066649
Electrocution Warning Label
9800066648
High Pressure Warning
Label

11
TABLE OF CONTENTS
SAFETY SYMBOLS............................................................................................................................................................4
SAFETY PRECAUTIONS....................................................................................................................................................5
ELECTRICAL HAZARDS....................................................................................................................................................7
GENERAL SAFETY.............................................................................................................................................................8
SAFETY LABELS..............................................................................................................................................................10
TABLE OF CONTENTS.....................................................................................................................................................11
TOOL HOSE INFORMATION............................................................................................................................................12
SPECIFICATIONS.............................................................................................................................................................14
ACCESSORIES.................................................................................................................................................................14
EQUIPMENT PROTECTION & CARE..............................................................................................................................15
OPERATION......................................................................................................................................................................16
PRE-OPERATION PROCEDURES ...............................................................................................................................16
CHECK POWER SOURCE............................................................................................................................................16
CHECK TOOL................................................................................................................................................................16
CHECK TRIGGER MECHANISM ..................................................................................................................................16
CONNECTING HOSES..................................................................................................................................................16
TOOL OPERATION........................................................................................................................................................16
CUTTING TIPS ..............................................................................................................................................................16
LOGS/LIMBS WITH PRESSURE ON BOTTOM............................................................................................................16
PRUNING & TRIMMING................................................................................................................................................16
TOPPING/LOWERING LIMBS.......................................................................................................................................17
LIMBING AND BUCKING...............................................................................................................................................17
COLD WEATHER OPERATION.....................................................................................................................................17
TROUBLESHOOTING ......................................................................................................................................................18
V6220 PARTS ILLUSTRATION.........................................................................................................................................19
V6220 PARTS LIST...........................................................................................................................................................20

12
TOOL HOSE INFORMATION
HOSE TYPES (Refer to the next page for hose specifications.)
The rated working pressure of the hydraulic hose must be equal to or higher than the relief valve setting on the
hydraulic system.There are three types of hydraulic hose that meet this requirement and are authorized for use by
Kubota Tractor Corporation. They are:
Certified non-conductive - constructed of thermoplastic or synthetic rubber inner tube, synthetic fiber
braid reinforcement, and weather resistant thermoplastic or synthetic rubber cover. Hose labeled certified non-
conductive is the only hose authorized for use near electrical conductors.
Wire-braided (conductive) - constructed of synthetic rubber inner tube, single or double wire braid rein-
forcement, and weather resistant synthetic rubber cover. This hose is conductive and must never be used near
electrical conductors.
Fabric-braided (not certified or labeled non-conductive) - constucted of thermoplastic or synthetic rubber
inner tube, synthetic fiber braid reinforcement, and weather resistant thermoplastic or synthetic rubber cover. This
hose is not certified non-conductive and must never be used near electrical conductors.
HOSE SAFETY TAGS
To help ensure your safety, the following DANGER tags are attached to all hose purchased from Kubota.
DO NOT REMOVE THESE TAGS.
If the information on a tag is illegible because of wear or damage, replace the tag immediately. A new tag may be
obtained from your Kubota Distributor.
THE TAG SHOWN BELOW IS ATTACHED TO “CERTIFIED NON-CONDUCTIVE” HOSE
THE TAG SHOWN BELOW IS ATTACHED TO “CONDUCTIVE” HOSE.
SIDE 1 SIDE 2
D A N G E R
DO NOT REMOVE THIS TAG
D A N G E R
1 FAILURE TO USE HYDRAULIC HOSE LABELEDAND CERTIFIED AS NON-CONDUCTIVE
WHEN USING HYDRAULIC TOOLS ON OR NEAR ELECTRIC LINES MAYRESULT IN DEATH
OR SERIOUS INJURY.
FOR PROPER AND SAFE OPERATION MAKE SURE THAT YOU HAVE BEEN PROPERLY
TRAINED IN CORRECT PROCEDURES REQUIRED FOR WORK ON ORAROUND
ELECTRIC LINES.
2. BEFORE USING HYDRAULIC HOSE LABELED AND CERTIFIEDAS NON-CONDUCTIVE ON
OR NEAR ELECTRIC LINES. WIPE THE ENTIRE LENGTH OF THE HOSEAND FITTING
WITH A CLEAN DRY ABSORBENT CLOTH TO REMOVE DIRT AND MOISTURE AND TEST
HOSE FOR MAXIMUM ALLOWABLE CURRENT LEAKAGE INACCORDANCE WITH SAFETY
DEPARTMENT INSTRUCTIONS.
DO NOT REMOVE THIS TAG
3. DO NOT EXCEED HOSE WORKING PRESSURE OR ABUSE HOSE. IMPROPER USE OR
HANDLING OF HOSE COULD RESULT IN BURST OR OTHER HOSE FAILURE. KEEP
HOSE AS FAR AWAYAS POSSIBLE FROM BODYAND DO NOT PERMIT DIRECT CONTACT
DURING USE. CONTACTATTHE BURST CAN CAUSE BODILY INJECTIONAND SEVERE
PERSONAL INJURY.
4. HANDLE AND ROUTE HOSE CAREFULLY TOAVOID KINKING,ABRASION, CUTTING, OR
CONTACT WITH HIGH TEMPERATURE SURFACES. DO NOT USE IF KINKED. DO NOT USE
HOSE TO PULLOR LIFT TOOLS, POWER UNITS, ETC.
5. CHECK ENTIRE HOSE FOR CUTS CRACKS LEAKS ABRASIONS, BULGES, OR DAMAGE TO
COUPLINGS IF ANYOF THESE CONDITIONS EXIST, REPLACE THE HOSE IMMEDIATELY.
NEVER USE TAPE ORANY DEVICE TO ATTEMPT TO MEND THE HOSE.
6. AFTER EACH USE STORE IN ACLEAN DRY AREA.
3(shown smaller than actual size)
(shown smaller than actual size)
D A N G E R
DO NOT REMOVE THIS TAG
D A N G E R
1 DO NOT USE THIS HYDRAULIC HOSE ON OR NEAR ELECTRIC LINES. THIS HOSE IS
NOT LABELED OR CERTIFIEDAS NON-CONDUCTIVE. USING THIS HOSE ON OR NEAR
ELECTRICAL LINES MAY RESULT IN DEATH OR SERIOUS INJURY.
2. FOR PROPER AND SAFE OPERATION MAKE SURE THAT YOU HAVE BEEN PROPERLY
TRAINED IN CORRECT PROCEDURES REQUIRED FOR WORK ON ORAROUND
ELECTRIC LINES.
3. DO NOT EXCEED HOSE WORKING PRESSURE OR ABUSE HOSE. IMPROPER USE OR
HANDLING OF HOSE COULD RESULT IN BURST OR OTHER HOSE FAILURE. KEEP
HOSE AS FAR AWAYAS POSSIBLE FROM BODYAND DO NOT PERMIT DIRECT CONTACT
DURING USE. CONTACTATTHE BURST CAN CAUSE BODILY INJECTIONAND SEVERE
PERSONAL INJURY.
4. HANDLE AND ROUTE HOSE CAREFULLY TOAVOID KINKING, CUTTING, OR CONTACT
WITH HIGH TEMPERATURE SURFACES. DO NOT USE IF KINKED. DO NOT USE HOSE TO
PULL OR LIFTTOOLS, POWER UNITS, ETC.
DO NOT REMOVE THIS TAG
5. CHECK ENTIRE HOSE FOR CUTS CRACKS LEAKS ABRASIONS, BULGES, OR DAMAGE TO
COUPLINGS IF ANYOF THESE CONDITIONS EXIST, REPLACE THE HOSE IMMEDIATELY.
NEVER USE TAPE ORANY DEVICE TO ATTEMPT TO MEND THE HOSE.
6. AFTER EACH USE STORE IN ACLEAN DRY AREA.
SEE OTHER SIDE
SIDE 1 SIDE 2

13
TOOL HOSE INFORMATION
Oil Flow Each Hose Length Inside Diameter USE Wire Braid
Hose Spec Working Pressure Fiber Braid
Hose Spec Operating Pressure
GPM LPM FEET METERS INCH MM PSI BAR PSI BAR
5-8 19-30 up to 50 up to 15 1/2 13 Both SAE 100R17-8 3000 230 SAE 100R7-8 2000 140 5-8 19-30 51-100 15-30 5/8 16 Both SAE 100R17-10 3000 230 SAE 100R8-10 2750 190 5-8 19-30 100-300 30-90 5/8 16 Pressure SAE 100R2-10 2750 190 SAE 100R8-10 2750 190
3/4 19 Return SAE 100R1-12 1250 86 SAE 100R7-12 1250 86
Typical Hose Connections
Tool To Circuit Hose Recommendations
HYDRAULIC CIRCUIT
CONTROL PANEL
FLOW>>>
TOOL
RETURN
PRESSURE
<<<FLOW
H.T.M.A. FEMALE QUICK DISCONNECT COUPLER
H.T.M.A. MALE QUICK DISCONNECT COUPLER
MALE PIPE HOSE END
PRESSURE RETURN
MALE PIPE HOSE END
ADAPTER OR HOSE WHIPS, 3/8 INCH MALE PIPE x -8 SAE O-RING
PRESSURE
RETURN
NOTE: SAE 100R16 may be used in place of SAE 100R2

14
Capacity..........................................................................................................................................12 in/30 cm Cut Lengths
Weight (w/o Bar and Chain) ..............................................................................................................................8.5 lbs / 4 kg
Overall Length with 12-inch Bar ........................................................................................................................90 in/229 cm
Pressure.....................................................................................................................................1500-2000 psi/105-140 bar
Flow Range .............................................................................................................................................4-6 gpm/15-22 lpm
Optimum Flow ..................................................................................................................................................5 gpm/19 lpm
Porting .......................................................................................................................................... -8 (1/2-inch) SAE O-Ring
Connect Size and Type ...........................................................................................1/2 SAE Male x 3/8 NPT Male Adapter
Hose Whips.......................................................................................................................................................................No
ACCESSORIES
Description Part Number
12 in/30 cm Saw Bar ...................................................................................................................................................V6211
Saw Chain for 12 in/30 cm Bar 34SL (56 Drive Links)................................................................................................V6212
Chain Saw Guard........................................................................................................................................................V6213
Depth Gauge......................................................................................................................................................9800011298
Flat File...............................................................................................................................................................9800011294
Scrench ..............................................................................................................................................................9800011464
File Guide with File............................................................................................................................................ 9800007935
SPECIFICATIONS

15
EQUIPMENT PROTECTION & CARE
• Make sure all couplers are wiped clean before connection.
• The hydraulic circuit control valve must be in the “OFF” position when coupling or uncoupling
hydraulic tools. Failure to do so may result in damage to the quick couplers and cause overheating
of the hydraulic system.
• Always store the tool in a clean dry space, safe from damage or theft.
• Make sure the circuit PRESSURE hose (with male quick disconnect) is connected to the “IN” port.
The circuit RETURN hose (with female quick disconnect) is connected to the opposite port. Do not
reverse circuit flow. This can cause damage to internal seals.
• Always replace hoses, couplings and other parts with replacement parts recommended by Kubota Tractor
Corporation. Supply hoses must have a minimum working pressure rating of 2500 psi/172 bar. Refer to the Tool Hose
Information Section in this manual.
• Do not exceed the rated flow (refer to Specifications) in this manual for correct flow rate and
model number. Rapid failure of the internal seals may result.
• Always keep critical tool labels and tags legible.
• Do not use the tool for applications it was not designed for. The chain saw is intended to cut wood only.
• Keep chain sharp for maximum tool performance.
• Tool repair should be performed by experienced personnel only.
• Make certain that the recommended relief valves are installed in the pressure side of the system.
• Do not use the tool for applications for which it was not intended.
In addition to the Safety
Precautions in this manual,
observe the following for
equipment protection and care.
NOTICE

16
WARNING
TOOL OPERATION
The following are general woodcutting procedures and
techniques. Differences in the terrain, vegetation and
type of wood will make this information more or less
valid for particular areas. For advice on specific wood
cutting problems or techniques for your area, consult
you local Stanley representative or your county agent.
They can often provide information that will make your
work safer and more productive.
CUTTING TIPS
1. Clear the work area. You need a clean area all around the
tree. Get everything out of the area where the limbs might
fall. Do not cut trees near structures. Because of the danger
of electrocution, use extreme care when cutting trees near
power lines.
2 The chain saw should cut with very little pressure applied
to the handle. If you have to force the cut or if the cut is not
straight, cease cutting immediately to prevent further saw
chainand bardamage.Seethe Maintenance andAdjustments
section in this manual for chain replacement, sharpening or
adjustment procedures.
3. Observe safety precautions.
Watch for falling limbs.
LOGS/LIMBS WITH PRESSURE ON BOTTOM
1. Observe all safety precautions.
2. Begin with a bottom-cut. The depth of the cut should be
about one-third of the log diameter.
3. Finish with an upper cut, down from the top. The saw cuts
should meet.
PRUNING & TRIMMING
1. Observe all safety precautions.
2. Use both hands. Keep a firm grip.
OPERATION
PRE-OPERATION PROCEDURES
CHECK POWER SOURCE
Refer to the RTV User’s Manual for proper instructions.
CHECK TOOL
1. Make sure all tool accessories are correctly installed.
Failure to install tool accessories properly can result in
damage to the tool or personal injury.
2. There should be no signs of leaks.
3. The tool should be clean, with all fittings and fasteners
tight.
CHECK TRIGGER MECHANISM
1. Check that the trigger operates smoothly and is free to
travel between the ON and OFF positions.
CONNECTING 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 a good practice to
connect return hoses first and disconnect them last to mini-
mize or avoid 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 is
the inlet (pressure) coupler.
4. Move the hydraulic circuit control valve to the ON position
to operate the tool.
Use caution around hoses and tool as both are under
pressure.Aleak could penetrate the skin. Do not use
hands to feel for leaks. Turn off tool and power supply
before inspecting for leaks.
NOTE:
If uncoupled hoses are left in the sun, pressure increase
inside the hoses can make them difficult to connect. If
possible, connect the free ends of the hoses together.
WARNING
WARNING

17
the trees are able to stand the strain of a topping procedure.
If not, some other means of lowering the branches should be
provided, such as a tree crane.
4.If large limbs arelowered in sections, the worker in the tree
should be above the limb being lowered.
5. Guidelines, handlines, or tag lines must be used when
conditions warrant their use.
LIMBING AND BUCKING
1. Observe all safety precautions.
2. Use both hands. Keep a firm grip.
3. When it is possible to do so, the tree worker must work on
the side opposite the side on which the limb is being cut.
4. Branches bent under tension must be considered
hazardous.
COLD WEATHER OPERATION
If the tool is to be used during cold weather (50° F/10° C),
preheat the hydraulic fluid by warming up the RTV900 to
operating temperature. Refer to the RTV Operator’s Manual
for proper instructions.
During cold weather, hydraulic fluid may become too viscous
or thick resulting in damage to tool seals..
Cutting frozen wood causes the cutters to wear, crack and
break at the back rivet hole unless proper precautions are
taken. To extend chain life when cutting in cold weather:
• Be sure the automatic oiler is working.
• Keep the chain tensioned and check often.
• Keepthe chain properly sharpened.Touch up at least
every hour. Never force a dull chain to cut.
• Clean out the bar groove and keep the oil hole open.
Turn the bar over to equalize wear on the rails.
• Always install a new sprocket with a new chain.
3.Bealert for kickback. Do notallowthe tip of the bar totouch
anything while the chain is in motion.
Figure 2. Crosscutting Logs/Limbs with
Pressure on Bottom
4. Pole chain saws must be hung securely in a vertical
position to prevent dislodgement. Pole chain saws must not
be hung on utility wires or cables and must not be left in the
tree overnight. Pole chain saws must be hung so the sharp
edge is away from the worker, if possible.
5. Warnings, when necessary, must be given by the worker
in the tree before a limb is dropped. “Timber” or “heads up”
are common terms used for this purpose.
6. A separate line should be attached to limbs that cannot
be dropped safely or are too heavy to be controlled by hand.
The line should be held by workers on the ground end of the
rope. Use of the same crotch for both the safety rope and the
work rope should be avoided.
7. The safety line or climbing rope must not be used for any
purpose but for climbing.
8. Cut branches must not be left in trees overnight.
TOPPING/LOWERING LIMBS
1. Observe all safety precautions.
2. Use both hands. Keep a firm grip.
3. Workers performing topping operations should make sure
OPERATION

18
TROUBLESHOOTING
If symptoms of poor performance develop, the following chart can be used as a guide to correct the problem.
When diagnosing faults in operation of the pole chain saw, always make sure the hydraulic power source is supplying the
correct hydraulic flow and pressure as listed in the table. Use a flowmeter known to be accurate. Check the flow with the
hydraulic fluid temperature at least 80oF/27oC in reservoir.
PROBLEM CAUSE SOLUTION
Cuts slow. Insufficient fluid flow or low relief valve
setting. Adjust fluid flow to proper gpm. For optimumperformance adjust relief valve
to 2250 psi/155 bar.
Chain dull. Sharpen per instructions or replace.
Backpressure too high. Should not exceed 250 psi/17 bar at
rated flow measured at the end of the
tool operating hoses.
Bar turns color. Insufficient oiler flow. Adjust oiler per service instructions.
Tool does not run. Power unit not functioning. Check power unit for proper flow and
pressure 4-6 gpm/15-22 lpm at 1500
psi/104 bar minimum.
Coupler or hoses blocked. Remove obstruction.
Mechanical failure. Disassemble tool and inspect for
damage.
Tool runs backwards. Pressure and return hoses reversed. Correct for proper flow direction.
Motor shaft rotates clockwise.
Oil leakage around drive sprocket. Motor shaft seal failure. Replace as required. Make sure that
oil present is not the result of excess
oiler flow.
ON/OFF trigger is hard to press. Pressure and return hoses reversed. Correct for proper flow direction.
Backpressure too high. Should not exceed 250 psi/17 bar at
rated flow measured at the end of the
tool operating hoses.
Motor sections oil leakage. Motor face seal failure. Replace as required.

19
V6220 PARTS ILLUSTRATION

20
V6220 PARTS LIST
ITEM
NO. PART NO. QTY DESCRIPTION
1 9800066202 1 CAPSCREW
2 9800065834 1 CHAIN GUARD
3 9800007631 2 NUT
4 9800008348 1 SAW CHAIN - 12-INCH
5 9800007621 1 CHAIN GUIDE PLATE
6 9800007630 2 STUD
7 9800007620 1 BAR ADJUSTMENT NUT
8 9800007632 1 SCREW
9 9800004044 2 NEEDLE ROLLER
10 9800007832 2 DRIVER GEAR
11 ---- -- NO ITEM
12 9800007834 1 REAR GEAR HOUSING ASSY
13 9800000753 8 CAPSCREW
14 9800004041 4 BUSHING
15 ---- -- NO ITEM
16 9800007612 1 IDLER SHAFT
17 9800000020 1 O-RING
18 9800066201 1 MOTOR HOUSING SVCE ASSY
19 9800016668 4 O-RING
20 9800000453 1 NUT
21 9800007617 1 WASHER
22 9800007629 1 RIM SPROCKET
23 9800007616 1 SPROCKET ADAPTER
24 9800006635 1 RETAINING RING
25 9800000335 1 BEARING
26 9800004856 1 RETAINING RING
27 9800007615 1 SEAL BACKUP WASHER
28 9800004037 1 SEAL
29 9800060975 1 MOTOR SHAFT
30 9800066315 1 LABEL, NAME
31 9800018089 6 CAPSCREW
32 9800060974 1 OUTER TUBE ASSY
33 9800000042 2 OIL TUBE ASSY
34 9800015863 1 LABEL, FASTENER WARNING
35 9800003782 1 LABEL, GPM
36 9800012412 1 LABEL, ELECTRIC WARNING
37 9800066647 1 LABEL, DROPPING OBJECTS
WARNING
38 9800066649 1 LABEL, ELECTRICAL WARNING
39 9800066648 1 LABEL, HIGH PRESSURE
WARNING
40 9800024833 1 HANDLE ASSY
41 9800007627 1 O-RING
42 9800019868 1 SPRING
43 9800051183 1 TRIGGER
44 9800001534 1 ROLL PIN
45 9800051182 1 TRIGGER GUARD
ITEM
NO. PART NO. QTY DESCRIPTION
46 9800022147 2 CAPSCREW
47 9800000936 2 ADAPTER
48 9800001605 2 O-RING
49 9800007626 1 O-RING
50 9800019874 1 VALVE SPOOL
51 9800000026 1 O-RING
52 9800019875 1 SELECTOR SCREW
53 9800016070 1 RETAINING RING
54 9800022807 1 LOCK OUT PLUG
55 9800008347 1 SAW BAR - 12-INCH
56 9800002921 1 AUTOMATIC OILER
57 9800001362 1 O-RING
58 9800006971 1 LOCK NUT
59 9800002624 2 WASHER
60 9800007622 1 CHAIN GUIDE
61 9800003972 1 COUPLER, FEMALE*
62 9800003973 1 COUPLER, MALE*
9800021053 1 SEAL KIT
* PART OF 9800003971 COUPLER SET.