Stanley CS25 User manual

CS25/28
HYDRAULIC
POLE CHAIN SAW
© Stanley Hydraulic Tools 2006
OPS/MAINT USA / CE
Printed in U.S.A.
66205 2/2010 ver 4
SAFETY, OPERATION AND MAINTENANCE
USER'S MANUAL

3
For the nearest authorized and certified dealer, call Stanley Hydraulic Tools at the number listed on the
back of this manual and ask for a Customer Service Representative.
SERVICING THE STANLEY HYDRAULIC Pole Chain Saw. This manual contains safety, operation, and
routine maintenance instructions. Stanley Hydraulic Tools recommends that servicing of hydraulic tools,
other than routine maintenance, be performed by an authorized and certified dealer. Please read the fol-
lowing warning.
SERIOUS INJURY OR DEATH COULD RESULT FROM THE IM-
PROPER REPAIR OR SERVICE OF THIS TOOL.
REPAIRS AND / OR SERVICE TO THIS TOOL MUST ONLY BE
DONE BY AN AUTHORIZED AND CERTIFIED DEALER.
WARNING
TABLE OF CONTENTS
CERTIFICATE OF CONFORMITY.............................................................................................................................................................4
SAFETY SYMBOLS...................................................................................................................................................................................5
SAFETY PRECAUTIONS...........................................................................................................................................................................6
ELECTRICAL HAZARDS...........................................................................................................................................................................8
TOOL STICKERS & TAGS.......................................................................................................................................................................10
HYDRAULIC HOSE REQUIREMENTS....................................................................................................................................................11
HTMA REQUIREMENTS..........................................................................................................................................................................12
OPERATION.............................................................................................................................................................................................13
PREOPERATION PROCEDURES .....................................................................................................................................................13
CHECK POWER SOURCE.................................................................................................................................................................13
CHECK TOOL.....................................................................................................................................................................................13
CHECK TRIGGER MECHANISM.......................................................................................................................................................13
SETTING THE DUAL SPOOL FOR OPERATION..............................................................................................................................13
SETTING FOR OPEN-CENTER (OC) OR CLOSED-CENTER (CC) OPERATION...........................................................................13
TO DISABLE DUAL SPOOL OPERATION AND CONVERT TO OC ONLY OPERATION..................................................................13
TO DISABLE DUAL SPOOL OPERATION AND CONVERT TO CC ONLY OPERATION..................................................................13
CONNECTING HOSES ......................................................................................................................................................................13
TOOL OPERATION.............................................................................................................................................................................14
CUTTING TIPS...................................................................................................................................................................................14
FELLING OR TOPPING......................................................................................................................................................................14
NOTCHING OR UNDERCUTTING.....................................................................................................................................................14
FELLING OR BACK CUT....................................................................................................................................................................14
LOGS/LIMBS WITH PRESSURE ON BOTTOM.................................................................................................................................14
PRUNING & TRIMMING.....................................................................................................................................................................14
TOPPING/LOWERING LIMBS............................................................................................................................................................15
LIMING AND BUCKING......................................................................................................................................................................15
COLD WEATHER OPERATION .........................................................................................................................................................15
EQUIPMENT PROTECTION & CARE.....................................................................................................................................................17
TROUBLESHOOTING .............................................................................................................................................................................18
SPECIFICATIONS....................................................................................................................................................................................19
ACCESSORIES........................................................................................................................................................................................19
SERVICE TOOLS.....................................................................................................................................................................................19
CS25/28 PARTS ILLUSTRATION ............................................................................................................................................................20
CS25/28 PARTS LIST..............................................................................................................................................................................21
WARRANTY.............................................................................................................................................................................................22

4
CERTIFICATE OF CONFORMITY
ÜBEREINSTIMMUNGS-ZERTIFIKAT
CERTIFICAT DE CONFORMITE CEE
CERTIFICADO DE CONFORMIDAD
CERTIFICATO DI CONFORMITA
Hydraulic Tools
______________________________________________________________________
I, the undersigned:
Ich, der Unterzeichnende:
Je soussigné:
El abajo firmante:
lo sottoscritto:
Weisbeck, Andy
Surname and First names/Familiennname und Vornamen/Nom et prénom/Nombre y apellido/Cognome e nome
hereby certify that the construction plant or equipment specified hereunder:
bestätige hiermit, daß das im folgenden genannten Werk oder Gerät:
certifies par ceci que l’ usine ou l’ équipement de construction indiqué cidessous:
por el presente certifico que la fabrica o el equipo especificado a continuacion:
certifico che l’impianto o l’attrezzatura sotto specificata:
1. Category: Pole Chain Saws, Hydraulic
Kategorie:
Catégorie:
Categoria:
Categoria:
2. Make/Ausführung/Marque/Marca/Marca
Stanley
3. Type/Typ/Type/Tipo/Tipo: CS2581101, CS2881101
4. Serial number of equipment:
Seriennummer des Geräts:
Numéro de série de l’équipement:
Numero de serie del equipo:
Matricola dell´attrezzatura: All
5. Year of manufacture/Baujahr/année de fabrication/Año de fabricacion/Anno di fabbricazione Beginning 2002
Has been manufactured in conformity with - EEC Type examination as shown.
Wurde hergestellt in Übereinstimmung mit - EEC Typ-Prüfung nach.
Est fabriqué conformément - au(x) type(s) examiné(s) comme indiqué dans le tableau ci-après.
Ha sido fabricado de acuerdo con - tipo examen EEC como dice.
E’ stata costruita in conformitá con - le norme CEE come illustrato.
Examen CEE de type
Directive
Richtlinie
Directives particulières
Directriz
Direttiva
No.
Nr
Numéro
No
n.
Date
Datum
Date
Fecha
Data
Approved body
Prüfung durch
Organisme agréé
Aprobado
Collaudato
Date of expiry
Ablaufdatum
Date d´expiration
Fecha de caducidad
Data di scadenza
Certificate
Machinery Directive 0466/96/32-1 98/37/EC 25 June 1998 1998 AEA Technology Self NA NA
6. Special Provisions: None
Dispositions particulières:
Provisiones especiales:
Disposizioni speciali:
7. Representative in the Union: Stanley Dubuis 17-19, rue Jules Berthonneau-BP 3406 41034 Blois Cedex, France.
Done at/Ort/Fait à/Dado en/Fatto a Stanley Hydraulic Tools, Milwaukie, Oregon USA Date/Datum/le/Fecha/Data 7-30-02
Signature/Unterschrift/Signature/Firma/Firma
Position/Position/Fonction/Puesto/Posizione Engineering Manager_____________________
Rev. 3 2/3/10

5
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 equip-
ment.
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 mainte-
nance personnel.
CAUTION
WARNING
DANGER
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.
IMPORTANT
SAFETY SYMBOLS

6
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 precautions relating to the specific work area and local safety regula-
tions. If so, place the added precautions in the space provided in this manual.
The CS25/28 Hydraulic Pole Chain 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 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.
• 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 the tool at oil temperatures above 140°F/60°C. Operation at higher oil temperatures can cause operator
discomfort and may damage the tool.
• 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 au-
thorized 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 lables 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 fitting clothing when operating the tool.
SAFETY PRECAUTIONS

7
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.
• Cut at the rated operating speeds (gpm).
• Follow the manufacturer’s sharpening and maintenance instructions for the saw chain.
• Only use repalcement bars and chains specified by Stanley 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 deenergized.
• Do not opeate 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 springback 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 hdyraulic 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 au-
thorized and properly trained personnel.

8
ELECTRICAL HAZARDS
The following guidelines must be followed to prevent accidental contact with overhead electrical conductors and/or com-
munication wires and cables. (ref. ANSI Z133.1-2000)
Working in Proximity to Electrical Hazards:
An inspection shall be made by a qualified arborist to determine whether an electrical hazard exists before climbing, or
otherwise entering, or performing work in or on a tree.
Only qualified line-clearance arborists or qualified line-clearance arborist trainees shall be assigned to work where an
electrical hazard exists. Qualified line-clearance arborist trainees shall be under the direct supervision of qualified line-
clearance arborist.
A second qualified line-clearance arborists or line-clearance arborist trainees shall be within vision or voice communica-
tion 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 first be cut (with a pole pruner/pole saw) to sufficiently 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 indi-
viduals working on behalf of, or employed by, electrical system owners/operators engaged in line-clearing
operations incidental to their normal occupation.
Qualified 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.
Table 1 - Minimum approach distances from energized conductors for qualified line-clearance ar-
borists and qualified line- clearance arborist trainees.
Nominal Voltage
(kV phase-to-phase)
Includes 1910.269 eleva-
tion factor, sea level to
5000 ft1)
Includes 1910.269 eleva-
tion factor, 5001 - 10,000
ft1)
Includes 1910.269 elevation fac-
tor, 10,000 - 14,000 ft1)
ft-in m ft-in m ft-in m
0.05 to 1.0 Avoid contact Avoid contact Avoid contact
1.1 to 15.0 2-04 0.71 2-08 0.81 2-10 0.86
15.1 to 36.0 2-09 0.84 3-02 0.97 3-05 1.04
36.1 to 46.0 3-00 0.92 3-05 1.04 3-09 1.14
46.1 to 72.5 3-09 1.14 4-03 1.30 4-07 1.40
72.6 to 121.0 4-06 1.37 5-02 1.58 5-07 1.70
138.0 to 145.0 5-02 1.58 5-11 1.80 6-05 1.96
161.0 to 169.0 6-00 1.83 6-10 2.08 7-05 2.26
230.0 to 242.0 7-11 2.41 9-00 2.75 9-09 2.97
345.0 to 362.0 13-02 4.02 15-00 4.58 16-03 4.96
500.0 to 550.0 19-00 5.80 21-09 6.63 23-06 7.17
765.0 to 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.

9
ELECTRICAL HAZARDS CONTINUED
Table 2 - Minimum approach distances to energized conductors for persons other than qualified
line-clearance arborists and qualified line- clearance arborist trainees.
Nominal Voltage
kV phase-to-phase1) 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.
The tie-in position should be above the work area and located in such a way that a slip would swing the arborist away
from any energized electrical conductors or other identified hazard.
While climbing, the arborist should climb on the side of the tree that is away from energized electrical conductors as re-
quired in Tables 1 and 2.
Footwear, including lineman’s overshoes, having electrical-resistant soles, shall not be considered as providing any mea-
sure of safety from electrical hazards.
Rubber gloves, with or without leather or other protective covering, shall not be considered as providing any measure of
safety from electrical hazards.
Ladders, platforms and aerial devices, including insulated aerial devices, shall be subject to minimum approach distances
in Table 1 and 2.
Aerial devices and attached equipment (such as chippers) contacting energized electrical conductors shall be considered
energized. Contact shall be avoided, except where emergency rescue procedures are being carried out. Emergency res-
cue should be performed in accordance with 4.3.
Storm Work and Emergency Conditions-Line Clearance
Line clearance shall not be performed during adverse weather conditions such as thunderstorms, high winds and snow
and ice stroms.
Qualified line-clearance arborists and qualified line-clearance arborists trainees performing line clearance in the aftermath
of a storm or under similar conditions shall be trained in the special hazards associated with this type of work.
Line-clearance operations shall be suspended when storm work or emergency conditions develop involving energized
electrical conductors. Electrical system owners/operators shall be notified immediately.

10
The safety tag (p/n
15875) 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.
TOOL STICKERS & TAGS
(shown smaller then actual size)
SAFETY TAG P/N 15875
IMPORTANT
READ OPERATION MANUAL AND
SAFETY INSTRUCTIONS FOR THIS
TOOL BEFORE USING IT.
USE ONLY PARTS AND REPAIR
PROCEDURES APPROVED BY
STANLEY AND DESCRIBED IN THE
OPERATION MANUAL.
TAG TO BE REMOVED ONLY BY
TOOL OPERATOR.
1. FAILURE TO USE HYDRAULIC HOSE LABELED
AND 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 CERTI-
FIED 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 ACCOR-
DANCE WITH YOUR SAFETY DEPARTMENT
INSTRUCTIONS.
2. A HYDRAULIC LEAK OR BURST MAY CAUSE
OIL INJECTION I N T O T H E
BODY OR CAUSE OTHER SEVERE PERSONAL
INJURY.
A DO NOT EXCEED SPECIFIED FLOW AND
PRESSURE FOR
IMPORTANT
READ OPERATION MANUAL AND
SAFETY INSTRUCTIONS FOR THIS
TOOL BEFORE USING IT.
USE ONLY PARTS AND REPAIR
PROCEDURES APPROVED BY
STANLEY AND DESCRIBED IN THE
OPERATION MANUAL.
TAG TO BE REMOVED ONLY BY
TOOL OPERATOR.
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 PROP-
ERLY CONNECTED TO THE TOOL BEFORE
PRESSURING SYSTEM. SYSTEM PRESSURE
HOSEMUSTALWAYS BE CONNECTED TOTOOL
“IN” PORT. SYSTEM RETURN HOSE MUST
ALWAYSBECONNECTEDTOTOOL“OUT”PORT.
REVERSING CONNECTIONS MAY CAUSE RE-
VERSETOOLOPERATION WHICHCAN RESULT
IN SEVERE PERSONAL INJURY.
4. DO NOT CONNECT OPEN-CENTER TOOLS TO
CLOSED-CENTERHYDRAULICSYSTEMS. THIS
MAY RESULT IN LOSS OF OTHER HYDRAULIC
FUNCTIONSPOWERED BYTHE SAME SYSTEM
AND/OR SEVERE PERSONAL INJURY.
5. BYSTANDERSMAYBEINJUREDINYOURWORK
AREA. KEEP BYSTANDERS CLEAR OF YOUR
WORK AREA.
DANGER DANGER
28323
CE Decal
28409
Composite Decal
11207
Circuit Type D Decal
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
12412
Electrical Warning Decal
05153
Stanley Decal 03786
7-9 GPM Decal
34685
Sound Power Decal
03782
4-6 GPM Decal
THIS CHAIN SAW IS
EQUIPPED WITHAN
AUTOMATIC CHAIN
OILER.
SEE YOUR PARTS &
SERVICE BOOK FOR
PROPERADJUSTING
PROCEDURES
04746
Automatic Oiler
Decal
15863
Danger Decal
65839 - CS25 (shown)
65840 - CS28
Name Tag
11206
Circuit Type C Decal
03693
Closed Center Decal

11
HOSE TYPES
Hydraulic hose types authorized for use with Stanley Hydraulic Tools are as follows:
1Certified non-conductive
2 Wire-braided (conductive)
3 Fabric-braided (not certified or labeled non-conductive)
Hose 1listed above is the only hose authorized for use near electrical conductors.
Hoses 2and 3 listed above are 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 Stanley Hydrau-
lic Tools. 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 Stanley Distributor.
HOSE PRESSURE RATING
The rated working pressure of the hydraulic hose must be equal to or higher than the relief valve setting on the
hydraulic system.
THE TAG SHOWN BELOW IS ATTACHED TO “CERTIFIED NON-CONDUCTIVE” HOSE
THE TAG SHOWN BELOW IS ATTACHED TO “CONDUCTIVE” HOSE.
HYDRAULIC HOSE REQUIREMENTS
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 CERTIFIEDAS NON-CONDUCTIVE
WHEN USING HYDRAULIC TOOLS ON OR NEAR ELECTRIC LINES MAYRESULT IN DEATH
OR SERIOUS INJURY.
FOR PROPER AND SAFE OPERATION MAKE SURE THATYOU 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 ACLEAN DRYABSORBENT CLOTH TO REMOVE DIRTAND MOSISTURE 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 AWAY AS POSSIBLE FROM BODYAND DO NOT PERMIT DIRECT CONTACT
DURING USE. CONTACTAT THE BURST CAN CAUSE BODILY INJECTION AND SEVERE
PERSONAL INJURY.
4. HANDLE AND ROUTE HOSE CAREFULLY TO AVOID 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 USETHIS 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 PROPERAND 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 AWAY AS POSSIBLE FROM BODYAND DO NOT PERMIT DIRECT CONTACT
DURING USE. CONTACTAT THE BURST CAN CAUSE BODILY INJECTION AND SEVERE
PERSONAL INJURY.
4. HANDLE AND ROUTE HOSE CAREFULLY TO AVOID 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 OR ANY DEVICE TOATTEMPTTO MEND THE HOSE.
6. AFTER EACH USE STORE IN ACLEAN DRY AREA.
SEE OTHER SIDE
SIDE 1 SIDE 2

12
HTMA REQUIREMENTS
FLOW RATE
TOOL OPERATING PRESSURE
(at the power supply outlet)
SYSTEM RELIEF VALVE SETTING
(at the power supply outlet)
MAXIMUM BACK PRESSURE
(at tool end of the return hose)
Measured at a max. fluid viscosity of:
(at min. operating temperature)
TEMPERATURE
Sufficient heat rejection capacity
to limit max. fluid temperature to:
(at max. expected ambient temperature)
Min. cooling capacity
at a temperature difference of
between ambient and fluid temps
NOTE:
Do not operate the tool at oil temperatures above 140° F (60° C). Operation at higher temperatures can cause operator
discomfort at the tool.
FILTER
Min. full-flow filtration
Sized for flow of at least:
(For cold temp. startup and max. dirt-holding capacity)
HYDRAULIC FLUID
Petroleum based
(premium grade, anti-wear, non-conductive)
VISCOSITY
(at min. and max. operating temps)
NOTE:
When choosing hydraulic fluid, the expected oil temperature extremes that will be experienced in service determine the
most suitable temperature viscosity characteristics. Hydraulic fluids with a viscosity index over 140 will meet the require-
ments over a wide range of operating temperatures.
*SSU = Saybolt Seconds Universal
4-6 gpm 7-9 gpm 11-13 gpm 9-10.5 gpm
(15-23 lpm) (26-34 lpm) (42-49 lpm) (34-40 lpm)
2000 psi 2000 psi 2000 psi 2000 psi
(138 bar) (138 bar) (138 bar) (138 bar)
2100-2250 psi 2100-2250 psi 2100-2250 psi 2200-2300 psi
(145-155 bar) (145-155 bar) (145-155 bar) (152-159 bar)
250 psi 250 psi 250 psi 250 psi
(17 bar) (17 bar) (17 bar) (17 bar)
400 ssu* 400 ssu* 400 ssu* 400 ssu*
(82 centistokes)(82 centistokes)(82 centistokes)(82 centistokes)
140° F 140° F 140° F 140° F
(60° C) (60° C) (60° C) (60° C)
3 hp 5 hp 7 hp 6 hp
(2.24 kW) (3.73 kW) (4.47 kW) (5.22 kW)
40° F 40° F 40° F 40° F
(22° C) (22° C) (22° C) (22° C)
25 microns 25 microns 25 microns 25 microns
30 gpm 30 gpm 30 gpm 30 gpm
(114 lpm) (114 lpm) (114 lpm) (114 lpm)
100-400 ssu* 100-400 ssu* 100-400 ssu* 100-400 ssu*
(20-82 centistokes)
TOOL CATEGORY
HYDRAULIC SYSTEM
REQUIREMENTS TYPE 1 TYPE II TYPE III TYPE RR
NOTE:
These are general hydraulic system requirements. See tool Specification page for tool specific requirements.

13
SETTING FOR OPEN-CENTER (OC) OR
CLOSED-CENTER (CC) OPERATION
To set the tool for OC system operation turn the selector
screw located in the top of the valve spool fully out (coun-
ter-clockwise) until it hits the stop.
To set the tool for CC system operation turn the selector
screw located in the top of the valve spool fully in (clock-
wise) until it bottoms.
TO DISABLE DUAL SPOOL OPERATION
AND CONVERT TO OC ONLY OPERATION
Turn the selector screw located in the top of the valve spool
fully out (counter-clockwise) until it hits the stop.
2. Insert the small plug from the kit (furnished with the tool)
into the hole located in the top of the selector screw. Tap
the plug down using a small punch and hammer. DO NOT
USE ANY ADHESIVES.
TO DISABLE DUAL SPOOL OPERATION
AND CONVERT TO CC ONLY OPERATION
1. Turn the selector screw located in the top of the valve
spool fully in (clockwise) until it bottoms.
2. Insert the small plug from the kit (furnished with the tool)
into the hole located in the top of the selector screw. Tap
the plug down using a small punch and hammer. DO NOT
USE ANY ADHESIVES.
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
minimize 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 posi-
tion to operate the tool.
Note:
If uncoupled hoses are left in the sun, pressure in-
crease inside the hoses can make them difficult to
connect. If possible, connect the free ends of the hoses
together.
OPERATION
PREOPERATION PROCEDURES
CHECK POWER SOURCE
1. Using a calibrated flowmeter and pressure gauge, make
sure the hydraulic power source develops a flow of 4-6 gpm
/15-22 lpm at 1500-2000 psi/105/140 bar for the CS25 or a
flow of 7-9 gpm/26-34 lpm at 1000-2000 psi/70-140 bar for
the CS28.
2. Make sure the power source is equipped with a relief
valve set to open at 2100-2250 psi/145-155 bar.
3. Check that the dual spool valve is set to the hydrau-
lic system type (open-center (CC) or closed-center (CC)
operation).
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.
SETTING THE DUAL SPOOL FOR OPERATION
This tool is furnished with a on-off spool commonly
referred to as a "dual spool" which permits adjust-
ment so the tool may be operated on either a open-
center hydraulic system or a closed-center hydraulic
system. The dual spool is normally set to the open-
center (OC) position at time of manufacture. The
dual spool can also be disabled so that the tool may
be set to open-center only operation or closed-center
only operation. For more details, please refer to the
following instructions.

14
Watch for falling limbs.
4. Make a diagonal cut down to meet the horizontal cut and
remove the wood from the notch.
FELLING OR BACK CUT
5. the felling or back cut is made on the side opposite and
at least 2-inches above the horizontal undercut (the felling
cut is made higher as the size of the tree increases).
6. Start the cut horizontally parallel to the notch cut. Cut un-
til the saw is about 1- or 2-inches from the notch. DO NOT
CUT THROUGH THE NOTCH.
Note:
The uncut wood between the felling and notch cuts is
called the hinge. The hinge controls the fall of the tree
and should be of uniform thickness.
7. As the saw nears the back cut, watch the tree-top and
the cut for signs of meovement. Be alert as soon as the
tree starts to move, turn off the saw, pull it from the tree and
move away quickly on your escape route.
Figure 1. Felling a Tree
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.
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 adivce 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. 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 a tree. The tree should fall the way the string is
leaning. Trees that are straight (leaning no more than 5o)
generall can be felled in any direction.
2. 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.
3. 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.
4. 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
chain and bar damage. See the MAINTENANCE AND AD-
JUSTMENTS section in this manual for chain replacement,
sharpening or adjustment procedures.
FELLING OR TOPPING
1. Observe safety precautions.
NOTCHING OR UNDERCUTTING
2. The notching or undercutting cut is made on the side you
want the gree to fall.
3. Start the cut horizontally. Cut to about one-quarter of the
tree’s diameter.
WARNING
OPERATION
WARNING

15
OPERATION
2. Use both hands. Keep a firm grip.
3. Be alert for kickback. Do not allow the tip of the bar to
touch 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 can-
not 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 the trees are able to stand the strain of a topping pro-
cedure. If not, some other means of lowering the branches
should be provided, such as a tree crane.
4. If large limbs are lowered 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.
LIMING 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 haz-
ardous.
COLD WEATHER OPERATION
If the pole chain saw is to be used during cold weather,
preheat the hydraulic fluid at low engine speed. When us-
ing the normally recommended fluids, fluid should be at or
above 50º F/10º C (400 ssu/82 centistokes) before use.
Damage to the hydraulic system or pole chain saw can
result from use with fluid that is too viscous or thick.
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.
• Keep the 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.
AUTOMATIC OILER ADJUSTMENT
1. Observe all safety precautions.
2. The automatic oiler is located in the front of the motor
housing. The oil volume can be adjusted with a 3/16-inch
allen wrench by turning the plug counterclockwise to in-

16
crease output and turning clockwise to decrease output.
Note: Oil output varies proportionally to load and oper-
ating pressure. It should be adequate for most opera-
tions as adjusted from the factory.
3. Initial oiler adjustment is made with the saw bar and
chain removed.
The following step can be hazardous. Failure to heed the
instructions could result in serious injury.
4. Connect the pole chain saw to a hydraulic power source
and check for proper operation. READ THE FOLLOWING
CAREFULLY BEFORE PROCEEDING.
a. Make sure the hydraulic power source is running at the
lowest gpm/lpm rate it can while still producing full pres-
sure.
b. Secure the pole chain saw firmly in a bench vise and
place the correct size wrench on the 1/2-20 nut securing
the sprocket.
c. Connect the hydraulic power source to the pole chain
saw and turn the circuit control valve to the “ON” position.
d. With a firm grip on the pole chain saw and wrench,
SLOWLY squeeze the trigger to activate it.
e. Adjust the oiler for a flow of approximately one drop
every one to two seconds.
f. Release the trigger and remove the wrench.
CHAIN TENSION ADJUSTMENT
1. Observe all safety precautions.
2. When the chain appears loose, lubricate it well and let it
cool for a few minutes to allow for contraction of the chain.
Disconnect the pole chain saw from its hydraulic power
source.
Note: Perform steps 3 through 6 while holding the top
end of the saw bar upward.
3. Loosen the two saw bar nuts slightly.
4. Tighten the chain tension screw until the bottoms of the
tie straps and cutters just touch the saw bar rails of the bot-
tom of the saw bar.
5. Pull the chain around the saw bar by hand to be sure it
fits the sprocket and saw bar properly. The chain should
move easily.
6. Hold the saw bar tip up as you tighten the two saw bar
nuts.
7. Connect the pole chain saw to a hydraulic power source.
Operate the chain at low speed (gpm) for a minute or two
while pumping extra oil on the chain.
8. Stop the pole chain saw and check the tension.
If it has loosened, disconnect the pole chain saw from the
hydraulic power source and perform steps 3 through 6
again to tighten the chain to the correct tension.
9. Reconnect the pole chain saw to the hydraulic power
source. Operate the saw and make a few easy cuts. Check
chain tension and readjust if necessary (disconnect it from
the hydraulic power source and perform steps 3 through 6).
Note: Never break in a new chain under a heavy cutting
load.
10. Watch the chain tension carefully for the first half-hour
of cutting.

17
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 couples and cause overheating
of the hydraulic system.
• Always store the tool in a clean dry space, safe from damage or pilferage.
• 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 Stanley
Hydraulic Tools. Supply hoses must have a minimum working pressure rating of 2500 psi/172 bar.
• Do not exceed the rated flow (see Specifications) in this manual for correct flow rate and
model number. Rapid failure of the internal seals may result.
• Always keep critical tool markings, such as warning stickers 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.

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 know to be accurate. check the flow with the
hydraulic fluid temperature at least 80oF/27oC.
PROBLEM CAUSE SOLUTION
Cuts slow. Insufficient fluid flow or low relief valve
setting. Adjust fluid flow to proper gpm. for op- timum performance adjust relief vlave
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 for CS28. 7-9
gpm/26-34 lpm at 1000 psi/70 bar
minimum for the CS25.
Coupler or hoses blocked. Remove obstruction.
Mechanical failure. Disassemble tool and inspect for dam-
age.
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
Capacity
CS25 and CS28............................................................................................12 and 15 inch / 30 and 38 cm Cut Lengths
Weight (w/o Bar and Chain) ..............................................................................................................................8.5 lbs / 4 kg
Overall Length
10 inch Bar .........................................................................................................................................75 inches / 190 cm
12 inch Bar .........................................................................................................................................90 inches / 229 cm
15 inch Bar .........................................................................................................................................92 inches / 234 cm
Pressure
CS25....................................................................................................................................1500-2000 psi / 105-140 bar
CS28......................................................................................................................................1000-2000 psi / 70-140 bar
Flow Range
CS25.................................................................................................................................................4-6 gpm / 15-22 lpm
CS28.................................................................................................................................................7-9 gpm / 26-34 lpm
Optimum Flow
CS25..........................................................................................................................................................5 gpm / 19 lpm
CS28..........................................................................................................................................................8 gpm / 30 lpm
Porting ...........................................................................................................................................-8 (1/2 inch) SAE O-Ring
Connect Size and Type .............................................................................................................................. Adapter w/ Male
Hose Whips.......................................................................................................................................................................No
ACCESSORIES
Description Part Number
12 inch / 30 cm Saw Bar..............................................................................................................................................08347
15 inch / 38 cm Saw Bar..............................................................................................................................................07638
Saw Holster................................................................................................................................................................. 05096
Saw Chain for 12 inch / 30 cm Bar 34SL (56 Drive Links) .......................................................................................... 08348
Saw Chain for 15 inch / 38 cm Bar 34SL (64 Drive Links) .......................................................................................... 07641
Sprocket 7T, .325 Pitch................................................................................................................................................ 07629
Grease Gun for Roller & Sprocket Nose Bars............................................................................................................. 05132
Chain Guard for 18 inch / 46 cm Bar Length............................................................................................................... 05144
File Guides ................................................................................................................................................................. 07935
Flat File.........................................................................................................................................................................11294
Scrench ........................................................................................................................................................................11464
SERVICE TOOLS
O-Ring Tool Kit ............................................................................................................................................................ 04337
SPECIFICATIONS

20
CS25/28 PARTS ILLUSTRATION
64

21
CS25/28 PARTS LIST
Item Part No. Qty Description
1 19212 1 Capscrew
2 65834 1 Chain Guard
3 07631 2 Nut
408348
07641 1 1Saw Chain - 12 inch Saw Chain - 15 inch
5 07621 1 Chain Guide Plate
6 07630 2 Stud
7 07620 1 Bar Adjustment Nut
8 07632 1 Screw
9 04044 2 Needle Roller
10 04106 2 Driver Gear (8 gpm)
07832 2 Driver Gear (5 gpm)
11 ---- -- No Item
12 07652 1 Rear Gear Housing Assy. (8 gpm)
07834 1 Rear Gear Housing Assy. (5 gpm)
13 00753 8 Capscrew
14 04041 4 Bushing
15 ---- -- No Item
16 07612 1 Idler Shaft
17 00020 1 O-ring
18 66201 1 Motor Housing Service Assy.
19 16668 4 O-ring
20 00453 1 Nut
21 07617 1 Washer
22 07629 1 Rim Sprocket
23 07616 1 Sprocket Adapter
24 06635 1 Retaining Ring
25 00335 1 Bearing
26 04856 1 Retaining Ring
27 07615 1 Seal Back-up Washer
28 04037 1 Seal
29 60975 1 Motor Shaft
30 65839
65840 1 1Name Tag - CS25 Name Tag - CS28
31 18089 6 Capscrew
32
65937
60973
62237
65936
1
Outer Tube Assy - CS258X1
Outer Tube Assy - CS288X1
Outer Tube Assy - CS288X2
Outer Tube Assy - CS258X2
33 00042
62238 2Oil Tube Assy - CS2X8X1 Oil Tube Assy - CS2X8X2
34 NA 1 Dielectric Test Decal
35 15863 1 Warning Decal
36 05153 1 Stanley Decal
37 03786
03782 17-9 GPM Decal 4-6 GPM Decal
38 15863 1 Danger Decal
39 12412 1 Electric Warning Decal
40 24833 1 Handle Assy
Item Part No. Qty Description
41 07627 1 O-ring
42 19868 1 Spring
43 51183 1 Trigger
44 01534 1 Roll Pin
45 51182 1 Trigger Guard
46 22147 2 Capscrew
47 00936 2 Adapter
48 01605 2 O-ring
49 07626 1 O-ring
50 19874 1 Valve Spool
51 00026 1 O-ring
52 19875 1 Selector Spool
53 16070 1 Retaining Ring
54 26414 1 Lock Out Kit
55 08347
07638 1Saw Bar - 12 in. Saw Bar - 15 in.
56 02921 1 Automatic Oiler
57 01362 1 O-Ring
58 06971 1 Lock Nut
59 02634 2 Washer
60 07622 1 Chain Guide
61 04746 1 Automatic Oiler Decal
62 34685 1 Sound Power Level Decal (CE Only)
63 11206
11207 1Circuit Type C Decal (CE Only) Circuit Type D Decal (CE Only)
64 28323 1 CE Decal (CE Only)
65 28409 1 Composite Safety Decal (CE Only)
03693 1 Closed-Center Decal (Not Illustrated)
21053 1 Seal Kit