Greenlee H4910A User manual

INSTRUCTION MANUAL
H4910A
Pole Puller
99912619 REV 4 © 2010 Greenlee Textron Inc. 8/10
Read and understand all of the instructions and
safety information in this manual before operating
or servicing this tool.
Register this product at www.greenlee.com

H4910A Pole Puller
Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
2
Description
The Greenlee Utility H4910A Pole Puller is a heavy-duty,
portable, hydraulic-powered tool that can be used to
pull poles in conned areas, next to buildings, or out in
the open.
Featuring built-in carrying handles and proof-certied
alloy chains, the pole puller may be used with open-
center or closed-center hydraulic systems.
Safety
Safety is essential in the use and maintenance of
Greenlee Utility tools and equipment. This manual and
any markings on the tool provide information for avoid-
ing hazards and unsafe practices related to the use of
this tool. Observe all of the safety information provided.
Purpose of this Manual
This manual is intended to familiarize all personnel with
the safe operation and maintenance procedures for the
following Greenlee Utility tool:
H4910A (42239) Pole Puller
Keep this manual available to all personnel.
Replacement manuals are available upon request at no
charge at www.greenlee.com.
Other Publications
SAE Standard J1273 (Hose and Hose Assemblies):
Publication 99930323
All specications are nominal and may change as design
improvements occur. Greenlee Textron Inc. shall not be liable for
damages resulting from misapplication or misuse of its products.
KEEP THIS MANUAL
Table of Contents
Description .................................................................... 2
Safety ............................................................................ 2
Purpose of this Manual ................................................. 2
Other Publications......................................................... 2
Important Safety Information .....................................3–4
Identication.................................................................. 5
Specications.............................................................6–7
Hoses and Fittings ........................................................ 7
Hose Connections......................................................... 7
Operation....................................................................... 8
Maintenance.................................................................. 9
Troubleshooting......................................................10–11
Disassembly ................................................................ 12
Inspection.................................................................... 13
Assembly..................................................................... 13
Illustrations and Parts Lists ....................................14–15

H4910A Pole Puller
Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
3
IMPORTANT SAFETY INFORMATION
SAFETY
ALERT
SYMBOL
This symbol is used to call your attention to hazards
or unsafe practices which could result in an injury or
property damage. The signal word, dened below,
indicates the severity of the hazard. The message
after the signal word provides information for pre-
venting or avoiding the hazard.
Immediate hazards which, if not avoided, WILL result
in severe injury or death.
Hazards which, if not avoided, COULD result in
severe injury or death.
Hazards or unsafe practices which, if not avoided,
MAY result in injury or property damage.
Read and understand all of the
instructions and safety information
in this manual before operating or
servicing this tool.
Failure to observe this warning
could result in severe injury or death.
Electric shock hazard:
This tool is not insulated. When
using this unit near energized
electrical lines, use only certied
nonconductive hoses and proper
personal protective equipment.
Failure to observe this warning
could result in severe injury or death.
Pinch points:
Keep hands away from moving parts
during operation.
• Support or secure pole that is being removed. An
unsecured pole can fall.
• Use only 5/8" alloy chains that have a minimum
working load limit of 9071 kg (20,000 lb). Other
chains can break during operation.
• Do not change accessories, inspect, adjust, or
clean tool when it is connected to a power source.
Accidental startup can result in serious injury.
Failure to observe these warnings could result in
severe injury or death.
Skin injection hazard:
• Do not use hands to check for
leaks.
• Depressurize the hydraulic system
before servicing.
Oil under pressure easily punc-
tures skin, causing serious injury,
gangrene, or death. If you are injured
by escaping oil, seek medical atten-
tion immediately.
Wear eye protection when operating
or servicing this tool.
Failure to wear eye protection could
result in serious eye injury from
ying debris or hydraulic oil.

H4910A Pole Puller
Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
4
Wear a hard hat when using this
tool.
Failure to observe this warning
could result in severe injury or death.
Wear hearing protection when using
this tool.
Long-term exposure to high noise
levels could result in hearing loss.
Wear foot protection when using this
tool.
Failure to observe this warning
could result in serious injury.
Tool and other components may be
hot during and after operation. Allow
to cool before handling, or handle
with heat-resistant gloves.
Failure to observe this warning
could result in severe injury.
Do not exceed the following hydraulic power source
maximums:
• Hydraulic ow: 56.8 l/min (15 gpm)
• Pressure relief: 148.3 bar (2150 psi)
• Back pressure: 13.8 bar (200 psi)
Failure to observe this warning could result in severe
injury or death.
Do not disconnect tool, hoses, or ttings while the
power source is running or if the hydraulic uid is
hot. Hot hydraulic uid can cause serious burns.
Do not reverse hydraulic ow. Operation with
hydraulic ow reversed can cause tool malfunction.
Connect the pressure (supply) hose and tank (return)
hose to the proper ports.
Failure to observe this warning could result in severe
injury or death.
• Inspect tool before use. Replace any worn,
damaged, or missing parts. A damaged or
improperly assembled tool can malfunction, injur-
ing nearby personnel.
• Inspect the hydraulic hoses and couplers every
operating day. Repair or replace if leakage, crack-
ing, wear, or damage is evident. Damaged hoses
or couplers can fail, resulting in injury or property
damage.
• Use this tool for manufacturer’s intended purpose
only. Use other than that which is described in this
manual can result in injury or property damage.
• Make sure that all bystanders are clear of the work
area when operating the tool. Nearby personnel
can be injured by ying debris.
Failure to observe these precautions may result in
injury.
Procedure for connecting or disconnecting hydraulic
hoses, ttings, or components:
1. Move the ow lever on the hydraulic power
source to the off position.
2. Stop the hydraulic power source.
3. Follow the sequence under “Hose Connections”
to prevent pressure buildup. In case some
pressure has built up, loosen hoses, ttings, or
components slowly.
Note: Keep all decals clean and legible, and replace
when necessary.
IMPORTANT SAFETY INFORMATION

H4910A Pole Puller
Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
5
Identification
1. Cylinder
2. Base
3. Upper Chain
4. Lower Chain
5. Upper Chain Lug
6. Lower Chain Lugs
7. Handles
8. Pressure Port P
9. Return Port T
10. Serial Number
3
1
6
4
2
8
7
10
5
9
Pole Puller

H4910A Pole Puller
Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
6
Pole Puller
Type of Hydraulic System.........................Open-center or
closed-center
Hydraulic Ports
Pressure .............................................. 1/2 female NPT
Return ................................................. 1/2 female NPT
Lift Capacity ....................................56,000 lb @ 2000 psi
Stroke .......................................................42.5 cm (16.8")
Mass/Weight
Cylinder Only...................................... 41.7 kg (92.0 lb)
Chains and Base.............................. 63.5 kg (140.0 lb)
Width (with base)......................................38.0 cm (15.0")
Height (with base)
Retracted .............................................80.0 cm (31.5")
Extended............................................115.0 cm (45.3")
Chains
Use only 5/8" alloy chains that have a minimum
working load limit of 9071 kg (20,000 lb). Other
chains can break during operation.
Failure to observe this warning could result in severe
injury or death.
Chains are furnished with the tool. Replacement chains
are available from Greenlee Utility as repair parts.
Contact an authorized Greenlee Utility service center.
Any chain used with this tool must meet the following
requirements:
Chain–alloy ...................................................1.6 cm (5/8")
Minimum Working Load Limit............ 9071 kg (20,000 lb)
Hydraulic Power Source
Do not exceed the following hydraulic power source
maximums:
• Hydraulic ow: 56.8 l/min (15 gpm)
• Pressure relief: 148.3 bar (2150 psi)
• Back pressure: 13.8 bar (200 psi)
Failure to observe this warning could result in severe
injury or death.
Type of Hydraulic System......................... Open-center or
closed-center
Flow
Minimum ......................................... 15.1 l/min (4 gpm)
Recommended................................ 26.5 l/min (7 gpm)
Maximum ...................................... 56.8 l/min (15 gpm)
Operating Pressure
Minimum .......................................... 20.7 bar (300 psi)
Maximum ........................................ 138 bar (2000 psi)
Reservoir Capacity (minimum) ......................18.9 l (5 gal)
Filtration.............................................10 micron (nominal)
Pressure Relief Setting ..................... 148.3 bar (2150 psi)
Back Pressure (maximum)* .................. 13.8 bar (200 psi)
* 13.8 bar (200 psi) is the maximum agreed stan-
dard back pressure for the HTMA (Hydraulic Tool
Manufacturers Association). Greenlee Utility tools
will operate satisfactorily at this standard.
1. Maximum hydraulic uid temperature must not
exceed 60 °C (140 °F). A sufcient oil cooling capac-
ity is needed to limit the hydraulic uid temperature.
2. Hydraulic ow must not exceed 56.8 l/min (15 gpm).
Install a ow meter in the return line to measure the
rate of hydraulic ow before using the tool.
3. Pressure relief valve setting must not exceed
14.8 bar (2150 psi) at the tool’s maximum ow.
Locate the pressure relief valve in the supply circuit
to limit excessive hydraulic pressure to the tool.
Specifications

H4910A Pole Puller
Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
7
Specifications (cont’d)
Hydraulic Schematic
FILTER
(10 micron)
COOLER
RELIEF
VALVE
138 bar
(2000 psi)
CONTROL
VALVE
FLOW METER CONTROL
VALVE
T
P
TOOL
RESERVOIR
PUMP
POWER SOURCE
T P
Recommended Hydraulic Fluids
Electric shock hazard:
When using this unit near ener-
gized electrical lines, select and
maintain the hydraulic uid to meet
the minimum dielectric standards
required by your safety department.
Failure to observe this warning
could result in severe injury or death.
Use any non-detergent, petroleum-based hydraulic
uid which meets the following specications or HTMA
specications.
S.U.S. @
38 °C (100 °F).............................................. 140 to 225
99 °C (210 °F)........................................... 40 minimum
Flash Point................................ 170 °C (340 °F) minimum
Pour Point................................. –34 °C (–30 °F) minimum
Installation and Maintenance
Refer to publication 99930323, SAE J1273
(Hose and Hose Assemblies).
Replacement
Refer to a Greenlee Utility catalog or publication
99910322, Low Pressure Quick Couplers, Adapters, and
Hoses.
Do not disconnect tool, hoses, or ttings while the
power source is running or if the hydraulic uid is
hot. Hot hydraulic uid can cause serious burns.
Hose Connections
Control Valve
Refer to the Hydraulic Schematic under
“Specications.”
A three-position, four-way, directional control valve must
be between the power source and tool. Verify that valve
type, ow, and pressure rating is compatible with power
source specications.
Connecting Hoses
1. Move the ow lever on the hydraulic power source
to the off position.
2. Stop the hydraulic power source.
3. Connect the return (tank) hose from the control
valve (port T) to the tool (port T).
Note: Return (tank) hose should always be con-
nected before pressure (supply) hose connection to
prevent pressure buildup inside the tool.
4. Connect the supply (pressure) hose from the control
valve (port P) to the tool (port P).
Disconnecting Hoses
1. Move the ow lever on the hydraulic power source
to the off position.
2. Stop the hydraulic power source.
3. Disconnect the supply (pressure) hose from the
control valve (port P) to the tool (port P).
Note: Supply (pressure) hose should always be dis-
connected before return (tank) hose disconnection
to prevent pressure buildup inside the tool.
4. Disconnect the return (tank) hose from the control
valve port (port T) to the tool (port T).
5. Install dust caps over the ports to prevent
contamination.
Hoses and Fittings

H4910A Pole Puller
Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
8
Operation
Electric shock hazard:
This tool is not insulated. When
using this unit near energized
electrical lines, use only certied
nonconductive hoses and proper
personal protective equipment.
Failure to observe this warning
could result in severe injury or death.
Pinch points:
Keep hands away from moving parts
during operation.
Do not disconnect tool, hoses, or ttings while the
power source is running or if the hydraulic uid is
hot. Hot hydraulic uid can cause serious burns.
• Support or secure pole that is being removed. An
unsecured pole can fall.
• Use only 5/8" alloy chains that have a minimum
working load limit of 9071 kg (20,000 lb). Other
chains can break during operation.
• Do not change accessories, inspect, adjust, or
clean tool when it is connected to a power source.
Accidental startup can result in serious injury.
Failure to observe these warnings could result in
severe injury or death.
Pre-Operation
Refer to the “Identication” section and the Hydraulic
Schematic under “Specications.”
1. Stop the power source.
2. Connect hydraulic hoses from control valve to pole
puller. Refer to “Hose Connections.” Start power
source.
3. It is recommended that power source be allowed
to run (idle) for a few minutes to warm hydraulic
reservoir uid. Actuating tool intermittently will
reduce the time required to warm uid to an efcient
operating temperature.
4. Cycle tool full stroke to remove any trapped air from
tool and hoses. Stop power source. Check hydraulic
uid level in power source reservoir.
Operation
Refer to the “Identication” section.
1. Pole that is to be removed must be supported or
secured before and while pulling pole from ground.
2. Place pole puller base (2) next to pole that is to be
pulled, preferably on level ground. Set pole puller
cylinder (1) on base.
3. Attach upper chain (3) by placing large loop over
upper chain lug (5) of pole cylinder (1). Loop chain
around pole and hook chain into upper lug. Allow
some chain slack to permit puller to slide down pole
after it completes pulling stroke.
4. Attach lower chain (4) by hooking one end of chain
into one lower chain lug (6), looping chain around
pole and hooking chain into opposite lower chain
lug (6).
5. Start power source, and actuate pole puller as many
times as necessary to remove pole.
Note: Chains may need to be adjusted as pole
diameter increases. Stop power source before
adjusting chains.
6. Stop power source. Remove upper and lower
chains from pole.

H4910A Pole Puller
Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
9
Maintenance
Wear eye protection when operating
or servicing this tool.
Failure to wear eye protection could
result in serious eye injury from
ying debris or hydraulic oil.
Do not change accessories, inspect, adjust, or
clean tool when it is connected to a power source.
Accidental startup can result in serious injury.
Failure to observe this warning could result in severe
injury or death.
Inspect the hydraulic hoses and couplers every
operating day. Repair or replace if leakage, cracking,
wear, or damage is evident. Damaged hoses or cou-
plers can fail, resulting in injury or property damage.
Use this maintenance schedule to maximize the tool’s
service life.
Notes: Keep all decals clean and legible, and replace
when necessary.
When disposing of any components (hydraulic hoses,
hydraulic fluid, worn parts, etc.), do so in accordance
with federal, state, and local laws or ordinances.
Daily
1. Wipe all tool surfaces clean.
2. Inspect the tool for signs of leaks, cracks, wear,
or damage. Repair or replace components if
necessary.
3. Inspect the hydraulic hoses and ttings for signs
of leaks, cracks, wear, or damage. Replace if
necessary.
4. Install dust caps over the hydraulic ports when the
tool is disconnected.
Monthly
Perform a thorough inspection of the hydraulic hoses
and ttings as described in publication 99930323,
SAE J1273 (Hose and Hose Assemblies).
Annually
Some organizations require an annual inspection.
Have the tool inspected by an authorized Greenlee
Utility service center.

H4910A Pole Puller
Greenlee / A Textron Company 4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
10
Troubleshooting
Before You Begin
1. Tool must be connected to the correct power
source system. Refer to “Specications” for type of
hydraulic system required. Verify the power source
hydraulic system.
2. Verify that pressure and return hydraulic hoses are
connected properly to the tool and power source
ports.
3. Power source reservoir must be lled to FULL level
with hydraulic uid.
4. Start the power source. All power source shut-
off devices must be engaged or opened (clutch
engaged, separate ON/OFF valves open, etc.).
5. After verifying all of the above, check the tool to see
if it operates.
If the tool does not operate, it will be necessary to
pinpoint the tool, hoses, or power source as the
problem area. The following steps will help to deter-
mine the problem area.
Determining the Problem Area
1. Check power source ow and pressure if the proper
gauges and tools are available. If these items are
not available, proceed to Step 2.
2. Stop power source. Disconnect existing tool from
the hydraulic hoses and power source.
3. Connect a known working tool to the hoses and
power source. See the tool’s operator’s manual for
correct hook-up procedure. Start the power source.
• If the known working tool operates, the problem is
in the disconnected tool. Refer to the
Troubleshooting chart in this manual.
• If the known working tool does not operate, the
problem is likely to be in the hoses or the power
source. Proceed to Step 4.
4. Stop the power source. Disconnect the existing
hydraulic hoses from the known working tool and
power source.
5. Connect a different set of hoses to the known
working tool and power source. Start the power
source.
• If the known working tool operates with the
different set of hydraulic hoses, the problem is in
the disconnected hoses.
• If the known working tool does not operate,
the problem is in the power source. Refer to
your power source operator’s manual for
troubleshooting.