RHINO GPD-40 Fence Pro User manual
Highest Quality Post Drivers and Post Pullers
Highest Quality Post Drivers and Post Pullers
Form No. 301800-07/2014
Form No. 301800-07/2014
© 2013, 2014 Rhino Tool Company, Inc.
© 2013, 2014 Rhino Tool Company, Inc.
Rhino Tool Company
620 Andrews Avenue
Kewanee, IL 61443
P: 309.853.5555 or Toll Free 866-707-1808
F:309.856.5905
Rhino Tool Company
620 Andrews Avenue
Kewanee, IL 61443
P: 309.853.5555 or Toll Free 866-707-1808
F:309.856.5905
Manufacturing Quality Post Drivers and Post Pullers Since 1977
Manufacturing Quality Post Drivers and Post Pullers Since 1977
OWNERS MANUAL
OWNERS MANUAL
GPD-40
Gas Powered Driver
Fence Pro™
GPD-40
Gas Powered Driver
Fence Pro™
i
i
Your safety, and the safety of others, is very important. The
proper and safe use of your Rhino® post driver is an important
responsibility and should be taken
seriously.
This entire book is lled with
important safety information. Please
read it carefully.
Keep this owner’s manual handy, so you
can refer to it at any time. This owner’s
manual is considered a permanent part of
the post driver and should remain with the
post driver if resold.
The information and specications includ-
ed in this publication were in effect at the
time of approval for printing. Rhino Tool
Company, Inc. reserves the right, however,
to discontinue or change specications or
design at any time without notice and with-
out incurring any obligation whatever. No
part of this publication may be reproduced
without written permission from Rhino
Tool Company.
To help you make informed decisions about safety, you will nd
important safety information in a variety of forms, including:
• Safety Labels on the post driver
• Safety Messages Preceded by a safety alert symbol and one of
three signal words, DANGER, WARNING, or CAUTION.
These signal words mean:
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
Immediate hazards that will result in
severe personal injury or death.
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
Hazards or unsafe practices that could
result in personal injury.
!WARNING
!DANGER
!
CAUTION
IMPORTANT
NOTE
Hazards or unsafe practices that could result in injury,
product or property damage.
• Safety Headings such as IMPORTANT SAFETY
INFORMATION.
• Safety Section such as POST DRIVER SAFETY.
• Instructions how to use this post driver correctly and safely.
Your safety, and the safety of others, is very important. The
proper and safe use of your Rhino® post driver is an important
responsibility and should be taken
seriously.
This entire book is lled with
important safety information. Please
read it carefully.
Keep this owner’s manual handy, so you
can refer to it at any time. This owner’s
manual is considered a permanent part of
the post driver and should remain with the
post driver if resold.
The information and specications includ-
ed in this publication were in effect at the
time of approval for printing. Rhino Tool
Company, Inc. reserves the right, however,
to discontinue or change specications or
design at any time without notice and with-
out incurring any obligation whatever. No
part of this publication may be reproduced
without written permission from Rhino
Tool Company.
To help you make informed decisions about safety, you will nd
important safety information in a variety of forms, including:
• Safety Labels on the post driver
• Safety Messages Preceded by a safety alert symbol and one of
three signal words, DANGER, WARNING, or CAUTION.
These signal words mean:
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
Immediate hazards that will result in
severe personal injury or death.
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
Hazards or unsafe practices that could
result in personal injury.
!WARNING
!DANGER
!
CAUTION
IMPORTANT
NOTE
Hazards or unsafe practices that could result in injury,
product or property damage.
• Safety Headings such as IMPORTANT SAFETY
INFORMATION.
• Safety Section such as POST DRIVER SAFETY.
• Instructions how to use this post driver correctly and safely.
TAKE SAFETY SERIOUSLY
TAKE SAFETY SERIOUSLY
GPD-40 Fence Pro™Trouble Shooting
GPD-40 Fence Pro™Trouble Shooting
21
21
Post lodged in driver with adapter installed: Turn off the engine. Remove the Chuck-Lok™System’s locking nut from the master chuck and slide
down the post. Using the handles, lift postdriver upward, allowing the post adapter to slide out. If the pressure from the ared post does not allow you
to lift driver off the post, locate the pry gaps on the adapter base and use a athead screwdriver to pry them downward. Be careful not to damage the
master chuck threads. Once loosened, lift using the postdriver handles. As the two-piece adapter frees from the chuck tube they separate from the post.
Slide the locking nut off the post, reinsert the adapter, apply the locking nut and resume post driving.
Post lodged in master chuck: Remove the four 5/16” lower body bolts and separate the lower body casting from the driver body. Slide the lower body
casting down the post to expose the ared top of the post. With the proper cutting tool for the type of post, cut through the post below the ared portion.
Once the ared portion is removed, slide the lower body casting off the post and reassemble it to the driver. Please follow bolt tightening procedure and
use thread locker solution.
Recommendation: Do not use “thin-wall” or light gauge round post with the GPD-40 Ranch Pro™. It is very likely to flare this type of post at full throttle.
Drives post slow or sluggish engine performance: Typically this is resulting from improper driver storage or over-lling the oil causing the oil to
seep into the combustion chamber. Turn off the engine. Position the driver vertically, remove the dipstick to check oil level. (See page 6) If you need to
remove some oil, dispose of it properly. If oil is at proper level, follow the procedure listed in “Pull-start is frozen or hard to pull.” It also is good practice
to wipe clean the engine after use.
Pull-start is frozen or hard to pull: This typically results from oil seeping into the combustion chamber from improper driver storage or overlling the
oil reservoir of the engine. Remove spark plug and pull hand grip a several times until it pulls freely. Replace the spark plug. Check the oil level in oil
reservoir to ensure proper level (page 6). Follow starting procedure. It is not unusual, for blue smoke to be emitted from the engine, let the engine run
until smoke clears.
Proper Storage: When storing your GPD-40, do not lay it horizontally on the driver side or resting on the engine. If the unit cannot be stored securely in
the upright position, place the chuck on the at surface, lean it toward the engine side until it is supported by the shroud and chuck. This will position the
driver on an angle with the top handle at the topmost point.
Other problems or technical questions: Have your serial number handy and contact Rhino Tool Company. Phone: 309.853.5555 or Toll Free 866-
Post lodged in driver with adapter installed: Turn off the engine. Remove the Chuck-Lok™System’s locking nut from the master chuck and slide
down the post. Using the handles, lift postdriver upward, allowing the post adapter to slide out. If the pressure from the ared post does not allow you
to lift driver off the post, locate the pry gaps on the adapter base and use a athead screwdriver to pry them downward. Be careful not to damage the
master chuck threads. Once loosened, lift using the postdriver handles. As the two-piece adapter frees from the chuck tube they separate from the post.
Slide the locking nut off the post, reinsert the adapter, apply the locking nut and resume post driving.
Post lodged in master chuck: Remove the four 5/16” lower body bolts and separate the lower body casting from the driver body. Slide the lower body
casting down the post to expose the ared top of the post. With the proper cutting tool for the type of post, cut through the post below the ared portion.
Once the ared portion is removed, slide the lower body casting off the post and reassemble it to the driver. Please follow bolt tightening procedure and
use thread locker solution.
Recommendation: Do not use “thin-wall” or light gauge round post with the GPD-40 Ranch Pro™. It is very likely to flare this type of post at full throttle.
Drives post slow or sluggish engine performance: Typically this is resulting from improper driver storage or over-lling the oil causing the oil to
seep into the combustion chamber. Turn off the engine. Position the driver vertically, remove the dipstick to check oil level. (See page 6) If you need to
remove some oil, dispose of it properly. If oil is at proper level, follow the procedure listed in “Pull-start is frozen or hard to pull.” It also is good practice
to wipe clean the engine after use.
Pull-start is frozen or hard to pull: This typically results from oil seeping into the combustion chamber from improper driver storage or overlling the
oil reservoir of the engine. Remove spark plug and pull hand grip a several times until it pulls freely. Replace the spark plug. Check the oil level in oil
reservoir to ensure proper level (page 6). Follow starting procedure. It is not unusual, for blue smoke to be emitted from the engine, let the engine run
until smoke clears.
Proper Storage: When storing your GPD-40, do not lay it horizontally on the driver side or resting on the engine. If the unit cannot be stored securely in
the upright position, place the chuck on the at surface, lean it toward the engine side until it is supported by the shroud and chuck. This will position the
driver on an angle with the top handle at the topmost point.
Other problems or technical questions: Have your serial number handy and contact Rhino Tool Company. Phone: 309.853.5555 or Toll Free 866-
1
© 2013, 2014 Rhino Tool Company Inc., - All Rights Reserved
CONTENTS
Section Page
Safety Symbol Description...............................................................i
Table of Contents ..................................................................... 1
Introduction .......................................................................... 2
Rhino®GPD-40 Fence Pro™Driver Safety .................................................. 3
Rhino®GPD-40 Fence Pro™Operating Instructions.......................................... 5
Starting the Engine .................................................................... 6
Hot Restart .......................................................................... 7
Driving a Post ........................................................................ 8
GPD-40 Fence Pro™Maintenance ........................................................ 9
Rhino®GPD-40 Fence Pro™Service Instructions........................................... 10
Servicing Crankshaft and Piston ........................................................ 10
Service of the Hammer and Anvil ........................................................ 12
Rhino®GPD-40 Fence Pro™Parts List.................................................... 16
Limited Warranty and Registration ...................................................... 20
Troubleshooting ..................................................................... 21
2
Congratulations on your selection of the
Rhino®GPD-40 Fence Pro™post driver.
We are certain that you will be pleased
with your purchase. GPD-40 Fence Pro™
post driver is built with extremely high
quality components. From the fasteners
to the venerable Honda GX35 engine,
every component of this post driver is rst
quality.
Whether you are a farmer, a vintner, a sign
installer or a professional fence contractor,
we want you to get the best results from
your new Rhino®post driver and to
operate it safely. This manual contains the
information on how to do just that; please
read it carefully.
This post driver was assembled with the
Honda GX35 engine. Honda supplies its
own owner’s manual that covers all the
operator and service issues associated with
the Honda engine. Please read this manual
as closely as you do the Rhino manual.
The success that you experience with this
tool is dependent upon your knowledge
and understanding of how to properly
operate and care for the Honda engine
installed on your new post driver.
As you read this manual, you will nd
information preceded by a NOTICE
symbol. That information is intended to
help you avoid damage to your post driver,
other property, or the environment.
We suggest you read the warranty
information fully and understand its
coverage and your responsibilities
of ownership. Fill out the warranty
registration card or online registration
to receive Rhino®Lifetime Limited
Warranty.
Please read and understand the Honda
warranty policy. The Honda warranty is
separate from the Rhino®warranty and is
subject to its own coverage conditions and
responsibility requirements. The warranty
is a separate document and should have
been included with the Honda owner’s
manual.
When your Rhino®post driver needs
scheduled maintenance, the technical ser-
vice staff here at Rhino Tool Company is
standing by to assist you if you require as-
sistance. Our fully trained staff can ensure
that you receive the correct service kit or
direct you to the nearest Rhino Servicing
Dealer.
If it is the engine that requires scheduled
maintenance, keep in mind that your
Honda service dealer is fully equipped and
specially trained in servicing the Honda
engine. Your Honda servicing dealer is
dedicated to your satisfaction, and will
be pleased to answer your questions and
concerns.
Again, congratulations on your selection
and from the dedicated team here at
Rhino Tool Company, THANK YOU for
choosing a genuine Rhino®post driver.
Kindest Regards,
The Rhino Tool Team
INTRODUCTION
3
The Rhino®GPD-40 Fence Pro™pow-
ered gas operated post driver is designed
to drive fence posts, ground rod, post
delineator posts, grape stakes, form pins,
tent stakes and other like items into the
ground. Uses, other than those intended,
can result in injury to the operator as well
as those around the operator. Damage to
the driver and to the surrounding area may
result as well.
This post driver is intended for use by pro-
fessional installers. Never allow children
to operate this tool.
Most accidents can be prevented if you
follow all instructions in this manual and
on the post driver. The most common haz-
ards are discussed below, along with the
best method to protect yourself and others.
UNDERGROUND
UTILITIES: Driving
a post into an underground utility can be
EXTREMELY DANGEROUS, exposing
the operator and those around to poten-
tially life threatening danger. Damage to
surrounding property can also occur as a
result of a post being driven into an under-
ground utility. Be absolutely certain that
you are aware of all underground utilities
in the area in which you intend to drive
posts. Ensure that a certied locating ser-
vice has identied all underground utilities
prior to beginning your project. Failure to
do so can be catastrophic. Underground
utilities include but are not limited to:
Electric, Gas, Telephone, Water, Sewer,
TV Cable, Lawn Sprinklers, etc.
GASOLINE: Gaso-
line is HIGHLY
FLAMMABLE and EXPLOSIVE. You
can be burned or seriously injured when
handling fuel.
EXHAUST: The ex-
haust from the engine
contains poisonous carbon monoxide gas
that can build up to dangerous levels in
closed areas. Breathing carbon monoxide
can cause unconsciousness or death.
Never run the engine in a closed or even
partly closed area where people may be
present.
The engine exhaust
from this product
contains chemicals known to the State of
California to cause cancer, birth defects or
other reproductive harm.
ENGINE
MAINTENANCE:
Improperly maintaining the engine on this
power tool, or failure to correct a problem
before operation, can cause a malfunc-
tion in which you can be seriously hurt or
killed.
In accordance with the engine owner’s
manual, always perform a pre-operation
inspection of the engine before each use
and correct any problem.
DRIVER
MAINTENANCE:
Improperly maintaining the driving
mechanism on this power tool, or failure
to correct a problem before operation, can
cause a malfunction in which you can be
seriously hurt or killed.
In accordance with this manual, always
IMPORTANT SAFETY INFORMATION
POST DRIVER SAFETY
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
!
WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
4
perform a pre-operation inspection of the
driving mechanism before each use and
correct any problem.
Do not lend or rent
your post driver with-
out the instruction manuals. Be sure that
anyone using it understands the informa-
tion contained in these manuals.
Do not use this post
driver for any purpose
other than driving posts into the ground.
Misuse may result in personal injury or
property damage, including damage to the
machine
Minors should never
be allowed to use this
power tool. Bystanders, especially chil-
dren, and animals should not be allowed in
the area where it is in use.
NEVER let your
power tool run unat-
tended. When it is not in use, shut it off
and make sure that unauthorized persons
do not use it.
Do not operate this
post driver unless
the operator is wearing safety glasses,
safety shoes, hearing protection, gloves
or any other safety equipment advised by,
ANSI, NIOSH, OSHA, or any other safety
regulatory agency, or the employer or the
owner of this post driver.
Bystanders should, at a minimum, wear
safety glasses and hearing protection while
in the presence of this power tool during
operation.
Prolonged use of a
power tool (or other
machines) exposing the operator to vibra-
tions may produce white nger disease
(Raynaud’s phenomenon) or carpal tunnel
syndrome. These conditions reduce the
hand’s ability to feel and regulate tem-
perature, produce numbness and burning
sensations and may cause nerve and circu-
lation damage and tissue necrosis.
Not all factors contributing to white nger
disease are known, but cold weather,
smoking and diseases or physical condi-
tions that affect blood vessels and blood
transport, as well as high vibration levels
and long periods of exposure to vibration
are mentioned as factors in the develop-
ment of white nger disease.
In order to reduce the risk of white nger
disease and carpal tunnel syndrome, please
note the following:
• The Rhino GPD-40 Fence Pro™has
been designed with spring dampened
anti-vibration handles to reduce the
transmission of vibrations created by the
machine to the operator’s hands.
An anti-vibration system is recommend-
ed for those persons using power tools
on a regular or sustained basis.
• The handle opposite the throttle handle
has been tted with an EVA foam grip
further dampening vibrations.
• Wear gloves and keep your hands warm.
• Ensure that the EVA foam and the
spring dampening system are in good
working condition.
IMPORTANT SAFETY INFORMATION
POST DRIVER SAFETY... continued
!
WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
!
WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
!
WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
!
WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
5
• Ensure the post driver has no loose com-
ponents. Loose components lead to high
vibration levels.
• Maintain a rm grip at all times, but do
not squeeze the handles with constant,
excessive pressure. Take frequent
breaks.
All of the above mentioned precautions
do not guarantee that you will not sustain
white nger disease or carpal tunnel syn-
drome. Therefore, continual and regular
users should closely monitor the condi-
tion of their hands and ngers. If any of
the above symptoms appear, seek medical
advice immediately.
DO NOT modify this
power tool in any way.
DO NOT put anything
other than a post into
the chuck on the driver.
DO NOT operate your
post driver unless it
is on a post to be driven. Operation of the
driver without it driving on a post could
damage the power tool.
SURROUNDINGS:
This power tool emits
noise which may be disturbing to animals
and livestock. Ensure prior to operation,
that any livestock are cleared from the
operational area to prevent a situation in
which startled livestock become a safety
hazard.
WARNING LABELS
If your post driver’s warning label is
marred or destroyed, replace it immedi-
ately. Simply call Rhino Tool Company
and we will send you a new warning label
at no expense to you.
POST DRIVER SAFETY... continued
IMPORTANT SAFETY INFORMATION
!
WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
!WARNING
!DANGER
!
CAUTION
IMPORTANT
NOTE
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
GPD-40 Fence Pro™
Operating
Instructions
Your Rhino®GPD-40 Fence Pro™Gas
Powered Driver is an efcient and effec-
tive power tool designed and developed to
tackle a difcult and time consuming task;
driving posts.
It is very important to understand that
your post driver is a very powerful ma-
chine; it has to be to do the very difcult
job it is designed to perform. With proper
care and maintenance, your Rhino®GPD-
40 Fence Pro™will give you many years
of trouble free service.
You must read and understand your post
driver operating instructions before using
the post driver. It is also very important
that you make sure all operators are
trained to operate your post driver safely.
If you or any operator doesn’t understand
any of the instructions in this manual, call
Rhino Tool Company at 866-707-1808
or 309-853-5555 and we will be happy to
answer any questions you may have.
6
AVOID SERIOUS
INJURY OR DEATH
READ THIS MANUAL BEFORE
USING YOUR POST DRIVER
Visually inspect your GPD-40 Fence Pro™
Post Driver before use. The interior of the
chuck tube should be checked for obstruc-
tions, damage or wear to the chuck tube
and anvil inside. The outer surfaces of the
driver should also be inspected for any de-
fects. Do not use the GPD-40 Fence Pro™
if there is any damage or wear until the
damage or wear is corrected and repaired.
Check all uid levels, i.e. engine oil and
fuel and ll as needed as per manufac-
turer’s specications.
Proper oil level is essential
to the operation of the post
driver. Overlling of the oil will result in
loss of power and may cause perma-
nent damage to the engine.
USE ALL
RECOMMENDED
SAFETY EQUIPMENT.
Rest the driver on a solid surface, i.e.
tailgate, bench, or clear, solid ground and
posture your body in a safe position. DO
NOT start the driver anywhere but an
open, well-ventilated area. It is recom-
mended that the GPD-40 Fence Pro™
only be used outdoors and never inside an
enclosed building.
Starting the Engine:
To start a COLD engine, move the choke
lever to the CLOSED position (Fig. 3).
Lock the throttle into high idle position.
(Fig. 2) This is done by depressing the
trigger and the high idle lock simultane-
ously. The throttle is now in the high idle
position.
To start a WARM engine, leave the choke
lever in the OPEN position and do not
lock the throttle into the high idle position.
Press the priming bulb repeatedly (Fig. 4)
until fuel can be seen in the clear-plastic
fuel return tube.
GPD-40 Fence Pro™Operating Instructions... continued
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
Thumb Switch
High Idle Lock
Trigger
Upper limit of
engine oil.
Lower limit of
engine oil is end
of dipstick.
Fig. 1 Fig. 2
7
Slide thumb switch on throttle handle
down or into the ON position.
Grasp the starter grip lightly until you feel
resistance, (Fig. 5) then pull briskly in the
direction of the arrow as shown below.
Return the starter grip gently.
Do not extend the starter rope to its full
length as it can cause damage the recoil
mechanism
An operator should
never wrap the starter
rope around their hand. This will cause
serious injury.
Do not allow the starter grip
to snap back against the
engine. Return it gently to prevent
damage to the starter.
If the choke lever was moved to the
CLOSED position to start the engine,
gradually move it to the open position
as the engine warms up. As the engine
warms up also release the high idle lock
by slightly depressing the trigger and then
immediately releasing it. Use caution as to
not engage the clutch.
Hot Restart
If the engine is operated at higher ambient
temperatures, then turned off and allowed
to sit for a short time, it may not restart on
the rst pull. If necessary, use the follow-
ing procedure:
Failure to follow instructions can result in
personal injury
IMPORTANT
SAFETY
PRECAUTION
Turn the engine switch to the OFF
position before performing the following
procedure. This will prevent the engine
from starting and running at maximum
speed when the throttle is in the MAX.
speed position. If the engine starts with
the throttle in the MAX. speed position,
the post driver will operate at maximum
power. This may result in personal injury
and damage to the post driver.
!WARNING
!DANGER
!
CAUTION
IMPORTANT
NOTE
!WARNING
!DANGER
!
CAUTION
IMPORTANT
NOTE
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
GPD-40 Fence Pro™Operating Instructions... continued
Choke Closed
Choke Open
Priming Bulb
Fuel Return
Line (clear
plastic tube)
Fig. 3
Fig. 4
Starter Grip
Fig. 5
8
1. Turn the engine switch on the post
driver to the OFF position.
2. Move the choke lever to the OPEN
position.
3. Hold the throttle in the MAX speed
position.
4. Pull the starter grip 3 to 5 times.
Follow the STARTING THE ENGINE
procedure on the previous page and start
the engine with the choke lever in the
OPEN position.
Driving a Post
Insert a post into the GPD-40 Fence
Pro™making sure the end of the post to
be driven is in the correct position on
the ground. Position the driver aligned
centered to the post. (Fig. 6) If not aligned
properly, damage could be caused to the
driver or the post.
Apply steady downward pressure to the
handles and apply enough throttle to en-
gage the clutch and hammer.
Once you are condent that the post is
driving straight, apply full throttle to the
driver until the post is driven to the desired
depth.
Release the trigger dropping the engine
RPM back to idle before removing from
the post. When the engine has returned to
idle, proceed to the next post repeating the
previous method of driving a post.
Installing a Chuck Adapter
CHUCK SIZE: A
chuck or chuck adapter
that is too large for the post being driven
may damage the driver and may batter the
end of the post. Using a the appropriate
chuck adapter snuggly aligns the post to
optimum striking position and prevents
damage to the driver from bouncing
around in a loose tting chuck. See the
chart below to specify the appropriate
adapter for your application. Chucks and
chuck adapters wear out and should be
replaced as needed. Inspect your driver’s
chuck and chuck adapters frequently.
The GPD-40 Fence Pro is equipped with
the Rhino®Chuck-Lok™Adapter System.
It is comprised of the master chuck, the
locking nut and two-piece adapters.
!
WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
GPD-40 Fence Pro™ Operating Instructions... continued
Post
Driver
Post
RIGHT WRONG
Type or Size of Post
to be Driven
Chuck/Adapter
Required
Fiberglass T-Post 2" Adapter
T-Post 2" Adapter
5/8" to 3/4" Ground Rod 1" Adapter
1" to 1-7/8" Post 2" Adapter
2" to 2-3/8" Post Master Chuck
Fig. 6
9
ALWAYS HAVE THE
LOCKING NUT IN
PLACE WHEN DRIVING POSTS: The
Chuck-Lok™locking nut should always be
tightened onto the master chuck to protect
the chuck threads, even when not using an
adapter. Failure to do so exposes the chuck
to possible damage.
The two-piece adapter design is a solu-
tion for the occasional flared post. Should
a post flare and lodge inside the chuck
when using the adapter, in most cases the
operator can loosen the locking nut letting
it slide down the post, then lift the driver
off the post. The operator can quickly
re-insert the adapter, secure them with the
locking nut and resume driving posts. See
the Fig. 7 and Fig. 8 for steps for install-
ing Chuck-Lok™adapters.
Maintenance of the
GPD-40 Fence Pro™
NEVER REFUEL
WITH THE ENGINE
HOT OR RUNNING:
Never refuel your GPD-40 Fence Pro™
with the engine hot or running as there is a
possibility the ammable fumes from the
gasoline can ignite, causing severe injury
and/or damage to your GPD-40 Fence
Pro™and surrounding area. Follow engine
manufacturer’s instructions for the refuel-
ing of the engine.
With each use check the engine oil level,
air lter, and all fasteners. If necessary,
add oil, clean or replace the air lter and
tighten any loose nuts, bolts, or any other
fastener. (See page 6 for engine oil level)
Change engine oil as per engine manu-
facturer’s specications. Dispose of used
oil in accordance with any local, state, or
federal regulations.
To help insure years of operation, wipe
down the GPD-40 Fence Pro™with a clean
cloth after each days use.
Refer to the Service Instructions for
more detail regarding maintenance
of the Post Driver.
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
GPD-40 Fence Pro™ Operating Instructions... continued
Fig. 7 Fig. 8
GPD-40 Fence Pro™Service Instructions
10
Following the service requirements for the
GPD-40 Fence Pro™will insure years of
trouble free post driving. Always refer to
the Honda GX35 manual for maintenance
and service on the engine. The following
instructions are for the Rhino®GPD-40
Fence Pro™ specically with general
instructions for the Honda GX35. Before
any service is preformed, remove the
spark plug wire from the spark plug and
ground it to the engine body to prevent
any accidental start-up of the engine.
Each Use:
1. Check engine oil level. Use SAE 10W-
30 to top oil level off, if necessary.
2. Check engine air cleaner. If soiled,
clean or replace.
3. Check all engine and post driver fasten-
ers. Retighten to proper specications if
necessary. (See Bolt Torque Specica-
tions on page 19)
First 10 Hours Use of a New or Rebuilt
GPD-40 Fence Pro™
1. Change engine oil following the
requirement for the Honda GX35. Dis-
pose of used oil according to all local,
state, and federal regulations.
2. Check all engine and post driver fasten-
ers. Retighten to proper specications if
necessary.
Every 3 Months or 25 Hours of Use
1. Change engine oil following the
requirement for the Honda GX35. Dis-
pose of used oil according to all local,
state, and federal regulations.
2. Replace air cleaner elements. This
should be performed more often if oper-
ated in dusty areas.
3. Check all engine and post driver fasten-
ers. Retighten to proper torque speci-
cations if necessary. (See page 19)
Every 3 Months or 50 Hours of Use
1. Follow the regular scheduled mainte-
nance (each use and 25 hour intervals)
2. Check crankshaft and piston lubrica-
tion. (See page 11 for instructions.)
Every 12 Months or 250 Hours of Use
1. Follow the regular scheduled mainte-
nance (each use, 25 hour and 50 hour
intervals)
2. Check crankshaft and piston lubrica-
tion. See page 11 for instructions.
3. Remove and service the hammer and
anvil. See page 12 for instructions.
Servicing Crankshaft and Piston
Lubrication
The crankcase cover (p/n 300132) is
designed for easy, “no tool” inspection
and maintenance. (Fig. 9). To remove the
cover, grip it tightly with your hand and
twist it left (counter-clockwise.) Use cau-
tion not to lose or damage the O-ring Seal
(p/n 301617).
DO NOT USE A
HAMMER OR
WRENCH TO LOOSEN THE COVER
AS IT MAY CAUSE DAMAGE TO
THE DRIVER.
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
11
Visually inspect the color and amount of
grease inside the crankcase. There should
be a ring of grease collected to the wall in-
side the crankcase. Should the depth of the
ring from the wall inward measure 1/4"
(6 mm) or less (Fig. 10) this indicates the
grease is low. The maximum level should
not be more than 1/2" (12.5mm).
If the amount of grease appears to be low,
add a small amount of grease. Use only
Rhino approved grease (p/n 300500.)
DO NOT OVERFILL
GREASE AS IT CAN
DAMAGE THE DRIVER AND THE
HONDA ENGINE.
If the grease is discolored, very dark or
black, it should be removed and the post
driver needs further maintenance. This is
detailed in the section titled “Service of
the Hammer and Anvil.”
In the event of complete removal of old
and adding fresh grease (Fig. 11) the level
of grease should be to the bottom of the
crank pin. When the required service has
been performed in the crankcase, inspect
the o-ring seal and replace it on the crank-
case cover. Position the crankcase cover
on the GPD-40 Fence Pro™body carefully
to start the threads and once in the thread
groove, with your hand twist to the right
(clock-wise) until it is securely in contact
with the post driver body.
HAND TIGHTEN
ONLY. DO NOT
OVERTIGHTEN. Do not use tools, such as
a hammer or wrench, to tighten the crankcase
cover as it will damage the driver.
GPD-40 Fence Pro™ Service Instructions... continued
Fig. 9 - Crankcase Cover Fig. 10 - If ridge of grease measures 1/4″
or less, add a small amount. At maximum
level it should measure 1/2".
Fig. 11 - After completely cleaning out old
grease, add new grease till level with the
bottom of the crank pin.
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
!WARNING
!DANGER
!CAUTION
IMPORTANT
NOTE
12
Service of the Hammer and Anvil
The tools required for servicing the ham-
mer and anvil are, a 9/64″hex wrench, a
1/4″hex wrench, a 7/8″deep well socket
with handle, a torque wrench that reads in
inch/pounds, and threadlocker.
Remove the four (4) bolts in the bottom of
the lower driver body (p/n 301030). Use
caution as the handle tubes (p/n 300220)
have anti-vibration springs (p/n 300720)
installed and they are under tension.
When the lower driver body is removed,
it should appear as shown in Fig. 12. The
anvil o-ring retainer (p/n 301110) will
sometimes be removed with the lower
driver body or remain in place.
Remove the anvil o-ring cup (p/n 301090)
and the anvil (p/n 301160). This can be
easily accomplished by pushing a 1″dowel
rod or hammer handle into the chuck tube
from the opposite side. When the parts
are removed, note the order and disas-
semble for inspection. Check the anvil for
any wear. The anvil o-ring (p/n 301616)
should be replaced at this time. Clean
the anvil and carefully replace the anvil
o-ring. (Fig 13) shows an anvil with the
o-ring in place.
Remove the large retainer o-ring seals
(p/n 301614) and the large retainer (p/n
301110) from the anvil o-ring cup. Inspect
the large retainer. The large retainer o-ring
seals (p/n 301614) should be replaced
at this time. Replace the large retainer if
there are any signs of damage or excessive
wear.
The anvil o-ring retainer can be removed
from the end of the cylinder in the post
driver body (p/n 301010) by hand.
Use caution as it can become sharp with
use of the driver. Remove the hammer (p/n
301080), piston and connecting rod assem-
bly (p/n 301075) by removing the crank
pin (p/n 300050). Access to the crank pin
is achieved by removing the crankcase
cover (p/n 300130), which is described
in the section titled “Servicing Crank-
shaft and Piston Lubrication.” Remove
the crank pin using the 7/8″deep well
Fig. 13 - Anvil with O-ring in place.
GPD-40 Fence Pro™ Service Instructions... continued
Fig. 12 - View when Lower Driver Body
removed.
13
socket. The crank pin has LEFT-HAND
THREADS. Use caution holding the con-
necting rod and crankshaft (p/n 300040).
The connecting rod and crankshaft can
be damaged. Use a small wood or plastic
block to keep the crankshaft from rotating.
When the crank pin is removed, the piston,
connecting rod, hammer can be removed
by pushing the connecting rod down into
the cylinder until it can be removed from
the bottom of the post driver body. Note
position of the hammer. The small end of
the hammer is toward the anvil as shown
in Fig. 14. Clean and inspect the hammer
for damage or excessive wear. The ham-
mer o-ring seal should be replaced at this
time.
Clean and inspect the piston and con-
necting rod. Insert the crank pin into the
bearing on the connecting rod. If there is
excessive play or side movement between
the two, the connecting rod and possibly
the crank pin should be replaced. Check
the movement in the bearing in the piston
side. If there is excessive play the connect-
ing rod should be replaced. The piston o-
ring seal (p/n 301610) should be replaced
at this time. See Fig. 15.
Clean and inspect the cylinder and crank-
case for any damage or wear. Replace any
damaged parts. Lubricate the cylinder,
piston, and connecting rod with Rhino ap-
proved grease. Insert the connecting rod,
with the piston attached, into the cylinder.
Push the piston up the cylinder until the
bearing in the connection rod aligns with
the threaded hole for the crank pin. Insert
the crank pin through the bearing and start
the threads into the crankshaft by hand.
These are LEFT-HAND THREADS.
Tighten the crank pin using the 7/8″deep
well socket. Torque to 228 inch/pounds.
Add Rhino approved grease (p/n 300500)
to the crankcase to the level shown in Fig.
11. (See Caution: Do not overll grease
on page 11) If grease has been completely
removed add approximately 4 teaspoons
of grease or until level with the bottom of
the crankpin head. Close the crankcase by
placing the crankcase cover o-ring seal
onto the crankcase cover. Place the crank-
case cover onto the post driver body, start
the thread, and twist to the right (clock-
wise) with your hand until it is secure
against the post driver body. (See Cau-
tion: Hand Tighten Only on page 11)
Lubricate the cylinder and hammer with
Rhino approved grease. Insert the hammer
GPD-40 Fence Pro™ Service Instructions... continued
Fig. 14 - Small end of Hammer is toward
the anvil.
Fig. 15 - Piston with Connecting Rod and
O-ring Seal in place.
into the cylinder, taking note of the small
end toward the anvil as shown in Fig. 12.
Push the hammer into the cylinder making
room to insert the anvil o-ring retainer.
Apply grease to the anvil o-ring retainer
and place the small end into the cylinder.
The grease should hold it in place.
Lubricate and assemble the large retainer
and the two (2) o-ring seals in the order
shown in Fig. 16 and assemble into the
anvil o-ring cup ensuring the large radius
on the large retainer is positioned toward
the anvil.
THE LARGE RADIUS
OF THE LARGE RE-
TAINER MUST BE POSITIONED DOWN-
WARD FACING THE ANVIL OR IT WILL
CAUSE DAMAGE TO THE DRIVER.
Note: Large Retainer on previous models
of GPD-40 do not have radius and can be
installed on either side.
Clean and inspect the chuck tube (p/n
301150) and lower driver body (p/n
301030) for any damage or excessive
wear. Replace if necessary. Lubricate the
inside of the chuck tube with grease. Ap-
ply grease to the anvil with o-ring. Insert
the anvil with new anvil o-ring into chuck
tube, making certain that the anvil is seat-
ed into the chuck tube with the small end
facing toward the hammer. Insert the anvil
o-ring cup into the chuck tube. Replace the
chuck tube o-ring (p/n 301618) and insert
the chuck tube o-ring onto the chuck tube.
It should look like Fig. 17.
Remove the handle tubes (p/n 300220)
from the handle cups and remove and
clean and lubricate all four (4) anti-vibra-
tion springs (p/n 300720). Check all han-
dle cups for wear. Clean and lubricate the
upper and lower cups the handle tubes t
into with a small amount of grease. Insert
14
Fig. 16 - Insert O-ring into Anvil O-ring
cup, then insert Large Retainer with large
radius at bottom towards the anvil, then
insert other O-ring.
GPD-40 Fence Pro™ Service Instructions... continued
Fig. 17 - Elements reassembled into chuck
tube.
O-ring
O-ring
Anvil
O-ring
Cup
Anvil
with
O-ring
Large Retainer
Large Radius
!WARNING
!DANGER
!
CAUTION
IMPORTANT
NOTE
15
GPD-40 Fence Pro™ Service Instructions... continued
the anti-vibration springs into the handle
tubes. Assemble the handle tubes into the
upper handle cups. Insert the chuck tube
into the post driver body, taking care to
insert the handle tubes into the handle
cups on the lower driver body. When parts
are inserted in the proper position, there
will be resistance from the anti-vibration
springs to seat the lower driver body on to
the post driver body. This is normal. Ap-
ply primer and threadlocker to the bolts.
Insert and hand thread the four (4) Lower
body bolts through the lower driver body
into the post driver body. Use a 1/4″hex
wrench to tighten the bolts in a star pat-
tern until the lower driver body is seated
on the post driver body. Check for any
misalignment or binding when joining the
parts. Do not use excessive force. Torque
the lower body bolts to 132 inch/pounds.
Perform a visual check of the post driver.
Reconnect the spark plug wire to the spark
plug. Check that the engine has the proper
amount of oil. Start the engine using the
proper procedure and test the post driver.
16
Rhino®GPD-40 Fence Pro™Parts List
1
2
3
14 13
15
4
4
3
4
5
5
69
12
7
10
11
4
8
16
17
212223
24 18
19
20
17
Rhino®GPD-40 Fence Pro™Parts List
No. P/N Description
1 300710 Top Handle Bolts (6 Qty.)
2 300210 Upper Handle
3 300230 Handle Cup (2 Qty.)
4 300720 Handle Anti-Vibration Spring (4 Qty.)
5 300220 Handle Tube
6 300221 EPDM Handle Grip
7 300250 Throttle Control Assembly
8 301150 Chuck-Lok™Chuck Tube
9 301030 Lower Driver Body
10 300702 Lower Body Bolts (4 Qty.)
11 301920 Rhino®Chuck-Lok™System Locking Nut
12 300902 Rhino®Chuck-Lok™ System 2″ Adapter (1 per driver)
No. P/N Description
13 300712 Ground Bolt
14 301015 Post Driver Body with Cylinder and Bearings
15 301075 Piston and Connecting Rod Assembly
16 301610 Piston O-ring Seal and Hammer O-ring Seal (2 Qty.)
17 301080 Hammer
18 301110 Anvil O-ring Retainer
19 301614 Large Retainer O-ring Seal (2 Qty.)
20 301100 Large Retainer
21 301090 Anvil O-ring Cup
22 301160 Anvil
23 301616 Anvil O-ring
24 301618 Chuck Tube O-ring Seal
18
25
26
27
28
15
29
28
15
33
33
30
31
32
35
34
36
38 38
40
37
37
Rhino®GPD-40 Fence Pro™Parts List
39
Table of contents
Other RHINO Power Tools manuals
