Rhino Gpd-30 User manual

GPD-30

GasPoweredDriver

GPD-30

GasPoweredDriver

Highest Quality Post Drivers and Post Pullers

OWNERS MANUAL

Form No. GPD30-800-10/2012

DriveHomea

RHINO®

TODAY

DriveHomea

RHINO®

TODAY

Rhino Tool Company

620 Andrews Avenue

Kewanee, IL 61443

P: 309.853.5555 or Toll Free 866-707-1808

F:309.856.5905

www.rhinotool.com E: [email protected]

Rhino Tool Company

620 Andrews Avenue

Kewanee, IL 61443

P: 309.853.5555 or Toll Free 866-707-1808

F:309.856.5905

www.rhinotool.com E: [email protected]

Manufacturing Quality Post Drivers and Post Pullers Since 1977

GPD_30_Cvr.indd 1 11/5/2012 10:12:54 AM

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.

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

You WILL be KILLED or SERIOUSLY HURT

if you do not follow instructions.

!WARNING

!DANGER

!CAUTION

IMPORTANT

NOTE

You CAN be KILLED or SERIOUSLY HURT

if you do not follow instructions.

!WARNING

!DANGER

!CAUTION

IMPORTANT

NOTE

You CAN be HURT if you do not follow instructions.

• Safety Headings such as IMPORTANT SAFETY

INFORMATION.

• Safety Section such as POST DRIVER SAFETY.

• Instructions how to use this post driver correctly and safely.

This entire book is lled with important safety information.

Please read it carefully

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.

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

You WILL be KILLED or SERIOUSLY HURT

if you do not follow instructions.

!WARNING

!DANGER

!CAUTION

IMPORTANT

NOTE

You CAN be KILLED or SERIOUSLY HURT

if you do not follow instructions.

!WARNING

!DANGER

!CAUTION

IMPORTANT

NOTE

You CAN be HURT if you do not follow instructions.

• Safety Headings such as IMPORTANT SAFETY

INFORMATION.

• Safety Section such as POST DRIVER SAFETY.

• Instructions how to use this post driver correctly and safely.

This entire book is lled with important safety information.

Please read it carefully

TAKE SAFETY SERIOUSLY

GPD-30 Trouble Shooting

Symptom Explanation/Procedure

Post lodged in

the driver In the event that a driven post ares and becomes lodged within the chuck, follow these steps:

1. Remove the four 5/16” lower body bolts and separate the lower body casting from the driver body.

2. 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.

3. 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.

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.

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 overlling 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-30, 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 866-707-1808, Fax:309.856.5905, Email: [email protected]

GPD_30_Cvr.indd 2 11/5/2012 10:12:57 AM

!WARNING

!DANGER

!CAUTION

IMPORTANT

NOTE

!WARNING

!DANGER

!CAUTION

IMPORTANT

NOTE

The engine emits toxic carbon monoxide.

Do not run in an enclosed area.

The engine exhaust from this product contains

chemicals known to the State of California to

cause cancer, birth defects or other reproductive

harm.

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 specications included 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 specications or design at any time without notice and

without incurring any obligation whatever. No part of this publi-

cation may be reproduced without written permission from Rhino

Tool Company.

GPD-30-800.indd 1 11/6/2012 7:28:58 AM

iii

CONTENTS

Section Page

Safety Symbol Description.........................................................i

Table of Contents ...............................................................iii

Introduction ....................................................................1

Rhino® GPD-30 Driver Safety .....................................................2

Rhino® GPD-30 Operating Instructions .............................................5

Starting the Engine ...........................................................6

Hot Restart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Maintenance of The GPD-30....................................................8

Rhino® GPD-30 Service Instructions ...............................................9

Servicing Crankshaft and Piston ................................................10

Service of the Hammer and Anvil ...............................................11

Rhino® GPD-30 Parts List .......................................................12

Limited Warranty and Registration ................................................19

Rhino® GPD-30 Troubleshooting .................................................21

GPD-30-800.indd 2 11/6/2012 7:28:58 AM

INTRODUCTION

Congratulations on your selection of the Rhino®GPD-30 post

driver. We are certain that you will be pleased with your pur-

chase. The Rhino® GPD-30 post driver is built with extremely

high quality components. From the fasteners to the venerable

Honda GX 35 engine, every component of this post driver is rst

quality.

Whether you are a farmer, a vintner, a sign installer or a profes-

sional 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 built with the Honda GX 35 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 card fully and un-

derstand its coverage and your responsibilities of ownership. Fill

out the owner’s registration card to receive a warranty extension

on the driver components.

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 require-

ments. 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 service staff here at Rhino Tool Company is standing

by to assist you if you require assistance. Our fully trained staff

can ensure that you receive the correct rebuild kit and can walk

you through the process of rebuilding your post driver if you

experience difculty. 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

GPD-30-800.indd 3 11/6/2012 7:28:58 AM

Rhino® GPD-30 DRIVER SAFETY

The Rhino®GPD-30 Honda®powered

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 certied locating ser-

vice has identied 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 MAINTE-

NANCE: Improperly

maintaining the engine on this power tool,

or failure to correct a problem before op-

eration, can cause a malfunction 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 MAINTE-

NANCE: Improperly

maintaining the driving mechanism 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 this manual, always

perform a pre-operation inspection of the

IMPORTANT SAFETY INFORMATION

!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

GPD-30-800.indd 4 11/6/2012 7:28:59 AM

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 temperature, produce

numbness and burning sensations and may

cause nerve and circulation 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-30 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 recommended for those per-

sons 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.

GPD-30 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

!WARNING

!DANGER

!CAUTION

IMPORTANT

NOTE

!WARNING

!DANGER

!CAUTION

IMPORTANT

NOTE

GPD-30-800.indd 5 11/6/2012 7:28:59 AM

• Ensure the post driver has no loose

components. Loose components lead to

high vibration levels.

• Maintain a rm grip at all times, but

do not squeeze the handles with con-

stant, 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.

!WARNING

!DANGER

!CAUTION

IMPORTANT

NOTE

!WARNING

!DANGER

!CAUTION

IMPORTANT

NOTE

!WARNING

!DANGER

!CAUTION

IMPORTANT

NOTE

!WARNING

!DANGER

!CAUTION

IMPORTANT

NOTE

GPD-30 DRIVER SAFETY... continued IMPORTANT SAFETY INFORMATION

GPD-30-800.indd 6 11/6/2012 7:28:59 AM

Your Rhino® GPD-30 Gas Operated Post Driver is an efcient

and effective power tool designed and developed to tackle a dif-

cult and time consuming task; driving posts. It does not matter

if your post is a T-post, round post, ground rod, grape stake, silt

fence or other post the Rhino® GPD-30 is the tool of choice.

It is very important to understand that your post driver is a very

powerful machine; it has to be to do the very difcult job it is

designed to perform. With proper care and maintenance, your

Rhino® GPD-30 will give you many years of trouble free ser-

vice.

You must read and understand your post driver operating in-

structions 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.

AVOID SERIOUS INJURY OR DEATH

READ THIS MANUAL BEFORE

USING YOUR POST DRIVER

Visually inspect your Rhino GPD-30 Post Driver before use. The

interior of the chuck tube should be checked for obstructions,

damage or wear to the chuck tube and anvil inside. The outer

surfaces of the driver should also be inspected for any defects. Do

not use the GPD-30 if there is any damage or wear until the dam-

age or wear is corrected and repaired.

Check all uid levels, i.e. engine oil and fuel and ll as needed as

per manufacturer’s specications.

Proper oil level is essential to the proper opera-

tion of the Post Driver. Overlling of the oil will

result in loss of power and may cause permanent damage

to the engine.

Rhino®GPD-30 Operating Instructions

WARNING

!DANGER

!CAUTION

IMPORTANT

NOTE

!WARNING

!DANGER

!CAUTION

IMPORTANT

NOTE

Upper limit of

engine oil.

Lower limit of engine

oil is end of dipstick.

GPD-30-800.indd 7 11/6/2012 7:29:00 AM

USE ALL RECOMMENDED SAFETY EqUIPMENT.

Secure 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

recommended that the GPD-30 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. Lock the throttle by depressing the trigger and while the

trigger is depressed, push in the yellow button next to the thumb

switch. Hold the yellow button in and release the trigger. 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 until fuel can be seen in the

clear-plastic fuel return tube.

Slide red thumb switch on throttle handle down or into the ON

position.

!WARNING

!DANGER

!CAUTION

IMPORTANT

NOTE

Choke Closed

Choke Open

Priming Bulb

Fuel Return Line

(clear plastic

tube)

GPD-30-800.indd 8 11/6/2012 7:29:01 AM

Grasp the starter grip lightly until you feel resistance, then pull

briskly in the direction of the arrow as shown below. Return the

starter grip gently.

Do not allow the starter grip to snap back against

the engine. Return it gently to prevent damage to

the starter. Never wrap the starter rope around your hand.

This will cause serious injury to the operator.

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 following 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 for 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.

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 previ-

ous page and start the engine with the choke lever in the OPEN

position.

!WARNING

!DANGER

!CAUTION

IMPORTANT

NOTE

!WARNING

!DANGER

!CAUTION

IMPORTANT

NOTE

Starter Grip

GPD-30-800.indd 9 11/6/2012 7:29:02 AM

DRIVING A POST:

Insert a post into the GPD-30 making sure the end of the post to

be driven is in the correct position on the ground.

Apply steady downward pressure to the handles and apply

enough throttle to engage the clutch and hammer.

Once you are condent 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.

MAINTENANCE OF THE GPD-30

NEVER REFUEL WITH THE ENGINE

HOT OR RUNNING

Never refuel your GPD-30 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-30 and sur-

rounding area. Follow engine manufacturer’s instructions for the

refueling of the engine.

With each use check the engine oil level, air lter, and all fasten-

ers. If necessary, add oil, clean or replace the air lter and tighten

any loose nuts, bolts, or any other fastener.

Change engine oil as per engine manufacturer’s specications.

Dispose of used oil in accordance with any local, state, or federal

regulations.

To help insure years of operation, wipe down the GPD-30 with a

clean rag after each days use.

Refer to the Service Instructions for more In Depth

Maintenance of the Post Driver.

WARNING

!DANGER

!CAUTION

IMPORTANT

NOTE

GPD-30-800.indd 10 11/6/2012 7:29:02 AM

Rhino®GPD-30 Service Instructions

Service Details for the Rhino GPD-30 Post Driver

Following the service requirements for the GPD-30 will insure

years of trouble free post driving. Always refer to the Honda

GX35 manual for maintenance and service on the engine. The

instructions below are for the Rhino GPD-30 specically 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 fasteners. Retighten to proper

specications if necessary.

First 10 Hours Use of a New or Rebuilt GPD-30

1. Change engine oil following the requirement for the Honda

GX35. Dispose of used oil according to all local, state, and

federal regulations.

2. Check all engine and post driver fasteners. Retighten to proper

specications if necessary.

Every 3 Months or 25 Hours of Use

1. Change engine oil following the requirement for the Honda

GX35. Dispose of used oil according to all local, state, and

federal regulations.

2. Replace air cleaner elements. This should be performed more

often if GPD-30 is operated in dusty areas.

3. Check all engine and post driver fasteners. Retighten to proper

specications if necessary

Every 3 Months or 50 Hours of Use

1. Follow the regular scheduled maintenance (each use and 25

hour intervals)

2. Check crankshaft and piston lubrication. See page 10 for

instructions.

Every 12 Months or 250 Hours of Use

1. Follow the regular scheduled maintenance (each use, 25 hour

and 50 hour intervals)

2. Check crankshaft and piston lubrication. See page 10 for

instructions.

3. Remove and service the hammer and anvil. See page 10 for

instructions.

GPD-30-800.indd 11 11/6/2012 7:29:02 AM

Servicing Crankshaft and Piston Lubrication

The tools required for removing the Crankcase Cover is a 9/64”

hex wrench, a torque wrench that reads in inch/pounds, and

threadlocker.

Remove the four (4) Bolts (p/n GPD30-714) on the Crankcase

Cover (p/n GPD30-130) and remove the cover (Fig. 1).

Use caution not to lose or damage the O-ring Seal (p/n GPD30-

602). Inspect the color and amount of grease inside the crankcase.

There should be a liberal amount of grease coating the inside of

the crankcase (Fig. 2).

If the amount of grease appears to be low, add a small amount

of grease. Use only Rhino approved grease. If the grease is

discolored, very dark or black, the post driver will need further

maintenance. This is detailed in the section titled “Service of the

Hammer and Anvil.”

When the required service has been performed in the crankcase,

inspect the O-ring Seal and replace it on the Crankcase Cover.

Position the Crankcase Cover on the GPD-30 Body. Apply

threadlocker to the Bolts. Start the four (4) Bolts by hand. After

the Bolts are started, tighten in a “star” pattern. Torque to 19.8

inch/pounds.

Fig. 1 - Crankcase Cover

Fig. 2 - Inspect color and amount of grease.

GPD-30-800.indd 12 11/6/2012 7:29:03 AM

Service of the Hammer andAnvil

The tools required for servicing the Hammer 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 GPD30-030). Use

caution as the Handle

Tubes (p/n GPD30-220)

have Anti-Vibration

Springs (p/n GPD30-720)

installed and they are

under tension. When the

Lower Driver Body is

removed, it should appear

as shown in Fig. 3. The

Anvil O-ring Retainer

(p/n GPD30-110) will

sometimes be removed

with the Lower Driver

Body or remain in place.

Remove the Anvil O-

ring Cup (p/n GPD30-

090) and the Anvil (p/n

GPD30-160). 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 re-

moved, note the order and disassemble for inspection. Check the

Anvil for any wear. The Anvil O-ring (p/n GPD30-606) should

be replaced at this time. Clean the Anvil and carefully replace the

Anvil O-ring. Fig 4 shows an Anvil with the O-ring in place.

Remove the Large Retainer O-ring Seals (p/n GPD30-604) and

the Large Retainer (p/n GPD30-100) from the Anvil O-ring Cup.

Note the position of the Large Retainer. The side with the radius

on the inside is positioned toward the Anvil. This is critical as

incorrect assembly can damage the driver. See Fig. 5.

Inspect the Large Retainer. The Large Retainer O-ring Seals

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 GPD30-010) by hand.

Fig. 4 - Anvil with O-ring in place.

Fig. 5 - Please note

the radius as this side

of the large retainer is

assembled toward the

Anvil.

Fig. 3 - View when Lower Driver

Body removed.

GPD-30-800.indd 13 11/6/2012 7:29:06 AM

Use caution as it can become sharp with use of the driver. Re-

move the Hammer (p/n GPD30-080), Piston (p/n GPD30-060)

and Connecting Rod (p/n GPD30-072) by removing the Crank

Pin (p/n GPD30-050). Access to the Crank Pin is achieved by

removing the Crankcase Cover, which is described in the section

titled “Servicing Crankshaft and Piston Lubrication” shown in

the previous pages of this manual. Remove the Crank Pin using

the 7/8” deep well socket. The Crank Pin has LEFT-HAND

THREADS. Use caution holding the Connecting Rod and

Crankshaft (p/n GPD30-040). The Connecting Rod and Crank-

shaft can be damaged. Use a small wood or plastic block to keep

the Crankshaft from rotat-

ing. When the Crank Pin is

removed, the Piston, Con-

necting 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. 6. Clean and inspect the Hammer for damage or excessive

wear. The Hammer O-ring Seal should be replaced at this time.

Clean and inspect the Piston and Connecting Rod. Insert the

Crank Pin into the bearing on the Connecting Rod. If there is ex-

cessive 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 Connecting Rod should

be replaced. The Piston O-

ring Seal (p/n GPD30-600)

should be replaced at this

time. See Fig. 7.

Clean and inspect the cylinder and crankcase for any damage or

wear. Replace any damaged parts. Lubricate the Cylinder, Piston,

and Connecting Rod with Rhino approved grease. Insert the Con-

necting 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.

Fill the crankcase with Rhino approved grease to the level shown

in photo #2. Close the crankcase by placing the Crankcase Cover

O-ring Seal onto the Crankcase Cover. Place the Crankcase Cov-

er onto the Post Driver Body and attach using the four (4) Bolts.

Apply threadlocker to the Bolts and torque to 19.8 inch/pounds.

Lubricate the cylinder and Hammer with Rhino approved grease.

Insert the Hammer into the cylinder, taking note of the small

end to the Anvil as shown in Fig. 6. Push the Hammer into the

Fig. 6 - Small end of Hammer is

toward the anvil.

Fig. 7 - Piston with Connecting Rod

and O-ring Seal in place.

GPD-30-800.indd 14 11/6/2012 7:29:06 AM

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) Large

Retainer O-ring Seals in the order shown in Fig. 8 and assemble

into the Anvil O-ring Cup. Note that the radius on the Large

Retainer is on the Anvil side.

Clean and inspect the Chuck Tube (p/n GPD30-150) and Lower

Driver Body (p/n GPD30-030) for any damage or excessive

wear. Replace if necessary. Lubricate Chuck Tube with grease.

Lubricate the Anvil with grease. Insert the Anvil with new Anvil

O-ring into Chuck Tube, making certain that the Anvil is seated

into the Chuck Tube. Insert the Anvil O-ring Cup into the Chuck

Tube. Replace the Chuck Tube O-ring (p/n GPD30-608) and

insert the Chuck Tube O-ring onto the Chuck Tube. It should look

like Fig. 8.

Remove the Handle Tubes from

the Handle Cups and remove

and clean and lubricate all four

(4) Anti-Vibration Springs.

Check all handle cups for wear.

Clean and Lubricate the upper

and lower cups the Handle

Tubes t into with a small

amount of grease. Insert 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. Apply 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 pattern 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.

Fig. 8 - Insert O-ring into Anvil O-ring cup, then insert Large

Retainer (note radius position), then insert other O-ring.

Anvil O-ring Large O-ring

Cup Retainer

Radius assembled toward Anvil

Fig. 8 - Elements reassembled

into chuck tube.

GPD-30-800.indd 15 11/6/2012 7:29:07 AM

Rhino®GPD-30 Driver Parts List

Number Part No. Name Number Part No. Name

1 GPD30-710 Top Handle Bolts (6 per driver) 7 GPD30-150 Chuck Tube

2 GPD30-110 Upper Handle 8 GPD30-030 Lower Driver Body

3 GPD30-230 Handle Cup (2 per driver) 9 GPD30-702 Lower Body Bolts (4 per driver)

4 GPD30-720 HandleAnti-Vibration Spring (4 per driver) 10 GPD30-015 Post Driver Body with Cylinder and Bearings

5 GPD30-220 Handle Tube (2 per driver) 11 GPD30-072 Connecting Rod with Bearings

6 GPD30-221 EPDM Handle Grip 12 GPD30-060 Piston

45678

GPD-30-800.indd 16 11/6/2012 7:29:07 AM

Number Part No. Name Number Part No. Name

13 GPD30-170 Wrist Pin 19 GPD30-100 Large Retainer

14 GPD30-781 Piston Retaining Ring 20 GPD30-090 Anvil O-ring Cup

15 GPD30-600 Piston O-ring Seal and Hammer O-ring Seal 21 GPD30-160 Anvil

16 GPD30-080 Hammer 22 GPD30-606 Anvil O-ring

17 GPD30-110 Anvil O-ring Retainer 23 GPD30-608 Chuck Tube O-ring Seal

18 GPD30-604 Large Retainer O-ring Seal (2 per Driver)

1415162123 17

192022

GPD-30-800.indd 17 11/6/2012 7:29:08 AM

Number Part No. Name

10 GPD30-015 Post Driver Body with Cylinder and Bearings

24 GPD30-714 Crankcase Cover Bolts (4 per driver)

25 GPD30-130 Crankcase Cover

26 GPD30-602 Crankcase Cover O-ring Seal

27 GPD30-050 Crank Pin

28 GPD30-704 Crankcase Bolts (6 per driver)

29 GPD30-040 Crankshaft

GPD-30-800.indd 18 11/6/2012 7:29:08 AM

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