General 240 User manual
OPERATOR MANUAL
ncludes Safety, Service and Replacement Part nformation
Model 240
One Man Hole Digger
Form: GOM26010601
Version 2.0
Do not discard this manual. Before operation, read and
comprehend its contents. Keep it readily available for reference
during operation or when performing any service related
function. When ordering replacement parts, please supply the
following information: model number, serial number and part
number. For customer service assistance, telephone
800.533.0524, +507.451.5510. Our Customer Service Department
telefax number is 877.344.4375 (D GGER 5), +507.451.5511.
There is no charge for customer service activities .
nternet address: http://www.generalequip.com.
Copyright 2006, General Equipment Company.
Manufacturers of light construction
equipment
620 Alexander Drive SW • P.O. Box 334 • Owatonna, Minnesota 55060-0334 USA
Telephone: 800.533.0524 • International Telephone: +507.451.5510
Telefax: +507.451.5511 • Sales/Customer Service Department Toll Free: 877.344.4375 (DI ER 5)
Congratulations on your decision to purchase a eneral light construction product. From our
humble beginnings in 1955, it has been a continuing objective of eneral Equipment Company to
manufacture equipment that delivers uncompromising value, service life and investment return.
Because of this continuous commitment for excellence, many products bearing the eneral name
actually set the standards by which competitive products are judged.
When you purchased this product, you also gained access to a team of dedicated and
knowledgeable support personnel that stand willing and ready to provide field support
assistance. Our team of sales representatives and inhouse factory personnel are available to
ensure that each eneral product delivers the intended performance, value and investment return.
Our personnel can readily answer your concerns or questions regarding proper applications,
service requirements and warranty related problems.
eneral Equipment Company places great emphasis upon not only product performance, but also
on product safety. It is important to remember that this product will only be as safe as the operators
which utilize it. It just makes good, common sense to take the time to read and fully understand the
contents of this manual before attempting to utilize this product in service. If you ever do have any
questions or concerns about this product, please feel free to contact our Customer Service
Department at the telephone numbers listed below for assistance.
If there is anything that I can do to assist your efforts when utilizing this product, please do not
hesitate to contact me. For assistance after normal business hours, telephone me at 507.451.9409
or 507.363.1033. If I am not immediately available, I will attempt to return your call as soon as
possible.
Sincerely,
ENERAL EQUIPMENT COMPANY
Dennis Von Ruden
President
DESCR PT ON PAGE
Notice to Oper tors
Oper tor Instruction l D t Sheet
S fety Prec utions
PREPARAT ON.
OPERAT ON.
MA NTENANCE, REPA R, AND STORAGE.
Assembly
Before St rting the Engine
F LL NG THE ENG NE GASOL NE TANK.
F LL NG THE ENG NE CRANKCASE W TH O L.
Digging Oper tion
OPERAT ONAL D SCLA MER.
CAL FORN A PROPOS T ON 65 D SCLA MER.
SPARK ARRESTOR D SCLA MER.
NFORMAT ON RELAT VE TO M N MUM COMPONENT STANDARDS FOR THE OPERAT ON
OF THE HOLE D GGER.
GENERAL TRANSPORTAT ON NFORMAT ON.
DETERM NAT ON OF POTENT AL SUBSURFACE HAZARDS N THE PROPOSED D GG NG
LOCAT ON(S).
SET-UP FOR D GG NG.
START NG THE ENG NE W TH THE AUGER CONNECTED TO THE AUGER DR VESHAFT.
OPERAT NG THE HOLE D GGER.
UNDERSTAND NG K CKBACK.
M N M Z NG K CKBACK FROM AN OPERAT ONAL STANDPO NT.
M N M Z NG K CKBACK FROM A DES GN STANDPO NT.
OPERAT NG THE HOLE D GGER CONT NUED.
STOPP NG THE HOLE D GGER.
TEMPORARY STORAGE FOR THE HOLE D GGER WH LE ON THE JOB S TE.
ADD NG AND REMOV NG THE NONFL GHTED AUGER EXTENS ON.
Service
CHANG NG THE HOLE D GGER TRANSM SS ON LUBR CANT.
ENG NE SERV CE.
Troubleshooting
ENG NE.
OPERAT ONAL PROBLEMS.
Stor ge
Specific tions
Repl cement P rts Di gr ms
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T ble of Contents
240 ONE MAN HOLE DI ER, FORM OM26010601, VERSION 2.0, AUTHORIZATION: DVR, PA E: 2
Notice to Oper tors
F YOU CAN NOT READ OR DO NOT FULLY UNDERSTAND THE CONTENTS OF TH S
MANUAL, PLEASE CONTACT THE FACTORY FOR PROPER ASS STANCE BEFORE
ATTEMPT NG TO OPERATE TH S PRODUCT.
S TU NO PUEDES LE'ER O NO COMPRENDES EL CONTEN DO DE ESTE MANUAL
FAVOR DE PONERSE EN CONTACTO CON LA. FABR CA PARA ASS STENC A- A
PROP A ANTES DE NTENTAR PARA OPERAR ESTE PRODUCTO.
SOLLTEN S E D ESE GEBRAUCHSANWE SUNG N CHT LESEN KOENNEN ODER ES
N CHT VOLLKOMMEN VERSTEHEN, WENDEN S E S CH B TTE AN DEN
HERSTELLER FUER R CHT GE H LFE EHE S E VERSUCHEN D ESES PRODUKT ZU
OPER EREN.
S VOUS NE L SEZ OU NE COMPRENDRE ENT EREMENT LES MAT ERES DE CE
MANUEL, S' L VOUS PLA T, CONTACTEZ L'US NE POUR L'ASS STANCE
APPROPR EE AVANT D'UT L SER LE PRODU T.
These safety alert symbols identify important safety messages in this manual. When you see these symbols,
be alert to the possibility of personal injury and carefully read the message that follows.
Do not allow anyone to operate the Hole Digger without first reading this Operator Manual and becoming
familiar with its operation. The manufacturer of this Hole Digger has gone to great extremes to provide the
owner(s) and/or operator(s) with the finest equipment available for its intended job function of digging holes
in ice and earth formations. Yet, the possibility exists that the Hole Digger can be utilized in and/or subjected
to job applications not perceived and/or anticipated by the manufacturer. Such misuse and/or misapplication
of the Hole Digger can lead to the possibility of serious damage, injury or even death. It is the responsibility
of the owner(s) and/or operator(s) to determine that the Hole Digger is being utilized and/or operated within
the scope of its intended job function. It is the responsibility of the owner(s) and/or operator(s) to establish,
monitor and constantly upgrade all safety programs and/or practices utilized in and for the operation of the
Hole Digger. The purpose of such programs is to provide for owner(s') and/or operator(s') safety. Operators
must be instructed to recognize and avoid unsafe conditions associated with their work (29 CFR 1926.21
(b)(2)) and/or applicable updated revisions. It is the responsibility of the owner(s) and/or operator(s) to
determine that no modifications and/or alterations have been made to the Hole Digger. Modifications and/or
alterations can lead to the possibility of serious damage, injury or even death. It is the responsibility of the
owner(s) and/or operator(s) to make this Operator Manual available for consultation during all phases of
operation. Refer to OSHA 2207 which contains all OSHA job safety and health rules and regulations (1926
and 1910) covering construction.
The concept of portable, one and two man operated, hole digging equipment has been successfully
utilized for over forty years as a practical solution to many types of hole digging job requirements.
The basic concept is proven and well accepted within the associated marketplaces as an alternative
method to manual labor and/or larger, mounted earth drilling machinery. Use of a Hole Digger
requires strenuous work activity. This type of work activity can be considered to be greater in
magnitude than that experienced with the use of many other types of both light construction and
240 ONE MAN HOLE DI ER, FORM OM26010601, VERSION 2.0, AUTHORIZATION: DVR, PA E: 3
240 ONE MAN HOLE DI ER, FORM OM26010601, VERSION 2.0, AUTHORIZATION: DVR, PA E: 4
lawn and garden related equipment. This type of work activity should only be attempted by operators
of adequate physical size and stature, mental awareness and physical strength and condition. Each
operator is required to supply a resultant force that counteracts/balances and/or resists the natural
torque and kickback forces generated during the hole digging process. The body parts most
noticeably affected during the digging process are the arms, hands, wrists, shoulders, lower back
and legs. The hole digging process can also produce excessive stress/strain directly to the back
muscles, spinal vertebrae and many other body parts. Back related pain can be a side effect of the
hole digging process. An operator with a chronic back related problem or a history of back and/or
other medically related problems should not attempt to utilize the Hole Digger. Use of the Hole
Digger may only aggravate this and any other medically related problem. The torque and kickback
forces generated and/or encountered correspond to the natural laws of physics and are inherent to
the hole digging process. They can not be changed or totally eliminated with portable one and two
man operated, hole digging equipment of this design. Proper operating positions and techniques, as
outlined in this manual, can be successfully utilized to minimize the effects of the torque and
kickback forces upon the human body. Because of the diverse type of prevailing digging conditions,
operator experience levels and operator physical characteristics, no warranty, guarantee,
representation and/or liability is made by the factory as to the absolute correctness or sufficiency of
any operational procedure, operational position and/or technique. There is no absolute guarantee
that an operator of any given experience level, physical size and/or physical condition will be
immune to the possibility of and/or probable physical side effects of the normal hole digging
process. The normal hole digging process includes the auger striking buried obstructions (roots,
rocks, etc.) and the resulting torque and kickback forces created. Each potential operator of the Hole
Digger must be made aware of and assume the operational and physical liability described and/or
associated with the hole digging process when utilizing the Hole Digger. Each potential operator not
willing to assume the operational and physical liability described and/or associated with the hole
digging process should not operate the Hole Digger. Proper levels of operator experience, skill and
common sense are essential for maximizing the safe and efficient operation of the Hole Digger.
Record the Hole Digger and engine serial numbers in the spaces provided below.
_______________ Model Number
_______________ Serial Number
_______________ Engine Serial Number
_______________ Date of Purchase
Specifications and design are subject to change without notice or obligation. All specifications are general
in nature and are not intended for specific application purposes. eneral Equipment Company reserves the
right to make changes in design, engineering or specifications and to add improvements or discontinue
manufacture at any time without notice or obligation. eneral Equipment Company and its agents accept no
responsibility for variations which may be evident in actual products, specifications, pictures and
descriptions contained in this publication.
240 ONE MAN HOLE DI ER, FORM OM26010601, VERSION 2.0, AUTHORIZATION: DVR, PA E: 5
Oper tor Instruction l D t Sheet
The following undersigned operators of the Hole Digger described and/or pertaining to this Operator
Manual have received formal safety and operational information/instruction from the undersigned
owner(s)/instructor(s) in accordance to OSHA 29 CFR 1926.21 (b)(2) and/or applicable updated revisions
pertaining to, but not necessarily limited to the:
1) READ NG, COMPREHENS ON AND ACKNOWLEDGEMENT OF THE MATER AL COMPR S NG THE
ENT RE CONTENTS OF THE APPL CABLE OPERATOR MANUAL FOR THE HOLE D GGER.
2) FORMAL ZED OPERATOR'S SAFETY PROGRAM TO BE DEV SED BY THE OWNER OF THE HOLE
D GGER N CONJUNCT ON W TH THE CONTENTS OF THE APPL CABLE OPERATOR MANUAL FOR
THE HOLE D GGER.
3) OSHA RULES AND REGULAT ONS RESEARCHED FOR AND/OR BY THE OWNER OF THE HOLE
D GGER AND DEEMED APPL CABLE TO THE SAFE AND PROPER USE AND/OR OPERAT ON OF THE
THE HOLE D GGER FOR ANY SPEC F C JOB APPL CAT ON.
4) LOCAL LAWS, REGULAT ONS AND CUSTOMS RESEARCHED FOR AND/OR BY THE OWNER OF
THE HOLE D GGER AND DEEMED APPL CABLE TO THE SAFE AND PROPER USE AND/OR
OPERAT ON OF THE HOLE D GGER FOR ANY SPEC F C JOB APPL CAT ON.
5) FORMAL ZED MA NTENANCE PROGRAM FOR THE HOLE D GGER TO BE DEV SED BY THE
OWNER OF THE HOLE D GGER N ACCORDANCE W TH, BUT NOT NECESSAR LY L M TED TO, THE
SPEC F CAT ONS, GU DEL NES AND OPERAT ONAL NFORMAT ON CONTA NED N THE
APPL CABLE OPERATOR MANUAL.
6) COMPREHENS VE OPERAT ONAL NSTRUCT ONS FOR THE CORRECT AND PROPER USE OF
THE HOLE D GGER AS PER THE CONTENTS OF THE APPL CABLE OPERATOR MANUAL.
_______________ Operator _______________ Owner/Instructor __________ Date
_______________ Operator _______________ Owner/Instructor __________ Date
_______________ Operator _______________ Owner/Instructor __________ Date
_______________ Operator _______________ Owner/Instructor __________ Date
_______________ Operator _______________ Owner/Instructor __________ Date
_______________ Operator _______________ Owner/Instructor __________ Date
NOTE: NSERT COP ES OF TH S PAGE W TH N THE OPERATOR MANUAL F SPACE FOR
ADD T ONAL OPERATORS S REQU RED.
240 ONE MAN HOLE DI ER, FORM OM26010601, VERSION 2.0, AUTHORIZATION: DVR, PA E: 6
S fety Prec utions
THE FOLLOW NG SAFETY PRECAUT ONS
PROV DE SOME COMMON SENSE GU DES TO
PROMOTE SAFETY AND EFF C ENCY W TH THE
200 SER ES HOLE D GGERS. NO WARRANTY,
GUARANTEE OR REPRESENTAT ON S MADE BY
THE MANUFACTURER AS TO THE ABSOLUTE
CORRECTNESS OR SUFF C ENCY OF ANY
NFORMAT ON OR STATEMENT. THESE SAFETY
PRECAUT ONS ARE NTENDED TO DEAL
PR NC PALLY W TH COMMON PRACT CES AND
COND T ONS ENCOUNTERED N THE USE OF THE
HOLE D GGER AND ARE NOT NTENDED TO BE
ALL NCLUS VE. PROPER LEVELS OF OPERATOR
EXPER ENCE, SK LL AND COMMON SENSE ARE
ESSENT AL FOR SAFE AND EFF C ENT
OPERAT ON.
THE ENG NE EXHAUST FROM TH S PRODUCT
CONTA NS CHEM CALS KNOWN TO THE STATE
OF CAL FORN A TO CAUSE CANCER, B RTH
DEFECTS OR OTHER REPRODUCT VE HARM.
TH S STATEMENT S MADE N COMPL ANCE TO
CAL FORN A PROPOS T ON 65.
NCORRECT USE OF THE HOLE D GGER CAN
RESULT N PROPERTY DAMAGE, PERSONAL
NJURY OR EVEN DEATH. TO REDUCE TH S
POSS B L TY, G VE COMPLETE AND UND V DED
ATTENT ON TO THE JOB AT HAND AND FOLLOW
THESE SAFETY PRECAUT ONS:
PREPARAT ON.
1) The 200 Series Hole Diggers are a specialized type
of powered equipment, designed for a specific job
function and requires adequate and thorough
instruction BEFORE it is operated. The size, power,
complexity and operating characteristics of this type of
powered equipment would dictate that each operator
must receive adequate, professional instruction
regarding the proper operation of this Hole Digger
before being allowed to utilize it. BEFORE attempting
to utilize this Hole Digger, read this Operator Manual,
view the applicable Safety and Operational Information
Video and the material supplied by the engine
manufacturer to familiarize each operator with its
correct operating procedures. Avoid the urge not to
take the necessary time to read this Operator Manual
before operating the Hole Digger. DO NOT OPERATE
THE HOLE DI ER UNTIL EACH OPERATOR
COMPLETELY COMPREHENDS THE CONTENTS
OF THIS MANUAL, THE APPLICABLE SAFETY AND
OPERATIONAL INFORMATION VIDEO, APPLICABLE
SUPPLEMENTAL INFORMATION AND THE
INFORMATION SUPPLIED BY THE EN INE
MANUFACTURER.
2) Develop a comprehensive program for the safe
operation of the Hole Digger by its owner(s) and/or
operator(s). Such a program will include, but is not
limited to: instructional requirements for operation,
applicable OSHA requirements, local laws and
regulations, job site safety and a Hole Digger
maintenance program. Constantly examine and
upgrade this program to guarantee owner(s) and/or
operator(s) safety. Each operator must be fully
instructed regarding the specifics of this safety
program.
3) Determine that the Hole Digger is in its original,
factory configuration and has not been modified in any
manner. Many modifications can result in potentially
dangerous configurations that can lead to property
damage and/or personal injury. If there are any
questions about possible modifications made to the
Hole Digger, contact the Customer Service
Department for specific information BEFORE
utilization. There is no charge for this service.
4) Minors should never be allowed to operate the Hole
Digger. Bystanders, especially children and animals,
should not be allowed in the area where the Hole
Digger is in use. The hole digging process can result in
flying particles being emitted at high velocity and
striking the operator and/or onlookers. This can lead to
the possibility of property damage and/or personal
injury. Keep all body parts, loose clothing, foreign
objects and onlookers clear of the rotating auger
and/or auger extensions.
5) Operators must be in proper physical condition,
mental health and not under the influence of any
substance (drugs, alcohol, etc.) which might impair
vision, dexterity or judgment. Working with the Hole
Digger is strenuous. If you have any condition that
might be aggravated by strenuous work, check with
your doctor BEFORE operating the Hole Digger. uard
against the possibility of back related injuries. Always
lift the Hole Digger with leg muscles and not with the
back. Operators must be of adequate height so that for
any given operating configuration, the operator
handle(s) remain below their shoulder sockets. Do not
operate the Hole Digger if this condition is not satisfied.
The 200 Series Hole Diggers require that the operator
be of proper height, weight and strength to maximize
240 ONE MAN HOLE DI ER, FORM OM26010601, VERSION 2.0, AUTHORIZATION: DVR, PA E: 7
digging efficiency and minimize the possibility of
personal injury.
6) Prolonged use of the Hole Digger (or other, similar
machines) exposes the operator to vibrations which
may produce Whitefinger Disease (Raynaud's
Phenomenon). This phenomenon reduces the hand's
ability to feel and regulate temperature, produces
numbness and burning sensations and may cause
nerve and circulation damage and tissue necrosis.
Antivibration systems do not guarantee that you will not
sustain Whitefinger Disease. Therefore, continuous
and regular users should closely monitor the condition
of their hands and fingers. After each period of use,
exercise to restore normal blood circulation. If any of
the symptoms appear, seek medical advice
immediately.
7) Clothing must be sturdy and snug fitting, but allow
complete freedom of movement. Never wear loose
fitting jackets, scarves, neckties, jewelry, flared or
cuffed pants or anything that could become caught on
controls or moving parts. Wear long pants to protect
your legs. Protect your hands with heavy duty, nonslip
gloves to improve your grip. ood footing is most
important when operating the Hole Digger. Wear sturdy
boots with nonslip soles. Steel-toed safety shoes are
highly recommended. Keep shoes properly laced.
Never wear tennis shoes or other, similar type shoes
which afford little or no protection. Wear an approved
safety hard hat to protect the operatorʼs head where
there is a danger of head injuries. Noise, generated by
the engine of the Hole Digger and the actual process
itself, can damage your hearing. Wear approved sound
barriers (ear plugs or ear mufflers) to protect your
hearing. Continuous and regular operators should
have their hearing checked regularly.
8) Visually inspect the Hole Digger, auger(s), auger
extension, and accessories for damaged or worn parts.
Inspect each auger for the proper screw bit and blade.
Look for loose and/or damaged handle grip areas.
Check for loose and/or broken parts. Determine that
operator controls work freely, all safety devices are
operative and information/safety decals are readable.
Check to determine that the Hole Digger and all related
accessories are in good mechanical condition
BEFORE utilization.
9) Contact appropriate representatives to determine
if/where electrical cables, gas lines and other
hazardous items are buried under the work surface
BEFORE utilization. Some Hole Diggers feature
operator handles constructed of a non metallic,
composite material. Use of this material does not
guarantee the operator will be properly insulated from
contact with charged electrical cables. The Hole Digger
and related accessories are not classified as being
insulated. Contact with buried electrical cables, gas
lines and other hazardous items can result in
electrocution and/or an explosion.
10) Know how the controls operate. Know how to stop
the engine quickly in an emergency. Always start the
engine according to the instructions as outlined in this
manual to minimize the possibility of unexpected or
uncontrolled auger rotation. Unexpected auger rotation
can cause loss of machine control, and the possibility
of property damage and/or personal injury.
11) Never exceed the recommended capacities of the
Hole Digger. Refer to the Specific tions section of this
manual for more detailed information. Always utilize
the correct auger and auger extension series designed
for use with the Hole Digger. Some Hole Diggers can
utilize specially designed augers intended for drilling
holes through ice. Such an auger will find limited
success when utilized to dig earth. Earth augers are
not designed to drill through ice. Use of an incorrect
auger or auger series can result in property damage
and/or personal injury.
12) The 200 Series Hole Diggers are powered by
gasoline engines which produce Carbon Monoxide
fumes during the combustion process. Carbon
Monoxide fumes are poisonous. Breathing Carbon
Monoxide fumes while operating the Hole Digger can
result in property damage and/or personal injury. The
normal operation of the Hole Digger is outdoors where
the potential effects of Carbon Monoxide to the
operator are minimized. If the Hole Digger is operated
in a closed area (indoors or outdoors), determine if
supplemental ventilation is required to minimize the
potential effects of Carbon Monoxide to the operator.
Follow all current OSHA regulations pertaining to
ventilation.
OPERAT ON.
1) ive complete and undivided attention to the job at
hand. Do not chew gum, smoke and/or use smokeless
tobacco while utilizing the Hole Digger. Do not attempt
to eat and/or drink while utilizing the Hole Digger.
Determine that eyeglasses and/or hearing aid devices
are properly secured.
2) asoline is an extremely flammable fuel. Use
extreme caution when handling gasoline or mixing fuel.
Always utilize UL® approved containers for the storage
and/or transportation of fuel. Do not smoke or bring any
fire or flame near the fuel. Always shut off the engine
and allow it to cool before refueling. Never remove the
gasoline tank filler cap while the engine is running.
Never operate an engine without a gasoline tank filler
cap. Select bare ground for fueling and move at least
10 feet from the fueling spot before starting the engine.
240 ONE MAN HOLE DI ER, FORM OM26010601, VERSION 2.0, AUTHORIZATION: DVR, PA E: 8
Wipe off any spilled fuel before starting the engine and
check for leakage. If a fuel or oil leak is found, do not
start or run the engine until the leak is fixed and the
spillage has been wiped away. Take care not to get fuel
or oil on your clothing. If this happens, change your
clothing immediately. Some 200 Series Hole Diggers
utilize a 2 Stroke gasoline engine. Two Stroke engines
require the addition of oil mixed with the gasoline for
lubrication. The 240 Hole Digger utilizes a Four Stroke
engine and does not require oil to be mixed with
gasoline. Before operating the Hole Digger, refer to the
Specific tions section of this manual for more
detailed information regarding gasoline and lubrication
requirements.
3) Operate the Hole Digger with the correct number of
personnel required for the specific unit. Refer to the
Specific tions section of this manual for more
detailed information. Never attempt to utilize a two man
Hole Digger with only one operator. One operator can
not exercise adequate and safe control of the Hole
Digger. Personal injury will result. Use of a one man
Hole Digger by more than one operator can lead to
confusion and loss of control, resulting in damage
and/or personal injury. Use of a two man Hole Digger
by more than two operators can lead to confusion and
loss of control, resulting in damage and/or personal
injury. If it is felt that a greater number of operators is
required to furnish additional "down pressure" to the
auger, STOP and contact the Customer Service
Department for specific operational and
service/maintenance information. There is no charge
for this service.
4) Do not operate the Hole Digger with onlookers close
by. Caution all onlookers to stand clear. Keep all body
parts, loose clothing and foreign objects clear of the
rotating auger. Do not utilize a shovel and/or foreign
object to remove the loose soil from a hole area while
the Hole Digger is in use. Such a practice can cause
the shovel and/or foreign object to become entrapped
by the rotating auger, leading to the possibility of
property damage and/or personal injury. Replacing
Pengo® type auger teeth requires that they be installed
with a hammer. Use only a soft type hammer to install
these types of teeth. uard against the possibility of
injuries: wear safety glasses and appropriate safety
clothing. Caution all onlookers about the possibility of
flying debris.
5) Start the Hole Digger by utilizing proper procedures.
The 240 Hole Digger is designed for the engine to be
started by the operatorʼs left hand only. The operatorʼs
right hand controls the twist grip throttle and engine
speed. Reversing the process by starting the engine
with the right hand will position the hot engine muffler
in close proximity to the operatorʼ s body. This is not an
approved configuration because it can result in injury
from the hot muffler and/or breathing Carbon Monoxide
fumes during operation. If you have any questions
regarding proper starting procedures, contact the
Customer Service Department BEFORE utilization.
There is no charge for this service.
6) Start and operate the Hole Digger only in a well
ventilated, outdoor area. Operate the Hole Digger only
when/where visibility and light are adequate for the job
at hand. Work carefully. Always hold the Hole Digger
firmly with both hands. Wrap your fingers around the
handle grips/gripping areas, keeping the grips/gripping
areas cradled between your thumbs and forefingers.
Always make sure the operator handle and
grips/gripping areas are in good condition and free of
moisture, pitch, oil or grease. Wear gloves to improve
your grip. Never leave the Hole Digger running
unattended.
7) Stop the engine between each hole to minimize the
potential of personal injury. Special care must be
exercised in slippery conditions and in difficult,
overgrown terrain. Watch for hidden obstacles such as
tree stumps, roots and ditches to avoid stumbling.
Keep proper footing and balance at all times. The
normal use of the Hole Digger is on level ground. Other
digging terrains can be dangerous and should be
avoided. Only properly trained operators should
attempt these techniques.
8) Contact with a hot engine muffler can cause property
damage and/or personal injury. Remain clear of a hot,
engine muffler at all times. Do not overspeed the
engine by altering the governor setting or by
disconnecting the engine governor (if so equipped).
Serious damage to the engine and/or personal injury
can result.
9) Because this Hole Digger is classified as a low cost,
hand held, low horsepower, portable type machine, it is
limited in the number of practical and/or suitable job
applications for this type of equipment. A particular job
site, actual soil conditions, job specifications and
operator experience/skill/common sense may dictate
that a different type of machine (with characteristics of
higher purchase cost, being mounted to a carrier
vehicle, with greater horsepower and less mobility),
method and/or process be utilized to properly complete
the job with the degree of efficiency and safety
required. Contact the Customer Service Department
for specific information regarding suitable job
applications, job sites, soil conditions and operator
240 ONE MAN HOLE DI ER, FORM OM26010601, VERSION 2.0, AUTHORIZATION: DVR, PA E: 9
experience/skill/common sense recommendations for
this Hole Digger BEFORE utilization. There is no
charge for this service.
MA NTENANCE REPA R AND STORAGE.
1) Use only genuine, approved replacement parts for
maintenance and repair. Use of parts manufactured by
others can result in property damage and/or personal
injury.
2) Follow the Service instructions as outlined in the
appropriate section of the Operator Manual.
3) Always stop the engine and disconnect the spark
plug wire BEFORE checking or working on the Hole
Digger.
4) Always properly maintain the Hole Digger.
Frequently check all fasteners and individual parts.
Built in safety features are effective only if they are
maintained in good working condition. Determine that
the engine throttle control/throttle cable assembly is
not damaged and allows for complete freedom of
movement. Do not operate the Hole Digger with a
damaged engine throttle control/throttle cable
assembly. Determine that the centrifugal clutch
assembly is not damaged, modified or worn past its
useful service life. Replace any questionable part or
assembly with a genuine, approved replacement part.
Do not foresake proper maintenance for the price of a
few replacement parts. Proper maintenance does not
cost---it actually pays dividends. Do not attempt any
maintenance or repair work not described in the
Operator Manual. Have such work performed at your
dealer's servicing shop.
5) Replace the auger teeth/blade and screw bit when
signs of excessive wear are seen. When such parts are
not replaced at proper intervals, undo wear will occur
at the boring head and auger flighting. The end result
is an inverted cone configuration for the auger, which
usually requires complete replacement. FI URE 1.
Digging with equipment that is past its useful service
life and/or has not been properly maintained can cause
property damage and/or personal injury. Auger service
life can be greatly extended with constant auger wear
part maintenance.
FI URE 1
6) Utilize only the factory supplied auger pin for
connecting the auger and auger extension to the Hole
Digger. Use of any other connecting device, including
cap screws, bolts, pins, etc., can result in damage to
the Hole Digger driveshaft and/or auger drive hub.
Improper connecting devices can cause property
damage and/or personal injury.
7) A worn or damaged engine muffler is a fire hazard
and may cause loss of hearing. Check to see that the
muffler is in good condition. If the muffler is equipped
with a spark arresting device, determine that it is in
proper working condition at regular service intervals.
Replace the spark arresting device with an approved
replacement if there is any question of its integrity. It is
the responsibility of the owner(s) and/or operator(s) to
provide for and properly maintain a USDA approved,
spark arresting muffler in an area where specified by
law. Check with appropriate governing agencies for
more specific information. The Hole Digger must not
be operated if the muffler is faulty or has been
removed. Contact with a hot muffler can cause
property damage and/or personal injury. Remain clear
of a hot engine muffler.
8) Consult the material supplied by the engine
manufacturer for specific information relative to proper
engine oil and gasoline recommendations for the
engine utilized on the Hole Digger.
9) Consult the material supplied by the engine
manufacturer for specific information relative to long
term storage of the engine utilized on the Hole Digger.
240 ONE MAN HOLE DI ER, FORM OM26010601, VERSION 2.0, AUTHORIZATION: DVR, PA E: 10
Assembly
Open the shipping carton immediately upon receipt.
Visually inspect the contents of the carton for freight
damage and/or missing parts. If shipping damage is
evident, contact the delivering carrier immediately to
arrange for an inspection of the damage by their claims
representative. Federal law requires that a claim be
filed within a specified time period. If missing parts are
detected, notify your dealer who will assist you in
obtaining them.
Included in the shipment should be the following:
1 each, engine/handle/transmission assembly.
1 each, bottle of engine oil.
1 each, bag containing the Operator Manual and other
publications.
The Hole Digger is shipped from the factory completely
assembled. The transmission is lubricated at the
factory and will not require further servicing prior to the
initial usage. Visually inspect the throttle control,
throttle cable assembly and the carburetor for signs of
damage. Rotate the throttle control to determine that
the spring mechanism allows the throttle lever of the
carburetor to travel from its low speed to the high
speed and back position without any restriction and/or
binding.
DETERM NE THAT ALL COMPONENTS OF THE
ENG NE THROTTLE CONTROLASSEMBLYALLOW
FOR PROPER FUNCT ON. THE THROTTLE LEVER
OF THE CARBURETOR MUST RETURN THE
ENG NE TO THE DLE SPEED AS STATED N THE
SPEC F CAT ON SECT ON OF TH S MANUAL
WHEN THE TW ST GR P THROTTLE S RELEASED
BY THE OPERATOR. F TH S DOES NOT OCCUR,
CONTACT YOUR DEALER OR THE CUSTOMER
SERV CE DEPARTMENT FOR SPEC F C
NFORMAT ON RELAT VE TO CORRECT NG TH S
OCCURANCE. DO NOT OPERATE THE HOLE
D GGER UNT L TH S OCCURANCE HAS BEEN
CORRECTED. AN MPROPERLY FUNCT ON NG
THROTTLE CONTROL CAN RESULT N PROPERTY
DAMAGE AND/OR PERSONAL NJURY.
Check all fasteners for security. Consult a fastener
torque chart for the proper torque value if any fastener
is found to require retorquing.
Before St rting the Engine
F LL NG THE ENG NE GASOL NE TANK.
Tools Required:
1 each, small, clean funnel.
The 240 Hole Digger utilizes an all-position, Four
Stroke, gasoline engine. While this engine may
have the same physical appearance of a
conventional Two Stroke engine, the lubrication
systems are completely different. The Subaru
EH035 engine does not require oil to be mixed with
gasoline. The crankcase oil does not function as a
reservoir for an oil injection system.
1) Carefully clean the filler cap and surrounding area to
insure that no dirt or debris falls into the gasoline tank.
2) Fill the fuel tank with fresh, clean, unleaded
automotive gasoline. Leaded "regular" grade gasoline
is an acceptable substitute. DO NOT USE ASOLINE
CONTAININ METHANOL (WOOD ALCOHOL).
asoline containing a maximum of 10 per cent ethanol
or grain alcohol (sometimes referred to as asohol)
may be used but requires special care when the engine
is stored for extended periods.
3) Use of a properly blended gasoline for operation
during the intended season will result in easier engine
starting. Do not use gasoline left over from the previous
season of operation.
4) Never fill the fuel tank completely full. Instead, fill the
fuel tank to within 1/4 to 1/2 inch of the top of the tank
to provide space for fuel expansion. Always wipe any
fuel spillage from the engine and the Hole Digger
before starting the engine.
DO NOT SMOKE NEAR THE GASOL NE TANK. DO
NOT F LL THE GASOL NE TANK W TH THE
ENG NE RUNN NG OR F T S HOT. ALLOW AMPLE
T ME BETWEEN EACH REFUEL NG FOR THE
ENG NE TO COOL.
240 ONE MAN HOLE DI ER, FORM OM26010601, VERSION 2.0, AUTHORIZATION: DVR, PA E: 11
F LL NG THE ENG NE CRANKCASE W TH O L.
Tools Required:
1 each, small, clean funnel with a flexible extension
spout.
Filling the engine crankcase with oil will require a level
working platform of sufficient size and appropriate
height. As alternative, the transmission driveshaft can
be securely mounted in a suitable bench vice.
1) Wipe any dust or dirt from the crankcase
dipstick/filler plug area. Remove the dipstick/filler plug.
2) Using the funnel, add oil to the engine crankcase.
For proper classifications and/or amount, consult the
material supplied by the engine manufacturer for
specific information.
3) Replace the dipstick/filler plug and tighten. Wipe off
any excess spilled oil. Properly dispose of the spilled
oil.
4) Consult the material supplied by the engine
manufacturer for other service related information
including oil change interval.
Do not operate the Hole Digger unless proper oil
level is maintained. mproper oil level can result in
property damage and/or personal injury. Consult
the material supplied by the engine manufacturer
for information relative to proper maintenance
procedures.
Digging Oper tion
OPERAT ONAL D SCLA MER.
THE MANUFACTURER OF TH S HOLE D GGER
MAKES NO WARRANTY OR GUARANTEE THAT T
S MERCHANTABLE AND/OR SU TABLE FOR ANY
SPEC F C JOB APPL CAT ON AND THAT T W LL
HAVE THE POWER REQU RED TO D G A
SPEC F C D AMETER HOLE DOWN TO A SPEC F C
DEPTH N A SPEC F C SO L CLASS F CAT ON.
CAL FORN A PROPOS T ON 65 D SCLA MER.
THE ENG NE EXHAUST AND DUSTS/BY-
PRODUCTS FROM THE OPERAT ONAL PROCESS
OF TH S PRODUCT CONTA NS CHEM CALS
KNOWN TO THE STATE OF CAL FORN A TO
CAUSE CANCER, B RTH DEFECTS, OR OTHER
REPRODUCT VE HARM.
SPARK ARRESTOR D SCLA MER.
DO NOT OPERATE THE HOLE D GGER ON ANY
FOREST COVERED, BRUSH COVERED OR
GRASS COVERED, UN MPROVED LAND UNLESS
AN APPROVED SPARK ARRESTOR S
NSTALLED ON THE MUFFLER. THE SPARK
ARRESTOR MUST BE MA NTA NED N PROPER
WORK NG ORDER BY THE OWNER AND/OR
OPERATOR. N THE STATE OF CAL FORN A, THE
ABOVE S REQU RED BY LAW. OTHER STATES
MAY HAVE S M LAR LAWS. FEDERAL LAWS W LL
APPLY ON FEDERAL LANDS.
NFORMAT ON RELAT VE TO M N MUM
COMPONENT STANDARDS FOR THE OPERAT ON
OF THE HOLE D GGER.
For operational safety and overall productivity
considerations, it is required that specific Hole Digger
components meet minimum acceptable operational
standards BEFORE utilization:
1) Operator handle be properly mounted to the
transmission and be of proper structural integrity. If
cracking or deformation is detected, replace the
operator handle with a factory approved replacement
part only.
2) The twist grip throttle control be equipped with a
properly fitting handle grip of sufficient integrity to allow
for proper job function as outlined within this manual. A
loose fitting grip or a grip without a full end cap is not
permitted.
3) Throttle cable is in proper mechanical condition that
allows it to perform its intended job function as outlined
within this manual. A cable with bends, abrasions or
other damage that restricts or limits inner wire
movement must be replaced with a factory approved
replacement part only.
240 ONE MAN HOLE DI ER, FORM OM26010601, VERSION 2.0, AUTHORIZATION: DVR, PA E: 12
4) Throttle control is installed in the correct operating
p;position and be in a mechanical condition that allows
it to perform it intended job function as outlined within
this manual. A worn or damaged throttle control hand
grip or any other, internal part must be replaced with a
factory approved replacement part only. Do not
operate the Hole Digger with the cover plate not
properly installed or missing. Do not allow foreign
material to accumulate within the throttle control
assembly. Clean all throttle control components and
repair as necessary according to a regular
maintenance schedule.
5) An engine ON/OFF ignition switch that allows it to
perform its intended job function as outlined within this
manual. Replace any damaged engine ON/OFF
ignition switch with a factory approved replacement
part only.
6) Centrifugal clutch assembly in proper mechanical
condition that allows it to perform its intended job
function as outlined within this manual. Replace any
centrifugal clutch assembly with operational
characteristics that do not allow it to properly
disengage at the specific engine idle speed or properly
slip during overload conditions.
7)Each auger is in a structural condition that allows it to
perform its intended job function as outlined within this
manual. Bent auger axles should not exceed
established limits. Bent axles exceeding established
limits should be properly discarded.
8) Each auger has replaceable wear parts (screw bit
and blade) that allows it to perform its intended job
function as outlined within this manual.An auger with a
screw bit and/or blade worn past normal service life
limits is not to be utilized under any circumstances.
OPERAT ON OF A HOLE D GGER UT L Z NG
COMPONENTS NOT MEET NG M N MUM
OPERAT ONAL STANDARDS CAN RESULT N
PROPERTY DAMAGE AND/OR PERSONAL N
JURY.
GENERAL TRANSPORTAT ON NFORMAT ON.
When transporting the Hole Digger in/on a motor
vehicle, the gasoline tank breather vent (if so
equipped) must be completely closed to eliminate the
accidental seepage of fuel and resulting potential fire
hazard. In order to minimize the possibility of damage
to the Hole Digger, always transport it to the job site
with the auger disconnected. All equipment must be
secured in/on vehicles with suitable strapping or tie
downs. Personnel should not be transported in the
same compartment as equipment and fuel supplies.
Consult applicable OSHA regulations for specific
information.
An improperly secured Hole Digger and related
accessories can fall from a moving vehicle and
result in property damage and/or personal injury.
DETERM NAT ON OF POTENT AL SUBSURFACE
HAZARDS N THE PROPOSED D GG NG
LOCAT ON(S).
BEFORE ATTEMPT NG TO D G W TH THE HOLE
D GGER, D ETERM NE T HE P OT ENT AL
SUBSURFACE HAZARDS WH CH MAY EX ST N
THE PROPOSED D GG NG LOCAT ONS(S.
POTENT AL SUBSURFACE HAZARDS MAY
NCLUDE, BUT NOT BE L M TED TO, THE
FOLLOW NG:
1) ROCKS OF ANY SPEC F C S ZE.
2) D FFERENCES AND/OR VAR ANCES N
SPEC F C SO L CLASS F CAT ONS.
3) ROOTS OF ANY SPEC F C S ZE.
4) BUR ED MATER ALS SUCH AS GARBAGE AND
OTHER DEBR S.
5) BUR ED PRESSUR ZED P PEL NES
CONTA N NG SUCH MATER ALS AS NATURAL
GAS, PROPANE, ETC.
6) BUR ED ELECTR CAL CABLES.
BEFORE ATTEMPT NG TO D G W TH THE HOLE
D GGER N THE PROPOSED LOCAT ON(S),
CONTACT ALL APPROPR ATE AGENC ES TO
DETERM NE THE EXACT LOCAT ON9S) OF ALL
BUR ED P PEL NES, POWER L NES AND
MATER AL DEBR S. MANY UT L T ES AND OTHER
AGENC ES W LL PERFORM TH S TASK FOR A
M N MAL COST OR AT NO COST. HAVE ALL
SUBSURFACE HAZARDS MARKED FOR EASY
240 ONE MAN HOLE DI ER, FORM OM26010601, VERSION 2.0, AUTHORIZATION: DVR, PA E: 13
RECOGN T ON. D RECT CONTACT W TH THESE
AND OTHER SUBSURFACE HAZARDS CAN
RESULT N PROPERTY DAMAGE AND/OR
PERSONAL N JURY.
SET UP FOR D GG NG.
1) The Hole Digger is designed for one operator to
transport it by the operator handle to, while on, and
from the job site. Connect the auger to the Hole Digger
with the correct, factory-supplied auger pin. All 200
Series Hole Diggers utilize the 3/8 inch (9.5 mm)
diameter pin, PN 2121 Auger Pin.
The auger pin supplied with the Hole Digger is
designed to withstand the high stress encountered
while digging. Use of any other connecting device,
including cap screws, bolts, pins, etc., can result in
damage to the Hole Digger driveshaft and/or auger
drive hub. mproper connecting devices can cause
property damage and/or personal injury.
DO NOT CONNECT THE AUGER TO THE HOLE
D GGER W TH THE ENG NE RUNN NG. A SUDDEN
CHANGE N THE ENG NE SPEED W LL RESULT N
HOLE D GGER DAMAGE AND/OR PERSONAL
NJURY.
THE 240 HOLE D GGER S DES GNED FOR ONE
MAN OPERAT ON. USE BY MORE THAN ONE
OPERATOR W LL LEAD TO CONFUS ON AND
LOSS OF CONTROL, RESULT NG N HOLE
D GGER DAMAGE AND/OR PERSONAL NJURY.
THE CONTROLS ARE DES GNED FOR THE
OPERATOR TO CHOKE AND START THE ENG NE
W TH H S LEFT HAND WH LE OPERAT NG THE
THROTTLE CONTROL W TH H S R GHT HAND.
W TH TH S NTENDED OPERAT NG POS T ON, THE
ENG NE EXHAUST MUFFLER W LL FACE
OPPOS TE THAT OF THE OPERATOR. THE
RESULT NG FUMES AND HEAT W LL BE
D RECTED AWAY FROM THE OPERATOR. DO NOT
OPERATE THE HOLE D GGER W TH THE ENG NE
EXHAUST MUFFLER/SH ELD FAC NG TOWARD
THE OPERATOR. TH S OPERAT ON POS T ON
W LL ALLOW THE OPERATOR TO COME N
CONTACT W TH THE HOT SURFACE OF THE
ENG NE MUFFLER/SH ELD AND RESULT N
PROPERTY DAMAGE AND/OR PERSONAL NJURY.
T W LL ALSO ALLOW THE OPERATOR TO
NHALE H GH LEVELS OF CARBON MONOX DE
THAT CAN RESULT N PERSONAL NJURY.
START NG THE ENG NE W TH THE AUGER
CONNECTED TO THE AUGER DR VESHAFT.
1) rass and other overgrowth conditions will hamper
the digging characteristics of any earth auger by
becoming "clogged" around the auger blade and screw
bit. Removal of such obstructions from the hole
location will increase digging efficiency and overall
productivity.
2) Place the Hole Digger on the desired hole location.
The engine throttle is intended to be controlled by the
operator's right hand. The engine is intended to be
started by the operatorʼ s left hand. Do not operate the
Hole Digger with the engine throttle control being
controlled by the operator's left hand. The operator
should position himself on firm footing. FI URE 2.
FI URE 2
3) Turn the engine ON/OFF ignition switch to the ON
position. The switch is located near the underside of
the engine carburetor. FI URE 3.
240 ONE MAN HOLE DI ER, FORM OM26010601, VERSION 2.0, AUTHORIZATION: DVR, PA E: 14
FI URE 3
4) Depress the engine primer system bulb 7 to 10
times to help feed fuel directly into the carburetor.
FI URE 4.
FI URE 4
5) If the engine is cold or the ambient temperature is
low, move the choke control lever to the left/closed
position (away from the fuel tank) to deploy the engine
choke mechanism. A warm (previously run) engine
may not require choking. FI URE 5.
6) Using the right hand, rotate the engine throttle
control to the one half open position. This procedure is
to be followed regardless of the ambient temperature.
7) Using the left hand, pull the engine starter handle
slowly, until resistance is felt. This is the compression
point. Return the starter handle to its original position
and pull swiftly. Do not pull the rope out to its
maximum, extended length. Repeat as necessary for
the engine to start. Allow the starter handle to retract
slowly. If the engine does not start after five pulls, stop
FI URE 5
and consult the material supplied by the engine
manufacturer.
8) Allow the engine to properly "warm up" and operate
without the requirement for engine choke. As the
engine warms up, move the choke lever up to the
right/open position (toward the fuel tank). In cold
weather, initial starting will require more pulls because
an extremely rich fuel/air mixture is required. Check for
proper centrifugal clutch operation, excessive
transmission noise and/or vibration.
9) Stopping the Hole Digger is accomplished by
releasing the twist grip throttle control to its maximum,
closed (engine idle speed) position and then turning
the engine ON/OFF ignition switch to the OFF position.
The switch is located near the underside of the engine
carburetor.
f the Hole Digger and/or an individual
component/accessory does not appear to be
functioning properly, STOP and do not further
operate the Hole Digger until the corrective action
has been completed. f there are any questions
regarding the proper operation of the Hole Digger,
contact the dealer or the Customer Service
Department for assistance BEFORE further
utilization. There is no charge for this service.
OPERAT NG THE HOLE D GGER.
1) Do not attempt to begin digging with the Hole Digger
until the operator is ready to begin the process and is
in full control of the machine.
2) Rotate the twist grip throttle control
counterclockwise to increase the engine speed. The
240 ONE MAN HOLE DI ER, FORM OM26010601, VERSION 2.0, AUTHORIZATION: DVR, PA E: 15
auger will begin to rotate when the engine speed
reaches the centrifugal clutch initial engagement
speed.
3) Normal operating procedure for the Hole digger is to
dig with the engine operating at full speed. This will
allow the centrifugal clutch to become more firmly
engaged. This procedure will transmit more usable
power to the auger, resulting in greater productivity and
less component wear.
When digging in areas filled with known buried
obstructions such as tree roots, rocks and other
debris, operate the Hole Digger at less than full (an
intermediate) speed to insure a more rapid release
of the centrifugal clutch when an obstruction is
encountered. This is an industry wide operating
procedure.
4) The Hole Digger is equipped with a centrifugal clutch
assembly within the transmission, designed to slip
whenever overloaded or if the auger comes in contact
with a buried obstruction. Newtonʼs Laws of Physics
allow the centrifugal clutch assembly to ALWAYS slip
whenever overloaded or if the auger comes in direct
contact with a buried obstruction. The term slippage is
not intended to infer that the centrifugal clutch
assembly becomes fully disengaged with no
horsepower and torque is being transmitted to the
auger. In the slipping mode, a centrifugal clutch still
transmits a specific amount of horsepower and torque
to the auger. This specific amount of horsepower and
torque directly proportional to many factors including:
the mechanical condition of the centrifugal clutch
assembly and the rotational speed of the centrifugal
clutch assembly when the initial slippage occurs. The
response time for the centrifugal clutch assembly to
react to an overload condition is directly proportional to
its rotational speed. The higher the rotational speed
(RPM) of the centrifugal clutch at the time of overload,
the greater amount of time it requires to react and
actually slip. This phenomenon is inherent with all
centrifugal clutch assemblies. It is also inherent with all
powered equipment incorporating such a device.
STR K NG BUR ED OBSTRUCT ONS SUCH AS
TREE ROOTS, ROCKS AND OTHER DEBR S AT
ANY SPEC F C ENG NE OPERAT NG SPEED CAN
CAUSE THE HOLE D GGER TO TRANSM T
REACT ONARY TYPE " MPACT" LOADS TO THE
OPERATOR. THESE TYPES OF LOADS ARE
CHARACTER ZED BY A SHARP, PULSAT NG
MOVEMENT OF THE HOLE D GGER N A
COUNTERCLOCKW SE D RECT ON (AS V EWED
BY THE OPERATOR). SUCH LOADS CAN LEAD TO
THE LOSS OF OPERATOR CONTROLAND RESULT
N PERSONAL NJURY. THE OPERAT ONAL
EFFECTS ARE AL KE TO THAT OF UT L Z NG A
COMMON ELECTR C DR LL AND OTHER,
ROTAT ON TYPE, POWERED EQU PMENT. THE
RELATED PHENOMENON S NHERENT W TH ALL
SUCH TYPES OF ROTAT ON TYPE, POWERED
EQU PMENT AND S TERMED AS K CKBACK.
UNDERSTAND NG K CKBACK.
The operation of the Hole Digger involves engine
torque being transmitted and multiplied by the
transmission to the auger. The energy is then used to
dig holes. But to every force (action), there is always a
reaction force in the opposite direction. Thus, if the
auger contacts a buried obstruction, the operator will
feel the left side of the handle of the Hole Digger being
"thrusted" toward him. This "thrusting" force
experienced by the operator is called kickback. The
speed that the handle moves (and magnitude of the
resulting impact force) is directly proportional to the
amount/speed of the kickback force experienced by
the operator. The torque and kickback generated by
the digging process is inherent with a portable, one
man Hole Digger of this type. The operational effects
are alike to that of utilizing a common, electric drill and
other, rotation type, powered tools.
M N M Z NG K CKBACK FROM AN OPERAT ONAL
STANDPO NT.
The operator should keep the left side of the handle as
close to his body (left hip and leg areas) as possible to
minimize machine "kickback" when a buried
obstruction is encountered by the auger. Assume
operating positions that allow exercising reactive "body
english" against the torque sensation created by the
digging process. Keep upper arms as close to the
upper body as possible to maximize mechanical
leverage. An operator should position his back as
vertical as possible by bending the legs as required
during the digging process. Positioning the left foot
ahead of the right foot at a comfortable distance will
enhance proper body position. Maintaining proper
operating position is one of the most IMPORTANT and
EFFECTIVE procedures for controlling kickback.
Improper operating positions only aggravate the effects
240 ONE MAN HOLE DI ER, FORM OM26010601, VERSION 2.0, AUTHORIZATION: DVR, PA E: 16
of kickback upon the operator. FI URE 6 depicts a
proper operator position. FI URE 7 depicts an
improper operator position.
FI URE 6
FI URE 7
Keep a firm, but steady, grip on the operator handle.
Wrap your fingers around the handle and handle grip
areas, keeping them cradled between the thumbs and
forefingers. REMEMBER- PROPER OPERATOR
POSITIONS ENHANCE THE CONTROL OF THE
HOLE DI ER, REDUCE OPERATOR FATI UE,
AND INCREASE OVERALL PRODUCTIVITY.
Always make sure the operator handle and throttle
control handle grip areas are in good condition and
free of moisture, pitch, oil or grease. Wear gloves
to improve your grip. Bent and damaged handles,
a throttle control with a damaged/no grip or
handles without the gripping area material (PVC
coating) aggravate the effects of kickback upon the
operator by limiting control and comfort. Do not
operate the Hole Digger until such damage has
been repaired and/or replaced.
Always assume that any digging site can include
some form of buried obstruction. Always be
prepared for unexpected auger contact with buried
tree roots, rocks, etc. Under certain operating
conditions, striking a buried obstruction can
produce a severe and/or sudden kickback force to
the hip and/or leg areas. t is possible that this
kickback force can have the magnitude to "throw"
the operator from the Hole Digger. The operator
must maintain physical and mental alertness and
be prepared to accommodate this phenomenon.
Failure to properly accommodate this
phenomenon can result in property damage and/or
personal injury.
F, DUR NG THE HOLE D GG NG PROCESS THE
OPERATOR LOOSES FULL CONTROL OF THE
HOLE D GGER FOR ANY REASON THE
FOLLOW NG PROCEDURE S SUGGESTED:
AS A GENERAL RULE, AS SOON AS THE
OPERATOR REAL ZES THAT HE S N THE
PROCESS OF LOOS NG FULL CONTROL OF THE
HOLE D GGER, HE SHOULD "PUSH" H MSELF
FREE AND CLEAR FROM THE OPERATOR
HANDLE. THE PROCEDURE REQU RES THE
OPERATOR TO FULLY COMPREHEND THAT HE S
LOOS NG CONTROL OF THE HOLE D GGER AND
TO REACT ACCORD NGLY W TH APPROPR ATE
BODY MOVEMENT. MPROPER REACT ONS TO
TH S PHENOMENON CAN RESULT N PROPERTY
DAMAGE AND/OR PERSONAL NJURY.
240 ONE MAN HOLE DI ER, FORM OM26010601, VERSION 2.0, AUTHORIZATION: DVR, PA E: 17
A HOLE D GGER W TH AN MPROPERLY
MA NTA NED ENG NE THROTTLE CONTROL W LL
"SP N" ABOUT TS AX S WHEN THE OPERATOR
LOOSES PART AL AND/OR FULL CONTROL. N
THE EVENT OF TH S OCCURRENCE, DO NOT
ATTEMPT TO STOP THE ENG NE BY GRASP NG
THE ROTAT NG OPERATOR HANDLE. DO NOT
NTRODUCE ANY FORE GN OBJECT N AN
ATTEMPT TO STOP AND/OR BLOCK THE
ROTAT NG HANDLE. NSTEAD, ALLOW THE
ENG NE TO EXHAUST TS FUEL SUPPLY.
DETERM NE THAT ALL COMPONENTS OF THE
ENG NE THROTTLE CONTROL ASSEMBLYALLOW
FOR PROPER FUNCT ON BEFORE ATTEMPT NG
TO FURTHER UT L ZE THE HOLE D GGER.
M N M Z NG K CKBACK FROM A DES GN
STANDPO NT.
1) The 240 Hole Digger features the widest operator
handle of any machine in its class. The handle is
biomechanically positioned to enhance control by
allowing the operator to exert "body english" against
the torque and kickback generated by the digging
process.
2) The Hole Digger utilizes an antivibration material
(PVC coating) that is applied to the operator handle
during the manufacturing process. This material is
intended to enhance control and help dampen the
torque and kickback experienced by the operator
during the digging process.
3) The Hole Digger utilizes a twist grip throttle control.
This type of throttle control device was selected over
other configurations (for the operator handle
configuration utilized and specific digging power)
because it allows the operator to wrap his thumb
around the forefinger and effectively maximize the
strength in his right hand. This design feature affords
the operator greater control of the machine when
counteracting the effects of torque and kickback during
the digging process.
4) The Hole Digger is designed to utilize the eneral
Equipment Company PN 2121 Auger Pin to retain the
earth auger to the transmission driveshaft. This pin is
not intended to shear and absorb kickback related
forces when the earth auger comes in sudden contact
with a buried object. The pins are utilized for the
following reasons:
a) Such an occurrence (pin shear) would result in
extensive physical damage to the driveshaft and auger
drive hub.
b) Even if the physical damage to the Hole Digger
could be eliminated and/or minimized from the actual
process, it could require an unknown (and potentially
large) number of auger pins to complete the digging
process for any specific hole.
c) Even if the cost of replacement auger pins is not a
factor, the resulting productivity produced by the actual
process would not be deemed acceptable by industry
and/or social standards for the Hole Digger.
d) iven the infinite number of soil conditions which
could be encountered during the actual process, it is
impossible to design and supply a specific auger pin to
shear at a specific torque value which would produce
acceptable operational results for the Hole Digger.
e) iven the infinite number of potential operators and
their methods utilized during the actual process, it is
impossible to design and supply a specific auger pin to
shear at a specific torque value which would produce
acceptable operational results for the Hole Digger.
f) iven the infinite number of combinations of soil
conditions, auger diameters, auger boring head
conditions, digging depths, mechanical operating
conditions, operators and operator methods
encountered during the actual process, it is impossible
to design and supply a specific auger pin to shear at a
specific torque value which would produce acceptable
operational results for the Hole Digger.
6) For comparison purposes, it is interesting to note
that portable electric drills do not utilize any torque
limiting or clutch device to allow the drill bit to slip at
any specific torque value for drilling purposes. As with
a Hole Digger, such a device would make the drill a
useless tool because of the infinite number of potential
operating configurations and the inability to design
specific components to meet the requirements of each
operating configuration.
7) Many portable electric screwdrivers incorporate a
torque limiting or clutch device which allows the
operator to preset the torque output of the tool to a
specific value. This is especially useful and desirable
when hardware can be secured to specific torque
values according to industry published standards.
8) Portable electric drills and screwdrivers are two
separate tools designed for different and specific job
applications. The drilling process has different
requirements than the fastening process offered by
screwdrivers. The operational characteristics of
portable electric screwdrivers can not be confused
240 ONE MAN HOLE DI ER, FORM OM26010601, VERSION 2.0, AUTHORIZATION: DVR, PA E: 18
and/or substituted for the operational characteristics of
the Hole Digger.
OPERAT NG THE HOLE D GGER CONT NUED.
5) Auger boring heads are designed for digging in a
wide variety of soil types and/or conditions. Each
boring head design represents a compromise in overall
digging efficiency, productivity and service life for any
given soil condition. As a general rule, pressing down
on the operator handle is not required to initiate and/or
sustain the digging process. In most soils of moderate
Proctor Densities, augers will dig at rates that will not
cause the centrifugal clutch to overload and slip. In
most soft soils of low Proctor Densities (sandy, etc.), it
may be necessary to hold up on the operator handle to
reduce the digging rate of the auger. The natural
tendency of any auger design, in low Proctor Density
soil conditions, is to dig at a rate which causes the
centrifugal clutch to overload and slip. In most hard
soils of high Proctor Densities (hard clay, etc.), it may
be necessary to press down on the operator handle to
establish and maintain acceptable digging rates.
Proper digging procedure for any given soil condition is
the accumulation of actual experience, skill and
common sense. For any given soil condition, allow the
auger to dig at the rate most comfortable to the
operator, yet not causing the centrifugal clutch to
overload and slip.
An improper operating procedure can allow the
auger to "bind" and/or "bury" itself in the hole. This
is usually the result of allowing the auger to feed at
an excessive rate. This phenomenon is also
characteristic of digging with smaller (2 to 4 inch)
diameter augers. n this operating condition, the
Hole Digger is not capable of transmitting ample
power to "free" the auger. Do not continue to
overload and slip the centrifugal clutch assembly.
Damage to property and/or personal injury can
result if the operator looses partial and/or full
control of the Hole Digger while in this
configuration. STOP the Hole Digger and remove it
from the buried auger. The buried auger can then
be retrieved by various, industry accepted
methods. Contact the Customer Service
Department for specific information. There is no
charge for this service.
6) Some soil conditions may require more power to dig
the hole than the Hole Digger is capable of delivering
for a given auger diameter. This problem is more
noticeable in areas of semiconsolidated soils or
compacted soils having high Proctor Densities.
Examples of such soil types include: soft shale, hard
pan and caliche. The power required to dig a hole is
directly proportional to the soil resistance encountered
by the auger and the square of the auger diameter. For
example: an 8 inch diameter auger requires almost 2
times the power than that of a 6 inch diameter, given
identical soil conditions. This problem is best
minimized by the addition of suitable down force by the
operator and by utilizing augers equipped with new,
replacement screw bits and teeth. The manufacturer
makes no guarantee that the Hole Digger is capable of
digging a hole of specific diameter in any given soil
condition. Contact the Customer Service Department
for information relative to your specific requirements.
There is no charge for this service.
T S A M SCONCEPT ON THAT A LARGER
D AMETER HOLE CAN BE OBTA NED BY F RST
D GG NG AN N T AL HOLE W TH A SMALLER
"P LOT" AUGER AND THEN UT L Z NG A LARGER
D AMETER AUGER TO "REAM" THE HOLE TO THE
DES RED S ZE. TH S METHOD W LL NOT ALLOW
THE AUGER SCREW B T TO PRODUCE
SUFF C ENT D RECT ONAL STAB L TY FOR THE
LARGER D AMETER AUGER DUR NG THE
"REAM NG" PROCESS. TH S METHOD W LL
RESULT N PROPERTY DAMAGE, LOSS OF
OPERATOR CONTROL AND/OR PERSONAL
NJURY.
7) When digging in areas filled with tree roots, small
rocks or other, buried obstructions, allow the auger
blade to "chip away" at the obstruction until the auger
can pass by (by working the object loose) or go
through it (as in the case of penetrating tree roots).
This technique usually involves holding up on the
operator handle and establishing a minimal feed rate
for the auger. Proper operator position will minimize the
effects of kickback being generated by the auger blade
contacting the object. As with any hole digging
procedure, the mechanics of this technique require the
accumulation of actual experience and common sense
to maximize its effectiveness. Many times the size and
nature of the buried object will simply prevent the auger
from passing by or going through it. Continued use of
the Hole Digger will only contribute to equipment
damage and/or personal injury. Instead, remove the
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