Includes Safety, Service and Replacement Part Information
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 (DIGGER 5), +507.451.5511.
There is no charge for customer service activities .
Internet address: http://www.generalequip.com.
E-Mail location: general@generalequip.com.
Copyright 2006, General Equipment Company.
Manufacturers of light construction
equipment
Congratulations on your decision to purchase a General light construction product. From our
humble beginnings in 1955, it has been a continuing objective of General Equipment Company to
manufacture equipment that delivers uncompromising value, service life and investment return.
Becauseof thiscontinuous commitment for excellence,many products bearingthe General 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 General productdelivers 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.
General Equipment Company places great emphasis upon not only product performance, but also
on product safety. It is important to remember that this product willonly be as safe as the operators
whichutilizeit. It just makes good, commonsense to take the timeto readand fully understand the
contentsof this manualbefore 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 tocontactme. 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,
GENERAL EQUIPMENT COMPANY
Dennis Von Ruden
President
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 (DIGGER 5)
PREPARATION.
OPERATION.
MAINTENANCE, REPAIR, AND STORAGE.
Assembly
Before Starting the Engine
FILLING THE ENGINE GASOLINE TANK.
FILLING THE ENGINE CRANKCASE WITH OIL.
Digging Operation
OPERATIONAL DISCLAIMER.
CALIFORNIA PROPOSITION 65 DISCLAIMER.
SPARK ARRESTOR DISCLAIMER.
INFORMATION RELATIVE TO MINIMUM COMPONENT STANDARDS FOR THE OPERATION
OF THE HOLE DIGGER.
GENERAL TRANSPORTATION INFORMATION.
DETERMINATION OF POTENTIAL SUBSURFACE HAZARDS IN THE PROPOSED DIGGING
LOCATION(S).
SET-UP FOR DIGGING.
STARTING THE ENGINE WITH THE AUGER CONNECTED TO THE AUGER DRIVESHAFT.
OPERATING THE HOLE DIGGER.
UNDERSTANDING KICKBACK.
MINIMIZING KICKBACK FROM AN OPERATIONAL STANDPOINT.
MINIMIZING KICKBACK FROM A DESIGN STANDPOINT.
OPERATING THE HOLE DIGGER CONTINUED.
STOPPING THE HOLE DIGGER.
TEMPORARY STORAGE FOR THE HOLE DIGGER WHILE ON THE JOB SITE.
ADDING AND REMOVING THE NONFLIGHTED AUGER EXTENSION.
3
5
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7
9
10
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Service
CHANGING THE HOLE DIGGER TRANSMISSION LUBRICANT.
ENGINE SERVICE.
Troubleshooting
ENGINE.
OPERATIONAL PROBLEMS.
Storage
Specifications
Replacement Parts Diagrams
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 2
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Notice to Operators
IF YOU CAN NOT READ OR DO NOT FULLY UNDERSTAND THE CONTENTS OF THIS
MANUAL, PLEASE CONTACT THE FACTORY FOR PROPER ASSISTANCE BEFORE
ATTEMPTING TO OPERATE THIS PRODUCT.
SI TU NO PUEDES LE'ER O NO COMPRENDES EL CONTENIDO DE ESTE MANUAL
FAVOR DE PONERSE EN CONTACTO CON LA. FABRICA PARA ASSISTENCIA- A
PROPIA ANTES DE INTENTAR PARA OPERAR ESTE PRODUCTO.
SOLLTEN SIE DIESE GEBRAUCHSANWEISUNG NICHT LESEN KOENNEN ODER ES
NICHTVOLLKOMMENVERSTEHEN,WENDENSIESICHBITTEANDEN
HERSTELLER FUER RICHTIGE HILFE EHE SIE VERSUCHEN DIESES PRODUKT ZU
OPERIEREN.
SI VOUS NE LISEZ OU NE COMPRENDRE ENTIEREMENT LES MATIERES DE CE
MANUEL,S'ILVOUSPLAIT,CONTACTEZL'USINEPOURL'ASSISTANCE
APPROPRIEE AVANT D'UTILISER LE PRODUIT.
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 DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 3
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
oticeably affected during the digging process are the arms, hands, wrists, shoulders, lower back
n
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. General 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. General 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 DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 4
Operator Instructional Data 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
wner(s)/instructor(s) in accordance to OSHA 29 CFR 1926.21 (b)(2) and/or applicable updated revisions
o
pertaining to, but not necessarily limited to the:
1) READING, COMPREHENSION AND ACKNOWLEDGEMENT OF THE MATERIAL COMPRISING THE
ENTIRE CONTENTS OF THE APPLICABLE OPERATOR MANUAL FOR THE HOLE DIGGER.
2) FORMALIZED OPERATOR'S SAFETY PROGRAM TO BE DEVISED BY THE OWNER OF THE HOLE
DIGGER IN CONJUNCTION WITH THE CONTENTS OF THE APPLICABLE OPERATOR MANUAL FOR
THE HOLE DIGGER.
3) OSHA RULES AND REGULATIONS RESEARCHED FOR AND/OR BY THE OWNER OF THE HOLE
DIGGER AND DEEMED APPLICABLE TO THE SAFE AND PROPER USE AND/OR OPERATION OF THE
THE HOLE DIGGER FOR ANY SPECIFIC JOB APPLICATION.
4) LOCAL LAWS, REGULATIONS AND CUSTOMS RESEARCHED FOR AND/OR BY THE OWNER OF
THE HOLE DIGGER AND DEEMED APPLICABLE TO THE SAFE AND PROPER USE AND/OR
OPERATION OF THE HOLE DIGGER FOR ANY SPECIFIC JOB APPLICATION.
5) FORMALIZED MAINTENANCE PROGRAM FOR THE HOLE DIGGER TO BE DEVISED BY THE
OWNER OF THE HOLE DIGGER IN ACCORDANCE WITH, BUT NOT NECESSARILY LIMITED TO, THE
SPECIFICATIONS,GUIDELINESANDOPERATIONALINFORMATIONCONTAINEDINTHE
APPLICABLE OPERATOR MANUAL.
6) COMPREHENSIVE OPERATIONAL INSTRUCTIONS FOR THE CORRECT AND PROPER USE OF
THE HOLE DIGGER AS PER THE CONTENTS OF THE APPLICABLE 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: INSERT COPIES OF THIS PAGE WITHIN THE OPERATOR MANUAL IF SPACE FOR
ADDITIONAL OPERATORS IS REQUIRED.
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 5
Safety Precautions
HEFOLLOWINGSAFETYPRECAUTIONS
T
PROVIDE SOME COMMON SENSE GUIDES TO
PROMOTE SAFETY AND EFFICIENCY WITH THE
200 SERIES HOLE DIGGERS. NO WARRANTY,
GUARANTEE OR REPRESENTATION IS MADE BY
THEMANUFACTURER AS TO THE ABSOLUTE
CORRECTNESSORSUFFICIENCYOFANY
INFORMATION OR STATEMENT. THESE SAFETY
PRECAUTIONSAREINTENDEDTODEAL
PRINCIPALLY WITH COMMON PRACTICES AND
CONDITIONS ENCOUNTERED IN THE USE OF THE
HOLE DIGGER AND ARE NOT INTENDED TO BE
ALL INCLUSIVE. PROPER LEVELS OF OPERATOR
EXPERIENCE, SKILL AND COMMON SENSE ARE
ESSENTIALFORSAFEANDEFFICIENT
OPERATION.
THE ENGINE EXHAUST FROM THIS PRODUCT
CONTAINS CHEMICALS KNOWN TO THE STATE
OF CALIFORNIA TO CAUSE CANCER, BIRTH
DEFECTS OR OTHER REPRODUCTIVE HARM.
THIS STATEMENT IS MADE IN COMPLIANCE TO
CALIFORNIA PROPOSITION 65.
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
HE HOLE DIGGER UNTIL EACH OPERATOR
T
COMPLETELY COMPREHENDS THE CONTENTS
OF THIS MANUAL, THE APPLICABLE SAFETY AND
OPERATIONAL INFORMATION VIDEO,APPLICABLE
SUPPLEMENTALINFORMATIONANDTHE
INFORMATIONSUPPLIEDBYTHEENGINE
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
HoleDigger,contacttheCustomerService
DepartmentforspecificinformationBEFORE
utilization. There is no charge for this service.
INCORRECT USE OF THE HOLE DIGGER CAN
RESULT IN PROPERTY DAMAGE, PERSONAL
INJURY OR EVEN DEATH. TO REDUCE THIS
POSSIBILITY, GIVE COMPLETE AND UNDIVIDED
ATTENTION TO THE JOB AT HAND AND FOLLOW
THESE SAFETY PRECAUTIONS:
PREPARATION.
1) The 200 Series Hole Diggers are a specialized type
of powered equipment, designed for a specific job
functionandrequiresadequateandthorough
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
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. Guard
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 DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 6
digging efficiency and minimize the possibility of
personal injury.
lines and other hazardous items can result in
electrocution and/or an explosion.
) Prolonged use of the Hole Digger (or other, similar
6
machines) exposes the operator to vibrations which
mayproduceWhitefingerDisease(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
thesymptomsappear,seekmedicaladvice
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. Good 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.
0) Know how the controls operate. Know how to stop
1
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 Specifications 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.
8) Visually inspect the Hole Digger, auger(s), auger
OPERATION.
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
1) Give 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) Gasoline 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 DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 7
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
pillage has been wiped away. Takecare not to get fuel
s
or oil on your clothing. If this happens, change your
lothing immediately. Some 200 Series Hole Diggers
c
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
Specifications 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
Specifications 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
Departmentforspecificoperationaland
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. Guard 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 operatorʼ s
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 operatorʼs body. This is not an
approved configuration because it can result in injury
rom the hot muffler and/or breathing Carbon Monoxide
f
fumes during operation. If you have any questions
egarding proper starting procedures, contact the
r
Customer Service DepartmentBEFORE 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.
Alwaysmakesuretheoperatorhandleand
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 mufflercan 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
forspecific information regardingsuitable job
applications, job sites, soil conditions and operator
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 8
experience/skill/common sense recommendations for
this Hole Digger BEFORE utilization. There is no
charge for this service.
MAINTENANCE REPAIR 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
damagedenginethrottlecontrol/throttlecable
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. FIGURE 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.
FIGURE 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 DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 9
Assembly
Before Starting the Engine
Open the shipping carton immediately upon receipt.
Visually inspect the contents of the carton for freight
amage and/or missing parts. If shipping damage is
d
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.
FILLING THE ENGINE GASOLINE TANK.
ools Required:
T
1 each, small, clean funnel.
The 240 Hole Digger utilizes an all-position, Four
Stroke, gasoline engine. While this engine may
havethesamephysicalappearanceofa
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 GASOLINE
CONTAININGMETHANOL (WOOD ALCOHOL).
Gasoline containing a maximum of 10 per cent ethanol
or grain alcohol (sometimes referred to as Gasohol)
may be used but requires special care when the engine
is stored for extended periods.
3) Use of a properly blended gasoline for operation
DETERMINE THAT ALL COMPONENTS OF THE
ENGINE THROTTLE CONTROLASSEMBLYALLOW
FOR PROPER FUNCTION. THE THROTTLE LEVER
OF THE CARBURETORMUSTRETURNTHE
ENGINE TO THE IDLE SPEED AS STATED IN THE
SPECIFICATION SECTION OF THIS MANUAL
WHEN THE TWIST GRIP THROTTLE IS RELEASED
BY THE OPERATOR. IF THIS DOES NOT OCCUR,
CONTACT YOUR DEALER OR THE CUSTOMER
SERVICEDEPARTMENTFORSPECIFIC
INFORMATION RELATIVE TO CORRECTING THIS
OCCURANCE. DO NOT OPERATE THE HOLE
DIGGER UNTIL THIS OCCURANCE HAS BEEN
CORRECTED. AN IMPROPERLY FUNCTIONING
THROTTLE CONTROL CAN RESULT IN PROPERTY
DAMAGE AND/OR PERSONAL INJURY.
Check all fasteners for security. Consult a fastener
torque chart for the proper torque value if any fastener
is found to require retorquing.
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 10
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 GASOLINE TANK. DO
NOT FILL THE GASOLINE TANK WITH THE
ENGINE RUNNING OR IF IT IS HOT.ALLOWAMPLE
TIME BETWEEN EACH REFUELING FOR THE
ENGINE TO COOL.
FILLING THE ENGINE CRANKCASE WITH OIL.
Tools Required:
1 each, small, clean funnel with a flexible extension
pout.
s
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.
CALIFORNIA PROPOSITION 65 DISCLAIMER.
THE ENGINE EXHA U ST AND D USTS / BY-
RODUCTS FROM THE OPERATIONAL PROCESS
P
OF THIS PRODUCT CONTAINS CHEMICALS
KNOWN TO THE STATE OF CALIFORNIA TO
CAUSE CANCER, BIRTH DEFECTS, OR OTHER
REPRODUCTIVE HARM.
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. Improper 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.
SPARK ARRESTOR DISCLAIMER.
DO NOT OPERATE THE HOLE DIGGER ON ANY
FORESTCOVERED, BRUSHCOVERED OR
GRASS COVERED, UNIMPROVED LAND UNLESS
A N A P P R O V E D S PA R K A R R E S TO R I S
INSTALLED ON THE MUFFLER. THE SPARK
ARRESTOR MUST BE MAINTAINED IN PROPER
WORKING ORDER BY THE OWNER AND/OR
OPERATOR. IN THE STATE OF CALIFORNIA, THE
ABOVE IS REQUIRED BY LAW. OTHER STATES
MAY HAVE SIMILAR LAWS. FEDERAL LAWS WILL
APPLY ON FEDERAL LANDS.
INFORMATIONRELATIVETOMINIMUM
COMPONENT STANDARDS FOR THE OPERATION
OF THE HOLE DIGGER.
Foroperational safety and overall productivity
considerations, it is required that specific Hole Digger
components meet minimum acceptable operational
standards BEFORE utilization:
Digging Operation
OPERATIONAL DISCLAIMER.
THE MANUFACTURER OF THIS HOLE DIGGER
MAKES NO WARRANTY OR GUARANTEE THAT IT
IS MERCHANTABLE AND/OR SUITABLE FOR ANY
SPECIFIC JOB APPLICATION AND THAT IT WILL
HAVE THE POW ER R EQU IRED TO DIG A
SPECIFIC DIAMETER HOLE DOWN TO A SPECIFIC
DEPTH IN A SPECIFIC SOIL CLASSIFICATION.
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 11
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.
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
his manual. A worn or damaged throttle control hand
t
grip or any other, internal part must be replaced with a
actory approved replacement part only. Do not
f
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
repairasnecessaryaccordingtoaregular
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
centrifugalclutchassemblywithoperational
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.
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
ecured in/on vehicles with suitable strapping or tie
s
downs. Personnel should not be transported in the
ame compartment as equipment and fuel supplies.
s
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.
DETERMINATION OF POTENTIAL SUBSURFACE
HAZ AR D S IN THE PR O PO SE D D I GG I NG
LOCATION(S).
BEFORE ATTEMPTING TO DIG WITH THE HOLE
DI GG E R , D E T E R MI N E T HE P OT E N T IA L
SUBSURFACE HAZARDS WHICH MAY EXIST IN
THE PROPOSED DIGGING LOCATIONS(S.
POTENTIAL SUBSURFACE HAZARDS MAY
INCLUDE, BUT NOTBE LIMITED TO, THE
FOLLOWING:
1) ROCKS OF ANY SPECIFIC SIZE.
2)DIFFERENCESAND/ORVARIANCESIN
SPECIFIC SOIL CLASSIFICATIONS.
3) ROOTS OF ANY SPECIFIC SIZE.
4) BURIED MATERIALS SUCH AS GARBAGE AND
OTHER DEBRIS.
5)BURIEDPRESSURIZEDPIPELINES
CONTAINING SUCH MATERIALS AS NATURAL
GAS, PROPANE, ETC.
6) BURIED ELECTRICAL CABLES.
OPERATION OF A HOLE DIGGER UTILIZING
COM PO N EN TS NO T M E ET ING MI NI M UM
OPERATIONAL STANDARDS CAN RESULT IN
PROPERTY DAMAGE AND/OR PERSONAL IN
JURY.
GENERAL TRANSPORTATION INFORMATION.
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
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 12
BEFORE ATTEMPTING TO DIG WITH THE HOLE
DIGGER IN THE PROPOSED LOCATION(S),
CONTACT ALL APPROPRIATE AGENCIES TO
DETERMINE THE EXACT LOCATION9S) OF ALL
BURIEDPIPELINES,POWERLINESAND
MATERIAL DEBRIS. MANY UTILITIES AND OTHER
AGENCIES WILL PERFORM THIS TASK FOR A
MINIMAL COST OR AT NO COST. HAVE ALL
SUBSURFACE HAZARDS MARKED FOR EASY
RECOGNITION. DIRECT CONTACT WITH THESE
AND OTHER SUBSURFACE HAZARDS CAN
RESULT IN PROPERTY DAMAGE AND/OR
ERSONAL IN JURY.
P
ET UP FOR DIGGING.
S
CONTACT WITH THE HOT SURFACE OF THE
ENGINEMUFFLER/SHIELD ANDRESULT IN
PROPERTY DAMAGE AND/OR PERSONAL INJURY.
T WILL ALSO ALLOW THE OPERATOR TO
I
INHALE HIGH LEVELS OF CARBON MONOXIDE
HAT CAN RESULT IN PERSONAL INJURY.
T
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. Improper connecting devices can cause
property damage and/or personal injury.
DO NOT CONNECT THE AUGER TO THE HOLE
DIGGER WITH THE ENGINE RUNNING. A SUDDEN
CHANGE IN THE ENGINE SPEED WILL RESULT IN
HOLE DIGGER DAMAGE AND/OR PERSONAL
INJURY.
STARTING THE ENGINE WITH THE AUGER
CONNECTED TO THE AUGER DRIVESHAFT.
1) Grass 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. FIGURE 2.
THE 240 HOLE DIGGER IS DESIGNED FOR ONE
MAN OPERATION. USE BY MORE THAN ONE
OPERATOR WILL LEAD TO CONFUSION AND
LOSSOF CONTROL,RESULTING INHOLE
DIGGER DAMAGE AND/OR PERSONAL INJURY.
THE CONTROLS ARE DESIGNED FOR THE
OPERATOR TO CHOKE AND START THE ENGINE
WITH HIS LEFT HAND WHILE OPERATING THE
THROTTLE CONTROL WITH HIS RIGHT HAND.
WITH THIS INTENDED OPERATING POSITION, THE
ENGINEEXHAUSTMUFFLERWILLFACE
OPPOSITE THAT OF THE OPERATOR. THE
RESULTINGFUMESANDHEATWILLBE
DIRECTED AWAY FROM THE OPERATOR. DO NOT
OPERATE THE HOLE DIGGER WITH THE ENGINE
EXHAUST MUFFLER/SHIELD FACING TOWARD
THE OPERATOR. THIS OPERATION POSITION
WILL ALLOW THE OPERATOR TO COME IN
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 13
FIGURE 2
3) Turn the engine ON/OFF ignition switch to the ON
position. The switch is located near the underside of
the engine carburetor. FIGURE 3.
FIGURE 3
FIGURE 5
4) Depress the engine primer system bulb 7 to 10
times to help feed fuel directly into the carburetor.
FIGURE 4.
FIGURE 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. FIGURE 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
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
propercentrifugalclutchoperation,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.
IftheHoleDiggerand/oranindividual
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. If there are any questions
regarding the proper operation of the Hole Digger,
contact the dealer or the Customer Service
DepartmentforassistanceBEFOREfurther
utilization. There is no charge for this service.
OPERATING THE HOLE DIGGER.
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.
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 14
2)Rotatethetwistgripthrottlecontrol
counterclockwise to increase the engine speed. The
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
ig with the engine operating at full speed. This will
d
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
assemblybecomesfullydisengagedwithno
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.
STRIKING BURIED OBSTRUCTIONS SUCH AS
TREE ROOTS, ROCKS AND OTHER DEBRIS AT
ANY SPECIFIC ENGINE OPERATING SPEED CAN
CAUSETHEHOLEDIGGERTOTRANSMIT
REACTIONARY TYPE "IMPACT" LOADS TO THE
OPERATOR. THESE TYPES OF LOADS ARE
HARACTERIZED BY A SHARP, PULSATING
C
MOVEMENTOFTHEHOLEDIGGERINA
OUNTERCLOCKWISE DIRECTION (AS VIEWED
C
BY THE OPERATOR). SUCH LOADS CAN LEAD TO
THE LOSS OF OPERATOR CONTROL AND RESULT
INPERSONAL INJURY.THEOPERATIONAL
EFFECTS ARE ALIKE TO THAT OF UTILIZING A
COMMONELECTRICDRILLANDOTHER,
ROTATION TYPE, POWERED EQUIPMENT. THE
RELATED PHENOMENON IS INHERENT WITH ALL
SUCH TYPES OF ROTATION TYPE, POWERED
EQUIPMENT AND IS TERMED AS KICKBACK.
UNDERSTANDING KICKBACK.
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"towardhim.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.
MINIMIZING KICKBACK FROM AN OPERATIONAL
STANDPOINT.
The operator should keep the left side of the handle as
close to his body (left hip and leg areas) as possible to
minimizemachine"kickback"whenaburied
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 DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 15
of kickback upon the operator. FIGURE 6 depicts a
proper operator position. FIGURE 7 depicts an
improper operator position.
FIGURE 6
Always make sure the operator handle and throttle
control handle grip areas are in good condition and
ree of moisture, pitch, oil or grease. Wear gloves
f
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. It 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.
Failuretoproperlyaccommodatethis
phenomenon can result in property damage and/or
personal injury.
FIGURE 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 DIGGER, REDUCE OPERATOR FATIGUE,
AND INCREASE OVERALL PRODUCTIVITY.
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 16
IF, DURING THE HOLE DIGGING PROCESS THE
OPERATOR LOOSES FULL CONTROL OF THE
HOLEDIGGERFORANYREASONTHE
FOLLOWING PROCEDURE IS SUGGESTED:
AS A GENERAL RULE, AS SOON AS THE
OPERATOR REALIZES THAT HE IS IN THE
PROCESS OF LOOSING FULL CONTROL OF THE
HOLE DIGGER, HE SHOULD "PUSH" HIMSELF
FREEAND CLEAR FROMTHEOPERATOR
HANDLE. THE PROCEDURE REQUIRES THE
OPERATOR TO FULLY COMPREHEND THAT HE IS
LOOSING CONTROL OF THE HOLE DIGGER AND
TO REACT ACCORDINGLY WITH APPROPRIATE
BODY MOVEMENT. IMPROPER REACTIONS TO
THIS PHENOMENON CAN RESULT IN PROPERTY
DAMAGE AND/OR PERSONAL INJURY.
AHOLEDIGGERWITHANIMPROPERLY
MAINTAINED ENGINE THROTTLE CONTROL WILL
"SPIN" ABOUT ITS AXIS WHEN THE OPERATOR
OOSES PARTIAL AND/OR FULL CONTROL. IN
L
THE EVENT OF THIS OCCURRENCE, DO NOT
TTEMPT TO STOP THE ENGINE BY GRASPING
A
THE ROTATING OPERATOR HANDLE. DO NOT
INTRODUCE ANY FOREIGN OBJECT IN AN
ATTEMPTTOSTOPAND/ORBLOCKTHE
ROTATING HANDLE. INSTEAD, ALLOW THE
ENGINETOEXHAUSTITSFUELSUPPLY.
DETERMINE THAT ALL COMPONENTS OF THE
ENGINE THROTTLE CONTROLASSEMBLYALLOW
FOR PROPER FUNCTION BEFORE ATTEMPTING
TO FURTHER UTILIZE THE HOLE DIGGER.
MINIMIZINGKICKBACKFROMADESIGN
STANDPOINT.
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
otherconfigurations(fortheoperatorhandle
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 General
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
arge) number of auger pins to complete the digging
l
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) Given 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) Given 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) Given the infinite number of combinations of soil
conditions, auger diameters, auger boring head
conditions, digging depths, mechanical operating
conditions,operatorsandoperatormethods
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 DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 17
and/or substituted for the operational characteristics of
the Hole Digger.
PERATING THE HOLE DIGGER CONTINUED.
O
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. In 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
controloftheHoleDiggerwhileinthis
configuration. STOP the Hole Digger and remove it
from the buried auger. The buried auger can then
be retrieved by various,industry accepted
methods.ContacttheCustomerService
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
oticeable in areas of semiconsolidated soils or
n
compacted soils having high Proctor Densities.
xamples of such soil types include: soft shale, hard
E
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.
IT IS A MISCONCEPTION THAT A LARGER
DIAMETER HOLE CAN BE OBTAINED BY FIRST
DIGGING AN INITIAL HOLE WITH A SMALLER
"PILOT" AUGER AND THEN UTILIZING A LARGER
DIAMETER AUGER TO "REAM" THE HOLE TO THE
DESIRED SIZE. THIS METHOD WILL NOT ALLOW
THEAUGERSCREWBITTOPRODUCE
SUFFICIENT DIRECTIONAL STABILITY FOR THE
LARGERDIAMETERAUGERDURINGTHE
"REAMING" PROCESS. THIS METHOD WILL
RESULT IN PROPERTY DAMAGE, LOSS OF
OPERATORCONTROLAND/ORPERSONAL
INJURY.
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
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 18
buried object with a shovel or other suitable tool and
proceed to dig the hole with the Hole Digger to the
desired depth.
Some job applications may encounter buried
obstructions on the job site that are too large in
size to allow the usage of a machine such as
and/or with the operating limitations of the Hole
Digger. Utilization of the Hole Digger on these job
sites can cause property damage and/or personal
injury. Exercise proper common sense by selecting
the proper size and/or type of equipment for the
intended job application.
8) Tominimize the amount of loose soil that remains at
the bottom of the hole, stop the rotation before
retracting the auger. In most soil conditions, the auger
will retract with less effort if allowed to rotate at a slow
speed. This procedure, however, will leave more loose
soil at the bottom of the hole. Proper procedures for
obtaining the cleanest, most usable hole for any soil
conditionrequirestheaccumulationof actual
experience and common sense.
auger in a partially or completely dug hole on a
regular basis while in the field. The manufacturer
also realizes that this procedure must be utilized
hen the nonflighted auger extension is utilized to
w
extend the digging depth. The manufacturer has no
ontrol over the experience, skill and common
c
sense levels of each operator of the Hole Digger.
The manufacturer has no control over each job site
or specific job application for the Hole Digger.
Individual operator experience, skill, common
sense, job site location and specific job application
must affect the final decision on specific operating
procedures for the Hole Digger. Each operator
must decide if he possesses adequate/proper
experience, skill and common sense for operating
the Hole Digger for any given and/or specific job
application.
11) Both the auger blade and screw bit must be
replaced when signs of excessive wear are visible. A
regularlyscheduledmaintenanceprogramwill
increase the service life of the auger and increase
overall productivity by substantially reducing operator
fatigue. An auger requiring replacement of the blade
and screw bit is depicted in FIGURE 8.
9) The twist grip throttle controls the digging process by
regulating the engine speed. Keep a firm grip on it at all
times. As with any safety device, it requires constant
and proper maintenance to function as intended.
10) Attempting to restart the Hole Digger's engine with
the auger in a partially or completely dug hole requires
extra caution. In this configuration, the throttle control
can be advanced beyond the idle speed position
before the operator can exercise proper control of the
Hole Digger. The more accepted procedure (when not
utilizing the nonflighted auger extension) is to first
remove the unit from the hole and restart the engine
according to the described method. Return the unit to
the hole with the engine running at idle speed (the
auger should not be rotating) and proceed to dig the
hole to the desired depth.
Restarting the engine with the auger in a partially
or completely dug hole requires a higher degree of
operator experience, skill and common sense over
that of an introductory or novice level of expertise.
The manufacturer is aware that many operators
elect to restart the Hole Digger's engine with the
Do not utilize an auger with the blade and screw bit
worn past their specific service limits. Excessive
wear to the blade and screw bit will allow the auger
flighting to wear in a tapered or inverted cone
configuration. The work boring head may actually
be only capable of digging a hole 60 to 75 percent
of the nominal diameter of the auger. This
configuration will allow the auger flighting to
“bind” within the hole and substantially reduce
operator control and productivity.
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 19
FIGURE 8
STOPPING THE HOLE DIGGER.
Stopping the Hole Digger is accomplished by rotating
he twist grip throttle control to its maximum, closed
t
position and allowing the engine to return to its idle
peed. Turn the engine ON/OFF ignition switch to the
s
OFF position. With the throttle control functioning
properly, the engine can be brought to idle speed and
the auger rotation stopped when the throttle control
lever is fully closed or suddenly released. If this is not
occurring, check the throttle control, throttle cable,
carburetor lever, and engine idle speed for binding
and/or improper adjustment.
TEMPORARY STORAGE FOR THE HOLE DIGGER
WHILE ON THE JOB SITE.
12) Avoid placing serious stress to the back and lower
body members. Always lift in a straight line with your
legs. Maintain the back in a vertical position as much
as allowed by the digging process. Proper wrist
position during the digging process can minimize
and/or reduce stress and strain related damage
potential to this body area. Operator control can be
enhanced and fatigue reduced by attempting to keep
wrists as perpendicular to the operator handle as
feasible during the digging process. FIGURE 9.
The Hole Digger can be temporarily stored on the job
site by one of three acceptable methods. The chosen
method is to be determined by the operator based
upon personal preference and/or job site conditions:
a) Digging a shallow hole and leaving the Hole Digger
connected to the auger.
b) Disconnecting the Hole Digger from the auger
and/or auger extension and storing it in a level
configuration. FIGURE 10.
FIGURE 9
13) Stop the engine between each hole to minimize the
possibility of personal injury. Special care must be
exercised in slippery conditions and in difficult,
overgrown terrain. Store the Hole Digger on the job site
by digging a shallow hole or by disconnecting it from
the auger and/or nonflighted auger extension. Close
the gasoline tank breather vent (if so equipped) when
the Hole Digger is not in use.
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 20
FIGURE 10
c) Storing the Hole Digger while connected only to a
lead auger with the engine spark plug facing upward.
This configuration minimizes the potential for the hot
muffler and/or muffler heat shied area igniting grass or
other combustible materials. FIGURE 11.
FIGURE 11
auger. Place the auger in the hole. Attach the auger
extension to the auger and secure with an auger pin.
The Hole Digger can now be connected to the auger
xtension and secured with an auger pin. Reconnect
e
the spark plug wire.
4) Follow the instructions outlined for starting and
operating the Hole Digger. Use extra caution when
starting the Hole Digger's engine with the auger in the
hole. Proceed to dig to the desired depth or to the full
depth of the auger extension.
ADDING AND REMOVING THE NONFLIGHTED
AUGER EXTENSION.
Many digging jobs require a hole deeper than that
provided by standard length augers. For many such
requirements, a nonflighted auger extension is
available. The nonflighted auger extension extends the
digging depth by an additional 15 inches (381 mm).
Utilization of the nonflighted auger extension
requires additional operator experience, skill and
common sense over that of an introductory or
novice level of expertise. The manufacturer has no
control over the experience, skill and common
sense levels of each operator of the Hole Digger.
Utilization of the nonflighted auger extension
requires the accumulation of actual hole digging
experience, skill and common sense. Each
operator must decide if his experience, skill and
common sense level is sufficient to allow him to
proceed with the utilization of the nonflighted
auger extension for any given and/or specific job
application.
Follow this accepted procedure for utilizing the
nonflighted auger extension to extend the digging
depth:
NEVER UTILIZE MORE THAN ONE NONFLIGHTED
AUGER EXTENSION TO INCREASE THE DIGGING
DEPTH OF THE AUGER. THIS EXTENSION IS NOT
EQUIPPED WITH AUGER FLIGHTING TO ELEVATE
THELOOSEBORINGSFROMTHEHOLE.
CONSEQUENTLY,MULTIPLEUSEOF
NONFLIGHTEDAUGEREXTENSIONSWILL
ALLOW THE AUGER TO "BURY" ITSELF IN THE
HOLE. SUCH USE CAN LEAD TO THE LOSS OF
OPERATORCONTROLAND/ORPERSONAL
INJURY.
After the desired digging depth has been achieved, the
nonflighted auger extension is removed by utilizing this
accepted procedure:
1) Remove as much loose soil from the hole as
possible with the auger rotating at an intermediate
speed. STOP the engine and disconnect the spark
plug wire to prevent accidental engine starting. Close
the gasoline tank breather vent (if so equipped).
2) Lift the auger extension and the Hole Digger up far
enough out of the hole so that the auger extension is
clear. Block the remaining auger with an auger fork to
prevent it from falling back into the hole. Disconnect
the Hole Digger from the auger extension. Remove the
auger extension and auger from the hole. FIGURE 12.
1) Dig to the approximate full depth of the auger
utilizing the described operating instructions. Remove
as much loose soil from the hole as possible utilizing
the described operating instructions.
2) STOP the engine and remove the auger from the
hole. Disconnect the spark plug wire to prevent
accidental engine starting. Close the gasoline tank
breather vent (if so equipped).
3) Disconnect and remove the Hole Digger from the
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 21
FIGURE 12
3) Reconnect the engine spark plug wire.
THE PROCEDURE OUTLINED FOR THE USE OF
THE NONFLIGHTED AUGER EXTENSION OFFERS
THE MOST ADAPTABLE METHOD OF EXTENDING
THE DIGGING DEPTH FOR THE WIDEST CROSS
SECTION OF PROBABLE OPERATORS. THIS
PROCEDURETAKESINTOACCOUNT
ANTICIPATED OPERATOR EXPERIENCE, SKILL
AND COMMON SENSE. THE MANUFACTURER IS
AWARE THAT NOT ALL OPERATORS WILL ELECT
TOFOLLOWTHISPROCEDURE.THE
MANUFACTURER HAS NO CONTROL OVER
INDIVIDUAL OPERATION PROCEDURES AND/OR
DECISIONS. MANY OPERATORS MAY ELECT TO
UTILIZE THE NONFLIGHTED AUGER EXTENSION
CONNECTED DIRECTLY TO THE AUGER AND
BYPASS THE LONGER, MORE TIME CONSUMING
PROCEDURE OUTLINED ABOVE. INDIVIDUAL
OPERATORS MAY ELECT TO CHOOSE OTHER
PROCEDURES IN AN EFFORT TO REDUCE THE
ASSOCIATEDPRODUCTIONCOSTS.THE
RESULTING MACHINE CONFIGURATIONS CAN
PLACE THE HANDLE ALMOST LEVEL WITH (OR
EVENABOVE)THESHOULDERSOFTHE
OPERATOR. AT THIS HEIGHT LEVEL, THE HOLE
DIGGER IS DIFFICULT TO CONTROL AGAINST
POSSIBLE KICKBACK FORCES. THIS IS NOT A
MANUFACTURERAPPROVEDPROCEDURE
BECAUSEITREQUIRESEACHPOTENTIAL
OPERATOR TO HAVE EXCEPTIONAL HEIGHT AND
EXPERTWORKEXPERIENCE,SKILLAND
COMMON SENSE. UNFORTUNATELY, THERE IS
STILL NO REAL ASSURANCE THAT EACH AND
VERY OPERATOR WITH EXCEPTIONAL HEIGHT
E
AND EXPERIENCE, SKILL AND COMMON SENSE
AN ALWAYS EXERCISE ADEQUATE CONTROL
C
OFTHEHOLEDIGGERTOGUARANTEE
PERSONAL SAFETY. PERSONAL SAFETY CAN
NEVER BE GUARANTEED FOR ANY GIVEN
AND/OR SPECIFIC JOB APPLICATION FOR ANY
TYPE OF POWERED EQUIPMENT. THE ACCEPTED
PROCEDURE, AS OUTLINED IN THIS OPERATOR'S
MANUAL, IS STRONGLY RECOMMENDED. THE
MANUFACTURER CAN NOT CONDONE AND/OR
APPROVE ANY OTHER PROCEDURE.
Service
CHANGING THE HOLE DIGGER TRANSMISSION
LUBRICANT.
Tools Required:
1 each, 7/16 inch wrench
1 each, #2 Phillips head screwdriver
1 each, torque wrench, 120 inch pounds (13.5 N.m.)
(224g) of high temperature transmission
or marine-grade, wheel bearing grease
classified for extreme pressure (EP)
applications. Fisk Brothers (Lubriplate brand)
GR132 is an approved lubricant.
The 240 Hole Digger utilizes a fully enclosed, double
reduction transmission for multiplying and transmitting
engine torque to the auger. The principle involves
engine horsepower and torque being transmitted
through a centrifugal clutch and two sets of gear
reductions into a final driveshaft. Grease is provided for
lubrication and heat dissipation for the bearings, gears
and clutch assembly.
A pressure relief valve, PN 5677, is located on the top
surface of the transmission cover to relieve any excess
pressure created in the transmission due to heat rise.
Should this valve become plugged, the following
problems can occur:
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 22
a) Lubrication grease can be forced out between the
ings and the final driveshaft.
) The gasket that separates the two halves of the
b
transmission can push out, causing a loss of lubrication
rease.
g
The potential for these problems can be minimized by
cleaning the pressure relief valve at regular intervals
with an approved safety solvent. The transmission is
shipped from the factory filled with approximately 8
ounces (224g) of high temperature lubricant. This
lubricant contains an extreme pressure additive which
is designed to cling to the gear teeth at high rotational
speeds.
FIGURE 13
1) Change the transmission lubricant every 50 hours of
operation, or more often as necessary, if the Hole
Digger is operated in extremely dusty or dirty
conditions.
2) Drain the gasoline from the fuel tank into a UL®
approved container. Wipe any excess spilled gasoline
and dispose of properly.
3) Position the Hole Digger on a suitable work bench
with the operator handle level with the ground. As an
alternative, the transmission driveshaft can be securely
mounted in a suitable bench vice. Wipe any dust or dirt
from the area where the transmission separates.
GASOLINE IS AN EXTREMELYFLAMMABLE FUEL.
USE EXTREME CAUTIONWHEN HANDLING
GASOLINE. DO NOT SMOKE OR BRING FIRE OR
FLAME NEAR THE FUEL.
4) Loosen and remove the six capscrews that fasten
the transmission together. Using the rubber hammer,
split and separate the transmission cover and case.
Exercise caution not to damage the dowel pins. If the
bearing journals of the secondary pinion, PN 2100310, are difficult to remove from the ball bearings,
remove the PN 37040200 Screw from both bearing
housings. Insert a 1/4-20 UNC capscrew into the
housing. Using the wrench, rotate the capscrew to
thrust against the pinion bearing journal until it clears
the pinion gear support bearing. Repeat the process
with the remaining pinion gear bearing journal if
necessary. FIGURE 13. Remove the PN 210-0100
gasket.Remove the primary gear and pinion
assembly, PN 210-0340 and PN 210-0310.
5) Clean the interior surfaces of the transmission cover
and case with an approved safety solvent.
6) Clean each gear with an approved safety solvent.
Inspect the teeth for excess wear, cracks or fatigue.
Replace each component as necessary.
Observe all applicable safety precautions for the
solvent. Dispose of theusedtransmission
lubricant according to all applicable laws and
regulations.
6) If necessary, reinstall PN 37040200 Screw into the
bearing housings.Properly secure with the provided
hardware.
7) Fill the transmission cover and case with 8 ounces
(224g) of high temperature transmission grease
containing an extreme pressure additive. Part Number
210-0720 lubrication grease or Fisk Brothers GR-132
is an approved lubricant. FIGURE 14. If the Fisk
Brothers lubricant can not be readily sourced, an
acceptable alternative is a marine-grade wheel bearing
grease that contains an EP (denoting extreme
pressure) additive. Distribute the grease equally
around all gear teeth. Do not utilize standard lithium
based greases intended for common lubrication
purposes. These types of grease are not formulated to
operateatthehigheroperatingtemperatures
encountered during the hole digging process. Such
greases also do not contain an extreme pressure
additive for use with gears.
240 ONE MAN HOLE DIGGER, FORM GOM26010601 VERSION 2.0, AUTHORIZATION: DVR, PAGE: 23
FIGURE 14
Keep this information stored with the Operator Manual
for the Hole Digger so it will always be available for use
when the engine requires service or maintenance. A
roperly maintained engine will add considerably to the
p
service life and overall productivity of the Hole Digger.
Troubleshooting
ENGINE.
ENGINE FAILS TO START
Ignition switch in OFF position. Place in ON position.
Incorrect carburetor adjustment. See Service section.
7) Reinstall the primary gear and pinion assembly.
Distribute the grease equally around all gear teeth.
Replace the old transmission gasket with a new
gasket, PN 210-0100. Align the transmission dowel
pins when reinstalling the cover. Reinstall the fasteners
with the hexagon nuts on the cover side of the
transmission. Torque all fasteners to 96 in lbs (12 N.m.)
in an “X" sequence.
8) Rotate the final driveshaft and check for excessive
noise and/or binding. If excessive noise and/or binding
isevident,disassemblethetransmissionand
investigate for probable causes. Reassemble and
retorque to the specified amount. Recheck for
excessive noise and/or binding.
9) Inspect the Hole Digger for loose, worn or damaged
parts. Replace any questionable part or assembly with
a genuine, approved replacement part. Do not attempt
any maintenance or repair work not described in the
Operator's Manual. Have such work performed at your
dealer's servicing shop.
ENGINE SERVICE
Ignition wire to spark plug loose or disconnected.
Reconnect.
Fuel supply exhausted. Refill fuel tank.
ENGINE LOOSES POWER
Incorrect carburetor adjustment. See Service section.
Water in fuel supply. Drain and replace fuel.
Plugged engine exhaust ports. See Service section.
Dirty spark plug. See Service section.
Incorrect throttle control/cable adjustment. See
Assembly section.
Gasoline tank breather vent closed (if so equipped).
Open vent.
Dirty air filter. See Service section.
ENGINE OVERHEATS
Consult Instructions for Use Manual provided by the
enginemanufacturerforspecificserviceand
maintenance information regarding:
1) muffler
2) spark plug
3) air filter
4) carburetor adjustment
5) maintenance schedule
6) engine oil change
7) troubleshooting
8) short and long term storage
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 24
Incorrect carburetor adjustment. See Service section.
Incorrect fuel/oil mixture ratio. See Before Starting
The Engine section.
Cooling fins clogged. Remove engine blower housing
and clean cooling fins.
OPERATIONAL PROBLEMS.
HOLE DIGGER LACKS POWER
Incorrect amount of transmission lubricant. See
Service section.
entrifugal clutch assembly worn. Replace
C
6) Store the Hole Digger inside. If the Hole Digger must
be stored outside, protect it and each auger with a
suitable covering.
uger diameter too large for given soil condition. See
A
Digging Operation section.
Incorrect throttle control/cable adjustment. See
Assembly section.
AUGER ROTATESAT IDLE SPEED
Incorrect throttle control/cable adjustment does not
permit proper engine idle speed. See Assembly
section.
Centrifugal clutch worn. Replace.
Incorrect engine idle speed. See Service section.
Storage
Proper procedure for long term storage of the Hole
Digger will protect it against the affects of corrosion
and damage. If the Hole Digger is not to be operated
for a period of 30 days or more, proceed to store as
follows:
1) Clean all accumulated dirt and grease from the Hole
Digger utilizing an approved safety solvent.
Specifications
ENGINE.
TYPESubaru Robin EH035V
HIGH SPEED9000 RPM (No Load)
IDLE SPEED2900 RPM
SPARK PLUG GAP.030 inch (.76 mm)
FUELUnleaded, automotive grade
GASOLINE TANK24 US ounces (0.75 liter)
CAPACITY
TRANSMISSION.
TYPEEnclosed, spur geared, double reduction.
REDUCTION RATIO42.5 to 1
LUBRICANT CAPACITY8 US ounces (224 g)
LUBRICANT SPECIFICATIONHigh temperature
transmission grease containing an extreme pressure
(EP) additive.
CLUTCH3 inch (76 mm) diameter, all-metal,
Observe all applicable safety precautions for the
solvent
2) Follow the procedure as outlined in the material
supplied by the engine manufacturer detailing long
term storage of the engine.
3) Check all visible parts for wear, breakage or
damage. Order any part required to make the
necessary repair. This will avoid a needless delay
when operating the Hole Digger at next use.
4) Apply a light coat of protective grease to the
transmission final driveshaft to prevent the formation of
rust.
5) Do not store the Hole Digger connected to an auger.
Always store the Hole Digger with the operator handle
level with the ground.
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 25
automatic cam type centrifugal.
AUGER CAPACITY: 2 inch (51 mm) diameter up to
and including 8 inch (203 mm) diameter. Refer to
DIGGING OPERATION for specific information.
GENERAL.
MODELM240
REQUIRED NUMBER OF OPERATORS1
LEAD AUGER SERIESGeneral® 2135
TYPE/NUMBER
AUGER EXTENSIONGeneral® 2135
TYPE/SERIES NUMBER
Left Blank
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 26
Replacement Parts Diagrams
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 27
Transmission Assembly
240 Hole Digger
[Serial Numbers 2550 Thru 28256]
240 ONE MAN HOLE DIGGER, FORM GOM26010601, VERSION 2.0, AUTHORIZATION: DVR, PAGE: 28