HLA BIG ARM BH600 User manual

OPERATOR’S MANUAL
BH600
Manual Number: BH600-08_1
Au
g
ust 2008

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TABLE OF CONTENTS
HLA Attachments
8082 Rd 129
RR# 3
Listowel ON N4W 3G8
Canada
1-866-567-4162
sales@ orstwelding.com
www. orstwelding.com
Introduction, General Information, Serial Number .……… ………… 2
Owner and Operator and Safety Information …………………….. 3-6
Definition of Safety Term and Symbol , Accident Prevention …….. 3
Safety In truction …………………………………………………. 4-5
Safety Sign ………………………………………………………….. 6
Power Unit Specification ………………………………….…………. 7
In tallation In truction …………………………………………………7
Hydraulic In truction ………………………………………………….. 7
Operation ………………………………………………………….….. 8-9
Maintenance ………………………………………………………….. 10
Service ……………………………………………………………..….. 10
Mounting Location …...…………………………………………..….. 11
Part Illu tration …………………………………………….…… 12-13
Grea e Zerk Location ………………………………………….…… 14
Selector Valve Diagram ……………………………………………… 14
Hydraulic Part Li t ……………………………………………….….. 15
Hydraulic Plumbing …………………………………………………... 16
Specification ……………………….…………………………….….. 17
Trouble hooting ………………………………….…………………… 18
Warranty
Policy
………………………………………
….
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..
19

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INTRODUCTION
Thank you for purcha ing your new HLA Big Arm! Your Big Arm wa carefully de igned and manufactured to give
you many year of dependable ervice. You or any other per on, who will be a embling, operating, maintaining or
working with thi product, are required to read and completely under tand the information and in truction
contained in thi manual. If anyone doe not fully under tand every part of thi manual, plea e obtain further
a i tance by contacting the dealer from which thi product wa purcha ed or by contacting HLA at the telephone
number or addre li ted on the previou page of thi manual. Keep thi manual available for reference whenever
thi product i being handled or u ed. Provide thi manual to any new owner and/or operator .
Thi manual cover model BH600.
GENERAL INFORMATION
The purpo e of thi manual i to a i t you in afely a embling, mounting, operating and maintaining your Big
Arm. Read thi manual carefully to obtain valuable information and in truction that will help you achieve afe and
dependable ervice. The illu tration and data u ed in thi manual were current at the time of printing, but due to
po ible engineering and/or production change , thi product may vary lightly in detail. HLA re erve the right to
rede ign and/or change component a nece ary without notification.
Throughout thi manual, reference may be made to:
Power Unit The engine-driven machine to which thi product mu t be attached.
Right, Left, Front,
Rear
Direction which are determined in relation to the operator of the equipment when eated in the
normal operating po ition.
IMPORTANT Precaution that mu t be followed to prevent damage to equipment.
NOTICE Precaution that mu t be followed to prevent ub tandard performance.
SERIAL NUMBER LOCATION
Alway refer to the model and erial number when ordering part or reque ting information from your dealer. The
erial number plate for thi product i located on the upper right rear portion of the loader attachment plate of your
Big Arm.

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The Safety Alert Symbol mean :
- ATTENTION! - BECOME ALERT! - YOUR SAFETY IS INVOLVED!
DANGER Indicate an imminently hazardou ituation, which, if not avoided,
WILL r sult in d ath or s rious injury.
WARNING Indicate a potentially hazardou ituation, which, if not avoided,
Could r sult in d ath or s rious injury.
CAUTION Indicate a potentially hazardou ituation, which, if not avoided,
May r sult in minor or mod rat injury;
OR
May al o be u ed to alert again t un afe practice , which may r sult in damag to prop rty.
DEFINITION OF SAFETY TERMS AND SYMBOLS
Throughout thi manual, the term DANGER, WARNING and CAUTION are u ed to indicate the degree of hazard to per onnel
if proper afety procedure are not followed. The e word will be u ed in conjunction with the Safety Alert Symbol: a dark
triangle containing a white exclamation mark.
The afety information given in thi manual doe not replace any afety code , in urance need , federal, tate and local law .
ACCIDENTS CAN BE PREVENTED WITH
YOUR HELP!
The be t afety device i a careful operator. HLA and your
dealer a k that YOU be that careful, re pon ible equipment
operator.
Pay attention to the job at hand. Do not let your mind lo e
concentration on what you are doing. No accident
prevention program can be ucce ful without the
wholehearted cooperation of the per on who i directly
re pon ible for the operation of the equipment.
If accident are to be prevented (and accidents can be
prevented), that prevention will come from equipment
operator who accept their complete re pon ibility and
anticipate the re ult of their action .
The de igner, the manufacturer, and the afety engineer all
help create a afe product, but their combined effort can
be wiped out with a ingle carele act by the operator of
that product.
Do not attempt to operate thi equipment under the
influence of drug or alcohol.
YOU ARE THE KEY TO SAFETY BECAUSE:
YOU are re pon ible for the SAFE operation and
maintenance of YOUR Backhoe.
YOU are re pon ible to familiarize your elf, and anyone
el e who will a emble, operate, maintain, or work around
thi product, with the afety information contained in thi
manual.
YOU are re pon ible to read ALL information contained in
thi manual to any operator or maintenance per onnel
who are not fully able to read the written Engli h language.
Whether YOU read the manual a written or tran late it into
another language, YOU mu t make certain that all
operator and maintenance per onnel have complete
under tanding of the full and exact content of thi manual.
YOU can reduce the ri k of injury or death by following all
afety precaution and by u ing good afety practice .

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SAFETY INSTRUCTIONS
WORK SAFELY – A CAREFUL OPERATOR IS THE BEST INSURANCE AGAINST ACCIDENTS!!
SECTION 1
WARNING SECTION
• READ AND COMPLETELY UNDERSTAND THIS
MANUAL.
• READ AND COMPLETELY UNDERSTAND THE
MANUALS PROVIDED WITH YOUR POWER UNIT,
LOADER AND QUICK-ATTACH.
• Read and under tand all afety ign on thi product
and on your power unit, loader and quick-attach.
• Know all your control and know how to quickly top all
power unit movement , the backhoe movement, and
the engine in ca e of emergency.
• Know and obey all applicable government rule ,
O.S.H.A regulation , local law and other profe ional
guideline for your operation.
• Make ure that anyone who will be a embling,
mounting, maintaining, repairing, removing and/or
toring thi product:
 ha been in tructed in the afe operation of thi
product and of the power unit and the quick-attach
to which thi product i attached.
 i phy ically and mentally capable of the afe
operation of thi type of equipment.
 i not under the influence of drug or alcohol.
 i carefully upervi ed from a afe di tance,
e pecially if uch per on i inexperienced.
 wear per onal protective equipment (i.e. hardhat,
afety gla e , work glove , protective hoe ,
re pirator, ear protection, etc.)
 doe not wear loo e fitting clothe , loo e or
uncovered hair or any acce orie (jewelry,
necktie, carf, wri t watch, etc.) that can catch and
entangle on moving part .
 ha annually reviewed all afety in truction .
• Know and follow good work practice when
a embling, mounting, maintaining, repairing,
removing and toring thi product:
 Work on a level urface in a well lit area.
 Keep the area clean and dry.
 U e properly grounded electrical outlet and tool .
 U e the right tool for the job at hand.
 Make ure that your tool are in good condition for
performing the de ired function.
 When u ing tool , wear the protective equipment
pecified by the tool manufacturer (i.e. hardhat,
afety gla e , work glove , protective hoe , etc.).
• Before leaving the operator’ tation or before
beginning any type of work on thi product, lower thi
product to the ground, apply your power unit’ parking
brake, top the engine, remove the tarter key, wait for
all moving part to top and then relieve all pre ure in
the hydraulic line . Refer to your power unit’
operator’ manual for in truction on how to relieve
hydraulic pre ure in line .
• Know your loader’ afe lifting and operating capacity
and the weight of thi product. See the pecification
in thi manual for the weight of thi product and refer
to your power unit’ and loader’ operator’ manual
for afe operating limit . Lift capacity may be reduced
if u ing a quick-attach.
• Never allow anyone, except the operator, to be around
the power unit or thi product when either i in motion.
• Do not tart up unle other are clear of the work
area.
• Do not allow rider on thi product or the power unit.
• Do not tand or climb on thi product when rai ed.
• Do not place any part of your body under any part of
thi product unle thi product i ecurely re ting on
adequate blocking or on the ground.
• Do not u e blocking made of concrete block , log ,
bucket , barrel or any other material that could
uddenly collap e or hift po ition . Do not u e wood
or teel blocking that how any ign of material
decay. Do not u e wood blocking that i warped,
twi ted or tapered.
• Never operate control from the ground. Operate the
control only from the operator’ tation.
• Never leave the equipment unattended with the engine
running or with thi product rai ed on the loader.
• Be aware of the added weight and width of thi
product. Reduce travel peed accordingly, e pecially
when traveling over rough ground.
• Keep thi product clo e to the ground and under
control when tran porting.
• When tran porting, be ure backhoe doe not block
view of vehicle light or road.
BEFORE ATTEMPTING ANY TYPE OF ASSEMBLY,
OPERATION, MAINTENANCE OR OTHER WORK ON
OR NEAR THIS PRODUCT.
WHEN YOUR POWER UNIT IS USED DURING ANY
TYPE OF ASSEMBLY, OPERATION, MAINTENANCE
OR OTHER WORK ON OR NEAR THIS PRODUCT:
WARNING
Ob y all saf ty instructions list d in this
s ction and throughout this manual.
Failur to ob y instructions in this s ction
could r sult in d ath or s rious injury.

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SAFETY INSTRUCTIONS
WORK SAFELY – A CAREFUL OPERATOR IS THE BEST INSURANCE AGAINST ACCIDENTS!!
WARNING SECTION [Continued]
• Hydraulic fluid under pre ure can penetrate the kin
and cau e eriou injury or death. Hydraulic leak
under pre ure may not be vi ible!
• If any fluid penetrate the kin, GET IMMEDIATE
MEDICAL ATTENTION!!
• Wear afety gla e , protective clothing and u e a
ound piece of cardboard or wood when earching for
hydraulic leak . DO NOT USE YOUR HANDS!
• Before connecting or di connecting hydraulic ho e ,
read your tractor or power unit’ operator’ manual for
detailed in truction on connecting and di connecting
hydraulic attachment .
• Make certain that all part meet the pecification for
thi product when in talling or replacing hydraulic
ho e or fitting .
• After connecting hydraulic line :
 Slowly and carefully rai e the loader and cycle the
rollback / dump cylinder to check ho e
clearance and to check for any interference.
 Operate the hydraulic on thi product to check
ho e clearance and to check for any
interference.
 Make certain that the ho e cannot interfere with
or actuate the quick-attach mechani m.
 Make certain that ho e will not be pinched, or get
tangled, in any equipment.
• Do not lock the auxiliary hydraulic of your power unit
in the “ON” po ition.
• Refer to your power unit’ operator’ manual and thi
manual for procedure and interval , then in pect and
maintain the entire hydraulic y tem to in ure that the
fluid remain clean, that all device function properly
and that there are no fluid leak .
• Refer to the operator’ manual of your power unit,
your loader and your quick-attach for pecial or
detailed mounting in truction .
• Thi product hould fit onto the quick-attach or loader
arm of your power unit the ame a the original
product that were de igned by your loader / quick-
attach manufacturer.
• If thi product doe not fit properly, contact HLA before
operating.
• Never place your finger into the mounting plate or 3-
point hitch or loader hole . A light movement of the
power unit or thi product could cau e eriou injury.
• Make certain that all afety ign are in place and
legible. Refer to the afety ign page in thi manual for
the placement of afety ign for thi product.
• Replace all damaged or exce ively worn part and
hardware only with genuine HLA part or with properly
rated fa tener , hydraulic ho e or fitting .
• Make certain that all locking pin , latche and
connection device are properly in talled and ecured.
• Make certain that all protective guard , canopie ,
door , etc. are in place and ecure.
• Contact utility companie before digging. Know your
digging area! Avoid hitting underground cable and
pipe , overhead wire and other hazard .
• Never u e backhoe on a power unit that i not
equipped with a cab or ROPS, and operator re traint
( eat belt or equivalent device ).
• U e your Big Arm only for digging. Do not u e it to pull
thing , a a battering ram or attach chain , rope , etc.
to it.
• Do not u e your Big Arm to di lodge overhead object .
Object could fall and cau e injury.
• Do not attach a jack hammer to the backhoe.
• Be careful when rai ing loaded bucket. Object could
fall from bucket toward by tander or operator.
• Know your loader’ afe operating weight limit and the
weight of your loader attachment.
• Never dig clo e to the loader’ wheel or under the
loader; thi can cau e a cave in and vehicle overturn.
• Do not drive near the trench. Alway back away from
the trench before turning.
• Alway dump loaded bucket on uphill ide of backhoe
to minimize po ibility of up et.
• U e caution when working clo e to fence and ditche ,
or on uneven ground.
• Make no modification to you backhoe.
• When making repair , u e only genuine HLA part or,
for fa tener , hydraulic ho e or hydraulic fitting , u e
only properly rated part .
• Replacement part , for part with afety ign
attached, mu t al o have afety ign attached.
BEFORE EACH USE, THOROUGHLY INSPECT THIS
PRODUCT AND:
WHEN OPERATING THIS PRODUCT IN
ACCORDANCE WITH DESIGN INTENTIONS:
WHEN MOUNTING THIS PRODUCT TO YOUR
POWER UNIT: WHEN ADJUSTING, SERVICING OR REPAIRING THIS
PRODUCT:
WARNING
Ob y all saf ty instructions list d in this
s ction and throughout this manual.
Failur to ob y instructions in this s ction
could r sult in d ath or s rious injury.
WHEN DEALING WITH HYDRAULICS DURING ANY
TYPE OF ASSEMBLY, OPERATION, MAINTENANCE
OR OTHER WORK ON OR NEAR THIS PRODUCT.

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SAFETY SIGN LOCATIONS
PLACEMENT OR REPLACEMENT OF SAFETY
SIGNS
1. Clean the area of application with non-flammable
solvent, then, wash the same area with soap and
water.
2. Allow the surface to fully dry.
3. Remove the backing from the safety sign, exposing the
adhesive surface.
4. Apply the safety sign to the position shown on the
diagram above and smooth out any bubbles.
Item A
Item B
ITEM QTY PART# DESCRIPTION
A 1 BHW01 Injury warning
B 1 BHW02 Backhoe
damage
C 1 BHW03 Hydraulic
D 1 BHW04 Pinch point
INSTRUCTIONS
•Keep all safety signs clean and legible.
•Replace all missing, illegible or damaged safety signs.
•Replacement parts for parts with safety signs attached
must also have safety signs attached.
•Safety signs are available free of charge from your
dealer or from Horst Welding.
Item C
Item D

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POWER UNIT SPECIFICATIONS
IMPORTANT Exceeding any of the recommended power unit pecification
• CAN re ult in damage to your power unit and/or thi product and
• WILL void all HLA warrantie .
BACKHOE INSTALLATION INSTRUCTIONS
1. Place thi product on a firm, level urface that i large enough to afely accommodate thi product, your power unit and all
worker involved in the mounting proce .
2. Be ure all connection point are properly ecured.
3. Refer to the operator’ manual( ) for your power unit, loader and quick-attach and follow the mounting in truction
contained therein.
4. Carefully rai e the loader arm and cycle the tilt cylinder to check clearance and to verify that all mounting procedure
have been ucce fully completed.
5. All power unit MUST have a port relief in talled on it hydraulic tilt circuit.
BACKHOE HYDRAULIC CONNECTION
1. Di connect the hydraulic ho e quick coupler from one another and attach the quick coupler to your power unit a per the
in truction in your power unit’ operator’ manual.
2. Carefully rai e the loader arm and cycle the tilt cylinder to check ho e clearance and to check any interference.
LOADER DESCRIPTION MAXIMUM BUCKET SIZE
LESS THAN 25 HORSEPOWER DO NOT USE MINI-HOE
25 – 35 HORSEPOWER 12” BUCKET
35 – 45 HORSEPOWER 18” BUCKET
45 OR GREATER HORSEPOWER 20” BUCKET
POWER UNIT’S TILT CURCUIT HAS NO PORT
RELIEF
INSTALL RELIEF VALVE FOR POWER UNIT’S
TILT CIRCUIT
SAFETY FIRST!! REA
D
AND UNDERSTAND THE SAFETY INSTRUCTIONS
(pages 3-6
of this manual) BEFORE BEGINNING ANY BACKHOE MOUNTING
SAFETY FIRST!! READ AND UNDERSTAND THE SAFETY INSTRUCTIONS
(pages 3-6
of this manual) BEFORE BEGINNING ANY BACKHOE HYDRAULIC CONNECTION
WARNING
Do not lock th auxiliary hydraulics of your tractor or pow r unit in th “ON” position.
Failur to ob y this warning could r sult in d ath or s rious injury.

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BACKHOE OPERATION
SAFETY FIRST!! READ AND UNDERSTAND THE SAFETY INSTRUCTION ( pages 3-6 of
this manual) BEFORE BEGINNING ANY BACKHOE OPERATION.
DANGER
Failur to ob y th following proc dur s will r sult in d ath or s rious injury.
• Avoid contacting ov rh ad wir s and und rground pip s or cabl s. Failur to h d may r sult
in l ctrocution or xplosion.
WARNING
Failur to ob y th following proc dur s could r sult in d ath or s rious injury.
N v r lift this product:
• abov th op rator’s y l v l OR
• to a h ight wh r visibility is obstruct d, which v r is low r.
Us caution wh n raising load d buck t. Obj cts could fall from buck t toward bystand rs or op rator.
NOTICE Refer to your power unit’ operator’ manual for afe op rating limit and u e of
count rw ights.
TO DIG:
1. Be ure the loader i on olid ground before digging or lifting load.
2. With the loader arm partially rai ed and the bucket cylinder partially extended, lowly curl the dipper tick toward the
loader (u ing the loader’ tilt control). The loader arm may need to be lowered or rai ed and/or the bucket cylinder
extended to allow the bucket to penetrate the oil.
3. A the bucket fill , extend the bucket cylinder and extend the dipper or rai e the loader arm to lift the bucket clear of
the hole.
4. The depth of the hole will be controlled by the amount the dipper i extended and the height of the loader arm .
• U e extreme care when working on hill ide . Alway dump loaded bucket on uphill ide of backhoe to minimize
po ibility of up et.
• Exerci e caution when working clo e to fence , ditche or on uneven ground.
DO NOT:
• Dig clo e to the loader’ wheel or under the loader. Thi could cau e a cave-in and vehicle overturn .
TO DUMP ON GROUND:
• With the bucket rai ed clear of the hole, lowly pivot the dipper tick ideway (right or left). Thi will wing the bucket
away from the trench and to the ide to dump.
• Keep load clo e to the ground while tran porting.
TO CUT A SHALLOW TRENCH:
1. With the loader arm partially rai ed and the bucket cylinder partially extended, lowly curl the dipper tick toward the
loader (u ing the loader’ tilt control). The loader arm may need to be lowered or rai ed to allow the bucket to
penetrate the oil.
2. When the bucket i po itioned at the de ired depth, lowly back up the loader, keeping the bucket height con tant to
cut a hallow amount of oil.