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Operator's Manual 

 
 

BACKHOE SERIES 

BH6 - BH7 - BH8 

 
 

VERSION 2.0 - EN 2022 

Summary of Contents for BACKHOE BH6

Page 1: ...Operator s Manual BACKHOE SERIES BH6 BH7 BH8 VERSION 2 0 EN 2022...

Page 2: ...actorimplements com E mail address sales etractorimplements com Phone 562 534 8182 Manual info These are the original instructions The English language is binding No part of this documentation may be...

Page 3: ...s Manual 11 2 6 Intended Users 12 2 7 Intended Use 12 2 8 Unintended Use 12 2 9 Intended Operating Conditions 12 2 10 Tools Parts and Accessories for assembling and adjusting 12 3 SAFETY INFORMATION 1...

Page 4: ...ons before starting the Backhoe 35 4 4 Testing the Hydraulic Hook Up 35 4 5 Important Information before Operating 36 4 6 Pre operation checklist 37 5 OPERATION 38 5 1 1 Human 38 5 1 2 Operator 39 5 1...

Page 5: ...ant troubleshooting instructions for the control valve 62 7 9 Replace Center Section Assemblies 63 7 10 Replacing Spool Seals 64 7 11 SPARE PARTS AND WEARING PARTS 65 7 12 Order Parts 65 7 13 Wearing...

Page 6: ...Operator s Manual Backhoe Series BH Page 6 of 91 Version 2 0...

Page 7: ...r Conveniently attaches via the three point linkage Precision control valves for the smooth operation of hydraulics 180 degree boom swing Replaceable hardened steel teeth on buckets Greasable pivot po...

Page 8: ...PTO Backhoe with self propelled hydraulic infeed in its category We have compiled this Operator s manual to help you understand and appreciate your Backhoe Taking a few minutes to read this manual and...

Page 9: ...ever Victory is not responsible for unsafe situations accidents or damage which are the result of ignoring warnings and regulations as stated on the machine or in this Operator s manual the use of the...

Page 10: ...are of the dangers and hazards of operating this machine by reading it 2 2 Manual Update Reason for raising the Operator s manual to version 2 0 Editorial update according to Standard IEC 82079 Graphi...

Page 11: ...is RED symbol indicates All DANGER notifications WARNING This symbol indicates a potentially hazardous situation that if not avoided could result in death or severe injury or machine damage This ORANG...

Page 12: ...onal use is any other use than described under Intended use 2 9 Intended Operating Conditions Ambient temperature 0 to 40 C Temp transport Storage 10 up to 40 C Lighting Normal ambient lighting 2 10 T...

Page 13: ...g instructions Other activities such as service and maintenance This distinction is because operators must meet other safety requirements than the technical service staff The operator performs the dai...

Page 14: ...nd free from any obstacles Keep in mind that a dangerous situation can always arise Always wear safety glasses and protective shoes when carrying out the operation Never wear loose or torn clothing Pe...

Page 15: ...th all functions of the device Start the implement from the driver s seat only Set up your work site so you are not endangering traffic and the public Take great care to provide adequate warnings Do n...

Page 16: ...ty signs affixed to the tractor and the Backhoe Safety is a primary concern in the design and manufacturing of the Backhoe Unfortunately efforts to provide safe equipment can be wiped out by a single...

Page 17: ...ECIFIC SAFETY RULES FOR BACKHOE OPERATION DO NOT operate the Backhoe unless it is rigidly attached to the tractor KNOW your controls Read this operator s manual and the manual provided with your tract...

Page 18: ...O NOT drive the tractor near the edge of a ditch or excavation ALWAYS use auxiliary lights and devices when transporting on a road or highway to warn operators of other vehicles Check your local gover...

Page 19: ...uidelines pay attention to fire extinguishers and emergency exits Permanently remove spilled liquids immediately to prevent them from slipping Hydraulic liquids should not get into the ground or in su...

Page 20: ...and test the driveline to operate appropriately under expected field conditions Specify and test the proper size joints and telescoping members based on the power required by the implement rotation sp...

Page 21: ...rnings and Instructions Provide warnings and instructions for hazards associated with the machine Provide instructions for proper maintenance and repair Provide labels on the unit to advise the user o...

Page 22: ...r than for Backhoe activities 3 11 Safety Decals and Markings on the Backhoe Your Backhoe comes equipped with all safety decals in place The decals are designed to help you safely operate your impleme...

Page 23: ...0 WARNING decal WARNING FOR HIGH PRESSURE HYDRAULIC FLUID WARNING decal MAX OPERATING PTO SHAFT SPEED 540 rpm ATTENTION POINT Decal Ad grease regularly to the desired nipple IMPORTANT Instruction for...

Page 24: ...oe Series BH Page 24 of 91 Version 2 0 DANGER Decal Eleven important Safety instructions On the Right Side of the Control tower DANGER Decal Warning for proper installation to the hitch On the left si...

Page 25: ...ties are unintended or unexpected events related to an activity s quality These events have severe harmful consequences up to and including death This includes any accident that directly or indirectly...

Page 26: ...embled and strapped to a skid for shipping purposes Initial installation on the tractor will require a hoist or other device capable of safely lifting heavy parts After the initial installation is com...

Page 27: ...city and is in the proper position Do not allow anyone under Backhoe parts supported by the hoist Main parts 1 Hole for boom safety lock pin 2 Bucket 3 Dipper stick 4 Boom 5 Safety swing lock pin 6 St...

Page 28: ...e upper three point Backhoe connection kit Upper three point Backhoe connection kit Some parts may vary in size or length for each model Backhoe The upper connection set consists of Two upper bars Adj...

Page 29: ...ump assembly to the PTO shaft and fix it using the mounting chains 6 Start the PTO at idle speed WARNING The only times you operate the Backhoe from a position other than the operator s seat is during...

Page 30: ...lt the Backhoe frame from the crate bottom and remove all remaining strapping and skid Reposition the hoist on the Backhoe to prevent tipping 13 Use the control handles for the boom and stabilizers to...

Page 31: ...Operator s Manual Backhoe Series BH Page 31 of 91 Version 2 0 WARNING Always stand away from the Backhoe stabilizer legs and along the side of the tractor s rear tires...

Page 32: ...adjustable upper brace links the backhoe mainframe and the tractor s upper hitch connection You can level the backhoe frame by adjusting the upper brace NOTICE Tractor lower links must be kept free of...

Page 33: ...trol handles for the boom or the stabilizers to align the hole in the adjustable upper brace with the tractor upper link weldment Insert the connection pin 6 Check that the Backhoe swing pivot centerl...

Page 34: ...etween the boom and stabilizer circuits WARNING Ensure all the equipment s nuts bolts and hitch connections are tightened after connecting to the tractor and before using the Backhoe for the first tim...

Page 35: ...ckhoe Prolonged exposure to loud noise may cause permanent hearing loss Tractors with or without implements attached can often be noisy enough to cause permanent partial hearing loss We recommend that...

Page 36: ...function It will freefall and could injure bystanders or damage the Backhoe DO NOT touch overhead wires with any part of the Backhoe Use extreme caution when driving the tractor Blind spots can be the...

Page 37: ...echanical condition that this checklist is followed Before operating the Backhoe and each time after that check off the following 1 Ensure the hydraulic oil level is correct When checking the hydrauli...

Page 38: ...uence of drugs or alcohol as severe injury or death could result Read the Operators manual for the tractor Follow all safety and maintenance guidelines in this manual when dealing with the PTO DO NOT...

Page 39: ...dirty or contaminated Inspect bucket teeth sharpen or replace them if necessary Inspect the oil level in the gearbox for the hydraulic gear pump Check the hydraulic gear pump for leakage Check that th...

Page 40: ...e the PTO Gradually increase engine rpm until the PTO shaft speed is 540 rpm Block the tractor wheels and set the parking brake Sit on the operating seat and study the operating decal Start operation...

Page 41: ...tained by digging near the center of the swing arc then you can dump material on either side As the operator becomes more familiar with the Backhoe operation it will be common practice to operate two...

Page 42: ...on You feel a detent or stop when pushing the lever forward to move the boom down Pushing the lever forward will overcome the detent and cause the boom to float or move down or up freely depending on...

Page 43: ...o operations of the boom lever combined with the two operations performed by the bucket and dipper stick control lever provide four simultaneous operations from the two levers keeping cycle time to a...

Page 44: ...winging it to the spoil pile As the pile is approached dump the bucket When the bucket is empty the dipper stick and bucket are in a position to resume digging upon return to the trench IMPORTANT NOTI...

Page 45: ...on the opposite side of the trenches Position the unit forward with the lift and crowed levers so the two trenches can be connected Pile the spoil on the opposite side of the trench Side slope excavat...

Page 46: ...Start the next trench using the spoil to fill the previous groove Miscellaneous When finishing straight walls or bell holes in sandy soil use a platform under the rear tires and stabilizers The platf...

Page 47: ...t horizontal Backfilling Backfill by lifting the bucket over the spoil pile and then crowding in Pull both the crowd and lift levers for smooth even backfilling IMPORTANT Do not backfill using the swi...

Page 48: ...ieve the link pins 6 Carefully remove all link pins 7 Carefully drive the tractor ahead approx 5 to clear the Backhoe frame hooks from the lower 3 point hitch connection points Engage the parking brak...

Page 49: ...ble upper brace 1 Support block for Storage IMPORTANT NOTICE For long term storage coat exposed cylinder rods with grease 6 2 Adjust the Thump Optional part Use the locking pin with an R shaped cotter...

Page 50: ...e stabilizers to remove weight from the rear wheels The wheels must remain touching the ground providing the broadest stabilizer stance and the lowest center of gravity Raising the wheels off the grou...

Page 51: ...h education and knowledge of the machine and safety procedures are entitled to maintenance or service work Always strictly adhered to service intervals prescribed by the manufacturer Always follow the...

Page 52: ...applying pressure to the system FLUID ESCAPING from a tiny hole can be almost invisible Use a small piece of cardboard or wood not your hands to search for suspected leaks PROTECT YOUR EYES Wear safe...

Page 53: ...lter Change Yes 7 3 Bleeding Backhoe Hydraulic System If the hydraulic hoses are disconnected from the Backhoe or tractor all trapped air must be removed after the hoses are connected Start the tracto...

Page 54: ...ts Periodically check to be sure all bolts and nuts are tight Check all pivot pins for cotter pins washers and retainers if missing replace them 7 6 Lubrication The economical and efficient operation...

Page 55: ...hoe Series BH Page 55 of 91 Version 2 0 7 6 1 Oil the following locations with SAE 30 oil A Stabilizer Pivot Pins B Control Handle Linkage C Seat Bracket Pivot 7 6 2 Grease the following locations wit...

Page 56: ...erial presented in this section is offered as a guide to diagnosing probable causes and remedies for general operational problems Match your problem with the typical problem examples given and note th...

Page 57: ...nitially Low oil supply in reservoir Fill to the proper level Loose oil line connections leaks in line or broken pipes Tighten all hose connections and replace damaged O ring at leaking O ring fitting...

Page 58: ...ot be field calibrated or replace cartridge See important instruction 7 8 1 Worn control valve Replace the control valve Loss of power in swing cylinders but other cylinders functioning property Loose...

Page 59: ...isy operation Low oil supply in reservoir Fill to the proper level Air in system Bleed all air circuits by operating the machine at maximum oil flow and complete movements Oil viscosity is too heavy o...

Page 60: ...pressure on mounting bolts The torque of the rods is 20 ft lbs Never force spool if binding occurs See important instruction 7 8 1 The ball in the check valve is stuck or not seating correctly Clean...

Page 61: ...lve Misalignment of control handle linkage Check linkage for binding conditions Spring centered spools do not return to neutral Paint on valve spool sticking valve spool or scored valve spool Clean va...

Page 62: ...ities and certain relief valve cavities to examine for trapped dirt or resetting the main relief valve with a good pressure gauge should be referred to qualified service personnel Dirt and shreds of p...

Page 63: ...ie rod nuts from the right end section using a thin wall socket 5 You can remove the valve sections by sliding the sections along the tie rods 6 Thoroughly clean the O ring counterbores and the ground...

Page 64: ...It will destroy the finished surface 4 At the BACK of the valve remove the seal retainer backup washer spool O ring seal or retaining sleeve bonnet O ring seal and spool U cup seal 5 Thoroughly clean...

Page 65: ...r of crucial parts in stock is advisable to avoid costly downtime The installation mainly includes unique and complex components that you should always replace with similar ones such as knives and bea...

Page 66: ...rectly proportional to the application frequency Usually these parts are economically and technically challenging to repair Often these are universal purchase parts such as knives bearings bushings et...

Page 67: ...rame Use proper lifting equipment a fork truck or a hand pallet jack Always transport the equipment without mechanical shocks knocking or jolting IMPORTANT NOTICE To prevent severe damage to the tract...

Page 68: ...nning of the season and at the time of installation Remove all protective covering Check the reservoir oil at the proper level by looking at the oil gauge When checking the oil level the backhoe shoul...

Page 69: ...rical and electronic equipment batteries and accumulators must be disposed of as chemical waste in the European Union So do not dispose of these products with regular commercial waste To prevent poten...

Page 70: ...02 04 Ball 3 6 LW 8 06 04 02 05 Shaft 1 7 GR16A1 5 Greasy blockage M16x1 5 1 8 BW16 Bonded washer 16 2 9 LW 8 06 07 02 08 Box 1 10 IG180 022 Exhaust bolt 1 11 RDP5A16 Round pin 5x16 2 12 OS725010 Oils...

Page 71: ...Operator s Manual Backhoe Series BH Page 71 of 91 Version 2 0 VICTORY Backhoe Exploded View Hitch mounting Parts...

Page 72: ...Support pin 2 3 left Lower connecting weldment left 1 4 NN20 Nylon lock nut M20 5 5 PW20 Plain washer 20 10 6 HB20A95 Bolt M20x95 1 7 RP4 R pin 4 2 8 HB20A120 Bolt M20x120 1 9 BH7 11 203 Joint plate 2...

Page 73: ...Operator s Manual Backhoe Series BH Page 73 of 91 Version 2 0 VICTORY Backhoe Exploded View Sub Frame Stabilizer Parts...

Page 74: ...washer 20 22 22 22 21 BH7 10 101 Stablizer cylinder pin 4 4 4 22 STP5A35 Split pin 5x35 12 12 12 23 SPS5A20 Spring pin slotted 5 30 10 10 10 24 BH7 07 004 Stablizer cylinder 2 2 2 25 BH7 08 102 Leg fi...

Page 75: ...ltiple unit valve 3 3 3 48 BH7 10 105 Spacer 3 3 3 49 PW10 Plain washer 10 1 1 1 50 HB10A1 25A40 Bolt M10x1 25x40 1 1 1 51 BH7 10 226 Reinforcing plate 2 2 2 52 HN10 Nut M10 2 2 2 53 HB10A65 Bolt M10x...

Page 76: ...HB8A70 Bolt M8x70 1 1 1 3 BH7 02 103 Pin for dipper 1 1 1 4 HB8A55 Bolt M8x55 3 3 3 5 BH7 02 102 Pin for dipper cylinder 1 1 1 6 BH6 07 002 Dipper cylinder BH6 1 6 BH7 07 002 Dipper cylinder BH7 1 6 B...

Page 77: ...BH6 03 011 Boom BH6 1 BH7 03 011 Boom BH7 1 BH8 03 011 Boom BH8 1 12 HP16A25 Hoop 16x25 1 1 1 13 BH7 09 103 Pin for boom cylinder Top 1 1 1 14 BH6 07 001 Boom cylinder 1 BH7 07 001 Boom cylinder 1 BH...

Page 78: ...Operator s Manual Backhoe Series BH Page 78 of 91 Version 2 0 VICTORY Backhoe Exploded View Bucket Dipper Parts...

Page 79: ...07 003 Bucket cylinder BH7 1 BH8 07 003 Bucket cylinder BH8 1 6 RP4 R pin 2 2 2 7 BH7 13 101 Pin for thumb 1 1 1 8 STP5A35 Split pin 5x35 1 1 1 9 BH7 12 011 Tumb support 1 1 1 10 BH7 13 102 Pin for t...

Page 80: ...Operator s Manual Backhoe Series BH Page 80 of 91 Version 2 0 VICTORY Backhoe Exploded View Hydraulic Parts...

Page 81: ...AB Multiple unit valve 1 1 1 24 BH7 05 124 Outlet nipple for value 1 1 1 25 BH7 05 012 Outlet pipe for stabilizer cylinder 2 2 2 26 BH7 07 004 Stabilizer cylinder 2 2 2 27 BH7 05 012 Inlet pipe for s...

Page 82: ...BH8 1 39 BH6 05 012 Inlet pipe for bucket cylinder BH6 1 BH7 05 012 Inlet pipe for bucket cylinder BH7 1 BH8 05 012 Inlet pipe for bucket cylinder BH8 1 40 BH6 07 003 Bucket cylinder BH6 1 BH7 07 003...

Page 83: ...valve 6 5 10900 4K Main relief valve set on 152 bar 1 6 10270 4S Spool Control 9 5 7 10281 4S Spool Control 11 1 8 11007 3S Spool Control S6 RF Heavy Duty 2 9 10266 4S Spool Control S5 2 10 10347 4S...

Page 84: ...40 Outlet body Alternating outlet body 1 4 78 4061 Float spool 1 5 48 5599 Double acting spool 5 6 65 5507 A Load hold check A side 6 7 65 5547 B Load hold check B side 6 8 25 40103 Extended lever 55...

Page 85: ...ie rod locking nuts 3 23 10361 45 Hand lever 2 24 xx 40326 Plastic strip 2 25 45 4369 Spool sealing 8 9 1 Torque Specifications The table below gives the correct torque values for various bolts nuts a...

Page 86: ...il levels grease points and driveline shafts Claims under this Warranty should be made directly to Victory Tractor Implements and all warranty adjustments must be made through an authorized Victory de...

Page 87: ...x height 108 in 122 in 138 in Max off loading height 63 in 70 in 75 in Max lifted weight 880 lb Max bucket digging force 3 300 lb Painting Black Powder coated Steel crate dimensions 220 x 90 x 110 cm...

Page 88: ...imum working height is 10 2 the working radius is 9 6 and the operational depth is 7 Performance BH8 The tractor s PTO output shaft drives the 2250 psi Victory hydraulic gear pump for the Backhoe s hy...

Page 89: ...Operator s Manual Backhoe Series BH Page 89 of 91 Version 2 0 Excavation Specifications BH6...

Page 90: ...Operator s Manual Backhoe Series BH Page 90 of 91 Version 2 0 Excavation Specifications BH7...

Page 91: ...Operator s Manual Backhoe Series BH Page 91 of 91 Version 2 0 Excavation Specifications BH8...

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