509 & 511 POWER BACKHOES OPERATOR’S MANUAL SERIAL NUMBER: ___________________ MODEL NUMBER: ___________________ 800-922-2981 I www.paladinbrands.com Manual Number: OM575 Part Number: 75475 Rev. 3 P.O.
TABLE OF CONTENTS POWER BACKHOES TO THE OWNER ............................................................................................... A SAFETY PRECAUTIONS ................................................................................... B Safety Alert Symbol The Operator The Vehicle Working With The Backhoe Transporting The Backhoe Maintenance INTERNATIONAL SYMBOLS ............................................................................ C PRE-OPERATION ........................................
A TO THE OWNER GENERAL COMMENTS Congratulations on the purchase of your new backhoe! Your backhoe was carefully designed and manufactured to give you many years of dependable service. Your backhoe will require some minor maintenance (such as cleaning and lubricating) to keep it in top working condition. Be sure to observe all maintenance procedures and safety precautions in this manual and on the safety decals located on the backhoe and on any equipment on which the backhoe is mounted.
B B SAFETY PRECAUTIONS TAKE NOTE! THIS SAFETY ALERT SYMBOL FOUND THROUGHOUT THIS MANUAL IS USED TO CALL YOUR ATTENTION TO INSTRUCTIONS INVOLVING YOUR PERSONAL SAFETY OR OTHERS. FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN INJURY OR DEATH. THIS SYMBOL MEANS: ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! SIGNAL WORDS: Note the use of signal words DANGER, WARNING, and CAUTION with the safety messages.
B B SAFETY PRECAUTIONS THE OPERATOR A careful operator is the best operator. Most accidents can be avoided by taking certain precautions. The following precautions are suggested here to help prevent accidents. Read and understand these safety precautions before operating the vehicle and backhoe. Make sure that the equipment is operated only by responsible individuals with the proper instruction. The operator should be familiar with the controls, all safety precautions and all potential hazards.
B B SAFETY PRECAUTIONS 6. Do not take passengers on the vehicle or backhoe. There is no safe place for a passenger. 7. Use the handholds and step plates when getting on/off the vehicle. Failure to do so could cause a fall. 8. Inspect the vehicle before you try to operate the unit. Check for needed maintenance or repairs and be sure to have them done before using the equipment. 9. Before performing maintenance.
B B SAFETY PRECAUTIONS 5. Block off work area from all bystanders, livestock, etc. Allow plenty of room for backhoe reach and swing. 6. When operating on slopes, dig with the backhoe uphill, and avoid full reach and swinging the backhoe bucket to the downhill side. Tipping could result. 7. Operate backhoe only from backhoe seat. 8. Use your backhoe only for digging. Do not use it to pull things, as a battering ram, or attach ropes, chains, etc., to the unit. 9.
B B SAFETY PRECAUTIONS MAINTENANCE 1. Never work on equipment while it is running. Block up equipment, set hand brake, lower bucket and stabilizers, turn off the tractor and remove the key before performing repairs. 2. Never make hydraulic repairs while the system is under pressure, or the cylinders are under load. Serious personal injury or death could result. 3. Observe proper maintenance schedules and repairs to keep unit in safe working order. 4.
C C INTERNATIONAL SYMBOLS As a guide to the operation of your equipment, various international symbols have been utilized on the instruments and controls. The symbols are shown below with an indication of their meaning.
D D PRE-OPERATION 509 & 511 POWER BACKHOE GENERAL INFORMATION The purpose of this manual is to assist in setting up, operating and maintaining your backhoe. Read it carefully. It furnishes information and instructions that will help you achieve years of dependable performance. Right and left, when referred to in this manual, are determined from the operator's control position when facing the backhoe.
D D PRE-OPERATION BACKHOE MAJOR COMPONENT NOMENCLATURE 509 & 511 BACKHOE GENERAL INFORMATION Throughout this manual, reference is made to various backhoe components. The purpose of this page is to acquaint you with the various names of these components. This knowledge will be helpful when reading through this manual or when ordering service parts.
G OPERATING INSTRUCTIONS CONTROLS GENERAL INFORMATION Your backhoe is operated by four different control levers. Two are for stabilizer operation and the other two operate the swing, boom, dipper, and bucket functions. The information contained below will help you become familiar with the operation of each control lever. Read the safety precautions (Section B) of this manual before attempting to use the backhoe.
G G OPERATING INSTRUCTIONS OPERATING TECHNIQUES ATTACHMENT TYPE BACKHOES GENERAL INFORMATION When operating the backhoe, smoothness of technique should be strived for at all times. Smoothness will come with experience and practice at feathering the controls. Establish a flowing digging cycle to increase operator efficiency and save unnecessary wear on the machine. Observe the following points to obtain the best results and to fully utilize the digging force of the backhoe.
G G OPERATING INSTRUCTIONS OPERATING TECHNIQUES ATTACHMENT TYPE BACKHOES BEFORE YOU START DIGGING (CONTINUED) Once the unit is positioned, lower the stabilizers to the ground. The tires should still be supporting most of the vehicle weight with the stabilizers relieving only part of the weight, and mainly acting to give the unit a wider base for increased stability and to keep the unit from moving or bouncing with backhoe use. The front end loader should also be lowered if the unit is so equipped.
G G OPERATING INSTRUCTIONS OPERATING TECHNIQUES ATTACHMENT TYPE BACKHOES BASIC DIGGING TECHNIQUE When starting an excavation, make the first cut of each section shallow, being careful to follow the exact layout of the excavation. The reason for the shallow cut is to minimize damage to the sod and to facilitate replacement.
G G OPERATING INSTRUCTIONS OPERATING TECHNIQUES ATTACHMENT TYPE BACKHOES BASIC DIGGING TECHNIQUES (CONTINUED) Once the sides are cleaned up, finish grading the bottom of the excavation. This is done by making the remaining cuts long and shallow, concentrating on making them level and smooth. Remove any remaining spoil. Check the excavation bottom for depth and levelness, making any adjusting cuts as needed. The basic steps just listed at the same regardless of the excavation.
G G OPERATING INSTRUCTIONS OPERATING TECHNIQUES ATTACHMENT TYPE BACKHOES TRENCHING BETWEEN A BUILDING AND AN OPEN EXCAVATION (CONTINUED) Position the unit so the backhoe swing post is over the centerline of the trench connection. Dig with the backhoe at extreme swing positions, and in as close to the stabilizers as possible. Pile the soil on the opposite side of the trenches. Position the unit forward so the two trenches can be connected. Pile the spoil on the opposite side of the trench.
G G OPERATING INSTRUCTIONS OPERATING TECHNIQUES ATTACHMENT TYPE BACKHOES EXCAVATING ON SLOPES When digging on slopes always face the backhoe upgrade whenever possible. It may be necessary to cut a level surface in the hill for the backhoe to sit in when operating on slopes. This will allow the backhoe to sit level for digging the main excavation. Pile the spoil from the surface downhill. When digging the main excavation, pile the spoil uphill.
G G OPERATING INSTRUCTIONS OPERATING TECHNIQUES ATTACHMENT TYPE BACKHOES PIPELINE LEAK REPAIR To check for pipeline leaks, start by digging a bellhole about six feet wide and ten feet long. Then, dig lengthwise along the pipeline to locate the leak. Once the leak is located, position the unit to dig at grade level on both sides of the pipeline. If a section of pipe is to be replaced, strip the soil from both ends of the bellhole.
G G OPERATING INSTRUCTIONS OPERATING TECHNIQUES ATTACHMENT TYPE BACKHOES MISCELLANEOUS - BACKFILLING To backfill an excavation, lower the extended bucket into the spoil pile. Curl the bucket and lift it clear of the spoil pile. Swing the bucket to the excavation and extend the bucket. Return the bucket to the spoil pile and continue the cycle until the job is completed. IMPORTANT: Do not backfill by using the swing circuit and dragging the bucket sideways.
G G OPERATING INSTRUCTIONS TRANSPORTING GENERAL INFORMATION Follow the simple steps listed below when preparing the backhoe for transportation between work sites. Read and follow the safety precautions for backhoe transporting listed in Section B of this manual before moving the backhoe. 1. Before transporting the backhoe, raise the boom, dipper, and bucket to the transporting position. 2. Engage the swing lock (if so equipped) by pushing down and to the left on the red swing lock ball handle. 3.
H H LUBRICATION 509 & 511 BACKHOE GENERAL INFORMATION Economical and efficient operation of any machine is dependent upon regular and proper lubrication of all moving parts with a quality lubricant. Neglect leads to reduced efficiency, heavy draft, wear, breakdown, and needless replacement parts. All parts provided with grease fittings should be lubricated as indicated. If any grease fittings are missing, replace them immediately. Clean all fittings thoroughly before using grease gun.
H H LUBRICATION 509 & 511 BACKHOE BACKHOE LUBRICATION DIAGRAM The following diagram is provided to help you locate all the points on your backhoe that need lubricating. Be sure to follow the lubrication intervals as noted by the lubrication symbols used on this page. Always replace any missing grease fittings as soon as possible.
L L MAINTENANCE GENERAL MAINTENANCE GENERAL INFORMATION Regular maintenance is the key to long equipment life and safe operation. Maintenance requirements have been reduced to an absolute minimum. However, it is very important that these maintenance functions be performed as described below. EVERY 8 HOURS OF OPERATION Grease all swivel points (ram and base end of all cylinders) thoroughly. Excessive wear and even mechanical damage to pins and cylinders can result from inadequate lubrication.
L L MAINTENANCE GENERAL MAINTENANCE CONTROL VALVE The hydraulic control valve maintenance in normally limited to replacement of O-ring seals, cleaning and the replacement of valve sections or relief valve cartridges. The most common cause of premature wear and malfunctioning of hydraulic system components is the ingress on contaminants and incorrect high pressure inlet and low pressure return connections (cavitation). Observe a high standard of cleanliness when doing valve maintenance.
L L MAINTENANCE POWER DIG BUCKETS DIGGING POSITIONS Power dig buckets may be installed in any one of three different digging positions. By using the different pairs of bucket link mounting holes, digging characteristics of the backhoe can be changed to suit the working conditions. BUCKET LINK MOUNTING HOLES A B C POWER DIG BUCKET "A" Position A is the power digging position for maximum digging force in hard ground.
L L MAINTENANCE HOSE ROUTING - 509 511 BACKHOE GENERAL INFORMATION The purpose of this page is to show the hydraulic hose routing between the backhoe control valve and the various backhoe hydraulic cylinders. This information is helpful when trouble shooting cylinder and control valve related problems. Simply match the number of the hydraulic cylinder port (shown in the bottom diagram), to the corresponding number on the backhoe control valve (shown in the top diagram).
MAINTENANCE INSTRUCTIONS CYLINDER SEAL REPLACE GENERAL INFORMATION The following information is provided to assist you in the event you should need to repair or rebuild a hydraulic cylinder. When working on hydraulic cylinders, make sure that the work area and tools are clean and free of dirt to prevent contamination of the hydraulic system and damage to the hydraulic cylinders. Always protect the active part of the cylinder rod (the chrome section).
MAINTENANCE INSTRUCTIONS CYLINDER SEAL REPLACE 3 . Pull the cylinder rod from the cylinder tube. 6. Remove and discard all old seals. THREADED TYPE GLAND 4 . Inspect the piston and the bore of the cylinder tube for deep scratches or galling. If damaged, the piston and cylinder tube must be replaced. 1 . Rotate the gland with a spanner wrench counter-clockwise until the gland is free of the cylinder tube. 5 .
MAINTENANCE INSTRUCTIONS CYLINDER SEAL REPLACE 3 . Inspect the piston and the bore of the cylinder tube for deep scratches or galling. If damaged, the piston and cylinder tube must be replaced. ASSEMBLY PROCEDURE GENERAL IMPORTANT: Replace all seals even if they do not appear to be damaged. Failure to replace all seals may result in premature cylinder failure. 4 . Remove the hex nut, piston, flat washer or spacer tube (if so equipped), and gland from the cylinder rod.
MAINTENANCE INSTRUCTIONS CYLINDER SEAL REPLACE RETAINING RING TYPE GLAND 1. After installing the internal gland seal, install the external O-ring and backup washer. O - RING Now insert the seal into the gland from the inner end. Position the seal in it's groove, and release and remove the tool. Press the seal into its seat the rest of the way by hand. NOTE: Threaded gland is shown above for reference. 2. Install the new piston ring, rod wiper, O-rings, and backup washers, if applicable, on the piston.
MAINTENANCE INSTRUCTIONS CYLINDER SEAL REPLACE shown on the chart for the thread diameter of the cylinder rod.(see chart) IMPORTANT: Do not contact the active surface of the cylinder rod with the vise. Damage to the rod could result. Rotate the gland until the gland retaining rod forms a ring between the gland and the cylinder tube. When complete, the bent end of the gland retainer ring should be hidden (not turned so it is exposed in the slot) to prevent it from popping out. 4 .
MAINTENANCE INSTRUCTIONS CYLINDER SEAL REPLACE 2 . Slide the gland onto the cylinder rod being careful not to damage the rod wiper. Then install the spacer, or flat washer (if so equipped), small Oring, piston, and hex nut onto the end of the cylinder rod. 3 . Secure the cylinder rod (mounting end) in a vise, with a support at it's center. Torque the nut to the amount shown for the thread diameter of the cylinder rod ( see chart ).
MAINTENANCE INSTRUCTIONS CYLINDER SEAL REPLACE TORQUE SPECIFICATION CHART Use the following torque values when tightening the nuts on the cylinder rod threads. POUNDS - FEET Thread Diameter Minimum Maximum 7/8 " 150 200 230 325 1-1/8 " 350 480 1-1/4 " 490 670 1-3/8 " 670 900 * 1 " * 1" Thread Diameter WITH 1.25" Rod Diameter ...... Min. 230 ft. lbs. .......... Max. 250 ft. lbs.
M M BACKHOE STORAGE 509 & 511 BACKHOE BACKHOE STORAGE To prepare the backhoe for storage, first wash off all dirt and grime from the unit. Coat the exposed portions of the cylinder rods with grease. Lubricate all grease fittings. Make sure the backhoe hydraulic system is properly sealed against contaminates entering the unit. When storing the backhoe, place the unit in a clean dry place with a cover over the unit if possible.
N N TROUBLESHOOTING PROBLEM POSSIBLE CAUSE REMEDY Backhoe fails to lift or swing Low oil supply Add oil Improper hose hookup Check hydraulic diagram; reinstall properly Worn control valve section Replace section Pump damaged or worn Replace pump Broken hydraulic line Check for leaks and replace line Jammed swing linkage Remove interference Bent cylinder rod Replace or repair cylinder Swing speed control completely closed Open swing speed control valve Cold oil Warm oil with engine at
N N TROUBLESHOOTING PROBLEM POSSIBLE CAUSE REMEDY Backhoe fails to hold up load Broken or leaking lines Replace broken hose and check for leaks Dirty oil Drain and refill oil, replace filter Oil leaking past cylinder packings Replace packings Oil leaking past control valve Replace or repair worn section Faulty relief valve Clean or replace Dirty oil Drain and refill oil, replace filter Oil heating Air entering suction line Eliminate leaks to pump Partially plugged inlet filter Clean filte
N N TROUBLESHOOTING PROBLEM POSSIBLE CAUSE REMEDY External leakage Control valve tie bolts loose Torque bolts to 20 ft.lbs.
O O BOLT TORQUE BOLT TORQUE SPECIFICATIONS GENERAL TORQUE SPECIFICATION TABLE Use the following torques when special torques are not given. These values apply to fasteners as received from suppliers, dry, or when lubricated with normal engine oil. They do not apply if special graphited or moly disulphide greases or other extreme pressure lubricants are used. This applies to both UNF and UNC threads. Remember to always use grade five or better when replacing bolts. SAE Grade No.
P P SPECIFICATIONS 509 & 511 POWER BACKHOE K BACKHOE DIMENSIONS SPECIFICATIONS AND DESIGN ARE SUBJECT TO CHANGE WITHOUT NOTICE AND WITHOUT LIABILITY THEREFORE. WHENEVER APPLICABLE SPECIFICATIONS ARE IN ACCORDANCE WITH SAE STANDARDS. J G C A H 16" B 16" E F M D 2' BACKHOE SPECIFICATIONS TABLE 509 511 TRANSPORT A Transport Height (with boom fully retracted) ....................... 7'9" ............. 8'10" Transport Width (with stabilizers up) .................................... 5'0" ...............
P P SPECIFICATIONS CYLINDER AND BUCKET SPECIFICATIONS 509 & 511 POWER BACKHOE CYLINDER SPECIFICATION TABLE CYLINDER 509 511 BUCKET CYLINDER Cylinder # ................................................... 82477 ................ 82477 Bore ............................................................. 3.00" .................3.00" Stroke ........................................................ 18.38" .............. 18.38" Rod Diameter .............................................. 2.00" .................2.
Q Q DECALS DECAL PLACEMENT GENERAL INFORMATION The diagrams on this page shows the location of all the decals used on the 500 series backhoes. The decals are identified by their part numbers, with reductions of the actual decals located on the following pages. Use this information to order replacements for lost or damaged decals. Be sure to read all decals before operating the backhoe. They contain information you need to know for both safety and backhoe longevity. 4368 40257 40151 4247 (If so Equipped.
Q Q DECALS PART #4368 OPERATING CONTROLS DECAL PART #4170 PETCOCK OPERATION DECAL PART #40219 BOOM LOCK DECAL PART #4247 SWING SPEED CONTROL DECAL PART #40249 SWING LOCK DECAL 6788 1-19-96
Q Q DECALS PART #4140 BUCKET CONTACT WARNING DECAL MADE IN USA PART #40440 CALL BEFORE YOU DIG PART #4338 MADE IN U.S.A.
Q Q DECALS WARNING TO PREVENT SERIOUS INJURY OR DEATH: PART #40151 HIGH PRESSURE FLUID DECAL IMPORTANT TO PREVENT BACKHOE DAMAGE: Do not operate or work on this machine without reading and understanding Operator's Manual. Avoid unsafe operation or maintenance. Do not operate machine with guards and covers removed. This machine was designed to be operated by one operator. Do not carry passengers on unit. Before installing backhoe on your unit extend boom and dipperstick and lower bucket to ground.
Q Q DECALS PART #40245 (3 REQ'D) BRADCO LOGO - SILBER PART #40356 (2 REQ'D) 511MODEL NUMBER PART #40319 (2 REQ'D) 509 MODEL NUMBER PART #4271 INLINE FILTER DECAL 7478 9-10-04-3
R R PRE-DELIVERY CHECKLIST GENERAL INFORMATION The following is a list of areas that should be inspected by the dealer prior to delivery of the backhoe to the customer. The customer should check the list and make sure that the dealer has completed the inspection. Completion of this check list will help insure that the customer receives the backhoe in complete working order, ready to install. PRE-DELIVERY CHECKLIST - CHECK AND ADJUST AS NECESSARY 1.
S S LIMITED WARRANTY EFFECTIVE ON PRODUCTS MANUFACTURED AFTER JANUARY 1, 2001 All new BRADCO products are warranted to be free from defects in materials or workmanship which may cause failure under normal usage and service when used for the purpose intended.
