Wallenstein GX620 Operator's Manual

Mounted backhoes

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Operator's manual (50 pages)

Operator's manual (48 pages)

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EMB MFG INC.

GX620

GX920

MOUNTED BACKHOES

GX620, GX720, GX920

& GX920 XT SERIES

OPERATOR'S MANUAL

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Page 1 EMB MFG INC. GX620 GX920 MOUNTED BACKHOES GX620, GX720, GX920 & GX920 XT SERIES OPERATOR'S MANUAL...
Page 2 Wallenstein Authorized Service Centre. If a difficulty develops with the product, contact the local dealer from which you purchased the unit. Only Wallenstein author- ized dealers are authorized to make repairs to the product or affect the replacement of defective parts, which will be done at no charge within a reasonable time after the receipt of the product.
Page 3 WALLENSTEIN BACKHOE ATTACHMENT INSPECTION REPORT This form must be ﬁ lled out by the dealer and signed by both the dealer and the customer at the time of deliv- ery. Customer’s Name Dealer Name Address Address City, State/Province, Code City, State/Province, Code...
Page 4 SERIAL NUMBER LOCATION Always give your dealer the serial number of your Wallenstein Backhoe Attachment when ordering parts or requesting service or other information. The machine is equipped with a serial plate where indicated. Please mark the number in the space pro- vided for easy reference.
Page 5: Table Of Contents
TABLE OF CONTENTS SECTION DESCRIPTION PAGE Introduction ............1 Safety ..............2 General Safety ............. 3 Equipment Safety Guidelines ......4 Safety Training ............. 5 Safety Signs ............5 Preparation ............6 Operating Safety ..........6 Transport Safety ..........8 Storage Safety .............
Page 6: Introduction
Safe, efﬁ cient and trouble free operation of your Wallenstein Backhoe requires that you and anyone else who will be operating or maintaining the machine, read and understand the Safety, Operation, Maintenance and Trouble Shooting information contained within the Operator's Manual.
Page 7: Safety
If you have any questions not answered in this manual or require additional copies or the manual is dam- aged, please contact your dealer or Wallenstein, 4144 Boomer Line, St. Clements, ON, N0B 2M0. Phone (519) 699-9283 or Fax (519) 699-4146.
Page 8: General Safety
SAFETY 1. Read and understand the YOU are responsible for the SAFE operation and Operator’s Manual and all maintenance of your Wallenstein Backhoe Attach- safety signs before operat- ment. YOU must ensure that you and anyone ing, maintaining, adjusting or else who is going to use, maintain or work around servicing the Backhoe.
Page 9: Equipment Safety Guidelines
EQUIPMENT SAFETY GUIDELINES 1. Safety of the operator and bystanders is one 7. Never exceed the limits of a piece of machin- of the main concerns in designing and de- ery. If its ability to do a job, or to do so safely, veloping equipment.
Page 10: Safety Training
SAFETY TRAINING SAFETY SIGNS 1. Keep safety signs clean and legible at all 1. Safety is a primary concern in the design and manufacture of our products. Unfortunately, times. our efforts to provide safe equipment can 2. Replace safety signs that are missing or have be wiped out by a single careless act of an operator or bystander.
Page 11: Preparation
PREPARATION 1. Never use the engine and machine until you 4. Operate the machine only have read and completely understand this with a tractor equipped manual, the Tractor Operator's Manual and with an approved Roll- each of the Safety Messages found on the Over-Protective Structure safety signs on the tractor and machine.
Page 12: Operating Safety
2.6 OPERATING SAFETY 11. Keep boom and bucket away from overhead 1. Please remember it is important that you read and underground power lines. Electrocution and heed the safety signs on the Backhoe. can occur without direct contact with an over- Clean or replace all safety signs if they can- head power line.
Page 13: Transport Safety
TRANSPORT SAFETY MAINTENANCE SAFETY 1. Comply with state and local laws governing 1. Good maintenance is your responsibility. Poor safety and transporting of machinery on public maintenance is an invitation to trouble. roads. 2. Follow good shop practices. 2. The use of ﬂ ashing amber lights is accept- able in most localities.
Page 14: Hydraulic Safety
2.10 HYDRAULIC SAFETY 1. Make sure that all the components in the hy- draulic system are kept in good condition and are clean. 2. Before applying pressure to the system, make sure all components are tight, and that lines, hoses and couplings are not damaged. 3.
Page 15: Employee Sign-Off Form
2.11 SIGN-OFF FORM Wallenstein follows the general Safety Standards speciﬁ ed by the American Society of Agricultural and Biological Engineers (ASABE) and the Occupational Safety and Health Administration (OSHA). Anyone who will be using and/or maintaining the Backhoe must read and clearly understand ALL Safety, Usage and Maintenance information presented in this manual.
Page 16: Safety Sign Locations
SAFETY SIGN LOCATIONS THREE PANEL SAFETY SIGNS The types of safety signs and locations on the equipment are shown in the illustrations that follow. Good safety requires that you familiarize yourself with the various safety signs, the type of warning and the area, or particular function related to that area, that requires your SAFETY AWARENESS.
Page 17 The types of safety signs and locations on the equipment are shown in the illustrations that follow. Good safety requires that you familiarize yourself with the various safety signs, the type of warning and the area, or particular function related to that area, that requires your SAFETY AWARENESS. •...
Page 18: Two Panel Safety Signs
TWO PANEL SAFETY SIGNS The types of safety signs and locations on the equipment are shown in the illustrations that follow. Good safety requires that you familiarize yourself with the various safety signs, the type of warning and the area, or particular function related to that area, that requires your SAFETY AWARENESS. •...
Page 19 The types of safety signs and locations on the equipment are shown in the illustrations that follow. Good safety requires that you familiarize yourself with the various safety signs, the type of warning and the area, or particular function related to that area, that requires your SAFETY AWARENESS. •...
Page 20: Operation
TO THE NEW OPERATOR OR OWNER Follow all safety instructions exactly. Safety The Wallenstein Backhoe is a medium duty ma- is everyone's business. By following recom- chine that attaches to the 3 point hitch or sub- mended procedures, a safe working environ-...
Page 21: Machine Components
MACHINE COMPONENTS The Wallenstein Backhoe Attachment attaches to a 3 point hitch or subframe of a small Agri- cultural or compact tractor. The Backhoe can also be mounted on a skid steer. The main frame mounts to the 3 point hitch or subframe and includes the controls and operator's seat.
Page 22: Machine Break-In
MACHINE BREAK-IN PRE-OPERATION CHECKLIST Although there are no operational restrictions Efﬁ cient and safe operation of the Backhoe re- on the Backhoe when used for the ﬁ rst time, it is quires that each operator reads and understands recommended that the following mechanical items the operating procedures and all related safety be checked: precautions outlined in this section.
Page 23: Equipment Matching
Recommended lecting a tractor to use on the machine. Tractor Horsepower Horsepower: Although horsepower is not required to operate the GX620 20 - 35 backhoe, it does establish the size of the 3 point GX720 30 - 55 hitch and total weight for machine stability. Do not...
Page 24: Controls
CONTROLS All controls on the Backhoe are mounted on top of the main frame within easy reach of the operator sitting in the seat. It is recommended that all operators review this section of the manual to familiarize themselves with the location and function of all machine controls before starting.
Page 25 Flow Control Valve: This dial sets the ﬂ ow control valve that controls the amount of oil to the boom swing circuit. Turn the dial clockwise to reduce the amount of oil ﬂ ow and slow the speed of the boom swing.
Page 26: Machine Preparation And Assembly
MACHINE PREPARATION AND ASSEMBLY The backhoe(s) can be mounted to a wide va- riety of models and makes of tractors with dif- ferent features and conﬁ gurations. However mounting of adaptors and other brackets must be performed on the tractor prior to hooking up the backhoe.
Page 27 6. Remove drawbar anchor bracket. 7. Mount anchor bracket to the tractor draw- bar. 8. Tighten fasteners to their specified torque. Bracket Installed Fig. 7 ANCHOR BRACKET 9. Check that the center link and support strut position the frame 13 inches (330mm) above the ground.
Page 28 4.7.2 BELLY MOUNT SYSTEM The backhoe can be mounted to smaller, low horsepower tractors and provide excellent per- formance. Dynamic loading during operation can introduce high structural loads into the trac- tor frame. A reinforcing frame can be installed on each side to provide extra support. Contact your dealer or the factory for details on the re- inforcing kit for your speciﬁ...
Page 29 4.7.3 4 POINT MOUNTING SYSTEM Smaller tractors are not normally designed with an appropriate 3 point hitch for mounting a back- hoe. A speciﬁ c kit is available that attaches to the rear of the tractor and front of the backhoe that allows for mounting.
Page 30 4.7.4 AUXILIARY HYDRAULIC SYSTEM Some tractors are not equipped with a hydraulic system that can be used to power the backhoe. An optional aux- iliary hydraulic system is available and can be mounted to the backhoe. When mounting the auxiliary hydraulic system, follow this procedure: 1.
Page 31 4. Remove the couplers from the hose ends. 5. Wrap the threads with teﬂ on tape to prevent leaks. Fig. 15 COUPLER REMOVED 6. Connect the input (high-pressure) line to the pump outlet. Tighten to its speciﬁ ed torque. 7. Connect the return (low-pressure) line to the ﬁ...
Page 32: Attaching / Unhooking
ATTACHING / UNHOOKING TRACTOR The machine is shipped from the factory in a basic, universal conﬁ guration that allows it to be mounted to any model tractor with the ap- propriate mounting kit. This section will cover the mounting of some typical kits. Contact your dealer or the factory for more details about your speciﬁ...
Page 33 5. Start the tractor engine. set parking brake, set the throttle at its mid-range and place hydrau- lic lever in detent. Stored 6. Use the controls to raise the backhoe frame to match the tractor mounting points. 7. Raise each stabilizer in turn along with the dipper / bucket to raise the frame.
Page 34 9. Install the pins and retainers through the lower links. Right. Left. Right Left Fig. 22 PINS AND RETAINERS 10. Install the pin and retainer through the top link. NOTE It may be necessary to move the dipper / bucket to align the holes.
Page 35 12. Retract the boom / bucket and stabilizers. 13. Carefully use the controls to set the bottom of the frame 13 inches (330 mm) above the ground. IMPORTANT If the top link and strut do not support the frame at this height, they need to be re-adjusted so they do.
Page 36 4.8.2 MOUNTING WITH OPTIONAL HYDRAULIC PUMP The Backhoe should always be located on a level, dry area that is free of debris and other foreign objects. When attaching the Backhoe with the optional hydraulic pump to the tractor, follow this procedure: 1.
Page 37 7. Use the backhoe con- trols to set and move the height of the frame. 8. Move the dipper / buck- et and the stabilizers in small movements to align the backhoe mounting brackets with the pins on the tractor. Fig.
Page 38 9. Back the tractor until the mounting brackets align with the tractor. Move the frame up as required to engage the brackets around the pins. Aligning 10. Install the mounting pins and their retainers through the anchor brackets. Pin (typical) Mounting Pin Fig.
Page 39 11. Raise the boom, raise dipper, retract bucket and raise stabi- lizers. 12. Reverse the above proce- dures when unhooking a backhoe that is equipped with an optional PTO kit. NOTE It is recommended that planks Mounted be placed under the stabilizers and bucket for added support.
Page 40 4.8.3 MOUNTING TO SKID STEER The Backhoe can be mounted to a skid steer loader if it is equipped with the appropriate mounting kits. The re- mote hydraulic outlet must be located at the end of the loader arms to pro- vide pressurized oil to the backhoe.
Page 41 6. Drive up to the backhoe while aligning the mounting compo- nents. Fig. 34 ALIGNING 7. Connect the hydraulics: a. Use a clean rag or paper towel to clean the dirt from the couplers on the hose ends and the skid steer. b.
Page 42 Start the skid steer and place the hydraulic system in detent to supply oil to the coupler. Climb on the backhoe and use the controls to raise the frame if required to allow the skid steer face plate to mate with the backhoe.
Page 43 13. Mount the support turnbuckles between the skid steer and mounting frame. 14. Install anchor pins and retain- ers. 15. Be sure that they are the same length to equalize the loading. Measure to be sure. Turnbuckles Pins and Retainers Fig.
Page 44: Field Operation
FIELD OPERATION OPERATING SAFETY 1. Please remember it is important that you 9. Position Backhoe so that loads extend read and heed the safety signs on the Back- directly behind machine when lifting or plac- hoe. ing heavy objects. 2. Always use the center anchor bracket when 10.
Page 45 7. Training: Each operator must be trained in the proper operating procedures prior to being allowed to operate the machine. a. Review control location, function and movement directions. b. Move the unit to a large open area to allow the operator to become familiar with control function and machine re- sponse.
Page 46 9. Machine Placement: It is the responsibility of the operator to review the work site layout and how to best position the machine. Items to consider include but are not limited to: a. Working Inside a Building: Some jobs require that the backhoe be op- erated inside a building.
Page 47 10. Park the tractor / backhoe at its appro- priate location and lower the loader to the ground (if so equipped). 11. Set the park brake. 12. Starting: a. Start the tractor engine (refer to tractor manual). b. Place hydraulic circuit in detent or engage PTO clutch (refer to tractor manual).
Page 48 14. Stopping: a. Lower the dipper / bucket to the ground. b. Place all controls in neutral. c. If the machine will be moved to a new location, swing the boom into its straight posi- tion and fully retract boom to align lock pin brackets.
Page 49 16. Stabilizers: a. Always extend the stabilizers to set the frame level and vertical when placing the machine at the work site. Support the weight of the rear of the tractor on the stabi- lizers to eliminate the ﬂ exing of the tires during operation.
Page 50 b. Digging With Bucket: This is the procedure recom- mended when a vertical wall is desired at the end of a trench. Set the bucket so the bucket teeth are nearly vertical. ii. Use the boom to force the bucket into the ground. iii.
Page 51 18. Trenching: a. The backhoe works well for trech- ing. Use the arm or bucket method to dig. b. Extend the trench between the sta- bilizers as far as it will go. Be sure not to undercut the stabilizers and create a cave-in.
Page 52 20. Excavating: Use either the arm or the bucket digging method to excavate the hole. a. Be careful not to dig under the stabilizers. Undermining the stabilizer can cause the machine to fall into the hole. b. Dump the bucket far enough away from the hole so the tailings do not fall back into the hole.
Page 53 24. Thumbs (Optional): Backhoes can be equipped with an op- tional thumb that is used as a back-stop when picking up something. Thumbs are available in a mechanical or hydrau- lic position version. a. Mechanical Thumb: A kit is available that can be mounted to the inside of the dip- per arm.
Page 54 25. Operating Hints: a. Review work site before position- ing backhoe and starting work. Stay away from utility lines and obstructions. b. Attach stabilizer bracket between top link anchor and frame. At- tach the support strut between the frame and drawbar to secure mounting linkage geometry.
Page 55: Transporting
Plan your route to avoid heavy trafﬁ c. • Never allow riders on either tractor or ma- chine. Wallenstein Backhoes are designed to be easily and conveniently moved from work site to work site. When transporting, follow this procedure: 1. Be sure all bystanders are clear of the machine.
Page 56 4. Install the boom swing and retract lock pins and secure with its retainer. 5. Keep to the right and yield the right-of- way to allow faster trafﬁ c to pass. Drive on the road shoulder, if permitted by law. 6.
Page 57: Storage Safety
4.11 STORAGE STORAGE SAFETY • Store the unit in an area away from human activity. • Do not permit children to play on or around the stored machine. • Store the unit in a dry, level area. Support the frame with planks if required. 4.11.1 PLACING IN STORAGE After the season's use, the machine should be thor- 12.
Page 58 4.11.2 REMOVING FROM STORAGE When removing from storage and preparing to use, fol- low this procedure: 1. Clear the area of bystanders, especially small chil- dren and remove foreign objects from the machine and work area. 2. Attach the tractor to the backhoe by following the procedure in Section 4.8.
Page 59: Service And Maintenance
SERVICE AND MAINTENANCE 5.1 SERVICE MAINTENANCE SAFETY 5.1.1 FLUIDS AND LUBRICANTS • Good maintenance is your responsibility. 1. Grease: Poor maintenance is an invitation to trouble. Use an SAE multipurpose high temperature grease with extreme pressure (EP) perform- • Follow good shop practices. ance.
Page 60 5.1.3 SERVICING INTERVALS The period recommended is based on normal operating conditions. Severe or unusual condi- tions may require more frequent lubrication or oil changes. 8 Hours or Daily Grease the pivot pins. a. Bucket pivots. b. Dipper / Boom pivots. Dipper / Bucket c.
Page 61 Right Stabilizer. g. Boom Pivots. Right Stabilizer g g g Boom Fig. 62 PIVOT PINS 2. Grease the boom swing cylinder pivot pins. Fig. 64 BOOM SWING CYLINDER PIVOT PINS...
Page 62 3. Grease the pivot pins. a. Bucket. b. Dipper. c. Boom. d. Boom swing. e. Stabilizers. Fig. 65 CYLINDER RAMS (Typical) 40 Hours 1. Check oil level in optional reservoir. Add as required. Fig. 66 OIL LEVEL...
Page 63 100 Hours 1. Clean optional hydraulic sys- tem screen. Fig. 67 OIL SCREEN 1000 Hours 1. Change optional hydraulic system oil. Fig. 68 OIL DRAIN PLUG...
Page 64 Annually 1. Wash and clean machine. GX 920 GX 620 Fig. 69 MACHINE...
Page 65 5.1.4 SERVICE RECORD See Lubrication and Maintenance sections for details of service. Copy this page to continue record. ACTION CODE CHECK CLEAN GREASE CHANGE HOURS SERVICED MAINTENANCE 8 Hours or Daily Bucket Pivots Dipper / Boom Pivots Boom Pivots Left Stabilizers Right Stabilizers CL Steering Cylinder Pivots 40 Hours...
Page 66: Maintenance
MAINTENANCE 5.2.1 HYDRAULIC OIL Every 1000 operating hours or annually, whichever comes ﬁ rst, the oil in the optional hydraulic system should be changed. To change oil, follow the procedure below: 1. Stop the engine and allow the system to cool to the touch.
Page 67: Troubleshooting
TROUBLE SHOOTING The Wallenstein Backhoe is designed to ﬁ t on the back of a small agricultural tractor and is used to dig, excavate and trench. It is a simple and reliable system that requires minimal maintenance. In the following section, we have listed many of the problems, causes and solutions to the problems that you may encounter.
Page 68: Specifications
SPECIFICATIONS MECHANICAL Model GX620 GX720 GX920 GX920XT Transport Height 63" (1600 mm) 79" (2006 mm) 92" (2337 mm) 92" (2337 mm) Transport Width 40" (1016 mm) 42.5" (1079.5 mm) 42.5 (1079.5 mm) 42.5 (1079.5 mm) Ground Clearance 10.5" (266.7 mm) 10.5"...
Page 69: Bolt Torque
BOLT TORQUE CHECKING BOLT TORQUE The tables shown below give correct torque values for various bolts and capscrews. Tighten all bolts to the torques speciﬁ ed in chart unless otherwise noted. Check tightness of bolts periodically, using bolt torque chart as a guide. Replace hardware with the same strength bolt. ENGLISH TORQUE SPECIFICATIONS Bolt Torque* Bolt...
Page 70: Hydraulic Fitting Torque
HYDRAULIC FITTING TORQUE Tube Nut Size Torque Recommened Tightening Flare Type Tube Fittings * Size Across Value• Turns To Tighten Flats (After Finger 1. Check ﬂ are and ﬂ are seat for defects Tightening) that might cause leakage. (in.) (in.) (N.m) (lb-ft) (Flats)
Page 71: Hydraulic Fluid - Msds
HYDRAULIC OIL - MATERIAL SAFETY DATA...
Page 75: Index
INDEX PAGE PAGE Safety ..............2 Equipment Safety Guidelines .....4 Assembly ............21 General Safety ...........3 Hydraulic Safety .........9 Maintenance Safety ........8 Operating Safety.........7 Preparation ..........6 Safety Signs ..........5 Index ..............70 Safety Training..........5 Introduction ............1 Sign-Off Form ...........10 Storage Safety ..........8 Transport Safety .........8 Safety Sign Locations ........
Page 76 EMB MANUFACTURING INC. 4144 BOOMER LINE ST. CLEMENTS, ON N0B 2M0 CANADA PH: (519) 699-9283 FAX: (519) 699-4146 PRINTED IN CANADA NUMBER: JANUARY 2011 PART NUMBER: Z97054...

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Gx720 Gx920 Gx920 xt

Wallenstein GX620 Operator's Manual

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