Digga BIGFOOT Operator's Manual
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Digga BIGFOOT Operator's Manual

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BIGFOOT, HYDRIVE & MINI BIGFOOT TRENCHERS
Operator's Manual
PM-000252

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  • Page 1 BIGFOOT, HYDRIVE & MINI BIGFOOT TRENCHERS Operator’s Manual PM-000252...
  • Page 2 2 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...
  • Page 3 The following criteria would have been taken into account by Digga or your Digga dealer prior to supplying you with your Trencher. If you have purchased your Trencher from someone other than Digga, be sure to check the following criteria to ensure efficient trenching. The parent machine needs to meet the requirements of the trencher in terms of mass, hydraulic flow and pressure.

  • Page 4: Table Of Contents

    Safety - Decal Label Location..................24 Installation and Operating Instructions................27 Maintenance........................37 Troubleshooting........................ 50 Spare Parts........................51 Notes: Operator’s Manual....................52 Warranty Statement......................53 4 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...

  • Page 5: Critical Information - Service Intervals

    To avoid premature wear and failure, and to fulfil your terms of warranty please read this statement. Your Digga Trencher gearbox must have a first oil change within the first 30 hours of extreme use or 50 hours of moderate use or 3 months of use (whichever comes first) to ensure the bed in of the gearbox.

  • Page 6: To The Purchaser

    Never allow anyone to operate this attachment without reading the “Safety precautions” and “Operating instructions” sections of this manual. Always choose hard and level ground to park the vehicle on and set the brake, so the unit cannot roll. 6 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...

  • Page 7: Service And Preparation For Use

    Digga service agent. Substitute parts will not meet the standards required for safe and dependable operation. Use of non genuine Digga parts will void warranty and Digga will accept no liability whatsoever for consequential damages. For details contact your local Digga dealer. To facilitate warranty or service, record the model and serial number of your unit in the space provided on this page.
  • Page 8 Service and Preparation for Use To avoid any inconvenience before operation, please check that you have received the following items which you may have ordered. BIGFOOT & HYDRIVE TRENCHER 8 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...
  • Page 9 Quick release couplers. Operator's Manual The Digga Trencher receives its power from the parent machine through the Auxiliary Valve Circuit with Quick release couplers normally located on the machine arms near the front. Attaching points on the Trencher are the same as the bucket attaching points on your machine.
  • Page 10 Service and Preparation for Use To avoid any inconvenience before operation, please check that you have received the following items which you may have ordered. MINI TRENCHER 10 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...
  • Page 11 Adjustable skid foot. Hydraulic hoses. Female coupler. Male coupler. Trencher sub-assembly (Mini Bigfoot / Bigfoot) with optional side shift frame. Digging chain of your choice. Operator’s Manual. NOTE This operator’s manual provides measurements in both International System of units (SI) and United States customary...

  • Page 12: Safety Precautions - General Information

    Apply appropriate risk mitigation strategies to make safety a first priority at all times, and if these are not sufficient, stop the job and immediately seek the help of a qualified safety consultant. 12 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...
  • Page 13 Safety Precautions - General Information Dial Before You Dig - AUS & NZ only • Never begin work at a new location until the work area has been fully marked for underground utilities. Buried electrical, telephone, cable wires, gas, water and sewer lines are likely to be present. Unintentionally disrupting these hidden hazards while working with your loader can result dangerous situations and property damage.
  • Page 14 Do not exceed rated operating capacity (ROC) of the host machine, as machine may become unstable resulting in loss of control. Overloading or exceeding the manufacturers specifications will also void all warranty. 14 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...
  • Page 15 Safety Precautions - General Information Operating the Trencher (Continued) • Never use the attachment on a machine that is not equipped with a cab rollover protective structure (ROPS) and/or falling object protective structure (FOPS), and operator restraints (seat belts or equivalent devices).
  • Page 16 Replace decals that are damaged or in unreadable condition. • Store unit in a dry and protected place, as leaving the unit outside will materially shorten its life. 16 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...
  • Page 17 Use extra care when loading or unloading the attachment on to a trailer or truck and disconnect hydraulic couplers from the host machine during the transportation. No responsibility for loss or damage to persons or property in any regard can be attributed to Digga. DANGER During Trencher operation, maintain a minimum “no-work zone”...
  • Page 18 Safety Precautions - General Information Complete a Risk Assessment Your Digga Trencher is a versatile earthmoving machinery attachment, capable of performing its tasks in a safe and effective manner. To ensure the safety of operators and others, it is important to document the work at hand for hazard and risk.

  • Page 19: Safety - Working With The Attachment

    NOTE For any additional safety information please see “Risk Management Booklet”. To obtain a copy of this document please contact Digga Head Office.
  • Page 20 Do not make any modifications to your Trencher. • When making repairs use only authorised Digga service agents and use only genuine Digga parts for the gearbox. For fasteners, hydraulic hoses, or hydraulic fittings, use only properly rated parts. •...

  • Page 21: Safety - Decal Labels

    Safety - Decal Labels The following section provides a glossary of safety labels found on your Digga Trencher. These labels are important ! Become familiar with the meaning and location of these decals prior to operating your attachment. These labels must be maintained and ensure that each label is clean, visible, and legible. To clean the decals use a soft cloth, water, and soap.
  • Page 22 ITEM 3 - Serial Tag. This is dependant on the region. • DE-000626 in the region that includes Europe & UK. • DE-000631 in the region that includes Australia & New Zealand. 22 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...
  • Page 23 ATTACHMENT ENTANGLEMENT/CRUSH DIAL BEFORE YOU PROHIBITED CONNECTIONS HAZARD ITEM 5 ITEM 6 ITEM 7 ITEM 8 DE-002107-1 DANGER CAUTION WARNING WARNING Ensure locking pins on Keep leg or foot and other body Dial before you Dig Do not step on Trencher. parent machine have parts clear of trencher.

  • Page 24: Safety - Decal Label Location

    BFT 1200 X D DKIT1068 ** The Serial Tag will either be DE-000626 or DE-000631. This is dependant on the region. BFT 1500 X D DKIT1069 24 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...
  • Page 25 NOTE The following figure and table show typical safety decal labels location. The actual position and quantity of the labels on your product may differ. HYDRIVE TRENCHER REORDER CODE ITEM DE-002084 DE-002076 DE-000626 EUROPE / UK 3 ** DE-000631 AUS / NZ DE-002085 DE-000054-1 DE-002107-1...
  • Page 26 NOTE EU & UK AUS & NZ ** The Serial Tag will either be DE-000626 or DE-000631. DKIT1065 DKIT1059 This is dependant on the region. 26 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...

  • Page 27: Installation And Operating Instructions

    For fitment of the Trencher to other machines, you must first contact your Digga dealer and receive written confirmation to ensure you do not incorrectly fit the Trencher to a machine with higher flows or pressure than what the Trencher was designed for.
  • Page 28 The Trencher is not a chain saw and must not be used above ground for cutting, shearing or any other use. It should be only used for the purpose it has been designed for. 28 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...
  • Page 29 Ensure that the locking mechanism on your quick attach is engaged, therefore locking the attachment onto the machine. If there is any portion of this manual that you do not understand, contact your Digga dealer or Digga Head Office, Australia.
  • Page 30 21.5 3.48 309.72 NOTE Never lift this product above the operator’s eye level or to a height where visibility is obstructed, which ever is lower. 30 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...
  • Page 31 Installation and Operating Instructions To Cut a Trench • Ensure the foot of your trencher is set in the correct position for the depth you wish to achieve (for Bigfoot Trenchers only). • For Bigfoot Trenchers purchased after August 2014 your trencher will be fitted with a Headstart crumber bar.
  • Page 32 Reverse the machine slowly from the moment you begin to trench. Never attempt to reach the desired depth without reversing. 200mm (8") 2m (6'6") 32 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...
  • Page 33 Installation and Operating Instructions To Cut a Trench (Continued) • Do not apply excessive downward pressure on the crumber bar while beginning a trench. This will cause the spring to over extend as it is going down the first part of the trench resulting in crumber failure and damage to the danger bar.
  • Page 34 800mm (32") BFTXD-1200HF 1000mm (40") BFTXD-1200HF 1200mm (48") BFTXD-1500HF 750mm (30") BFTXD-1500HF 1000mm (40") BFTXD-1500HF 1250mm (50") BFTXD-1500HF 1500mm (60") Ground Level ** BFT-750 Trencher Discontinued 34 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...
  • Page 35 Installation and Operating Instructions Trenching Depth (Mini Bigfoot Trencher) To adjust the trench depth on your trencher, you will need to loosen and remove the two 5/8" (15.9mm) nuts and spring washers that hold the skid plate onto the trencher side plate. Then remove the skid plate and rotate it until the two fixed bolts line up with the holes for the trench depth that you require.
  • Page 36 Roll the attachment mechanism forward and slowly back up until the attachment is free from the machine. • Remove and store the attachment in a dry and protected place. Leaving the Digga Trencher outside will materially shorten its life. When the Attachment is Not on a Parent Machine It is the responsibility of the operator that safe systems of work are employed while handling the attachment.

  • Page 37: Maintenance

    Maintenance Before Each Use • Make sure all the nuts and bolts are placed and properly tightened. • Make sure that all other fasteners are in place and are performing their specified function. • Make sure that all hydraulic fittings are tightened and there are no leaks in any fittings or hoses. •...
  • Page 38 The illustrations and data used in this manual were current (according to the information available to us) at the time of printing; however, Digga reserves the right to redesign and change the attachment as may be necessary without notification. 38 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...
  • Page 39 Maintenance Scraper Shoe Replacement • The scraper shoe is designed to be interchangeable,if it gets damaged or a different chain width is fitted to the Trencher. It can be replaced by removing the three nyloc nuts and bolts holding it in place. •...
  • Page 40 Supply from the machine to port A on the hydraulic motor. CAUTION Shut down Trencher & relieve hydraulic pressure on the parent machine before any adjustments are made. 40 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...
  • Page 41 Maintenance NOTE Make sure all gear oil is drained before removing the seal. Seal Replacement • Before the seal can be replaced remove retaining collar and sprocket as shown in sprocket replacement. Then remove the key and seal protector. Use a pin-punch or round pointed awl and tap gently to pierce through the seal face and then lever out the seal (J).
  • Page 42 To achieve the correct chain tension: Adjust the tension on the lower chain section at the midway point between the sprockets to allow 20mm-30mm (0.79" or 1.9") of vertical movement (P). Chain midway point between sprockets 20mm to 30mm (0.79" to 1.18") 42 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...
  • Page 43 Maintenance MBT-900 MINI TRENCHER BFTXD-900 BFTXD-1200 BFTXD-1200HF CHAIN PITCH CHAIN WIDTH & BFT-900 (With 32 Stations) (With 30 Stations) (With 36 Stations) (With 36 Stations) 4" (100mm) • 6" (150mm) • 1.625" 8" (200mm) • (41.28mm) 9" (250mm) 12" (300mm) 6"...
  • Page 44 NOTE For further information on spare parts please contact one of the Digga sales office or your closest authorised Digga dealer. 44 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...
  • Page 45 Planetary Gear Oil Change The Trencher planetary unit is a sealed unit. If any signs of oil leaks are found, please contact your nearest Digga dealer before carrying out any repairs as there can be other causes for seal leaks. The planetary drive unit in the Trencher uses Extreme Pressure Gear Oil - ISO EP320 (mineral oil) for lubrication of gears and bearings.
  • Page 46 Gear oil should be changed when hot, to prevent a build up of sludge deposits. Flush interior of unit with fluid recommended by oil companies. • Check for leaks regularly and if an oil leak is detected contact your nearest Digga dealer for remedy instructions. •...
  • Page 47 NOTE Digga specified ISO EP320 mineral gear oil is specifically for “Extreme Pressure” industrial gearboxes. Oil capacity charts are estimated for a gearbox being filled the first time. When changing the oil, not all oil will drain out, there will always be...
  • Page 48 All work safe practices and procedures must be adhered and • Adjust the chain tension and replace spanner to appropriate PPE must be worn. side of boom (Y). 48 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...
  • Page 49 Maintenance Fitting a Trencher Chain - HYDRIVE / HYDRIVE XD • Start with the Trencher securely attached to a lifting device or machine, ensure the adjustable (AA) boom is fully retracted. (BB) • Place Trencher on the ground, position chain in front of the nose roller with cutting edge of the tooth facing away from the Trencher (AA).

  • Page 50: Troubleshooting

    Dealer). Parent machine not equipped with oil cooler or sufficient sump capacity. Stop and allow to cool naturally when it gets hot. 50 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...

  • Page 51: Spare Parts

    Spare Parts For further information on spare parts, please contact one of the Digga sales offi ces shown below, or contact your local authorised Digga dealer. DIGGA INTERNATIONAL SALES OFFICES ASIA PACIFIC NORTH AMERICA EUROPE DIGGA HEAD OFFICE - BRISBANE...

  • Page 52: Notes: Operator's Manual

    Notes: Operator’s Manual 52 PM-000252 - Operator’s Manual - Bigfoot, Hydrive & Mini Bigfoot Trenchers - May 2022...

  • Page 53: Warranty Statement

    Digga within the time specified above may be deemed waived. Digga will not be responsible for or accept any charges for work carried out by any repairers, or for charges for any spare parts fitted to any Digga products without written approval from Digga.
  • Page 54 PM-000252...

This manual is also suitable for:

Bigfoot xdHydriveHydrive xdMini trenchers

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