Minelab F3 Service Manual
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Minelab F3 Service Manual

Minelab F3 Service Manual

Metal mine detector
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F3 Metal Mine Detector
LEVEL 1 MAINTENANCE
Issue 1.4 4th February, 2005
Part No: 4904-0003

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Summary of Contents for Minelab F3

  • Page 1 F3 Metal Mine Detector LEVEL 1 MAINTENANCE Issue 1.4 4th February, 2005 Part No: 4904-0003...
  • Page 2 F3 Field Service Manual – Level 1 Maintenance WARNING THIS DOCUMENT CONTAINS MINELAB ELECTRONICS LIMITED RIGHTS TECHNICAL DATA OR RESTRICTED RIGHTS DATA OR BOTH. © Minelab Electronics This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part...

  • Page 3: Table Of Contents

    PAGE Introduction ........................4 1.1. Levels Of Maintenance .....................4 1.2. How To Use This Manual ..................4 Level 1 Maintenance Mechanical And Functional Testing Of The F3 ..............6 2.1. Mechanical Testing....................6 2.2. Functional Testing ....................7 Disassembly And Reassembly Procedures ..............12 3.1. Speaker Pod......................12 3.2.

  • Page 4: Introduction

    1.2. HOW TO USE THIS MANUAL If doubt exists as to the mechanical integrity or performance of the F3, turn to Section 2 for comprehensive mechanical and functional testing of the F3. If any mechanical component (eg armrest, coil) of the F3 requires replacement, Section 3 details Disassembly and Reassembly Procedures.

  • Page 5: Level 1 Maintenance

    F3 Field Service Manual – Level 1 Maintenance LEVEL 1 MAINTENANCE Page 5...

  • Page 6: Mechanical And Functional Testing Of The F3

    F3 should be on hand (or a range of serviceable spare parts). After any repair to the F3, Section 2.2 Functional Testing must be repeated in full to ensure the F3 is fully serviceable before being returned to operational use.

  • Page 7: Functional Testing

    This section details functional testing of the F3. It should be used to confirm serviceability of an F3 before it is returned to the field for use and whenever doubt exists about the serviceability of an F3. The F3 must pass all these tests to be considered serviceable.
  • Page 8 • During the 45 seconds, the detector scans the environment searching for the source of any electrical interference. Once detected, the F3 will automatically select a different operating frequency to eliminate or reduce the interference. •...
  • Page 9 F3 Field Service Manual – Level 1 Maintenance • Move the Ground Balance Test Piece from approximately 150mm (6ins) above the centre of the coil slowly towards the centre of the coil, no response should be heard. • If a response is still heard, repeat this procedure, if there is still a response, go to Section 4.4 for faultfinding procedures.
  • Page 10 F3 Field Service Manual – Level 1 Maintenance 2.2.5. Test Piece Test Note: Ensure the operator’s hands and arms are free of metallic objects (watches, rings etc), and that no other metallic objects are near the coil. Maximum sensitivity is only available 30 seconds after the threshold tone is heard. Do not test the detector with the Test Piece until 30 seconds after the threshold tone is heard.
  • Page 11 F3 Field Service Manual – Level 1 Maintenance 2.2.7. Earset Test • Plug the earset into the detector as follows: Undo the dustcaps from the Earset plug and Earset socket on the detector. As shown in the following figure, gently hold the Earset plug...

  • Page 12: Disassembly And Reassembly Procedures

    F3 Field Service Manual – Level 1 Maintenance DISASSEMBLY AND REASSEMBLY PROCEDURES Minelab F3 Tool Kit (Minelab Part No 3004-0018) is required for these procedures. The kit comprises: Minelab Part No Description 0005-0006 Silicon Grease (100g tube) 0005-0010 Silicon Sealant (75g tube) 8701-0009 Tubular Spanner 7/8”...
  • Page 13 F3 Field Service Manual – Level 1 Maintenance • Remove the top half of the speaker pod – lift the pod gently upward and disconnect the speaker pod plug from the main wiring loom. Support the main wiring loom socket against the lower half of the speaker pod when disconnecting the speaker pod plug.
  • Page 14 F3 Field Service Manual – Level 1 Maintenance • Refit the lower half of the speaker pod. The tongue at the front top of the handle should be inserted into the recess in the lower half of the speaker pod.

  • Page 15: Handle

    Figure 13 Handle Exploded View 8013-0001 HANDLE ASSEMBLY F3 4002-0039 NUT M4 HEX SS 3004-0016 RIGHT HANDLE HALF (part of HANDLE L+R KIT F3) 3004-0016 LEFT HANDLE HALF (part of HANDLE L+R KIT F3) 4002-0038 NUT STANDARD SS F3 4309-0037...
  • Page 16 F3 Field Service Manual – Level 1 Maintenance 3.2.2. Handle Reassembly: • Position the right handle half onto the upper shaft. • Locate the main wiring loom into the correct slots in the right handle half. Starting from the main body of the main wiring loom, lay the cable into the cable channels.
  • Page 17 F3 Field Service Manual – Level 1 Maintenance Note: Hold the handle together tightly until the first two bolts have been fitted otherwise the internal nut or main wiring loom may become dislodged. The four bolts should initially only be done up loosely.

  • Page 18: Armrest

    F3 Field Service Manual – Level 1 Maintenance 3.3. Armrest 3.3.1. Armrest Disassembly: Figure 18 Armrest Exploded View 8013-0002 ARMREST ASSEMBLY F3 4002-0039 NUT M4 HEX SS 4003-0080 BOLT M4X30 SKT SS 4308-0003 CAMLEVER PIVOT PIN 3004-0015 LEFT ARMREST HALF (part of ARMREST L+R F3)
  • Page 19 F3 Field Service Manual – Level 1 Maintenance • The wear plate can now be replaced if required. Glue the new wear plate into the pressure block with a small drop of super-glue, allow the super-glue to dry before reassembly.
  • Page 20 F3 Field Service Manual – Level 1 Maintenance 3.3.2. Armrest Reassembly: • Position the right half of the armrest onto the upper shaft. • Fit the armrest pressure block, cam lever pivot pin and cam lever into the right armrest half.

  • Page 21: Electronics Pack

    F3 Field Service Manual – Level 1 Maintenance 3.4. Electronics Pack 3.4.1. Electronics Pack Removal: • Remove battery pack and sensitivity endcap. Figure 22 Electronics Pack Removal, Exploded View 8007-0023 UPPER SHAFT BLACK F3 9511-0023 WIRING LOOM F3 SHAFT/HANDLE COIL CABLE (part of 2021-0054 Coil F3)
  • Page 22 F3 Field Service Manual – Level 1 Maintenance Note: Extreme care must be taken when unplugging the main wiring loom plug. • Carefully unplug the main wiring loom from the main PCB inside the electronics pack. Figure 24 Removing the Main Wiring Loom Plug (orange arrow) •...
  • Page 23 F3 Field Service Manual – Level 1 Maintenance 3.4.2. Electronics Pack Disassembly: Plug retaining nut Figure 25 Electronics Pack Exploded View 3004-0001 ELECTRONICS PACK KIT SVC BLACK F3 4005-0045 WASHER BAYONET EP F3 8008-0027 LEVER BAYONET EP F3 4003-0078 SCREW M3X16 POSI SS...
  • Page 24 • Slide the housing over the PCB against the O-ring on the electronics pack rear panel (F3 logo towards front of the detector). Refit the four screws securing the housing to the electronics pack rear panel. Ensure that these screws are done up evenly otherwise the O-ring in the electronics pack rear panel may be damaged.
  • Page 25 F3 Field Service Manual – Level 1 Maintenance 3.4.4. Electronics Pack Refit: • Clean all silicon sealant from the coil socket thread and coil plug. • Slide the electronics pack on to the upper shaft until the coil socket is within 10cm (4ins) of the end of the upper shaft.
  • Page 26 F3 Field Service Manual – Level 1 Maintenance Figure 29 Electronics Pack showing Main Wiring Loom in cut out (orange) and Ribbon Cover (blue), Split grommet (red) and Bulkhead Cover (green) on Main Wiring Loom • Ensure that the ribbon cable cover, split grommet and bulkhead cover are threaded on the main wiring loom (in that order).
  • Page 27 F3 Field Service Manual – Level 1 Maintenance • Ensure that the keyway on the main wiring loom plug is towards the bottom of the electronics pack then plug the main wiring loom into socket on the main PCB inside the electronics pack.
  • Page 28 F3 Field Service Manual – Level 1 Maintenance • If required, slide the split grommet over the thickened section of the main wiring loom cable and position the split grommet (over thickened section) into the bulkhead cover. Figure 32 Split grommet (red arrow) over thickened area of main wiring loom (yellow) •...

  • Page 29: Coil

    F3 Field Service Manual – Level 1 Maintenance 3.5. Coil 3.5.1. Coil Removal: • Retract the shafts. • Remove Electronics pack (Section 3.4.1 Electronics Pack Removal – the coil plug is disconnected during this procedure). Figure 34 Coil Exploded View...
  • Page 30 F3 Field Service Manual – Level 1 Maintenance • Using the 6.5mm screwdriver, carefully lever the coil retainer cover (1) off the coil top and remove it. Figure 37 Removing the Coil Retainer • Remove the lower shaft with lower camlock assembly from the coil top.
  • Page 31 F3 Field Service Manual – Level 1 Maintenance • Curl or loosen the cable as required to ensure that there are 52 turns (+/- 0) in the coil cable curly section. Figure 40 Ensure that the coil cable has exactly 52 turns •...
  • Page 32 F3 Field Service Manual – Level 1 Maintenance • Position the two tabs at the rear of the coil retainer cover into the cut-outs in the rear of the coil top. Pivot the front of the coil retainer cover down towards the coil top.
  • Page 33 F3 Field Service Manual – Level 1 Maintenance • Pull the coil plug clear of the shaft, fit the coil plug retainer and disconnect the coil cable pull through. Figure 46 Fitting the Coil Plug Retainer • Refit the electronics pack (Section 3.4.4 Electronics Pack Refit - the coil plug is reconnected during this procedure).

  • Page 34: Shafts

    F3 Field Service Manual – Level 1 Maintenance 3.6. Shafts Note: The following procedure details shaft disassembly/assembly and should be followed in order until the component to be replaced is accessible. Upper Camlock Assembly Middle Camlock Assembly Upper Shaft Yoke and Lower...
  • Page 35 F3 Field Service Manual – Level 1 Maintenance • Remove the friction blocks from either side of the lower camlock body. Figure 50 Lower Camlock Body with Friction Blocks on and off • Use the 3mm T handle hex driver to push out the two lower camlock pins (5), one secures the lower camlock body to the lower shaft and the other holds the lower cam lever in place.
  • Page 36 F3 Field Service Manual – Level 1 Maintenance Middle camlock and shaft Upper Shaft Middle Shaft Figure 52 Middle Camlock Assembly Exploded View 3004-0012 CAMLOCK KIT MIDDLE SHAFT F3 8008-0023 CAMLOCK BODY MIDDLE F3 8008-0005 CAM LEVER F3 8008-0030 WEAR PLATE F3...
  • Page 37 8008-0021 CAMLOCK BODY UPPER F3 8007-0023 UPPER SHAFT BLACK F3 (not part of Camlock Kit) Figure 56 Upper Camlock Kit Parts List • Use the 3mm T handle hex driver to push out the cam lever pivot pin from the upper camlock.
  • Page 38 F3 Field Service Manual – Level 1 Maintenance 3.6.2. Shafts Reassembly: Upper camlock • Refit the upper camlock body to the upper shaft, ensuring that that the square hole in the camlock is aligned with the cut-out in the upper shaft.
  • Page 39 F3 Field Service Manual – Level 1 Maintenance Middle camlock and shaft Upper Shaft Figure 60 Fitting the Middle Shaft 3004-0008 MIDDLE SHAFT KIT SVC BLACK F3 3004-0012 CAMLOCK KIT MIDDLE SHAFT F3 (not shown – see next figure) 8007-0024...
  • Page 40 F3 Field Service Manual – Level 1 Maintenance • Slide the middle shaft into the rear of the upper shaft, square hole facing down. Upper Shaft Middle Shaft Figure 63 Middle Camlock Assembly Exploded View 3004-0012 CAMLOCK KIT MIDDLE SHAFT F3...
  • Page 41 F3 Field Service Manual – Level 1 Maintenance Place the tail of the middle pressure block into the recess in the front of the middle camlock body and push the block into the square hole. Refit the cam lever and cam lever pivot pin.
  • Page 42 F3 Field Service Manual – Level 1 Maintenance • Slide the lower shaft through the upper/middle shafts, protruding section at front of the lower shaft uppermost. Lower Shaft Upper Shaft Insert Lower Shaft this way Middle Shaft Figure 67 Inserting the Lower Shaft •...
  • Page 43 F3 Field Service Manual – Level 1 Maintenance • Refit the friction blocks to the lower camlock body. Figure 70 Refit the Friction Blocks • Refit the Coil and Electronics pack, (Section 3.5.2 Coil refit and Section 3.4.4 Electronics Pack Refit).

  • Page 44: Battery Pack

    HOUSING BP BLACK F3 0703-0126 BATTERY TUBE BP F3 0703-0079 CAP FRONT BP F3 3004-0005 RIVET (part of TETHER WITH RIVET KIT SVC BP F3) 0705-0015 PANEL ASSY LID BP F3 (BATTERY PACK LID) 0703-0098 FACEPLATE CAP FRONT BP F3 4003-0079...
  • Page 45 4003-0073 SCREW NO 4X16 POSI SS 4005-0061 WASHER 5904-0085 PCB LID BP F3 3004-0005 TETHER (part of TETHER WITH RIVET KIT SVC BP F3) 4309-0047 O-RING 50MM BP LID F3 0304-0018 LID BP F3 4309-0038 O-RING 11MM BP LID F3...
  • Page 46 F3 Field Service Manual – Level 1 Maintenance Rear Cap • Remove the four screws from the rear cap and remove the rear cap from the battery pack housing. Socket Retaining Nut (part of item 5). Figure 76 Battery Pack Rear Lid Exploded View...
  • Page 47 4003-0073 SCREW NO 4X16 POSI SS 4005-0061 WASHER 5904-0085 PCB LID BP F3 3004-0005 TETHER (part of TETHER WITH RIVET KIT SVC BP F3) 4309-0047 O-RING 50MM BP LID F3 0304-0018 LID BP F3 4309-0038 O-RING 11MM BP LID F3...
  • Page 48 F3 Field Service Manual – Level 1 Maintenance Figure 81 Battery Pack Lid Tether Assembly, nylon washer (yellow arrow) • Slide the tether through the slot in the front of the front cap. Fit the rivet into the hole at the end of the tether and push the pin fully into the rivet.
  • Page 49 F3 Field Service Manual – Level 1 Maintenance Figure 84 Ensure that the Tether is between the Battery Tube and Housing • Fit the faceplate (over the lid) to the front cap and insert the four screws. Ensure that these screws are done up evenly otherwise the O-ring in the rear of the front cap may be damaged.
  • Page 50 F3 Field Service Manual – Level 1 Maintenance Figure 87 Fully Assembled Battery Pack Rear Cap • Fit the fully assembled rear cap onto the housing, ensure that the over- current sensor is between the battery tube and housing. Figure 88 Ensure that the over-current sensor is between the battery tube and housing (yellow arrow) •...

  • Page 51: Faultfinding Procedures

    So a complete and serviceable F3, or a range of parts should always be on hand to conduct these faultfinding procedures. When a faulty component is identified, replace it using the Disassembly and Reassembly procedures at Section 3.

  • Page 52: Alarm Tone Faultfinding

    F3 Field Service Manual – Level 1 Maintenance Alarm Tone Faultfinding • If the detector does not sound an alarm tone when the red endcap is fitted or removed whilst the detector is switched on, the problem may be either the red endcap or the electronics pack.

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