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SERVICE MANUAL Issue 3: January 2010 Part No: 4904-0004 F3 Metal Mine Detector

F3 Field Service Manual Page 10 Figure 7: Connecting the Earset ● Switch the F3 on and confirm the Threshold Tone is audible. ● If an earset ‘

F3 Field Service Manual Page 11 ● Decrease the detector sensitivity to minimum by pressing the Θ button five times listening for the longer beep on

F3 Field Service Manual Page 12 - If the test piece is not heard conduct audio reset and repeat the test. - If the test piece is still not heard,

F3 Field Service Manual Page 13 3. Disassembly & Reassembly Procedures 3.1 Introduction. This section describes the procedures required to e

F3 Field Service Manual Page 14 1 8007-0023 UPPER SHAFT BLACK F3 2 9511-0097 WIRING LOOM F3 SHAFT/HANDLE 3 COIL CABLE (PART OF 2021-0054 C

F3 Field Service Manual Page 15 Figure 11: Removal of Wiring Loom from Electronics Pack NOTE Extreme care must be taken when removing the wirin

F3 Field Service Manual Page 16 Figure 12: Correct Fitting of the Wiring Loom into the Electronics Pack NOTE Take great care when connecting

F3 Field Service Manual Page 17 3.4 Coil. Figure 14 illustrates the major parts involved in removing and replacing the coil. 3004-0003 COI

F3 Field Service Manual Page 18 Figure 16: Removing the Coil Retainer ● Lift the lower shaft with lower camlock assembly out of th

F3 Field Service Manual Page 19 NOTE Once a coil pin is fitted to a coil cable, it is not necessary to fit a coil plug retainer. ● Connect the c

F3 Field Service Manual Page 2 WARNING THIS DOCUMENT CONTAINS MINELAB ELECTRONICS LIMITED RIGHTS TECHNICAL DATA OR RESTRICTED RIGHTS DAT

F3 Field Service Manual Page 20 NOTE It is important that the curly cable or coil cable pull through is not twisted, as this will change the number

F3 Field Service Manual Page 21 Figure 23: Fitting the Coil Retainer ● Reconnect the electronics pack to the coil cable as described in Section

F3 Field Service Manual Page 22 ● Remove the top half of the speaker pod by lifting the pod gently upward until the speaker pod plug comes clear of

F3 Field Service Manual Page 23 Figure 27: Fitting Speaker Pod onto Handle ● Ensure the wiring loom plug emerges from the handle into the speak

F3 Field Service Manual Page 24 ● Refit the three (or five depending on speaker pod version) screws (Part 5) which hold the pod halves together. ●

F3 Field Service Manual Page 25 b. To assemble the handle: ● Position the right handle half onto the upper shaft. ● Lay the wiring loom into the

F3 Field Service Manual Page 26 Figure 33: Recess for Earset Plug Dustcap ● Carefully fit the left handle half to the right handle half and upp

F3 Field Service Manual Page 27 5 COIL PLUG (PART OF 2021-0054 COIL F3) 6 3004-0036 ELECTRONICS PACK KIT SVC F3L 6 3004-0001 ELECTRONICS PACK

F3 Field Service Manual Page 28 To remove the split grommet, use fingers to open the split wide enough for the ribbon cable to slide through. ● Ge

F3 Field Service Manual Page 29 Figure 38: Correct Fitting of the Wiring Loom into the Electronics Pack NOTE Take great care when connecting

CONTENTS Section Page 1. Introduction 4 2. Mechanical & Functional Testing 5 2.1 Mechanical Testing 6 2.2 Func

F3 Field Service Manual Page 30 ● Route the wiring loom around the cable router on the side of the bulkhead cover. (Figure 41) Figure 41: Wiri

F3 Field Service Manual Page 31 3.8 Armrest. Figure 42 illustrates the major parts of the armrest 8013-0002 ARMREST ASSEMBLY F3 1 4002-0023

F3 Field Service Manual Page 32 c. To refit the armstrap use Figure 43 as a guide: Figure 43: Lacing the Armstrap (View from Coil) 3.9 Shafts.

F3 Field Service Manual Page 33 3004-0011 CAMLOCK KIT LOWER SHAFT F3 1 8007-0022 CAMLOCK BODY LOWER F3 2 8008-0031 PRESSURE BLOCK LOWER F3

F3 Field Service Manual Page 34 2 8008-0005 CAM LEVER F3 3 8008-0030 WEAR PLATE F3 4 8008-0024 PRESSURE BLOCK MIDDLE CAMLOCK F3 5 4308-0003

F3 Field Service Manual Page 35 Figure 48: Upper Camlock Positioned on Upper Shaft ● Place the tail of the upper pressure block into the recess

F3 Field Service Manual Page 36 e. To reassemble the middle camlock assembly: ● Using Figure 50 as a guide, attach the two collar shafts (Part 3)

F3 Field Service Manual Page 37 Figure 51: Reassembling Middle Camlock Assembly ● Slide the middle shaft all the way into the upper shaft and

F3 Field Service Manual Page 38 ● Holding the detector and lower camlock assembly upside down (to prevent the lower pressure block falling out) sli

F3 Field Service Manual Page 39 3.10 Battery Pack. The battery pack is a line replaceable unit and is not normally disassembled for repair. The m

F3 Field Service Manual Page 4 1. Introduction a. Servicing the F3 Series of detectors comprises fault finding, repair and maintenance and is desi

F3 Field Service Manual Page 40 4. Fault Finding Procedures 4.1 Introduction. A functional test failure (Section 2.2) can generally be repaired

F3 Field Service Manual Page 41 On switch on, the “Coil Fault” tone occurs - “low pitched double tone every five seconds” ● check the coil plug is

F3 Field Service Manual Page 42 ON/OFF slide is very difficult to move ● disassemble handle and remove dust and dirt Armrest will not move ● loose

F3 Field Service Manual Page 5 2. Mechanical & Functional Testing Figure 1: F3 Packed in its Hard Case a. Whenever a detector is returne

F3 Field Service Manual Page 6 2.1 Mechanical Testing. Confirm that all components are present in the hard case and unpack, fully extend and inser

F3 Field Service Manual Page 7 b Switch ON Test. The Switch ON Test checks that power is correctly supplied to the electronics pack and internal d

F3 Field Service Manual Page 8 ● During the 45 seconds, the detector scans the environment searching for the source of any electrical interference.

F3 Field Service Manual Page 9 ● Slowly move the ground balance test piece from approximately 150mm (6ins) above the centre of the coil towards the