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Commercial in confidence

Smartfind EPIRB service manual

Page 35

5. REPAIR PROCEDURES

Repair policy for this EPIRB is repair by replacement of major sub-assemblies.
Component level diagnosis and repair is not supported.
The PCB can be inspected for dry joints.

The principal repair activity is the replacement of the circuit board.
Full instructions for this can be found in section 3.5 Disassembly and 3.7
Reassembly.

Other than this, repair is limited to replacing those parts of the EPIRB which have
suffered mechanical wear and tear.

Spare parts for these purposes are listed in section 6.

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Содержание G5

Страница 1: ...mcmurdo mcmurdo mcmurdo mcmurdo E5 G5 E5 G5 E5 G5 E5 G5 EPIRB EPIRB EPIRB EPIRB Service Manual Service Manual Service Manual Service Manual ...

Страница 2: ......

Страница 3: ...pendix 1 Specification 37 Appendix 2 IMO recommendations 37 Disclaimer McMurdo is a brand name operated by Signature Industries Limited The information and illustrations contained in this publication are to the best of our knowledge correct at the time of going to print We reserve the right to change specifications equipment installation and maintenance instructions without notice as part of our p...

Страница 4: ...Commercial in confidence Smartfind EPIRB service manual Page 2 ...

Страница 5: ...omputes the position of the EPIRB The vessels flag state and the vessel identity or unit serial number is programmed into the EPIRB as part of the 406MHz transmission thus making the EPIRB unique Transferring an EPIRB to another vessel either involves re programming or re registration The product is non hazardous for transportation It is available with either a carry safe manual bracket or auto re...

Страница 6: ...nk for sea switches Battery discharge load made on site as required Handtools Calibrated torque driver 0 6 Nm with attachments 7mm A F socket M4 Small cross headed screwdriver Large cross headed screwdriver Antistatic precautions The electronics section of the EPIRB is sensitive to electrostatic discharge ESD which can cause immediate or hidden long term damage It is important that the PCB is only...

Страница 7: ...ons IPA Irritation highly flammable Avoid contact ventilate well Lithium batteries Hazardous chemicals Wear gloves The batteries used in these products contain Lithium Li Lithium is flammable reacts violently with water and constitutes a biological hazard These batteries are hazardous if short circuited punctured incinerated or deformed Lithium batteries must not be short circuited Lithium batteri...

Страница 8: ...chemical agents adhesives greases IPA Observe all safety precautions relevant to the country of operation As a general rule protective overalls gloves and goggles should be worn when handling these chemical agents but different countries may have additional requirements which must be observed Ensure that all chemical agents are handled in accordance with the manufacturer s instructions and that su...

Страница 9: ...his occurs 1 Deactivate the EPIRB see below 2 The rescue services must be informed that there has been a false alarm Use any means available to contact the coastguard or the nearest Maritime Rescue Coordination Centre MRCC state that there has probably been a false alarm identify the location of the EPIRB and if possible give the EPIRB ID De activating a live EPIRB Remove the EPIRB from any water ...

Страница 10: ...Commercial in confidence Smartfind EPIRB service manual Page 8 ...

Страница 11: ...ng HRU replacement Fault diagnosis and repair GPS Test 2 2 Routine testing An EPIRB should be tested monthly by its owner to ensure functionality Regular testing is essential The EPIRB should be inspected for mechanical damage at the same time An EPIRB fitted to a GMDSS compliant vessel is recommended to undergo an inspection at yearly intervals and shore based maintenance every 5 years maximum To...

Страница 12: ...n of the form records the customer the EPIRB and the reason for return as Customer comments It is essential to record the identity details from the EPIRB rear label as these will be necessary for comparison with the transmitted data The expiry date must be noted if less than 6 months life remains a battery change should be recommended to the customer Opening the EPIRB for internal inspection is on...

Страница 13: ...Sea switch contacts Comments FUNCTIONAL TEST Sea Switch ON within 3 seconds OFF with magnet in 8s Does not activate with magnet Self test LED on Buzzer Strobe 3 flashes Live mode LEDs buzzer on Strobe consistent Switches off GPS Test Pass Comments MESSAGE READ ID OK Country MMSI Call sign Serial no 406 frequency OK Man Serial No EPIRB No Auto Man Comments INTERNAL INSPECTION Required optional Batt...

Страница 14: ...nclosure Autocover If this has been returned check it as follows Cover intact Ensure offset weight is secure Check cover retaining pin is present and attached to cover Confirm identity label on side agrees with rear of EPIRB Lever arm Check magnet present Release HRU press down and slide upward Confirm lever arm moves freely and is secure HRU expiry date Side of HRU should be marked with expiry da...

Страница 15: ... shall be firmly attached to hole in rear of EPIRB Bobbin should clip into rear of EPIRB and remain in place Sea Switch Check that the sea contacts are clean and free from paint or grease Clean with a soft brush and IPA if necessary Plastic damage Check plastic body for signs of cracking or wear Check clear lens dome for cracking especially around screws Water ingress Check if water or water vapou...

Страница 16: ... is recommended that any unit which has a reduced number of LED flashes should have the battery replaced in order to ensure that the unit will operate for 48 hours in an emergency Note The 121 5MHz transmission made during self test is unmodulated Therefore it will not be picked up by the ARG5410 Mk1 message reader or by an air band radio receiver The self test inherently checks the 121 5 and 406 ...

Страница 17: ...d LEDs lights and the buzzer sounds 4 Return the switch to the OFF position to switch the EPIRB off This must be done within 50 seconds to avoid a live transmission If the red LED starts to flash you have made a live transmission Note that if a unit does not switch off then it may be due to sticking reed switch If this is the case then a small tap onto a hard surface may release the contacts NOTE ...

Страница 18: ... Test was successful the Smartfind Plus will start the Long GPS Self Test mode The buzzer will sound twice the red LED will stay lit and the green LED will begin to flash The TEST button may be released at this point 3 This test takes 15 minutes to complete During this time do not shield the EPIRB and do not stand over it 4 If the GPS receiver acquires a position the green LED will light continuou...

Страница 19: ... EPIRB rear identity label UIN This proves the 406MHz transmitter is modulating correctly and the EPIRB is programmed with the correct identity If the ARG5410 is not used then another facility for message decoding must be provided other message readers 9 Confirm the Flag state and the Serial No MMSI Callsign agrees Typical screen Q 11 25 Mesg 11 S TEST OK ID 9D0D071D3B00013 406 0257 MHz PASS Commo...

Страница 20: ...s and body for signs of levering with screwdrivers Inspect antenna for sharp bends which indicate the EPIRB has been dropped With dome removed If there is a pungent smell then suspect that one of the Lithium battery packs have leaked See section 1 4 for advice Wear rubber gloves Damaged lithium batteries may be unstable and pose a serious safety hazard Leakage usually damages circuit boards so it ...

Страница 21: ...ding removal 1 Invert unit and using large posi driv screwdriver remove 3 off screws and washers 2 Carefully pull the dome moulding vertically clear of the bottom moulding being careful not to damage the PCB The PCB is located in guides in bottom moulding 3 Disconnect the 3 OFF battery packs by unplugging on the PCB 4 Remove the sealing o ring from the dome and discard ...

Страница 22: ...the nyloc nut securing the PCB to the antenna 2 Slide out PCB noting the guides in the dome moulding NOTE Take care not to damage the sea switch contacts on the PCB while it is removed from the moulding 3 Remove the silica gel pack from the rear of the circuit board and store the board under anti static conditions 4 The antenna can now be pulled out of the dome Remove and discard the small o ring ...

Страница 23: ...and weight Retain the weight discard the foam pad 5 If the battery is not being replaced check the voltage Each of the 3 packs must be 9 0V If any of the 3 battery packs are under voltage then all 3 must be replaced Take care not to short circuit the batteries NOTE The unit will operate with any one of the 3 batteries fitted 6 Inspect the RF coating on the inside of the plastic moulding if there h...

Страница 24: ...dated after a battery change If the circuit board is replaced the EPIRB must have its identity reprogrammed Advise customer that unit may need to be re registered and the old unit de registered a Fit battery 1 Fit metal weight then foam pad in bottom of plastic 2 Insert battery and battery clamp Push battery fully down 3 Fit 2 off no 4x11 pozi pan screws and tighten to 60cNm It is advisable to sta...

Страница 25: ...e plastic Refit the retaining nut and torque to 60cNm It is very important to ensure that this is tightened correctly because this is the connection to the antenna for the RF transmissions 3 Fit new o ring onto dome moulding 4 Re connect battery connectors 3 off The order position is not important 5 Ensure that the magnet is fitted and correctly seated in the switch slider 6 Ensure that the switch...

Страница 26: ...re assembly 9 Note that there will be an approximate 3mm gap between the dome moulding and base moulding prior to fitting the screws Refit the 3 off M4x12 posi pan screws and washers Tighten evenly to 60cNm 10 Carry out a leak test and full functional test including sea switch and ON test 11 If battery has been replaced then reset Battery life counters and ensure new expiry dates are fitted ...

Страница 27: ...e screw holes etc 4 For the next 5 minutes rotate the EPIRB and check for any escaping bubbles 5 If there is any sign of water ingress remove EPIRB quickly 6 Remove EPIRB from water wipe thoroughly dry Note that there will still be water under the outer edge of the dome inside the outer clear plastic edge but outside the waterproof seal 7 Refit the lanyard Any escape of bubbles must be corrected D...

Страница 28: ...omply with IMO regulations Replacement batteries are supplied as a kit see spares list The kit includes a new o ring and silica gel bag The kit also includes two new expiry date labels one for the auto cover fit supplied expiry label over ident label then place sealing label over to protect and one for the EPIRB The expiry date is marked on the body of the EPIRB and also on the identification labe...

Страница 29: ...onal test as section 3 2 9 Message read as per section 3 3 and compare to Identity Label 10 Fit the second expiry date label over the date on the enclosure side label if applicable Fit sealing label over the date label to protect it Battery disposal Hazardous chemicals Use gloves Lithium battery packs should be discharged slowly then disposed of through an approved environmental disposal agent or ...

Страница 30: ...SB pen into the USB port of the computer 2 Open Smartfind Factory Reset software program 3 Select the com port 4 Press Reset Beacon 5 Ensure Tx LED flashes on side of pen 6 Hook the pen into position on the EPIRB 7 Press and release the TEST button on the EPIRB 8 The red Reset in progress and yellow IR link active indicators will light 9 The EPIRB will emit a number of beeps to indicate reset in p...

Страница 31: ...ve the R clip and pull the cover slowly off 2 Remove the EPIRB and stow it in a dry place It will activate if wet 3 Push down the lever arm to take up the force of the spring 4 Push the HRU back then upwards out of the slot in the lever arm 5 When the rear clip disengages slowly release the lever arm 6 The HRU with its breakable rod can now be lifted free and replaced 7 Locate the new HRU complete...

Страница 32: ...or GPS units the GPS position will not be very accurate The identity is stored in non volatile memory EEPROM on the circuit board Disconnecting the battery will not affect it however fitting a new circuit board will When to reprogram The EPIRB should be reprogrammed in the following situations The EPIRB is transferred to a new vessel with a different country code The vessel changes flag state new ...

Страница 33: ...he EPROG5 software includes a disk based handbook giving full instructions for the process These instructions are not repeated here Service agents are expected to have a programming kit IMPORTANT The following things must be done when an EPIRB is re programmed 1 Verify correct programming using a message reader See section 3 3 2 Print a new registration form at the PC and pass it to the EPIRB owne...

Страница 34: ...Commercial in confidence Smartfind EPIRB service manual Page 32 4 FAULT FINDING Test Switch Battery Connectors Firmware IC ...

Страница 35: ...Commercial in Confidence Smartfind EPIRB service manual Page 33 GPS antenna Strobe LED Sea contact Buzzer Silica Gel bag Sea Contact ...

Страница 36: ...Commercial in confidence Smartfind EPIRB service manual Page 34 ...

Страница 37: ... repair is not supported The PCB can be inspected for dry joints The principal repair activity is the replacement of the circuit board Full instructions for this can be found in section 3 5 Disassembly and 3 7 Reassembly Other than this repair is limited to replacing those parts of the EPIRB which have suffered mechanical wear and tear Spare parts for these purposes are listed in section 6 ...

Страница 38: ... and e clip washer Battery kit 82 970A McMurdo Includes batteries clamp desiccant bag labels and seals Sealing kit 82 971A All Main o ring Antenna o ring and securing screws GPS G5 PCB 82 972A G5 Includes PCB antenna o ring and main o ring Non GPS E5 PCB 82 973A E5 Includes PCB antenna o ring and main o ring Antenna Kit 82 974A All Includes antenna antenna o ring and main o ring E5 Label kit 82 97...

Страница 39: ...g of 406MHZ satellite EPIRBs Dated 28 May 2002 Further details on how to comply with the current regulations are available from McMurdo website or Customer Service NOTE Please also note that the introduction by IMO of the EPIRB Shore Based Maintenance scheme IMO circ 1039 means that the only companies approved to carry out the 5 year full battery replacement must be officially certified by the EPI...

Страница 40: ... of Signature Industries Ltd Silver Point Airport Service Road Portsmouth PO3 5PB United Kingdom Phone 44 0 23 9262 3900 Fax 44 0 23 9262 3998 Email customerservice mcmurdo co uk Website www mcmurdo co uk 82 992 Issue 2 ...

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