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BUOYANCY COMPENSATOR OWNER'S MANUAL
JT-30D single tank BCD
JT-31D single tank BCD
JT-40D single tank BCD
JT-41D single tank BCD
JT-50D twin tank BCD
JT-51D twin tank BCD
JT-65 EXP. double-bladder twin tank BCD
JT-65 EXP. double-bladder twin tank BCD
EN1809
0120
JT-30H single tank BCD
JT-31H single tank BCD
JT-40H single tank BCD
JT-41H single tank BCD
JT-50H twin tank BCD
JT-51H twin tank BCD
Ver. E991019H
CONTENTS
................................................ ..................1
................................................ ..................2
Back plate ..................................................................... ......3
Harness ............................................................................... 4
Crotch strap ........................................................................ 5
Air cell .............................................................................. 5
Single tank adaptor and tank cam bands ................................... 7
Stainless steel twin tank bands ................................................ 7
Weight pocket ....................................................................... 8
Back plate pouch (and fitting hardware) .................................... 8
BCD handle ........................................................................ 9
Basic harness back plate system ............................................. 9
Deluxe harness back plate system ........................................... 14
Harness adjustments ........................................................ ....21
Weight pocket installation....................................................... 21
Attaching wing and tank adaptor for single tank BCD ................ 22
Attaching your single tank BCD to a scuba tank...........................24
Wing and tank attachment for twin tank BCD ............................. 26
Back plate pouch and fitting hardware ...................................... 30
BCD handle .................................................... ................... 31
.................................................................32
Power inflator ...................................................................... 32
Attaching low pressure inflator hose ......................................... 33
Using the weight pockets ......................................................... 33
Over-pressure exhaust valve .................................................. 34
Donning the BCD ................................................................. 34
Taking off the BCD ......................................................... .......35
BCD care and storing ............................................................ 35
......................................................................36
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Summary of Contents for IST Dolphin Tech JT-30D
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Page 1: Table Of Contents
CONTENTS I. INTRODUCTION ……………………………….……….. ………………1 II. GENERAL WARNINGS AND CAUTIONS …….………... 1 Definition of WARNING, CAUTION and ATTENTION III. BCD FEATURES ……………………………….……….. ………………2 Back plate …………………………………………………………... ……3 Harness ……………………………………………………………..4 Crotch strap ……………………………………………………………… 5 Air cell …………………………………………………………………... 5 Single tank adaptor and tank cam bands …………………………….. 7 Stainless steel twin tank bands …………………………………….….. -
Page 2: Introduction
Tel: +886 2 26272516 / Fax: +886 2 26599056 III. BCD features IST technical diving equipment is modular and so our BCDs come in various combinations. Below is a quick reference table of for our standard products and some explanations of their main features: II. -
Page 3: Back Plate
This setup is simple and bomb-proof in terms of reliability and simplicity. HB2 – Deluxe harness IST’s deluxe harness is made from the same webbing as the basic harness but with additional convenient and comfort features. shoulder... -
Page 4: Crotch Strap
CROTCH STRAP Item no.: HB-3 Made from softer nylon webbing, IST technical BCD crotch strap is 2” wide but is comfortable to use. The abdomen end of the strap has a pre-sewn loop for the ease of installation. Comes complete with D-rings and webbing keepers. -
Page 5: Weight Pocket
14” or 16” long assembly. – please contact your local IST dealer for more information. weight pocket will be stable and not flap around. It is designed to hold up to 7kg (15lb) of weight each. -
Page 6: Bcd Handle
Depending on your local / regional distributor, your BCD package may not contain all parts or may include different components described within. Please check your nearest authorized IST retailer if you have question with regard to your equipment. Before commencing BCD assembling, please read and understand the manual so the best procedures can be followed. - Page 7 Insert one end of the basic harness webbing from the back through the angled slot Thread one end of the webbing through an opening of a WK-4 webbing keeper, then a near the top of the plate (see Pic. 1) then continue on through the adjacent top slot DR-1 bent D-ring and finally back through the WK-4 webbing slide’s other opening (from the front of the plate –...
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Page 8: Deluxe Harness Back Plate System
Lastly, thread the same end through the back plate’s bottom horizontal slot with the D-ring facing backward (Pic. 19) then back through the WK-4 keeper (both slots – Pic. 20) to Thread the webbing through an opening of a WK-4 webbing keeper, then a DR-2 flat complete the basic harness assembly. - Page 9 Insert one end of the nylon connecting webbing from the back through the angled slot near the top of the plate (see Pic. 1) then continue on through the adjacent top slot (from the front of the plate – see Pic. 2). Pic.
- Page 10 Thread the webbing through an opening of a WK-4 webbing keeper (Pic. 10) in the back of the plate. Pull most of the webbing through then thread it through the keepers’ other opening in the opposite direction and finally, exist it through the other slot (Pic. 11). Repeat the procedure with the other side (Pic 12).
- Page 11 To assemble the crotch strap, thread its open end through the loose WK-4 keeper and DR-2 flat D-ring. Make sure the D-ring is on the same side as the hardware already affixed (Pic. 19). Thread the webbing through the webbing loop (as pointed by the red arrow) then assemble the waist flat D-ring as shown.
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Page 12: Harness Adjustments
2) Thread the webbing Harness adjustments through the back plate After putting the back plate and harness together, adjustments will have to be made to suit your unique as shown here (back body shape and diving requirements. Here are some helpful guidelines for you to follow: view) It is a good idea to put on the exposure suit intended to be used with the BCD so the best adjustment can be achieved. -
Page 13: Attaching Your Single Tank Bcd To A Scuba Tank
Thread each band’s webbing through its cam buckle in the following steps: 2) Have the screws through the chosen set of holes on the back plate from the back. To hold everything together, firstly put the flat washer and split washer (in this order) onto the screw from the Pic. -
Page 14: Wing And Tank Attachment For Twin Tank Bcd
In order to set up a diving twin tank set, you will also need a set of manifold or alternatively, 2 valves with outboard valves (available from your local IST dealer separately) installed to your tanks first. If you wish, this... - Page 15 7) Repeat step 5 & 6 with the bottom tank band. Please note distance from the top band should 2) Make sure these lock nuts are shifted be 11” (centre to centre). It is all the way towards the centre isolator easier using a back plate to valve to allow room for adjustment measure.
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Page 16: Back Plate Pouch And Fitting Hardware
Back plate pouch and fitting hardware 1) There are 8 grommets on the pouch and it comes with 8 If the centre isolator becomes difficult to turn, stop immediately or damage may occur. Check if an over-adjustment has been made. If the cylinders are still not parallel but no over-adjustment has been made, sets fitting hardware... -
Page 17: Bcd Handle
V. USING THE BCD Power inflator BCD handle Depending on the model, your BCD’s air cell may come with 1 or 2 inflators. They all operate in the The handle is to be connected to the BCD’s back plate with back plate pouch hardware. same manner: Deflation / oral inflation button: Use index Inflator button: Use thumb to press the inflation... -
Page 18: Attaching Low Pressure Inflator Hose
Over-pressure exhaust valve Attaching low pressure inflator hose You can conveniently pull open Attach only the low-pressure hose to a regulator’s low-pressure the over-pressure exhaust valve port. Attaching it to the high-pressure port can cause the hose to vent gas in the bladder to to burst, which may result in serious injury or death. -
Page 19: Taking Off The Bcd
This is a required action to keep your - Have an IST authorised dealer to inspect your air cell at least once a year to ensure proper and safe functioning of all parts. -
Page 20: Purchase & Maintenance Record
Tasks performed: Service person: VIII. PURCHASE & MAINTENANCE RECORD Serial # Date of service: Date of purchase (dd) (mm) (yy) Dealer’s name & address Location: Tasks performed: Service person: (Dealer’s stamp) Purchaser’s name: Date of service: Contact info: Location: Tasks performed: Tasks performed: Service person: Service person:... - Page 21 Tasks performed: Tasks performed: Service person: Service person: Date of service: Date of service: Location: Location: Tasks performed: Tasks performed: Service person: Service person: Date of service: Date of service: Location: Location: Tasks performed: Tasks performed: Service person: Service person: Date of service: Date of service: Location:...
- Page 22 www.istsports.com...
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