JETTING MJet V3 Fibre Blowing Machine User Manual

JETTING MJet V3 Fibre Blowing Machine

Copyright © 2020 by Jetting AB
All rights reserved. No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the publisher. For permission requests, write to the publisher, addressed “Attention: Permissions Coordinator” at the address below.
Jetting AB, Murgatan 1, 522 35 Tidaholm, Sweden
jetting.se
info@jetting.se

Important safety notice

Read and understand all procedures and safety instructions before using the MJet V3 cable blower. Observe all safety information on this page and note specific safety requirements as explained by procedures in this manual. Failure to follow these instructions could result in serious personal injury or death .

Manufacturer
Jetting AB Murgatan 1
522 35 Tidaholm Sweden
jetting.se
info@jetting.se
+46 502 65 90 10

General information

• The MJet V3 is a unique device for installing fiber optic cable directly into pipe. The MJet V3 is comprised of an air block and a belt drive that, when combined installs a cable into an airtight pipe, run at speeds of 0 to 0-120m/min.
• The MJet V3 greatly reduces pulling stress on the cable. The adjustable push force of the belt drive will stall the motor or slip in the belt drive if the cable hits an obstruction.
• The MJet V3 comes standard with a Digital LCD meter display, pipe packs and a service kit in aluminium case.
• These operating instructions contain a full description of the MJet V3, which have been designed for the purpose of feeding fiber cable through pipes of uniform cross section. The pipe must have previo-usly been installed underground or overhead to receive the fiber optic cable and must be of sufficient length on exit to be received by the machine. The pipe must be of material with sufficient compression strength for it to be adequately sealed in the pipe clamps of the machine. The pipe must be airtight up to a pressure of 16bar. Pipe(s) sizes range from 10 mm-63 mm, while fiber optic cable(s) range from 4 mm-40 mm.
• The MJet V3consists of an air block that is made in two halves that clamp together around the pipe. The pipe clamps hold a seal that the fiber optic cable is fed through before entering the pipe. The pipe clamps and cable seals can be interchanged to accommodate different pipe and cable sizes. The pipe is mechanically clamped between the pipe clamps at the exit of the air block, preventing movement in any direction. Seals conform around the pipe when clamped.
• The fiber optic cable is fed through the pipe by a combined pulling/pushing force. The pulling force is achieved when pressurized air is fed into the air block and forced into the pipe, generating drag on the fiber cable from airflow passing over it. The pushing force is created by engaging the belt drive system. As the belt drive feeds fiber cable into the pipe, drag force is created by the airflow. The fiber optic cable floats in the pipe, minimizing any resistance to being pushed in by the belt drive.
• The use of the MJet V3for operations other than those described in this manual are considered dang-erous and are discouraged. Use of this machine for work other then what is intended, relieves the manu-facturer from any responsibility, civil or penal. The manufacturer’s responsibility ceases and the warranty is voided when one of the following occurs:
  • A. When MJet V3 is used for purposes other than what is detailed in this manual.
  • B. Tampering and/or modifications carried out without written approval of the manufacturer.
  • C. Not using original manufactured replacement parts.
  • D. Poor maintenance.
  • E. Not using supplied safety devices or equipment.
  • F. Connection of this unit to machines and/or parts not produced or authorized in writing by the manufacturer.
  • G. The MJet V3 should not be used to install any cable other than fiber optic cable specified within the range outlined in this instruction manual.
  • H. The MJet V3 should not be run without oil in the oil mist canister, this will immediately void the warranty.

Jetting is not responsible for injuries incurred as a result of improper use of the MJet V3.

Technical information

A. Condition of use

1. Temperature from -15° C to +40° C
2. Humidity from 20 % to 90 %
3. Weather conditions relevant to working conditions
4. Natural and/or artificial lighting of the work site, >200 lux

B. Air compressor requirements

1. Pneumatic pressure: 16 bar maximum
2. Required air flow : 0.14 – 11 m3/min
3. Air hose fittings: 1/” European quick connect
4. Maximum pressure to motors: 6 bar
5. Clean dry air only

C. Operational capacities

1. Pushing force 1200N max push force
2. Pushing speed 120 m/min maximum
3. Cable sizes 4-40 mm
4. Pipe sizes 10-63 mm

D. Electrical requirements

1. Power requirements: 9V alkaline battery
2. Power connection: Battery compartment

E. Physical specifications

1. Height: 300 mm
2. Length: 700 mm
3. Width : 310 mm
4. Weight: 22 kg

F. Belt drive specifications

1. Maximum clamping force is 2000N
2. Constant cable centerline design
3. Forward
4. Independent pushing drive belts
5. Touch guards

G. Duct coupling requirements

1. Must withstand maximum air pressure of 16 bar
2. Must withstand axial loading and vibration
3. Must be a compression type coupler
4. Must fit snugly
5.  Pipe ends must be cut off squarely and deburred
6. Pipe must be fully seated into the coupler

Safe operating practices

Inappropriate operation could result in serious personal injury, property damage or death. Read and understand all procedures and safety instructions before using the MJet V3. Observe all safety information on this page and note specific safety requirements as explained by procedures called out in this manual. Failure to follow these instructions could result in serious personal injury, property damage or death.

A. Work area safety

1. Wear personal protective equipment: hard hat, safety glasses, safety shoes, and light leather work gloves (OSHA approved or personal protective equipment directive 89/686/EEC compliant).
2. Wear close fitting clothing to avoid clothing getting trapped in belt drive.
3. Keep long hair tucked back and refrain from wearing any jewlery.
4. The safe operation of this equipment requires that the operators be on stable footing.
5. Stay clear of cables or lines under tension.
6. Stay clear of pressurized line and pipe.
7. Use the blower only for its intended purpose.
8. Do not place cable reel too close to unit. Place the reel far enough away from the unit to ensure proper control.
9. Keep hands away from belt drive while blower is in operation.

B. Pneumatic devices
The MJet V3 is a pneumatic device, using pressurized air to project cable at high velocities. Please observe the following precautions when operating the blower:

1. Forced air creates flying debris. Always wear personal protective equipment. Severe personal injury could result.
2. Ensure no personnel are in the destination access vault during the blowing operation. It could result in severe personal injury.

C. Electrical devices
The controller and digital display are electrical devices. Electrical shock hazards exist that could result in severe personal injury or death. Observe the following precautions to avoid electrical hazards:

1. Do not operate in or near water. This includes setting the unit on a wet surface or exposing to rain.
2. Do not operate when there is lightening or extreme weather. An earth stake driven into the ground as added protection is recommended if there is any chance of extreme weather developing.
3. Do not remove the digital display cover. There are no user-serviceable parts inside. Refer servicing to qualified service personnel.

D. Working at night requirements

1. Operator must provide portable lighting that achieves a light intensity of at least 200 Lux (Lumens/m^2).

Misuse will void warranty

Unpacking the box

A. Blower components
Each MJet V3 STD Kit contains the following items:

• MJ et V3 main unit
• Machine mount
• Q uick Connect
• Pipe clamps (varying related to order)
• C able Seals Kit (varying related to order)

Set up the blower

This manual contains setup and operating instructions for the MJet V3.

Do not connect air supply until setup is complete.

A. Determine fiber size

• Determine cable size to be installed.

B. Select cable seal & pipe

• Choose the correct cable seal and air block for the particular application according to pipe and cable size.

C. Install cable seal & cable in air block

• Install the appropriate cable seal on the fiber. Make sure orientation of seal on fiber is correct so that it will seat in the air block properly. The seal lip of the cable seal should be facing the pipe end.
• Once the cable seal is positioned properly on the cable, install the cable seal in the bottom half of the appropriate air block.

D. Install pipe

• Place cable seal over the cable.
• Position the pipe properly in the bottom half of the air block.
• Ensure there is adequate length of pipe available to avoid unnecessary strain on the pipe.
• Place cable into pipe, place cable and seal into air block.
• Once the pipe is in place, secure the configuration by installing the top half of the air block and pressing firmly together.

E. Install pipe & fiber in blower

• Loosen the knob on the air block assembly. Open the air block cover. Insert the pipe into the air block as shown. Close air block cover and hand tighten knob to secure.

F. Install cable in belt drive and tighten

• Adjust rear guide and measurement wheel to fit the cable and make sure the measurement wheel doesn’t slip.
• Insert pipe assembly and tighten knob into air block.
• Feed the cable between belt drive and through the rear fiber guide.
• Tighten belt drive using the down screw knob to ensure even pressure on the cable.
• Tighten down so that the belts no longer slip at the push force setting determined in the crash test procedure. Do not over tighten.

G. Power on the counter unit
H. Connect air compressor
NOTE: Ensure the air control valve is off before connecting the air hose.

• Attach the air compressor hose to the air compressor.
• Then connect the compressor hose to the blower unit. The unit uses a Camlock coupling (an adaptor from Camclock to claw connector can be provided).

NOTE: Always use clean and dry air.
NOTE: Route all hoses properly to prevent tripping hazard.
To avoid creating a trip hazard always route air hose out of the way and secured to a stable object.

The fiber cable reel should be placed axially perpendicular to the length of the micro pope and typically 6ft (2m) or more from the MJet V3. The MJet V3 must be positioned in-line between the fiber cable to be installed and the micro pipe. The fiber should not enter the MJet V3 at an angle of more than 10 degrees from the intended axis of travel.

Crash test

Cable Crash Testing is a very quick and easy step to be completed before attempting the installation of cable with the MJet V3. This test is necessary to set the push force control of the motor below the point that the MJet V3 may cause cable damage as a result of over pushing or encountering an obstruction in the sub-pipe system.
Every cable has different pushing values and these values vary depending on pipe I.D.

Always wear protective equipment: hard hat, safety glasses, safety shoes and work gloves.

IMPORTANT
For the Crash Test to work properly, use the same size cable and pipe that will be used for the job. Jetting cannot be responsible for any cable damages.

Crash Test: For all types of cables > 3mm diameter
Set belt clamp force to the lowest possible setting that will allow for a desirable installation speed.

1. Insert the cable and seal inside the pipe pack as it would be for the actual installation.
2. Install a 1 to 2m test length of pipe into the MJet V3 pipe clamp and insert pipe clamp into the air block.
3. Block the end of the test length of pipe.
4. Tighten down belts on to the fiber with the belt drive engaged in the forward direction until the fiber starts to install.
5. Ram the fiber into the blocked end of the pipe.
6. Belt slip should occur on the fiber before the fiber folds over.
7. Tighten down belts on the fiber a half turn.
8. Repeat step 6-7 until the cable folds. This is your push force slip limit.
9. Loosen up the belts on the fiber a quarter turn and perform test once more to confirm no fold over has occurred. KEEP THIS SETTING APPLIED TO THE FIBER FOR ACTUAL INSTALLATION!
10. Swap out test length of pipe with actual installation pipe and proceed to operating the MJet V3.

Blower operations

1. Verify adjustable push force
   Verify adjustable push force is set to the established crash test value and the speed is at minimum. Turn the pressure setting valve to 0 bar by lifting the dial ring and turn it fully anti clockwise.

2. Engage belt drive
   The belt drive can be operated in forward. For installation, engage the belt drive in forward by slowly increasing the air pressure valve. Install the fiber into the pipe using push only until the installation has slowed. Do not exceed 6 bars. When exceeding 3 bars consider to stop the cable jetting as you might dismantle the cable at motor pressure > 3 bars.

3. Engage air
   Slowly open the air control valve to allow air flow to the air block. Do not apply maximum air pressure and flow at initial air engagement. Do not open air supply before adequate fiber has been pushed in (> 100M).
   IMPORTANT
   Do not exceed 16 bars when operating the unit. Forced air creates flying debris.
   Always wear personal protective equipment.

4. Adjust speed
   Use the pressure setting dial to adjust the belt drive speed to ensure smooth installation and match the amount of air pressure being used so that the forces are working together, not against one another.

5. Install fiber
   It may be helpful to guide/apply back tension to the fiber using your hand at the cable entrance of the machine to maintain control over the fiber.

6. Belt drive engages forward
   To stop the belt drive reduce the pressure or turn the red emergency shut off valve in the off direction.

7. Check water separator
   Check/empty the water separator regular to secure that no water will go into the motors.

Maintenance

• Avoid handling leaking couplings, valve seal or inadequately sealed pipe in air block.
• Disconnect air supply and exhaust any air pressure before servicing any component on the MJET V3.
• DANGER! Risk of air under pressure penetrating skin.

Troubleshooting guide

Cable becomes jammed in the pipe

1. Inform the people at the other end of the pipe that a problem has been experienced and the operator is going to shut down the system.
2. Shut off the pneumatic air supply with the air control valve, allowing the air pressure to be depressurized from the pipe and the air block.
3. Using the counter or the measurement on the cable, determine where the blockage might be located.
4. Notify supervisor about problem and determine a s olution accordingly.

Belt feed does not pull the cable

1. Assist the reel by pushing it and/or by pulling the cable of the reel.

The cable run is hard to restart after having stopped

1. Put air to the system with the belt drive. The belt can be restarted after the air pressure has increased and s t abilized.

Belt feed does not start

1. Estop may still be engaged. Reset the estop button by turning it clockwise. Check oil canister.

EC Declaration of conformity

Manufacturers Name: Jetting AB
Manufacturers’ Address: Murgatan1, 52235 Tidaholm Sweden

declare that the machinery described below conforms to health and safety requirements of Parts 1and 2.2 of Annex I of nachinery Directive 2006/42/EC. Confidential technical documentation has been compiled as described in Annex VII Part A of achinery Directive 2006/42/EC and is available to European national authorities on written request. If a request is received locumentation will be transmitted either electronically or by post.
Description: MJet V3 Fiber jetting machine
The following standards have either been complied with in part or in full or used for reference as relevant:

References

• Jetting AB - Fiber Blowing Machines - For professional fiber blowers​

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