Jetting MJet V3 Instruction Manual

MJet V3
Product model/type: MJet V3 2017-SW > 3.0
MJet V3 USER'S GUIDE AND SAFETY MANUAL

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
[e-mail]

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.
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Caution: Noise will exceed 70 db
Manufacturer
Jetting AB
Murgatan 1
522 35 Tidaholm
Sweden
jetting.se
[e-mail]
[phone]

Table of contents
General information 1 5
Technical information 2 6
Safe operating practices 3 7
Unpacking the box 4 8
Set up the blower 5 8
Crash test 6 10
Blower operations 7 11
Maintenance 8 12
Troubleshooting guide 9 13
EC Declaration of conformity 10 14
Notes 11 15
Section Page
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1. 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 sucient
length on exit to be received by the machine. The pipe must be of material with sucient 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 dierent 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.
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2. 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 o squarely and deburred
6. Pipe must be fully seated into the coupler
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3. 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**
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4. Unpacking the box
A. Blower components
Each MJet V3 STD Kit contains the following items:
- MJet V3 main unit
- Machine mount
- Quick Connect
- Pipe clamps (varying related to order)
- Cable Seals Kit (varying related to order)
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5. 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.

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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 o 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.

6. 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 dierent 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. Lo osen 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.
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7. 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 o valve in the o direction.
7. Check water separator
Check/empty the water separator regular to secure that no water will go into the motors.

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8. Maintenance
Procedure Daily Weekly Monthly 60 days 90 days
Clean all assemblies and components
thoroughly with dry cloth X
Inspect fasteners and screws X
Check Belt Tension. Replace if excess wear has
occurred. Excessive wear has occurred when
the belts are no longer able to eectively grip
the cable optic cable
X
Pipe Pack Seal Replacement X
Belts Replacement Every 50 km unless excessive wear is occurring
Seals Replacement Every 10 km unless excessive wear is occurring
IMPORTANT!
• Check oil level daily and refill container if
needed. Oil level should never be completely
empty
• Check oil dispenser unit if it´s working by
looking at the small glass bulb on top, if
properly adjusted and in working order it will
dispense 3 drops/min otherwise adjust it by
turning it to the correct amount
• (Do not run engines with empty or defect oil
dispenser!)
How-to
• Turn o the machine
• Make sure that the machine is level
• Un-screw the glass container (no tools needed)
• Refill with “Jetting Lubrication 1L Oil32” art.nr: 1030
• Screw it back on (no tools needed)
• Always dry clean air
• Check/empty water separator
• Use compressor with water separator/dryer
• Placed on the machine
• If machine is not used every day or you leave
it for the weekend/holiday we recommend
cleaning and lubricate the motors
• Inject a good gulp of oil into the motors an rotate the motors
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.

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9. 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 o 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
solution 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 1. Put air to the system with the belt drive. The belt can
after having stopped be restarted after the air pressure has increased and
stabilized.
Belt feed does not start 1. Estop may still be engaged. Reset the estop button
by turning it clockwise.
Check oil canister.

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10. EC Declaration of conformity
Håkan Johanon

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11. Notes

MJet V3 USER'S GUIDE AND SAFETY MANUAL
Version 2021-10