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 V2. This test is necessary to set the push force control of the motor below the point
that the MJet V2 may cause cable damage as a result of over pushing or encountering an obstruction
in the pipe system.
Every cable has different pushing values and these values vary depending on duct 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 duct 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 duct clamp as it would be for the actual installation.
2.
Install a 1 to 2m test length of duct into the MJet V2 duct clamp and insert duct clamp into the air
block.
3.
Block the end of the test length of duct.
4. Tighten down belts on to the cable with the belt drive engaged in the forward direction until the
cable starts to install.
5.
Ram the cable into the blocked end of the duct.
6.
Belt slip should occur on the cable before the cable folds over.
7.
Tighten down belts on the cable 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 cable a quarter turn and perform test once more to confirm no fold
over has occurred. KEEP THIS SETTING APPLIED TO THE CABLE FOR ACTUAL INSTALLATION!
10. Swap out test length of duct with actual installation pipe and proceed to operating the MJet V2.
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