Kemppi 25 Operating Manual - Than Promig And Feed
EN
3.
using THe PMT gun wiTH uniTs OTHer
THan PrOMig and Feed
In the PMT guns, in addition to start operations, gun control and thermal
protection operations are also transmitted along the control lines of the snap
connector (PMT 30W, PMT 42W, PMT 52W). Hence the delivery state of the
guns is such that without any alternations to the internal connections, the
guns are suitable to be used only with Promig and Feed wire feed units.
The use of PMT guns in other MIG units without any alternations to the
connections may cause following erratic behaviour:
• Start is always switched on and wire is being fed continuously,
eventhough the trigger is not pulled.
• Start does not operate even if the trigger is pulled. If the RMT 10
gun control unit is installed, the use of the PMT gun in other units
than Promig or Feed may cause a malfunction as described above,
eventhough you have changed the internal couplings of the gun.
If the RMT 10 gun control unit is coupled at its place, using the PMT gun in
units other than Promig or Feed may cause malfunctions as described above,
eventhough you have changed the internal coupling of the gun.
3.1
CHanging THe COnneCTiOn
Under the plastic cover of the snap connector head of the PMT gun there
is an electronics card, on which there is a shorting jumper for changing the
connection.
• Release the fastening screws (4 pcs.) of the plastic cover protector of the
snap connector head.
• Lift the cover approximately 50 mm. Do not bend the cooling liquid
hoses.
• Take the electronics card out of the plastic protector.
• Gently pull the insulating hose covering the card to the direction of the
snap connector so that the shorting jumper becomes accessible. Handle
the wires of card and their connections carefully.
• Ιn the delivery state, the shorting jumper is mounted to the connectors,
next to which, at the base of the card, there is a printed symbol text
“PRO”. Disconnect the shorting jumper and connect it to the another
connector pair with the symbol text “FU”.
• Pull the insulating hose back onto the card.
• Mount the card back in its original place. Make sure that clamper rings of
wires remain in their original position. Make sure the plastic cover does
not press against the card when it is reattached to the gun.
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PM
T © Kemppi O
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