34
Connecting the hosepacks to the cooling unit
Safety
WARNING!
An electric shock can be fatal.
Before starting the work described below:
► turn the power source mains switch to the "O" position
► disconnect the power source from the mains 
► ensure that the power source remains disconnected from the mains until all work has 
been completed
Connect the inter-
connecting hose-
pack coolant 
hoses to the cool-
ing unit (TS/TPS 
4000/5000)
NOTE!
For TS 4000 / 5000, TPS 3200 / 4000 / 5000 power sources, the power source (1) must 
be connected to the cooling unit using an interconnecting hosepack.
Plug in and secure the interconnecting 
hosepack strain-relief device (1) in the 
opening provided on the base of the 
trolley (see trolley operating instruc-
tions)
Connect the red hose from the inter-
connecting hosepack (2) to the coolant 
return connection on the cooling unit
Connect the blue hose from the inter-
connecting hosepack (3) to the coolant 
flow connection on the cooling unit
Connecting the 
welding torch 
coolant hoses to 
the cooling unit 
(TPS 2700)
(1)
(2)
(3)
1
2
3
NOTE!
A water-cooled welding torch with an 
external coolant connection is required 
for welding with a TPS 2700 power 
source and cooling unit.
The coolant flow and return connections 
must be moved to the front of the cooling 
unit (see "Fitting coolant connections to 
the front of the unit").
Connect the red welding torch hose 
(2) to the coolant return connection 
on the cooling unit
Connect the blue welding torch hose 
(3) to the coolant flow connection on 
the cooling unit
1
2