CTR9 Car-O-Liner Group AB
49023, EN - rev. 4, 2020-01 103
7.2 Maintenance
The amount of use and the working environment should be taken into con-
sideration when planning the frequency of maintenance for the welder.
Careful use and preventive maintenance will help you to ensure trouble-free
operation.
Follow the Inspection plan below for correct inspection
intervals and service actions:
Daily
inspection
Weekly
inspection
Monthly
inspection
Annual
inspection
Check condition of C-tong, air connections and air
hoses to prevent overheating and malfunction due
to poor cooling
Check condition of welding cables.
Do not use faulty cables
Check that mains connection cables are safe and in
compliance with local regulations
Check that all welding caps are in good
condition.
Cleaning with Scotch-Brite Hand Pads.
Use a tip dresser to maintain the proper shape.
Change caps if necessary
Check coolant level
Check support arm cord
Check function of support arm spring
and locking mechanism
Clean air filters, see figure 7.1 on the following page
Change coolant and high-tech anti freeze,
see 3.7 Filling of cooling liquid
Check possible oxidation since it may cause contact
resistance in the welding circuit. Remove oxidation
swith fine sandpaper if necessary
Check cooling tubes. Each cap holder electrode has
a specific coolin tube that goes in it
Clean the spot welder and remove dirt and metal
particles that might be attracted by the machine´s
magnetic field
Check all screws on electrode yokes, electrode
holders, plates, rigid and flexible junctions.
Tighten if necessary
Completely drain off and replace coolant
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