5.3 Maintenance intervals
You can avoid malfunctions caused by inadequate maintenance
by adhering to the following maintenance intervals.
The maintenance intervals and instructions specified in the table
below presuppose proper use under normal conditions.
Warning: Maintenance work requiring the power unit NOMARK
65/99 to be opened may only be carried out by authorised
electricians
Maintenanc
e
intervals
Maintenance instructions
Every 8
hours
or daily
• Check the welding cable, earth cable,
control cable and
power cable for external damage – replace
defective cables immediately.
• Check the Chuck (wearing part) for adequate
clamping force and wear; replace if necessary.
• Check the welding cable plugs for firm
connection; tighten if necessary – replace
scorched plugs.
• Check the retaining nut of the gun for firm
seating; tighten if necessary.
• Check the bellows for correct seating and
adjust if necessary – replace if damaged.
• Check the positioning feet for firm seating;
tighten if necessary – replace bent feet.
• Check the gun plunger for ease of movement
– clean with a brass brush.
Every 35
hours
or weekly
• Check connections and operating elements.
• Make sure the LEDs work.
Every 800
hours
or half-yearly
Power unit NOMARK 65/99:
Check for dirt and contamination*) inside the
housing and clean*) if
necessary according to chapter 5.2.
Check all screw connections.
Every two
years
• General inspection of the power unit by repair
technician and electrician.
*) Check only by electricians!
Tab: 5 - 4 Periodic maintenance intervals
53
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