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Emerson L20 - Periodic Maintenance

Emerson L20
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34 DCM00003 REV. 07
5.1 Periodic Maintenance
In order to maintain optimum operating conditions, it is important to perform various
maintenance and equipment inspections at periodic intervals. Please observe the following
recommendations.
Daily
Drain water and contaminants from the airline filters, if required
Every Tool Rotation
Inspect the clamping surfaces of the Tip, the Tip Nut and the Horn for fretting
Vacuum and clean out any copper residue or dirt in the actuator
After 40k-50k Cycles Maximum (subject to change based on weld application):
Vacuum and clean inside of power supply
Calibrate pressure regulator
Clean and torque the stack interface
Calibrate amplitude
5.1.1 FSR Assembly
Air Filter/Separator/Regulator (Optional Branson Part #207-020) should be serviced after
1 year or when a pressure drop of 15 psi is reached.
Disconnect the air supply
Remove and clean out filter bowl with a clean rag
Replace the white filter element and re-assemble
Remove and clean out separator bowl with a clean rag
Replace brass-colored filter element and reassemble
Reconnect air supply
Do not use solvent to clean filter bowls.
CAUTION
Clean the air filter bowl with a mild household soap only. The bowl is
made from a polycarbonate material, which can rupture if exposed to
synthetic lubricating oils solvents or harsh chemicals. The bowl is
rated for a maximum line pressure of 140 psig (1043 kPa) and a
maximum temperature of 120ºF (49ºC).

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