Signode PN2-114, Operation, Parts And Safety Manual

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7
MOISTURE
Moisture is always present in air lines due to condensation within the lines as the air cools.
Steps must be taken to remove this moisture and to keep it from the air tool. This is because
water tends to wash away lubricants and cause corrosion, sticking and failure of internal parts.
The main line should be pitched so the far end terminates in a water leg. Branch lines are taken
from the top of the main, never off the bottom. Every branch should have a water leg at its
lowest point, with a drain cock which is drained daily. If these precautions are taken and water is
still present, an after cooler and a moisture separator are required between the compressor and
the air receiver tank. A large air line separator can be installed in the air tool line, but
precautions must be taken to insure that it will be drained daily, before the air tool is operated.