Humboldt HM-4165 3-Cell Manual Control Panel - Manual (Page 7)

5
AIR FILTER
There is an in-line air filter which filters the incoming air from the
compressed air source. It also traps water and other fluids in the line.
MAINTENANCE
There is very little maintenance required. The digital gauge operates
with AC power. If the gauge fails to operate, first check the transformer
to determine if it is operational.
The air filter should be checked every day to determine if the white filter
element is dirty or if fluid must be drained from the clear plastic bowl.
To remove water or fluids from the bowl, turn the black knob at the
bottom of the clear plastic bowl. To purge the fluids from the bowl, turn
the knob as if tightening a right handed screw and the fluids will drain
out of the bottom. To close it, turn the knob as if loosening the screw.
Caution: The filter may be under pressure. If so, the fluids will spray out
at high velocity.
If the filter becomes dirty and clogged, open the drain plug as described
above to relieve pressure. Remove the bowl by rotating the bowl
counterclockwise to unscrew it from the filter body. Be careful not to
lose or damage the o-ring that seals the bowl to the body of the filter.
Next, unscrew the filter support by turning it clockwise until it comes off.
Slide the filter element off of the support and replace it with a new filter.
Reassemble the air filter assembly in the reverse order.
FIGURE 1
MOUNTING FEET ASSEMBLY
8-32 UNC NUT WITH WASHER
8-32 UNC MACHINE SCREW
Figure 1: Mounting Feet Assembly