37-1-614 Page 28
Oil Bath Filter
(FIGURE 4-4, page 27) – The following instructions also apply when the filter is equipped
with a silencing chamber:
1.
Remove cover, screen and bowl form the base.
2.
Wash the screen and bowl.
3.
Fill the bowl to oil level bead with oil listed.
4.
Place the end of the screen bonded with felt down into the oil. Upside-down installation will
result in heavy oil carryover.
5.
Replace the cover and tighten wing nut securely.
6.
Make sure all connections to the air filter are tight.
FIGURE 4-5 – OIL WETTED FILTER-SILENCER
Oil Wetted Filter-Silencer
(FIGURE 4-5, page 28) – Cleaning of the filtering media is accomplished by
thoroughly washing in a commercial solvent and blowing dry with air. Blow from inside to outside to
dislodge dirt particles from the finer screen sections. After the silencer can be supplied with an all-
weather hood. If an oil wetted filter without silencer is used, the service instructions in the previous
section will also apply.
Dry Type Filter and Filter-Silencer
(FIGURE 4-6, page 28) – When the outside surface of the element
appears to be evenly coated with dirt, it should be cleaned as follows:
1.
Remove wing nuts and lift off the hood.
2.
Loosen the outside retaining strap to remove the media.
3.
Vibrate or blow off heavy dirt accumulation.
4.
If required, wash the media in any carbon base commercial solvent and blow off the excess
solvent.
5.
Allow to dry and examine for damage or conditions requiring replacement.
Because the media in the dry type filter is of wool felt, it may become impregnated with oil or water, if
present in any large degree. Corrosive gases may also attack the media. While such conditions are not
common, they should be kept in mind.
FIGURE 4-6 – DRY TYPE FILTER AND FILTER-SILENCER
DISCHARGE SILENCER
– A drain may be provided in the silencer at the lowest point for draining
condensate. Draining intervals will depend upon humidity conditions and must be established by the
user.
