Inspection and Maintenance
5-18
750-392
CBEX-DE
The cooled oil flows to the pump through the strainer in the filler pipe. It is possible to visually verify oil flow
during operation by removing the filler cap and checking the flow. If necessary, the strainer may be cleaned
during operation.
In the event it is necessary to clean the strainer during operation, clean it and replace immediately. It can be
cleaned by immersing in solvent and blowing it dry with compressed air. Do not operate without the strainer any
longer than necessary, and never add new oil unless the strainer is in place. A spare strainer basket can be
obtained, if desired, and used on a rotating basis while the other is serviced.
5.18.4 — Air-Oil Tank
Pads of steel wool are used in the air-to-oil tank as a filtering medium to separate the lube oil form the com-
pressed air.
The pads play a very important role and should be replaced semi-annually. It is also important that a proper
grade of steel wool be used. Only No. 3 coarse grade American steel wool or equivalent (CB919-124) should be
used. When replacing the wool, insert all but the last pad into the cylinder. Alternate the grain of the pads. Install
the spacer with its stub end toward the opening and fit one pad over the stub. Be careful not to overly compress
the wool and be sure that it is fluffed out to fill all available space. Improper packing can cause high oil con-
sumption. After the last pad is in place, slip the retainer screen onto the cylinder. Be sure to fit an o-ring gasket
under the cover so that a tight seal is obtained.
Follow previous instructions for oil replacement.
FIGURE 5-12. Air-Oil Receiver Tank
5.18.5 — Air Cleaner
Never operate the air pump without the air cleaner in place. The cleaner itself must be periodically checked and
its element flushed and cleaned semi-annually.
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