FIGURE 14 - POLYURETHANE SPONGE STRAINER
FIGURE 15 - DRY ELEMENT- PLEATED PAPER AIR STRAINER
DRY ELEMENT - PLEATED PAPER AIR STRAINER (FIG. 15)
Remove the spring clips from either side of mounting baffle and remove the cover. Replace the pleated paper filter and remount the cleaned cover making sure the filter is in position. Be sure to replace the air strainer gasket if the entire air strainer is removed from the compressor intake. (NOTE: Some compressors are fitted with compressor intake adapters (Fig. 16) which allow the compressor intake to be connected to the engine air cleaner.) In this case, the compressor receives a supply of clean air from the engine air cleaner. When the engine air filter is changed, the compressor intake adapter should be checked. If it is loose, remove the intake adapter, clean the strainer plate, if applicable, and replace the intake adapter gasket, and reinstall the adapter securely. Check line connections both at the compressor intake adapter and at the engine air cleaner. Inspect the connecting line for ruptures and replace it if necessary.
6
FIGURE 16 - COMPRESSOR INTAKE ADAPTER
AIR LEAKAGE TESTS
Leakage past the discharge valves can be detected by removing the discharge line, applying shop air back through the discharge port and listening for escaping air. Also the discharge valves and the unloader pistons can be checked for leakage by building up the air system until the governor cuts out, then stopping the engine. With the engine stopped, carefully listen for escaping air at the intake. To pinpoint leakage if noted, squirt oil around the unloader pistons. If there is no noticeable leakage at the unloader pistons, the discharge valves may be leaking.
If the compressor does not function as described above, or leakage is excessive, it is recommended that it be returned to the nearest Bendix authorized distributor for a factory rebuilt compressor under the repair exchange plan. If this is not possible, the compressor can be repaired with genuine Bendix parts, in which case the following information should prove helpful.
REMOVING AND INSTALLING
REMOVING
These instructions are general and in some cases additional precautions must be taken.
Drain air brake system.
If
Remove compressor mounting bolts and compressor from engine.
Use a
INSTALLATION
ENGINE-LUBRICATED TYPES
Clean oil supply line. Before connecting this line to the compressor, run the engine briefly to be sure oil is flowing freely through the supply line.
Clean the oil return line or return passages through the brackets; these passages must be unrestricted so oil can return to the engine.
