
6
ROUTINE MAINTENANCE
FILTER MAINTENANCE - the CR SERIES is equipped with a 100 mesh screen
filter. This filter should be checked periodically. A partially clogged filter will
slow down the recovery rate of this unit.
Replace the filter cartridge as follows:
1. Use a 7/8” socket or boxed end wrench to loosen the suction port as shown
in Figure 1.
2. Once loose, remove the suction port- filter cartridge assembly is shown in
Figure 2.
3. Either clean the current cartridge or replace with new cartridge.
(Item NO. CRXF3)
4. Inspect O-RING.
RE-LUBRICATE with compressor oil or equivalent.
5. Place filter back into suction port fitting.
6. Hand tighten this assembly back onto the CR unit.
7. Use a 7/8” socket or boxed end wrench to tighten 1/8 of a turn.
DO NOT
OVER TIGHTEN,
damage to the O-RING may occur.
8. Check the connection for leaks.
Figure 1 Figure 2
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