Manual 0-4691 5-3 SERVICE
5
C. Optional Two-Stage Filter Element Replacement
The Two-Stage Air Filter has two Filter Elements. When the Filter Elements become dirty the Power Supply will continue to
operate but cut quality may become unacceptable. Refer to Section 6, Parts List, for replacement filter element catalog number.
1. Shut off primary input power.
2. Shut off air supply and bleed down system.
WARNING
Always turn off the air supply and bleed down the system before disassembling the Filter Assembly as injury could
result.
3. Loosen the two bolts on the top of the Filter Assembly enough to allow the Filter Elements to move freely.
4. Note the location and orientation of the old Filter Elements.
5. Slide out the old Filter Elements.
First & Second
Stage
Cartridges
(as marked)
Art # A-02942
Optional Two-Stage Filter Replacement
6. Slide the replacement Filter Elements into the Filter Assembly, with the same orientation as noted in Step 4 above.
7. Hand tighten the two bolts evenly, then torque each bolt to 20 - 30 in-lbs (2.3 - 3.4 Nm). Improper torque may damage the
gasket.
8. Slowly apply air pressure to the assembly, checking for leaks.
NOTE
A small amount of air leakage from the bottom fitting is normal.
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