NF KP3000GS, Instruction Manual

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9.2 Daily Maintenance
KP3000GS 221
The air filters can be removed by the steps described below.
1. Loosen the screw at the bottom of the front grill holder by turning it clockwise.
2. Flip up the control panel to its maximum angle.
3. The topmost front grill is fixed at the bottom left and right to the chassis, and hung at the top on
the hook of the chassis. Hold the front grill at the bottom left and right sides, and pull it out
toward you to release it. Move the front grill upward and toward you. Unhook and remove it as
letting the control panel through it.