. MAINTENANCE MAINTENANCE PROCEDURE shown in the diagram on the right. NOTICE 4 - 20 3) Replac e both i nner a nd oute r element s when the monitor (1) lights up soon after installin g the cleaned outer elemen t even though it has not been cleane d 6 times. 4) When r eplaci ng the elemen t, stick o n seal ( A) packed n the sam e box as the elemen t. Stick th e seal i n the position 7. Remove th e cloth or tape cover installed in Step 8. I f small hol es or t hinner parts ar e found on the e lement when t is checke d by sh ining a light th rough it a fter cleaning, replace he elemen When cleanin g the ele ment, d o not hi t or beat it against anything.
Do no t use an elemen t whose folds o r gasket o r seal are damaged.