. MAINTENANCE MAINTENANCE PROCEDURE MAINTENANCE MAINTENANCE PROCEDURE 4. Direct dry compressed air (Max. 0.69 MPa (7 kgf/cm 2 , 99.4 the same time. has been cleaned. NOTICE 4 - 18 OTICE he inner ele T r eplacing the outer element, replac e the inner element at the same time m the inside of the outer element along its folds. Then e compressed air fr om the outside alon g the folds, and m the inside. ace any outer ele 6 s or used for one y ear. Replace the in ner element at ace both inner and outer elements wh en the dust indicator red piston appe ars soon after installin g the ned outer element even though it has not been cleaned 6 ove one seal from the element whene ver the element 5.
If small holes or thinner par ts are found on the element when it is chec the elem ked by shining a lig ht through it after cl eaning, replace ent. When cleanin g the element, do not hit or beat it against Do not use an element whose folds , gasket or seal are d 6. Set the cleaned outer elem