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4. COMPRESSED AIR TEST • Check low speed clutch system: Low speed clutch piston should be active and maintain pressure when com- pressed air is applied to the fluid hole. • Check reverse/low brake clutch system: Low speed clutch piston should be active and maintain pressure when compressed air is applied to the fluid hole. Is the check result normal? Yes >> Go to the next step for disc or plate abrasion. No >> Replace the damaged components as needed. 5. CHECK CLUTCH SYSTEM • Check low speed clutch system: − 2, 3, 4 gear clutch (E2) Is the check result normal? Yes >> Go to the next step. No >> Replace the damaged components. 6. CHECK BRAKE SYSTEM • Check reverse/low brake system: − 4 gear brake (F1) Is the check result normal? Yes >> Go to the next step. No >> Replace the damaged components. DIAGNOSIS & TESTING
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