OPERATION CHASSIS continued (16.4.2) WA450-3MC 2-96 Problem Main causes Remedy HYDRAULIC SYSTEM Lack of lifting power for bucket Bucket takes time to raise Lack of oil Clogged hydraulic tank Add oil to specified level. See ? EVERY 100 HOURS SERVICE on page ?-38. Replace filter. See 24.9.2 REPLACE THE FILTER ELEMENT on page 3- 55. Excessive bubbles in oil Low oil quality Low oil level Air in oil line Replace with good quality oil Add oil to specified level. See ? EVERY 100 HOURS SERVICE on page ?-38. Bleed air Low hydraulic pressure Low oil level, pump sucking air Add oil to specified level. See ? EVERY 100 HOURS SERVICE on page ?-38.
Irregular cylinder movement Low oil level Add oil to specified level. See ? EVERY 100 HOURS SERVICE on page ?-38.