Download SARITOR Self Propelled
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6 - Maintenance Boom Tube Fittings Poor boom tube sealing is usually caused by; • Missing O-rings or gaskets • Damaged or incorrectly seated O-rings • Dry or deformed O-rings or gaskets • Foreign objects In prevent leaks follow these guidelines; • Do not overtighten fittings • Lubricate the O-ring all the way around before fitting onto the boom tube • Use non-mineral lubricant • For axial connections a little mechanical leverage can be used • For radial connections only hand tighten In repair leaks follow these guidelines; • Disassemble • Check condition and positioning of O-ring or gasket • Lubricate • Reassemble Shock Absorbers If the shock absorbers loose their efficiency or start leaking oil, they should be replaced. Wear bushing replacement The wear bushings are inspected and replaced before they are worn through. • Unfold the boom to working position. • Lift the boom centre frame with a lifting device and support it until the load is taken off the parallelogram arms. • The upper arms must be disconnected simultaneously. • Remove the screws (A), and pull out the pins (B) for the upper parallelogram arms and replace the wear bushings (C). • Replace the arms. • Repeat this procedure with each of the lower arms. • Grease all grease nipples. • Remove the lifting gear again. 6. 6