6 - Maintenance90Wing tilt adjustmentThe horizontal adjustment of the wings is carried out by the retracted tiltcylinder. The boom must be straight and horizontal. If necessary, adjustthe wing as follows:1. Support the boom to relieve the load from the hydraulic cylinder.2. Loosen counter nut (A), which is positioned by the hinge ring onthe cylinder’s piston rod.3. With a wrench (on two flat spots on end of the ram), adjust thecylinder ram inwards or outwards to get the desired wing level.4. Repeat the steps for the other side.Slanting Indicator Adjustment (optional)If the position of the pointer on the indicator does not correspond to theactual boom position, the pointer (A) can be adjusted.1. Loosen the small bolt (B) sufficiently to allow the wire (C) to beadjusted.2. Place the pointer (A) in correct position and fasten bolt (B) againstthe wire (C) again.Wear Bushing Replacement on Boom LiftThe wear bushes are inspected and renewed, before they are wornthrough.1. Connect the trailer to a tractor and unfold the boom to workingposition.2. Lift the boom centre frame with a lifting device and support it,until the load is taken off the parallelogram arms.3. Remove the screws (A), and pull out the pins (B) at one of theupper parallelogram arms and replace the wear bushes.4. Refit the arm.5. Repeat this on the other upper arm.6. The lower arms must be disconnected simultaneously7. Apply grease into all grease nipples.8. Remove the lifting gear again.Change of Bulbs1. Switch off the light.2. Loosen the screws on the lamp and remove the cover or lens.3. Remove the bulb.4. Fit a new bulb, refit the cover and tighten the screws.μ ATTENTION! If halogen bulbs are used, never touch the bulb with your fingers. Natural moisture in the skin will causethe bulb to burn out, when the light is switched on. Always use a clean cloth or tissue when handling halogen bulbs.
