4.2.6. Check the adjustment of the outreach limit switch RK4
To check the correct adjustment of the outreach limit switch RK4:
1. Put a carefully weighed test load on the platform according to the picture.
205RXT: w = 215 kg
240RXT: w = 80 kg
265RXT: w = 80 kg
2. Drive the boom to a horizontal position from the chassis control panel.
3. Drive the platform with the levelling control to a horizontal position so that that the last
stage of the adjustment procedure is lifting
4. Extendthetelescopeuntilitstopsandaredlightstartsashing.
5. Measure the stroke and compare it to the values given in the picture.
6. If the stroke is too long, it must be readjusted.
4.2.7. Check the load holding and load regulation valves
Check the operation of load holding and load regulation valves as follows. If a valve is
leaking, do the necessary service actions.
1. Outrigger load honding valves
• lift the platform to operating position on a level surface
• measurethedistancefromthechassistotheoorseparatelyateachoutrigger
• After a few minutes, measure the height again. It should be the same as before.
2. Load regulation valves on the boom cylinder and the cylinders of the articulated arms:
• Drive the boom to a position in which its movement can be reliably measured.
• Observe the possible movement of the boom in a few minute’s time.
• Do the measurement again. It should be the same as before.
3. load regulation valve on the telescope cylinder
• extend the telescope and stop the movement at any position
• measure the stroke
• lift the boom closer to a horisontal position and observe in a few minutes .
• lower the boom and do the measurement again. It should be the same as before.
4. load regulation valve on the platform levelling system
• Putaloadof100-200kgontheplatform
• Measurethedistancefromtherearedgeoftheplatformtotheoor
• Observe for a few minutes
• Do the measurement again. It should be the same as before.
205RXT: L = 1350 mm
+0/-50mm
240RXT: L = 1800 mm +0/-50mm
265RXT: L = 1600 mm +0/-50mm
100 mm
w