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S U S PENS I ON A Boge levelling unit is located in the centre of the rear axle. unit is self-energising and hence the vehicle has to be driven before the unit becomes effective, the If the vehicle is overloaded the unit will fail to level fully and more frequent bump stop contact will be This is due to normal internal fluid movement in the unit and If the levelling unit is then believed to be at fault, the procedure below should be followed. permissible, the unit should be renewed if there is an excessive oil leak. 1. Remove excessive mud deposits from underneath the vehicle and any heavy items from inside the vehicle that are not part of the original equipment. 2. Measure the clearance between the rear axle bump pad and the bump stop rubber at the front outer of the vehicle, dimension A . The average clearance should be in excess of 67 (2.8 in). If bump stop clearance is less than the above figure remove the rear springs and check the free 4. Renew any spnng where the length is more than 20 (0.787 in) shorter than the figures in the chart. 5. Having refitted or renewed any springs repeat the clearance check as described above. If the average (2.8 in) renew the levelling unit. . . Steering Side R.H. Part Rate Number Free length Colour Number Code PASSENGER R.H. One Green and White stripe NRC 7000 31.5 (180) 6 400 6. Load weights to the value of 650 (1143 Ibs) evenly over the rear load area of the vehicle and 7. With the driving seat occupied with an approximate equivalent weight of 75 (165 check the bump stop clearance and note the 8. Drive the vehicle on a test route approximately 5 (3 miles) in length over undulating roads or graded tracks. At the completion of the drive bring so as not to disturb the vehicle loading. driving seat occupied, check the bump stop (average). 10. Subtract the reading obtained under Instruction 7 from that obtained under Instruction 9. If the 10 (0.394 in) the levelling unit is functioning correctly. 11. If the figures obtained in instructions 9 and 10 do not exceed 45 and 10 and 0.39 in) respectively unload the vehicle and renew the PASSENGER One Green White stripe NRC 7000 31.5 (180) 6 400 and Two Blue stripes DRIVER NRC 6388 31.5 (180) 6 412 Two Blue stripes DRIVER 131.5 (180) 6 412 15 |