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Main operating troubles of the gearbox are the following: 1 - Noise YES Too much backlash of gears Check the gearbox and replace the gears worn out Gears, bearings, synchronizer rings and coupling el- Replace the shaft and the driven disc, if required. Inadequate oil level in the box Fill with Tutela ZC 90 or Tutela Truck Fe-Gear Uncorrect engagement operation Engage the gears to bottom before releasing the clutch YES YES 1 NOISE NO NO YES 2 SPONTANEOUS DISENGAGEMENT Forks broken Remove the gearbox, check the elements and replace Synchronizer rings worn out. Check the engaging gears and sliding sleeves, replace YES YES NO NO 8 GEARBOX ZF 9 S 109 D.D. S TRALIS AT/AD Base - January 2003 |