John Deere 2006. 2305. Start problems.

[Bluehat]

Thanks in advance for your help. Starting problem. New battery, cables, grounds are clean. When you turn the key to let the glow plugs to start, turn key, want turn over, you think N/S switch, changed. Still no start. Wiggle low - high lever still no start. Repeat start sequence then wiggling lever again start. Can turn off and with not restart.