JLG 642 Operation & Safety Manual page 59

Gear Selection
Gear selection is located on the twist grip handle of transmission control lever.
• Twist hand grip to select gear.
• The Transmission is equipped with four forward and three reverse gears
• Select appropriate gear for task being performed. Use a lower gear for transporting
a load. Use a higher gear only when driving unloaded for longer distances.
• Slow down prior to downshifting. Do not downshift more than one gear at a time.
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Section 3—Controls and Indicators
1st
2nd
3rd
4th
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