Lower Boom Removal - JLG H340AJ Service And Maintenance Manual

5. Remove the upper upright from mid boom assembly.
6. Remove mounting hardware from pin. Using a suitable
brass drift and hammer, remove the pin from tower lift
cylinder securing to lower boom assembly.
7. Remove mounting hardware from pins. Using a suitable
brass drift and hammer, remove the pins from lower
upright.
8. Using all applicable safety precautions, carefully lift mid
boom assembly clear of lower upright and lower to
ground or suitably supported work surface.
3121634

Lower Boom Removal

NOTE: The mid and lower booms together weighs approximately
1126.56 lbs. (511 kg).
1. Using a suitable lifting equipment, adequately support
lower boom assembly weight along entire length.
2. Attach an adequate supporting device to the tower lift
cylinder to support its weight.
3. Remove mounting hardware from pin. Using a suitable
brass drift and hammer, remove the pin from tower lift
cylinder.
4. Carefully remove the tower lift cylinder assembly from
lower upright.
5. Remove mounting hardware from pin. Using a suitable
brass drift and hammer, remove the pin from lower
boom timing link.
MAE16200
6. Remove mounting hardware from pins. Using a suitable
brass drift and hammer, remove the pins from lower
upright.
MAE16210
SECTION 4 - BOOM & PLATFORM
MAE16370
4-7