OM ET18/20/24 us 1.3 * et18_20_24b510.fm 5-49
5
5.12 Emergency lowering
Crushing hazard during boom lowering!
Causes severe crushing or injury resulting in death.
► Do not allow anyone to stay in the danger zone.
Lower the boom immediately after stopping the engine.
A load retaining valve prevents the boom from lowering. Observe the
following during emergency lowering:
1. Turn the starting key to position 1.
2. Lower the control lever base.
3. Actuate the corresponding control lever until the boom is completely
lowered.
4. Return the control lever to neutral.