JUNTTAN PM 20L Operator's Manual page 79

JUNTTAN
Pile fast sinking in the soft soil:
• Sometimes the pile may sink faster if the soil is soft below the pile.
• In this case the hammer stroke must be stop with piling interruption switch on the
left console.
• The hammer and pile winch brakes are open during interruption.
• When sinking is finished start continuous hammer operation again, switch OFF
piling interruption switch.
Daily operation section
79