JUNTTAN Daily operation section
64
6.4.2 LOWERING THE LEADER
6.4.2.1 PREPARATION FOR LOWERING THE LEADER
Drive the machine to even and solid ground. Swing the machinery deck parallel to the
undercarriage. Slight ground slope forward (max 5º) is allowed. Ground inclination to
the side and backward is forbidden during lowering.
n DANGER
Hammer or other winch operated equipment must be locked always to the leader or to
be removed before using the leader lift device.
CHECK LIST PRIOR TO LOWERING THE LEADER
1. There is sufficient headroom for the leader to be lowered safely.
2. All the ropes are in their grooves in pulleys and drums.
3. All the ropes and hoses are free to lower with the leader.
4. The winch ropes are attached to the equipment.
5. The equipment (hammer, rotary head) is locked to the leader.
6. The ram block is locked to the hammer frame.
7. The leader is locked to the basic leader.
8. The leader foot is on the ground.
9. The horizontal slide is fully in.
10.The safety lever in the cab is in the forward position.
n ATTENTION
If the horizontal slide and the lateral inclination cylinders are not in their proper
positions, you can damage the inclination cylinders when lowering the leader. There
are proximity switches for these positions. If the switches are not activated, the leader
lift device will not move. Do not move the horizontal slide while lowering the leader.
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