Palfinger PC 3800, Operating Manual, Page: 59 / 158

Chapter 6 Ancillary equipment
Observe the safe distances given in
chapter 2 during all works you carry out
on the pulley head.
Winch components with composite pulleys
Danger!
When using composite pulleys exclusively, the inner braid
strands may break before the outer braid strands after longer periods
of use. This may lead to unexpected rope failure and falling down
loads.
At least one steel pulley must be used. When using composite pulleys exclusively, the inner braid
strands may break before the outer braid strands after longer periods of use. Therefore rope breakage
may not be detected during normal inspection.
Single-strand winch operation with composite pulley head (1) is prohibited. The lower load block must
be equipped with a steel pulley (2). Single-strand winch operation is not permitted.
1
2
Rope deflecting angle
Note!
In order to keep the rope deflecting angle (
α)
as small as
possible, extend at least one extension boom completely before
winch operation.
Purpose:
•
This will lead to better rope winding behavior.
•
Small entry angle into rope pulleys.
53