Technical Reference Manual for
OMNI-A0092
Author
C. Vale
Creation Date
2010-04-29
Product
OMNI-A0092
Revision Date
Name:OMNI-A0092_TRM.doc
Company Confidential
Version 1.0
Page 25 of 55
3.1.10 Hoist to vertical position
1)
The winch operator can now resume hoisting the mast until it is in a vertical position.
Figure 15: The mast in the vertical position
2)
The winch operator should be informed to stop turning the winch handle as soon as the
primary guy rope at the back of the mast is sufficiently tensioned. This is very
important as the winch operator will not be aware when this point comes.
3)
NB! It is the purpose of the winch only to hoist the antenna to the vertical position, not
to tension the guy rope system. Over-tightening the winch can damage the antenna.
The winch provided is extremely geared, and it is easily capable of
destroying the antenna assembly if it is over-tightened at this stage.
Continued tightening of the winch will eventually lead to failure of the
collar at the top of the mast, and certain destruction of the antenna
system, as well as highly likely serious injury to the operators.
Personnel not manning the winch should stay well clear of the region
behind the mast whilst it is being hoisted. In case of mechanical
failure, the mast will fall back into the enclosure and critically injure
any person occupying that space.
