Heavy Duty Assisted Lift Trunnion Operation and Maintenance Manual
Form Reference
C64.65546
Issue
5.00
16 of 39
Issue Date
May 2021
The signal and post should be checked for damage and any remaining transit packing materials
should be removed and correctly disposed of. The HD ALT bore is to be free of debris or other
obstruction and the Post Clamp should be loosened to enable the post to be inserted.
Where the HD ALT is to be installed in advance of the post and head installation, it is essential
to leave it in the horizontal position and correctly secured using the retaining pin which is
locked in place by the R pin and an RBK-221 padlock
Unlike the standard ALT and Winch Trunnion/Enclosure Base, it is
not
possible to carry out the
alignment of the signal without the head and post installed, as the HD ALT cannot be safely
raised to the vertical position without this load in place.
Installation
IF ANY DOUBT EXISTS ON THE SERVICEABILITY OR OPERATION OF THE HD
ALT AND/OR THE SIGNAL YOU SHOULD CONTACT UNIPART DORMAN IMMEDIATELY
It is assumed that the foundation for the particular signal has been installed and has been
accepted by the person responsible for structures prior to commencement of the installation.
Prior to the installation of the equipment, the lift procedure needs to be planned to in accordance
with all relevant regulations to ensure a safe method of working.
