Heavy Duty Assisted Lift Trunnion Operation and Maintenance Manual
Form Reference
C64.65546
Issue
5.00
14 of 39
Issue Date
May 2021
Foundation and Site Checks
Foundations should be secure and clear of any obstructions with studs fitted as shown in the Pre
Installation Checks below.
The laydown area for the signal shall not contain any obstacle or rising ground
etc which would prevent the locking pin being inserted fully when the signal is
reclined to its horizontal position
A zone equivalent to the swept area of the signal being raised/lowered plus a reasonable margin
either side to allow adequate footing for personnel engaged in the lift should be established. This
zone should be firm and level with all hazards that could cause slips, trips or falls removed.
Example Safety Zone in place for lifting/lowering a signal
This image is for illustrative purposes only and does not represent the number, or placement of workers to enable a safe lift
During lifting and lowering all workers should stand to the side of the assembled
signal and never enter its swept area unless the unit is either secured in the horizontal
using the locking pin or securely bolted down in the vertical position.
