Mobility, Intelligent Traffic Systems
Sopers Lane, Poole, Dorset, BH17 7ER
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9 ROUTINE MAINTENANCE PROCEDURES
This section contains a list of checks that must be performed at an ST950ELV
installation on a regular basis (normally annually).
These instructions override any others that may exist. If a Site PI exists for the
specific site, it may contain instructions that should be carried out in addition to
those detailed below.
All power to the controller must be disconnected before any attempt is made to
remove the internal components of the controller.
Any change of lamp monitoring data will trigger an automatic relearn.
After such a change all relevant safety checks (all lamps working and so
correctly learnt, etc.) needs to be performed.
9.1 Routine Inspection of Signal Equipment
• Check all signal heads/aspects for damage and take any necessary corrective
action.
• Check all signal heads for correct alignment with their respective approaches.
• Check all pole top cable connections; ensure that they are sound, secure and
not seriously corroded.
• Check that all top caps are fitted and are not damaged.
• Check that all poles are secure in the ground and are not leaning or damaged.
9.2 Routine Inspection and Electrical Testing of Controller
It is suggested that these procedures be performed in the order listed.
Examine the outer case for serious damage. The outer case would normally only be
replaced if it has been damaged to the extent that its security has been breached or
that water or dirt is entering.
Open the main door and the Manual Panel door, check that the screw-locks, lock
and hinges operate freely. Inspect the door and lock, and check the lock and catch-
plate for security. Replace or tighten as necessary. Lubricate as necessary with
good quality penetrating type oil.
The key lock should not be operated unless the screw locks are tight, i.e.
Unlock the case before undoing the screw lock and only lock the case
after tightening the screw locks.
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