ST700 GENERAL HANDBOOK
667/HB/27880/000 Page 77 Issue 8
6. ROUTINE MAINTENANCE PROCEDURES
This section contains a list of checks to be performed at an ST700 on a regular basis
(normally annually).
If for any reason, the power is switched off to the ST700, then a total installation
megger test should be carried out, as defined in the General Testing Handbook.
6.1 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.
6.2 ROUTINE INSPECTION AND ELECTRICAL TESTING OF ST700
It is suggested that these procedures be performed in the order listed.
Examine the Lid and equipment mounting frame for serious damage. The Lid 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 door(s), both the main (if the cabinet has one) and the manual panel;
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.
Undo the fixing bolt(s) and remove the Lid. Check the condition of the fixing bolts and
their associated chassis fixing thread, clean both and lubricate as necessary with
good quality oil. Inspect the stool-to-assembly seal and replace if necessary.
Inspect the manual panel gasket, ensuring it is intact and in the correct position.
Replace as necessary ensuring that the surface is clean before fitting.
Check the manual panel for any damage and replace if necessary. Check that all
functions operate correctly. Press the lamp test keypad and check that all LEDs are
operational.
The following tests will result in the signals extinguishing.
