Heavy Duty Assisted Lift Trunnion Operation and Maintenance Manual
Form Reference
C64.65546
Issue
5.00
22 of 39
Issue Date
May 2021
Once the connection is made, the Plug Couplers should be stowed in the connection box with
the signal cable fitting into the cutout in the mounting plate, making sure the cable maintains a
smooth bend radius.
Enough spare cable is provided on the signal side of the connection to allow the signal to be
folded down without disconnection. This excess is simply tucked back into the post for stowage.
Fit the connection box cover ensuring the cable is central in the cut out at the base of the box
and the cable is not damaged or pinched. Secure the cover with a padlock.
The HD ALT should be bonded to earth if required by the use of bonding straps. No specific
earth bonding arrangements to the signalling elements are required by virtue of the double
insulated design, however a 17 mm through hole is provided on the base plate.
Signal Alignment
GREAT CARE SHOULD BE TAKEN TO ALIGN THE SIGNAL IN STRICT ADHERENCE
TO THE SIGNAL SIGHTING FORM REQUIREMENTS
Detachable Alignment Scope
The Unipart Dorman Detachable Alignment Scope is an optical device that allows accurate
signal alignment and is common to both iLS and CLS LITE. It is stored in a bespoke carrying
box and should be returned to Unipart Dorman annually for an alignment verification check.
There is an adaptor bracket available that enable a suitable camera to be fitted to the scope.
The camera and mount are subject to their own separate instruction sheets available on the
Unipart Dorman website.
