If the measurement is under size the parallel module is not fully open,
carry out module does not open procedure step above. If measurement is
over size, check the damper to side skin connection for tightness. If loose
tighten damper to side skin connection and re-check the measurement. If
the damper to side skin connection is tight and the measurement is
incorrect return the parallel module for jaw alignment system repair.
Report over size fault to maintenance.
♦ Retrieve the bridge parallel module and replace.
Check that the tilt rollers are in their lowest position.
♦ If tilt rollers will not lower, strip the bridge and report defect to
Check the slide frame wear pads for uneven wear. Report wear to
55. Boom forward and release bridge stops.
56. Boom to white C of G marker, using roller brakes and tilt roller, angle the
bridge to launch beam.
The following sequence covers operations 55 and 56 combined.
Bridge will not move.
Have the far bank carriage latches been released from the home bank
carriage? If yes, is the tilt roller setting height correct? If not adjust setting
height of tilt rollers.
Is the carriage caught on a launch beam pin, which is not fully inserted? Pull
back bridge and boom slowly forward to see if pin head is cleared. If
Booming forward - difficult/noisy.
Check that the bridge is not continuously rubbing against A-frame side wear
pad. Check and level A-frame.
Check for the free rotation of tilt and A-frame brake rollers during booming.
Report any seized rollers to maintenance.
Check that all carriage main upper rollers rotate during movement. Report
seized carriage main upper rollers to maintenance.
Check that all side rollers rotate. Report seized rollers to maintenance.
Bridge stop emergency will not release.
Check that bridge stop emergency are not being released too early and are
consequently under load.
Check the bridge stop emergency pivot for seizure. Clean/lubricate as
required. Report seized bridge stop emergency to maintenance.