1550 Inst
Issue 6 05/09/06
15
Transport Parallelism
The transport pressure plates are spring loaded to accommodate material
thicknesses from 3-50mm (0.125”-2”). The plates are mounted on linear guides, and
therefore will not twist to conform to the material. For this reason, it is important to
ensure that the pressure plates are parallel, so that the material being polished is
gripped all the way through the polishing operation.
To check and adjust transport parallelism:-
Select a piece of extruded material, thickness approximately 6mm, size approximately
450mm x 200mm.
Feed the material into the transport system, 25mm above the feedtrack level.
When equal amounts of material protrude from either side of the transport system,
switch off.
Rock the material, to check that it is being gripped equally across the transport
system.
Diagram 11. Checking for even Clamping
In the case of uneven clamping, remove the material, open the transport system and
adjust the parallel setting using the cap screws (1) in Diagram 12 below.
Diagram 12. Position of Adjuster Screws for Parallelism
Close transports and re-check.
Note : when closing transport systems always ensure that the heads of the adjusting
cap screws contact their stop point on the machine. Always adjust the transports
equally to ensure that material is fed parallel to the feed tracks.