7 Maintenance and inspection
12
We reserve the right to make technical modifications
Rittal Support rail cutter MC3
EN
7
Maintenance and inspection
7.1
Maintenance and inspection of the shear plate
The support rail cutter normally requires minimum maintenance and has a long
service life. If, however, impairments occur during operation so that the shear
plate no longer returns to its initial position, this can be caused by inadequate
lubrication or jammed swarf.
Warning!
The profile cut-outs of the shear plate have very sharp edg-
es!
Wear protective gloves for maintenance and cleaning
work.
Also wear safety boots and safety goggles.
To clean the shear plate and the interior of the cutting unit, the following pro-
cedure is possible:
Fold the actuating lever (fig. 9, item 1) completely back.
Loosen the two M8 bolts (fig. 9, item 2) on the lower side of the unit.
Because these bolts pretension the return springs, they must be released al-
ternately in small steps to prevent jamming of the lower plate.
Remove the shear plate from the unit from below (fig. 9, item 3).
If the shear plate is jammed excessively, loosen the eight M10 bolts at the
side by one half turn and press out the shear plate.
Inspect the shear plate for damage and scratches or breakouts at the cutting
edges.
Clean the shear plate thoroughly, remove any adhering swarf and apply uni-
versal grease copiously on all sides.
Clean the interior (fig. 9, item 4) of the cutting unit and purge with com-
pressed air.
Relubricate all surfaces thoroughly with universal grease.
Warning!
When working with compressed air, flying parts or swarf
can cause injuries.
Wear safety goggles.
Ensure no persons are in the vicinity.
When assembling the shear plate, insert the springs in the lower holes of the
shear plate and tighten the lower plate alternately in small steps with the two
M10x25 bolts.
If necessary, also retighten the eight bolts at the side.
Torque for these M10 bolts, each 20-30 Nm.
Check the correct functioning and the smooth-action.
