Walther prazision 91489, Руководство по эксплуатации

Страница: 35 / 191

Working instruction
english
typ 91489
Commissioning,
operation and maintenance
35
9.2 Preventive checks
WALTHER tool changers are to be operated in such a way that external damages
especially all moving parts, fluidic elements and electro plugs are excluded.
According to our practical experience multicouplings will give long-term, trouble
free service if care is taken to recognize and repair any possible damages in good time.
Preventive visual checks are to be carried out once a week or after 10,000 couple
cycles each; furthermore the contact pins are to be checked after approx.
100.000 coupling cycles for mechanical damage and have to be cleaned and lubricated.
9.2.1 Check of mechanics (base modules)
- Please observe the interference fit of all screwed cable glands.
- Check for cracks and deformations, especially:
- emergency unlocking ring item 19
- cylinder cover item 3
- guiding bolt item 8
- mounted parking subassemblies
- Check for ball impressions/scorings, especially:
- locking ring item 6
- locking bush item 53
If ball impressions/scorings are clearly visible and can be made out by touching
a lock function test is to be carried out by cutting of compressed air after a couple process.
Caution:
Carry out function test in the area of the tool parking station
(lifted by approx. 3 mm) only!
If cracks and deformations are stated the tool changer is to be stopped for repair
and in case of a safety locking malfunction as well!
9.2.2 Check of control elements
1. Visible check of the limit switches, proximity switches and press switches for
deformations at the switch and damages of the connection cables!
2. Check switches by hand on interference fit.
3. Check of state of switches automatically follows from trouble free service according
to flow chart and/or indication LED with appropriate piston and plate position (see item 3).
4. Defect control elements are to be exchanged.