lb-05046-03-EN Pag.64 22/01/2014
RECOMMENDATIONS FOR A CORRECT PREVENTIVE MAINTENANCE
The aim of this schedule is to prevent as far as possible equipment from breaking down, through the periodical check-up
and replacement of components subject to fair wear and tear, thus reducing service calls and relevant cost in working hours.
This schedule is based on the suppliers recommendations along with previous service history on equipment currently out in
the field.
It is designed to assist in extending the operational life of the equipment.
A. Pre delivery inspection:
We test all machines before shipping using water and at least 1/2Kg of coffee. Therefore we consider our machines ready to
installation.
Anyway we suggest to carry out a Pre Delivery Inspection on al
l machines before deliver them to final customer. PDI can
detect inconveniences which may occur during transportation or a long storage. For instance:
- screws and nuts which fit the body-work may become loose;
- flowmeter may be block by dust especially after long storage;
- screws which fit the power supply wires may become loose.
B. 2 or 3 weeks after installation:
Parts to be checked or adjusted:
1. the grinder/s settings
2. the dose settings
3. if daily cleaning of group and milk frother is carried out by the operator.
C. At 4 months’ intervals:
Parts to be cha
nged:
1. o-rings for milk frother
2. milk silicone tube for milk frother
3. o-rings for group pistons.
4. Internal mixer gasket
Parts to be cleaned or replaced (check and decide on site):
5. o-rings for the drip tray
6. group upper piston micro screen
7. group lower piston screen
8. milk frother
9. clean the hopper by the oil of the coffee
10. clean the coffee chute by means of a dry brush
Parts to be checked or adjusted:
11. grinder/s setting (coarseness of the coffee powder)
12. air adjustment for milk frother
13. coffee silicone tube
14. pump pressure should be 8-9 bars, check after had closed the coffee flow valve on upper piston
15. coffee boiler expansion valve should leak at 13 bars after a few coffee deliveries
16. front door induction switch
17. grounds beans tray induction switch
18. heating element of the brewing chamber (PTC), if it's not working check the fuse next to the group (yellow label)
19. check the gasket underneath the sweeper (it is glued to the sweeper)
Check the functioning of the machine with the customer:
20. dose settings (setting of milk frother, steam boiler pressure…)
21. that the double coffee spout delivers consistent quantity of coffee in the cup, if not replace it
22. check how many times the group cleaning procedure has been carried out
23. check how many times the milk frother cleaning procedure has been carried out.
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