Cold Jet PR750H - Warranty Terms and Conditions; Cleaning the PR750 H

PR750H
User manual
Version: 5
Page: 19 of 21
Date: 2023.05.25
REPAIR AND WARRANTY
Repair
The repair/replacement of the following parts must be made by qualified personnel:
• Oil, filter on the hydraulic system.
• Filter for the liquid CO
2
.
• Degassing filter on the extruder.
• Piston ring on the extruder.
When making repairs/replacements, use only original Cold Jet spare parts.
MAINTENANCE
Inspections to be carried out every week: Hydraulic station:
Inspect for oil leakages, Check hoses, fittings, valves, and connections for leakages. Reseal if necessary. Check the oil level,
in the sight glass on the hydraulic tank side. Refill if necessary.
Degassing system:
Check the degassing system. Check the degassing for snow particles at the CO2 outlet (can only be done when dry ice is
being produced)
Snow particles at the CO2 outlet indicate that the degassing filter is damaged. Replace the filter and gasket as described
under in this manual.
Inspections to be carried out every 400 hours / 3 months: Liquid CO2 filter:
Hydraulic station:
Check the oil. Drain a small quantity of oil – 1 dl – from the hydraulic tank. Inspect the oil visually. If the oil is not clear,
bright, and light yellow it must be changed. Get a particle analysis of the oil if in doubt about the contamination degree.
Cold Jet recommends that the owner has a spare parts package in stock, so repairs can be made quickly and with little loss
of production time.
For each service interval there is a list of necessary procedures and the Cold Jet article no. for spare parts package. For
more information about the procedures and maintenance look at I appendix: Mechanical maintenance PR750H/PR350H.
Safety device replacement intervals
The expected lifetime is 20 years or 100,000 couplings on electromechanical components (contactors and relays) whichever
is the grater.
Table 1. Table for mechanical maintenance Pelletizer PR750H
Service interval Hours/Month Procedure no. Cold Jet article no. Spare parts
package.
2000 Hours / 12 Months. 1,2,3,4,6,11 501891