PR120H
MECHANICAL MAINTENANCE
Version: 5
Page: 1 of 24
Date: 2022.12.13
MECHANICAL MAINTENANCE
Repair
The repair/replacement of the following parts can be made by the owner’s 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.
Terms of Warranty
In order to comply with the terms of the warranty, and for safety reasons, repairs other than those stated above require
relevant tools and equipment and therefore must always be made either by a Cold Jet technician or by the owner’s qualified
personnel who has been trained by Cold Jet in the repair and maintenance of Cold Jet dry ice blasting and dry ice production
machines and accessories. Beyond the necessary knowledge, the person concerned must have appropriate tools and
equipment, as well as the auxiliary materials required, at his disposal.
The liability of the manufacturer under the terms of the CE endorsement as regards safety may become invalid:
•
If repairs are made using non- Cold Jet spare parts.
•
If repairs are made by unqualified personnel.
•
If repairs are unsatisfactory due to lack of relevant tools and equipment.
In such cases, the liability of the manufacturer will be solely confined to any manufacturing faults/errors made prior to the
machine being delivered and before repairs/replacements have been made.
TABLE FOR MECHANICAL 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 degassing system. Check 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 Procedure 2.
Inspections to be carried out every 400 hours / 3 months: Liquid CO2 filter:
There is a fine filter placed inside the machine. Remove the 4 screws (1) and clean (3) and (4). See procedure 1. Replace
parts if necessary.
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 recommend the owner to have a spare part package in stock, so repairs can be made quickly and with a very little
loss of production time.
Spare part package standard Cold Jet article no. 504786
Spare part package extended Cold Jet article no. 504787
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