Intermac Primus 184 - Maintenance of the working head

11 Routine and special maintenance
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BIESSE S.p.A. © - p714k0003.fm251111
Maintenance of the working head
Daily
Check the abrasive delivery tube (if present) as it is subject to wear as a result of contact with the
abrasive itself. The tube may become excessively thin in places, then holes could lead to the
leakage of material and a consequential reduction in cutting power.
Make a visual check of the abrasive distribution system, ensuring there are no anomalies in the
passage from the propulsor to the batcher.
Weekly
Check the protective hood A on the cutting head is in good condition, with no tears that would
compromise the force of the jet during the cutting operation.
When necessary
The orifice and focusing nozzle are cutting head components that are subject to wear. The high
pressure jet must be visually inspected (without touching it under any circumstances) to make sure
it does not open out too much when leaving the focusing nozzle. Figure 2 shows the correct jet,
while figure 3 shows a worn jet.
Replace the orifice (fig.1) or focusing nozzle (fig.2), or both if necessary, using the special keys
supplied.
A
B