INOXPA HLR, Installation, Service And Maintenance Instructions

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16 7.Maintenance (A) 2021/11
7. Maintenance
7.1. GENERAL MAINTENANCE
This pump, as with any other machine, needs to be maintained. The instructions contained in this manual deal with the
identification and replacement of the spare parts. These instructions have been drawn up by maintenance staff and are
destined for those people who are responsible for supplying spare parts.
Read carefully Chapter 8.
Technical specifications
.
All the parts or materials that are changed must be duly eliminated / recycled in accordance with the
prevailing directives in each area.
ALWAYS disconnect the pump before starting out on any maintenance work.
7.1.1. Check the mechanical seal
Periodically check that there are no leaks in the shaft area. Should there be any leaks in the mechanical seal area, replace the
same pursuant to the instructions given in the
Pump Disassembly and Assembly sections.
7.1.2. Dry thread torque
Material
Dry thread torque [N.m.]
M5 M6 M8 M10 M12 M14 M16 M18 M20
8.8 6 10 25 49 86 135 210 290 410
A2 5 9 21 42 74 112 160 210 300
7.1.3. Oiling
The bearings are oiled by immersion in an oil bath.
The pumps are supplied with oil.
•
Regularly check the oil level, for example, weekly or every 150 operating hours.
• The first oil change must be carried out after 150 hours of operation.
• Afterwards, it can be changed every 2500 operating hours or at least once a year when operating under normal
conditions.
When change the oil: the oil sump must be filled up to the level in the middle of the peephole.
Do not pour too much oil into the sump.
Leave the pump switched off for a while and then re-check the oil level; if necessary, add a little oil.
Oils for environment temperatures of 5 to 50ºC: SAE 90 or ISO VG 220
PUMP SIZE
Quantity of oil in
the gear case (l.)
HLR 0 0,3
HLR 1 0,5
HLR 2 0,75
HLR 3 1,75
HLR 4 4,5
7.2. STORAGE
Before being stored the pump must be completely emptied of liquids. Avoid, as far as possible, the exposure of the parts to
excessively damp atmospheres.