Verification Of Thermal Protections; Painting Check (If Foreseen); Lubricant Oil Check; Hydraulic Oil System Check - OBL X9 Series Operating Manual

Operating manual
7.3.6

Verification of thermal protections

Make sure that motor thermal overload protection is not excluded and is correctly set. Proper selection
and setting of overload protection for ATEX pump motors is essential to ensure the temperature class and safety
against explosion dangers.
7.3.7

Painting check (if foreseen)

In a corrosive environment, and every time it is needed, it is necessary check periodically that painting does not show deterioration
signs which can jeopardize the equipment protection degree.
Repaint the pump every time it is needed in order to protect the external surface from corrosion.
7.3.8

Lubricant oil check

X9 pumps are always supplied with lubricant oil on the mechanism.
Check daily that oil level is at the halfway of the oil level indicator and that there are no leaks from dynamic seals or from plugs on the
mechanism. Verify there is no oil contamination which may compromise the correct lubrication. Replace if necessary (see "Lubricant oil
change").
7.3.9

Hydraulic oil system check

All hydraulic diaphragm pumps are always supplied with the hydraulic circuit filled with oil and ready for operation.
Make sure the tank cover is mounted and is always tightly closed.
Check weekly that oil level is at the halfway of the oil level indicator located on the tank, making sure there is no sludge or
contamination. Replace if necessary (see "Hydraulic oil system change").
7.4

RECOMMENDED SPARE PARTS

The most common faults can be solved by having the recommended spare parts in stock, thus avoiding unpleasant wastes of time.
7.4.1

Pumps with PLASTIC material pumphead

This list is indicative; we suggest proceeding as detailed in "Instructions for requesting spare parts".
Position
NOTE * Suggested quantity: SV= Single Valve pumphead (standard OBL); DV= Double Valve pumphead
7.4.2

Pumps with METALLIC material pumphead

This list is indicative; we suggest proceeding as detailed in "Instructions for requesting spare parts".
Position
NOTE * Suggested quantity: SV= Single Valve pumphead (standard OBL); DV= Double Valve pumphead
7.5

DISMANTLING, REPLACEMENT AND REASSEMBLY

The most common fault is caused by the directional valve of a dirty, clogged, worn, or even worse incorrectly mounted.
ATTENTION: In the case of dosing anomalies, BEFORE dismantling the hydraulic system (pumphead), verify
the actual conditions of pumphead directional valves (see "Valve verify and/or replacement").
File: UT-4336 – Rev.0
Component description
4 Plunger seal
5 Valve seat (Single Valve "SV")
6 Valve guide
8 Valve seat O-ring
9 Valve housing O-ring
15 Valve (sphere)
48 Diaphragm
Component description
4 Plunger seal
5 Valve seat (Single Valve "SV")
6 Valve guide
7 Valve seal
8 Valve seat O-ring
9 Valve housing O-ring
13 Valve seat (Double Valve "DV")
15 Valve (sphere)
48 Diaphragm
77 Valve guide O-ring
Copyright © - OBL Metering pumps - All rights reserved
X9 Series metering pumps
SV * DV *
2 2
2 2
2 4
2 4
2 2
2 4
1 1
SV * DV *
2 2
2 2
2 4
6 10
2 4
2 2
0 2
2 4
1 1
0 4
GB
Page 25