Afriso EURO-INDEX KAV, Operating Instructions Manual, Page: 44 / 76

Troubleshooting
KAV 19
7 Troubleshooting
Table 4: Troubleshooting
Problem Possible reason Repair
Oil cannot
be sucked
in or
steady
flow keeps
being in-
terrupted Screw connections
between KAV and
fuel oil consumer
not tight

Seal the suction line, see chapter 5.1, page 9

Check all sealing surfaces for damage

Close the shut-off valve at the withdrawal fit-
ting and perform a vacuum test (at least
-0.6 bar) at the supply connection of the fuel oil
de-aerator or the fuel oil filter.
Fuel oil consumer
does not generate
a vacuum

Perform a suction test at the pump. The pump
must generate a vacuum of at least -0.4 bar.
Noise
problems Oil supply unit
does not generate
a vacuum

See above
Air cushion be-
tween KAV and
fuel oil consumer

Seal the suction line, see chapter 5.1, page 9

Commissioning with an external suction pump
which allows for complete evacuation of the
line
Suction line di-
mensions too great
(DIN 4755)

Adapt suction line
Other mal-
functions
– 
Send the product to the manufacturer
8 Spare parts and accessories
Part Part no.
Piston type anti-siphon valve 20240
Pressure gauge 70030
Tester anti-siphon valve 20239