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Firemiks AB
Instruction manual version: SPFA FM
P.O. Box 8155, 104 20 STOCKHOLM, Sweden
phone +46-8-551 196 10 - [email protected] - www.firemiks.com
8 Troubleshooting
8.1 NOTE! It is extremely important that when troubleshooting the unit,
when it is not already running, you must assure yourself that the
unit cannot be started by mistake.
8.1.1 Close completely a shut-off valve in the main stream before the unit and
make sure it cannot be opened while you are working on the unit, see also
4.3.9. Note also WARNING SIGNS on the unit.
8.2
NOTE!
There is a risk for powerful jet streams of water at leakages
when the system is under pressure. Be sure to make the unit (and if
necessary the system) without pressure when doing service.
8.3 If the water motor and the concentrate pump is rotating but there is
no suction of fire-fighting additive, or the admixture is too low:
a)
If there is no admixture at all, stop the water flow immediately as
there is a risk that the concentrate pump is running dry that may
damage it.
b)
Check if there are any valves in the suction line that are closed or
partly closed or blocked filters in your installation.
c)
At suction scenario; check if there is air leakage in the suction line.
The pump will also be noisier when sucking air. Tighten the air
leakage in those cases. Also make sure that section 4.5 is fulfilled.
d)
Check that the stated minimum water flow is achieved. Increase if
necessary.
e) Flush also the concentrate pump a couple of seconds by
selecting Flushing Line position on the selector valve (No. 4
on Flow Chart) to flush out any air in the concentrate pump.
f)
Check that the maximum pressure (16 bar) is not exceeded. Lower
the system pressure if necessary.
g)
Check the oil level on the oil level indicator on the pump. If the
level is too low, fill again to required level and retest.
h)
Check the pump for leaks
i)
If the pump is noisy and capacity had dropped a third or two thirds
from normal, it is likely that one or two pistons or their suction or
delivery valve(s) is/are malfunctioning. Contact your distributor or
Firemiks AB for spare parts.