nomad NTG40 TRANS-FLO, Operation Manual

Page: 7 / 13

6
Note: In the event of a power
failure, the shutoff valve should
be closed, if the restarting of
the pump is not desirable once
power is regained.
TROUBLESHOOTING
NTG40
NOMAD TRANS-FLO™
Pump will not run or runs slowly.
1. Check air inlet screen and air filter for debris.
2. Check for sticking air valve, flush air valve
in solvent.
3. Check for worn out air valve. If piston face in air
valve is shiny instead of dull, air valve is worn
beyond working tolerances and must
be replaced.
4. Check center block rings. If worn excessively, they
will not seal and air will simply flow through pump
and out air exhaust.
5. Check type of lubricant being used.
ISO 15-5 wt. recommended.
Pump runs but little or no product flows.
1. Check for pump cavitation; slow pump speed
down to match thickness of material being
pumped.
2. Check for sticking ball valves. If material being
pumped is not compatible with pump elastomers,
swelling may occur.
3. Make sure all suction connections are
air tight.
Pump air valve freezes.
Check for excessive moisture in compressed air.
Air bubbles in pump discharge.
1. Check for ruptured diaphragm.
2. Check for tightness for clamp bands,
especially at intake manifold.
Product comes out air exhaust.
1. Check for diaphragm rupture.
2. Check tightness of piston plates to shaft.
Pump rattles.
Create false discharge head or suction lift.
SUGGESTED INSTALLATION