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NT 1005-C00 09 18 Pump AF TM H e
UTILISATION
Temperature of pumped product
AF TM H pumps are suitable for pumping domestic fuel and
heavy fuel heated up to 0° C and 180° C with the following
recommandations :
• before transfering heavy fuel, preheat the whole installation
• rinsing the installation with domestic fuel immediatly after
each operation with heavy fuel.
For others conditions of use, report to our Technical Department.
Pressure setting
To set bypass, remove cap
833
. To increase pressure setting,
turn adjusting nut
834
clockwise. To reduce pressure setting,
turn the nut counterclockwise.
When the setting is finished, dont forget to replace cap
833
.
With the bypass spring, it is possible to set the pressure bet-
ween 1,7 and 6,5 bar (valve closed).
Delivery adjustement
When the pump does not deliver the proper flow rate, the
trouble may come from bypass spring not being adjusted at
the correct pressure setting.
After making sure that the rotation speed is correct, tighten
adjusting nut
834
.
Should the spring be completely tightened or the motor ope-
ration disturbed, without getting the delivery wanted, it would
mean that the unit should operate at a higher pressure than
the pressure for which it has been designed. Please report to
our Technical Department.
Standard bypass use
Standard bypass use should not be operated too frequently
(even less permanently) since it would result in useless power
consumption and material fatigue detrimental to equipment.
