English (GB)
29
6. Engine does not
start.
a) Fuel cock closed.
Open the fuel cock.
b) No diesel fuel in the tank.
Fill tank with diesel fuel. Vent fuel system. See installation
and operating instructions for the diesel engine.
c) Fuel filter blocked.
Change fuel filter. See installation and operating
instructions for the diesel engine.
d) Air in fuel system.
Vent fuel system. See installation and operating
instructions for the diesel engine.
e) Water in fuel or wrong fuel.
Drain fuel from the fuel tank. Fill with new fuel. Vent fuel
system. See installation and operating instructions for the
diesel engine.
f)
Starter relay defective.
Replace the starter relay.
g) Insufficient power supply.
Check power supply to the control cabinet, batteries and
cables on the pump set.
h) Pump blocked.
Remove the pump and repair if necessary.
i)
Exhaust pipes blocked.
Remove foreign bodies from exhaust pipes.
7. Oil pressure is too
high or too low when
engine is running.
a) Oil filter blocked.
Replace the oil filter. See installation and operating
instructions for the diesel engine.
b) Water or fuel in the oil.
Change oil. See installation and operating instructions for
the diesel engine.
c) Oil level too low/too high.
Refill with oil or drain off oil. See installation and
operating instructions for the diesel engine.
d) Oil pump worn.
Replace the oil pump. Contact Grundfos.
8. Engine temperature
too high.
a) Insufficient cooling liquid.
Refill cooling liquid. See installation and operating
instructions for the diesel engine.
b) Diaphragm valve blocked or defective.
Clean or replace the diaphragm valve. As an emergency
measure, open the isolating valve of the bypass pipe.
c) Heat exchanger defective.
Replace the heat exchanger. Contact Grundfos.
9. Engine does not
reach rated speed.
a) Wrong speed setting.
Please contact Grundfos.
b) Fuel filter partially blocked.
Change the fuel filter. See installation and operating
instructions for the diesel engine
c) Air in fuel system.
Vent the fuel system. See installation and operating
instructions for the diesel engine.
d) Traces of water in the fuel.
Drain condensate from the fuel filter. See installation and
operating instructions for the diesel engine.
e) Turbocharger or intercooler defective
(not all models).
Replace the turbocharger or intercooler.
Contact Grundfos.
10. Battery voltage too
low.
a) Cell short-circuit in starter battery.
Replace starter batteries. See installation and operating
instructions for the controller.
b) Wiring of the battery charging circuit damaged
or insufficient terminal contact.
Check the wiring and replace if necessary.
Check terminal connections and tighten, if necessary.
c) Insufficient power supply to the control
cabinet.
Check the power supply.
d) V-belt tension too low.
Check the V-belt tension and correct if necessary.
e) Battery charger defective.
Replace the battery charger. Contact Grundfos.
11. Strong exhaust gas
colouring.
a) Dirty air filter.
Replace the air filter.
Fault
Cause
Remedy
Summary of Contents for Fire NKF
Page 1: ...GRUNDFOS INSTRUCTIONS Fire NKF Installation and operating instructions...
Page 31: ...English GB 31...
Page 267: ...BG 41 9 7 9 8 120 C 9 9 9 10 10 10 1 10 2 1 5 10 100 mm 10 Fire NKF TM05 2546 0212...
Page 274: ...BG 48 10 11 26 26 27 SUPPLY RETURN 27 10 12 Flex 11 TM04 9851 0211 TM04 5069 2609 A...
Page 276: ...BG 50 1 2 3 4 5 28 25 Nm 1 2 30 Nm 3 8 6 7 8 12 3 12 4 16...
Page 277: ...BG 51 13 16 6 14 1 2 3 29 25 Nm 1 2 30 Nm 3 8 29 5 1 2 1 2 12 TM03 3935 1206...
Page 278: ...BG 52 15 15 1 x x x x x x x x x x x x x V x V x x x x x x x x x x...
Page 280: ...BG 54 16 16 1 1 a b c d e 9 2 10 6 f g 2 a b c d 3 a 9 2 10 6 b c d e f g h i j 4 a b c d e...
Page 386: ...Appendix 385 Appendix 1 Exploded view of fire pump TM03 1508 2305...
