Buhnen HB 5010, Translation Of The Original Operating Manual

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What happens if…
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9 What happens if…
For occurring malfunctions and faults, first check
• the power supply and all electrical connections
• whether the main switch and the pump switched have been turned on
• whether the temperature values for the utilized hot melt adhesive have been set cor-
rectly
If defects occur, a protective circuit protects the tanks in any case from being heated to
temperatures exceeding 260 °C.
9.1 General errors
Fault Possible cause Remedy
Breakdown of a single component
(e.g. hose heater, tank heater,
controller, …)
Associated fuse is defective Check fuse, replace as necessary
(see Chap. 8.4)
Temperature fluctuates strongly or
application system does not heat
Defective temperature sensor Replace
Defective control unit Replace
No or insufficient hot melt material
is discharged
Hot melt tank is empty Fill up
Hot melt material viscosity is too
high
Observe processing notes of hot
melt material manufacturer
Application unit nozzle is clogged Clean
Pump pressure is set too low Increase pump pressure
(see Chap. 7.2)
Defective gear wheel pump Replace
Filter cartridge polluted Replace (see Chap. 3.3 in Part 7
„Maintenance Schedule“ of this
manual)
Pump does not work Pump has not been released yet.
Indicator light (4) does not light up
Wait until temperature has been
reached
Hot melt material has not melted
or viscosity of hot melt material is
too high
Allow hot melt material to heat
thoroughly, increase working tem-
perature as necessary
Motor overheats
The thermal switch in the motor
has switched off
Allow motor to cool down and
determine cause
Start-up capacitor of motor is
defect
Have start-up capacitor replaced
(only by qualified service person-
nel!)
Defective motor Have motor replaced (only by
qualified service personnel!)
Fuse F1 is defective Check fuse, replace as necessary
(see Chap. 8.4)