Putzmeister BSA 1409 D4, Руководство по эксплуатации

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Pumpingoperations
620
AP07_056_0304EN
Do not exceed the permissible engine speed specified in the ma
chine card and on the machine rating plate. Always set the engine
speed higher than the vibrating speed. Do not shut down the engine
immediately after periods of heavy engine loading, but first allow it to
cool down at idling speed.
During normal pump operation, the temperature of the hydraulic fluid
is between 70
_
C and 80
_
C.
The following may cause the hydraulic fluid to overheat, particularly
ifseveral factors coincide:
− continuous operation under high load
− high ambient temperatures
− too little fluid in the hydraulic system
− dirty hydraulic fluid radiator
− insufficient radiator ventilation
− hydraulic fluid radiator sucking in hot exhaust gases
− excess pressure as a result of a blockage
− too little water in the water box.
All pumps have a thermo − electrical cut − out. The pump is automati
cally shut down if the fluid heats up to over 90
_
C. The engine keeps
running to provide cooling and a red indicator lamp lights up on the
control cabinet. Proceed as follows to prevent a shut
− down in the
middle of pumping when a fault is indicated:
"
Reduce the output.
"
Fill the water box with fresh water as soon as the fluid tempera
ture rises above 80
_
C.
6.9.5 Engine
6.9.6 Overheating