îî
10.80 10.80 Electrical Electrical systemsystem
Important!îImportant!î
If the S44 switch is If the S44 switch is closed, PC is shown in the display for hydraulic inputs. Ifclosed, PC is shown in the display for hydraulic inputs. If
S45 is closed, PCC is displayed instead.S45 is closed, PCC is displayed instead.
10.15.1410.15.14Low temp drive/Low temp hydLow temp drive/Low temp hydraulraul
Drive the truck Drive the truck at a reduced speed and reduced load until at a reduced speed and reduced load until the regulator has warmedthe regulator has warmed
up to approx. 20 degrees up to approx. 20 degrees for full operating cfor full operating capacityapacity..
OrOr
Drive the truck in a Drive the truck in a heated building until the regulator has reached the temperatureheated building until the regulator has reached the temperature
for full for full operating capacityoperating capacity..
10.15.1510.15.15High/LoHigh/Low voltage - EPS 2001w voltage - EPS 2001
Check that the voltage is withinCheck that the voltage is within
the range 33.6 the range 33.6 - 62.4 - 62.4 V DC underV DC under
operation.operation.
Do errors occur when the mainDo errors occur when the main
contactor K10 is open?contactor K10 is open?
YYeses
Check that the components in theCheck that the components in the
EPS charging circuit are intact.EPS charging circuit are intact.
Fuse F12 and resistor R300. SeeFuse F12 and resistor R300. See
relevant trouble shooting chart forrelevant trouble shooting chart for
more information on error codes.more information on error codes.
NoNo
Look for voltage drop in the pathLook for voltage drop in the path
of the current from the battery toof the current from the battery to
the EPS unit, and from the EPSthe EPS unit, and from the EPS
back to B-. Check the fuse holderback to B-. Check the fuse holder
and fuses F18 and F19, as well asand fuses F18 and F19, as well as
B- and F2.B+. Check B+ extraB- and F2.B+. Check B+ extra
carefully.carefully.
Replace EPS.Replace EPS.
Check that high resistance or a badCheck that high resistance or a bad
connection are not present in theconnection are not present in the
battery cable to the B+ and B-battery cable to the B+ and B-
regulators.regulators.
A regenerative drive regulatorA regenerative drive regulator
could raise the voltage in thecould raise the voltage in the
supply cables and the resistance issupply cables and the resistance is
too great.too great.
Replace EPS unit.Replace EPS unit.
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