MAX POWER
R440 hydraulic motor driven Series - A conservative estimate of the maximum
overall and intermittent operating times for all the R300 models (before heat
accumulation produces too high a temperature in the hydraulic circuit)
Intermittently:
15 min at 20°C
Continuous operation:
5 min at 20°C
For longer service periods, Max Power recommends an optional heat exchanger and
water pump installation to provide extra oil cooling.
TROUBLESHOOTING GUIDE
PROBLEM
: Thrust stops almost immediately after it has been applied. The alarm
buzzer comes on and the green light turns off.
PROBABLE CAUSE 1
– The Raise/lower Electro-pump unit is not working correctly.
REMEDY :
Check that the Raise/lower unit has 24 vdc power to the motor. Check
that the pump operates in down position before the thruster starts.
PROBABLE CAUSE 2
- The green (B) position switches out of adjustment.
REMEDY
: Readjust the green (B) position switch by loosening its securing nut and
readjusting it closer to the actuator.
PROBLEM
: The thruster seems to be developing less thrust.
SECONDARY CAUSE
: Low oil pressure.
REMEDY
: Check pressure. Consult hydraulic technician
THIRD CAUSE
: Propeller problem (plastic bag, rope, etc…)
PROBLEM :
The turbine retracts, but the alarm does not stop or the red light does
not illuminate.
PROBABLE CAUSE
: An object such as a line, plastic bag, or other flotsam is
caught between the closing plate and the hull.
REMEDY
: Raise and lower the unit a few times to see if the object clears. If it does
not, try to remove the object manually.
WARNING
NEVER
put your hand into the opening of the hull.
PROBLEM
: The RETRACT will not open.
PROBABLE CAUSE
: No power (24 vdc) to the Raise/lower unit.
REMEDY
: Check the 20 amp or 15 amp fuse breaker in the control box,
Check that wire number 5 has power,
Check that power is available to the unit, by checking the voltage on
wires
n° 21 & 22 in the control box .
Check oil in the reservoir of R/L unit
Check joystick operation.
- 13 INSTALLATION MANUAL RETRACT R 450
