MAX POWER
stopped does not ventilate itself. All motors are equipped with a 120/130 c
temperature sensor that will sound the alarm buzzer if that temperature is reached.
For longer service, extra air cooling of the Electro-pump unit can be installed, such as
a forced air ventilating fan. Also increased battery capacity may need to be provided.
The thruster should always be used with charged batteries and with the main
engine’s alternator running and charging the batteries.
R300 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) depends on these factors.
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.
PROBABLE CAUSE
R300 ELECTRIC SERIES Battery voltage is low
R 300 motor pump SERIES Electro-clutch is slipping
REMEDY
Charge batteries.
Clean clutch .
SECONDARY CAUSE
Low oil pressure. Contamination of hydraulic oil filter. Etc…
REMEDY
Check pressure. Check and clean the filter (top of the reservoir). Check
condition of oil.
THIRD CAUSE
Propeller problem (plastic bag, rope, etc…)
14
INSTALLATION MANUAL RETRACT R 300
