14
GB
9- Dimensions
10- Fault finding
Thrust in wrong direction?
Change contactor wires on motor solenoid (See section 4.1).
Fuse keeps blowing?
‣ Wrong fuse fitted - check rating and replace.
‣ Propeller restricted or jammed causing excessive load on
motor - check and clear. Check that propeller washer is fitted
see Section 3.5.
Control panel does not illuminate?
Check
‣ Battery is connected.
‣ Main switch ON, check fuse.
‣ Control loom connections.
‣ Long operation has tripped thermal switch. Wait 20 minutes
for motor to cool and reset.
⚠ DO NOT attempt to cool motor by any other means.
Control panel illuminates but no thrust?
‣ Are batteries charged?
‣ Check main motor connections are tight.
Poor thrust or thrust in one direction only?
‣ Batteries not large enough or charged, cables not
recommended size.Voltage at motor when running should be a
minimum 10 V for 12 V and 21 V for 24 V units.
‣ Blockage in tunnel/propeller jammed with debris, switch off
main power, inspect and clear.
‣ Propeller washers fitted wrong. See Section 3.5
‣ Check motor brush springs are located properly, brushes
should have good contact with the commutator.
Motor turns but no drive?
⚠ DO NOT continue to run thruster.
‣ Shear pin broken, remove 4 motor bolts, see Sec. 6.2, drive out
old pin and replace with new pin.
‣ Propeller blades broken. Replace with new.
Thruster noisy and vibrating?
‣ Check propeller is not touching the tunnel wall.
‣ Check hub height is correct, see section 9.
A
B
C
D
MODEL
A
B
C
D
110TT
123 4 5/6 261 10 1/4 110 4 1/3
67
2 5/8
140TT2.0
123 4 5/6 305
12
140 5 1/2
73
2 7/8
Illustration based on
the 140TT2.0 model
