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 4 261 10 ¼ 110 4 ⅓ 67 2 ⅝
140TT2.0 123 4 305 12 140 5 ½ 73 2 ⅞
Illustration based on
the 140TT2.0 model
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