SELVA MARINE Wahoo 15 Service Manual page 282

TRBL
SHTG
Troubleshooting the power tilt unit (Power tilt model)
Symptom 1: Power tilt unit does not operate
Symptom 2
Power tilt relay
does not operate
Power tilt motor
does not operate
Power tilt motor
operates, but the tilt
ram does not
extend
WD: See the wiring diagram.
9-7
Troubleshooting
Cause 1
Blown fuse
Power tilt switch
malfunction
Short, open, or
loose connection of
the wiring harness
Power tilt relay mal-
function
Short, open, or
loose connection in
power tilt motor cir-
cuit
Power tilt motor
malfunction
Manual valve left
open
Insufficient power
tilt fluid
Power tilt fluid leak-
age
Clogged filter
Clogged fluid pas-
sages
Malfunction of the
power tilt unit inter-
nal parts
Cause 2
—
—
—
—
—
—
Manual valve mal-
function
—
—
—
Checking step
Check the fuse.
Check the power tilt
switch.
Check the wiring
harness continuity.
Check the power tilt
relay.
Check the wiring
harness continuity.
Disassemble and
check the power tilt
motor.
Check the manual
valve.
Add sufficient fluid.
Check the power tilt
unit for leakage.
Disassemble and
check the power tilt
unit.
9
Refer
to
page
7-47
7-49
WD
7-48
WD
7-31
7-38
3-13
7-43
7-38
6AG3J11