SELVA MARINE Fin Whale 225 EFI, Service Manual

Page: 285 / 399

6AL3J11
7-36
1
2
3
4
5
6
7
8
9
Disassembling the PTT motor
1. Remove the PTT motor assembly, O-
ring, and joint from the PTT unit.
WARNING
Do not push the trim and tilt rams down
while the PTT motor is removed from the
PTT unit, otherwise fluid can spurt out.
2. Remove the PTT motor screws
1
, then
the stator
2
.
CAUTION:
Hold the end of the armature shaft with a
pair of pliers as shown, and then remove
the armature together with the PTT motor
base assembly, otherwise the armature
could separate from the base assembly
due to the magnetic force of the stator
2
and damage the brushes.
3. Remove the springs
3
, brushes
4
, and
oil seal
5
from the PTT motor base
assembly.
CAUTION:
Do not disassemble the PTT motor
assembly, otherwise the circuit breaker
6
may be damaged.
Checking the PTT motor
1. Check the commutator. Clean with 600 –
grit sandpaper and compressed air if
dirty.
2. Measure the commutator diameter.
Replace the armature if below specifica-
tion.
Motor commutator standard
diameter:
23.0 mm (0.91 in)
Wear limit: 22.0 mm (0.87 in)
PTT motor