Yamaha 55DEHD - Assembling the PTT Motor

4. Check the armature for continuity.
Replace the armature if not shown in the
chart below.
5. Measure the brush length. Replace if
below specification limit.
6. Check the PTT motor base. Replace the
motor base if cracked or damaged.
7. Check the oil seal. Replace the oil seal if
damaged or worn.
69R80320
c
e
fd
Armature continuity:
Tester probe cdef
Segment–Segment
Segment–Armature core
Segment–Armature shaft
6885J11
7-44
9
8
7
6
5
4
3
2
1
PTT motor
Assembling the PTT motor
1. Install new O-ring 1 springs 2 and
brushes 3, and then tighten the screws
4.
2. Connect the PTT motor leads 5.
Brush standard length:
9.75 mm (0.384 in)
Wear limit g:
5.5 mm (0.22 in)
5
L
G
68870750
1
4
3
2
3
2
L
G
68870740
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