Assembling The Ptt Motor - Yamaha 55DEHD Service Manual

4. Check the armature for continuity.
Replace the armature if not shown in the
chart below.
c
d
Armature continuity:
Tester probe
Segment–Segment
Segment–Armature core
Segment–Armature shaft
5. Measure the brush length. Replace if
below specification limit.
Brush standard length:
9.75 mm (0.384 in)
Wear limit g:
5.5 mm (0.22 in)
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.
6885J11
f
e
69R80320
c d e f

Assembling the PTT motor

1. Install new O-ring 1 springs 2 and
brushes 3, and then tighten the screws
4.
4
3
2
L
2. Connect the PTT motor leads 5.
5
G
PTT motor
3
1
2
G
68870740
L
68870750
7-44
1
2
3
4
5
6
7
8
9