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I'
"
Product
Modification
Pi
-
20
BATTERY
SC
RU
B
B
ER
Beginning
with
Serial
#I700
the
following changes
were made
to
the
brush
drive as
shown
on
Page
16
in
the .service manual. Retain
this
notice
in
your
manual
for
reference when ordering replacement
parts.
1.
Key
#44
-
Changed
to
rod
with
lock
nuts,
replacing the snap
rings.
2.
Keys
#1
-
2
-
3
-
4
-
6
-
35
-
72
-
73
-
74
-
75
-
76
-
77
-
Changed
drive plate,
brush
drive lock, and new gear
unit
assembly.
37
38
43
42
41
40
39
I
b-
I
18
(Rev.
3/91)