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318
OPERATION
No.
ID
532-3
: Work
on the dynarrzo
ID
19
25
26
27
28
29
30
31
32
33
34
35
36
Remove
the
positive
brush
(20)
and
the
negative
brush
(21).
37
Clean
the
parts.
38
Check
the
armature
shaft
on
Vee
blocks
or
between
centres.
OVERHAULING
A PARIS-RHONE
G. 11 -R.
9 1 DYNAMO
I
Dismantling
(see
Pl.
116
and
117).
Remove
the
driving
pulley
(1)
and
remove
the
key
(2).
Knock
back
the
tabs
of
the
lockwasher
(3)
remove
the
nut
and
the
screw
(4)
fixing
the
end
bearing
plates
(5)
and
(6).
Remove
the
end
bearing
plate
(5)
driving
side
with
the
armature
(7).
Remove
the
end
bearing
plate
brush
holder
(6),
disconnect
the
terminal
(8)
from
the
positive
brush
holder
. .
. . . . . .
Remove
the
end
bearing
plate
(5)
from
the
armature
(7)
in
a press,
if necessary.
7 mm
box
spanner
Remove
the
closing
plate
(10)
by
grinding
the
rivets.
Take
out
the
bearing
(11))
from
the
end
bearing
plate
(5).
Unsolder
the
connection
(12)
of the
field
coils
(13).
Unsolder
the
terminal
(14)
from
the
end
of
the
yellow
field
cable.
Withdraw
the
cable
from
the
she
'.th.
Remove
the
earth
terminal
(15)
f rom
the
field
coils
by
driving
out
the
rivets
(16).
To
remove
the
field
coils:
4
Mark
and'remove
the
pole
pieces
(17)
( use
the
special
screwdriver
MR-1601-4,
fitted
on
a bench
press,
seePl.lZZ).i
Screwdriver
MR-1601-4
b)
Remove
the
pole
pieces
(17)
and
the
field
coils
(13).
Drive
out
the
bush
(18)
from
the
end
bearing
plate
brush
holder
(6)
and
the
closing
plate
(19)
using
a shouldered
mandrel
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..'................................
Assembly
(see
~1.116
and
117).
Shouldered
mandrel
Small
dia.
= 16.8
Length
= 15
Large
dia.
= 20
Length
= 150
39 I
Check
the
insulation
of the
armature
with
a suitable
insulation
tester.
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