177
O
C
R
,
O
C
R
+
,
&
O
C
M
T
e
c
h
n
i
c
a
l
D
a
t
a
OCR,
OCR
+
,
&
OCM
T
e
chnical
Data
Product
Information:
Y
ear
Manufactured:
O
C
R
= 1961 - 1989,
O
C
R
+
= 1975 - 1988,
OCM
= 1961 - 1988
Serial Number Location:
Rear Center of bottom plate.
Serial Number Prefix:
OC
R
=
A4,
OCR
+
=
A8,
OCM
=
A3
Unique
Characteristics:
All
units
ha
v
e
metal
doors
.
The
OCM
and
OCR
doors
latch
on
the
left,
while
the
OCR
+
with
two
handles
latches
on
the
right.
The
most
ef
f
ectiv
e
wa
y
to
the
unit model is by the serial number and the prefix
O
C
R
,
O
C
R
+
,
&
O
C
M
T
e
c
h
n
i
c
a
l
D
a
t
a
OCR,
OCR
+
,
&
OCM
T
e
chnical
Data
Product
Information:
Y
ear
Manufactured:
O
C
R
= 1961 - 1989,
O
C
R
+
= 1975 - 1988,
OCM
= 1961 - 1988
Serial Number Location:
Rear Center of bottom plate.
Serial Number Prefix:
OC
R
=
A4,
OCR
+
=
A8,
OCM
=
A3
Unique
Characteristics:
All
units
ha
v
e
metal
doors
.
The
OCM
and
OCR
doors
latch
on
the
left,
while
the
OCR
+
with
two
handles
latches
on
the
right.
The
most
ef
f
ectiv
e
wa
y
to
the
unit model is by the serial number and the prefix