Component Replacement Procedures
Replacing the USIOM Board
12
Figure 10. Remove Two T15 Screws Securing I.S. Cover
Figure 11. USIOM Board Snap-On Retaining Post
EB25918024
1
2
3
4
5
6
7
8
9
10
11
12
INTRIN
S
ICALL
Y
S
AF
E
W
IRING TERMINAL
S
W
ARNIN
G
:
S
U
B
S
TIT
U
TI
O
N
O
F
CO
MP
O
NENT
S
MA
Y IMP
AIR INTRIN
S
IC
S
AFETY
. INTRIN
S
IC
ALL
Y
S
AFE
C
IR
CU
IT
S
ARE AL
S
O
RA
TED
A
S
C
LA
SS
2
C
IR
C
UIT
S
. TERMINAL
S
ARE F
O
R
CO
NNE
C
TI
O
N T
O
I.
S
. T
A
NK
PR
O
BE
S
AND
S
EN
S
O
R
S
U
S
ED IN
C
LA
SS
1
G
R
O
UP D HAZARD
O
U
S
L
OC
AT
IO
N
S
.
MAX. AC
INPUT RATING
S
120/240 Vac, 2.0 A
MAX. RELAY
CONTACT RATING
120/240 Vac, 5A
3
0 Vdc, 5A
FU
S
E RATING, 5A
250 Vac TYPE T
(
S
LO-BLO)
MAX. EXTERNAL
CONTACT CLO
S
URE
CIRCUIT RATING
S
12 Vdc, 0.015A
N
G
L
0°C
≤
T
a
≤
50°C
FOR
S
UPPLY CONNECTION, U
S
E WIRE
S
RATED FOR AT LEA
S
T 90°C.
RELAY 2
RELAY 1
RTN
12V
PWR STAT
PWR INT
F1
F2
5A
(SLO-BLO)
F4
5A
(SLO-BLO)
F6 0.75A (SLO-BLO)
F7
EB25918024
2
3
4
5
6
7
8
9
10
11
12
INTRIN
S
ICALL
Y
S
AF
E
W
IRING TERMINAL
S
W
ARNIN
G
:
S
U
B
S
TIT
U
TI
O
N
O
F
CO
MP
O
NENT
S
MA
Y IMP
AIR INTRIN
S
IC
S
AFETY
. INTRIN
S
IC
ALL
Y
S
AFE
C
IR
CU
IT
S
ARE AL
S
O
RA
TED
A
S
C
LA
SS
2
C
IR
C
UIT
S
. TERMINAL
S
ARE F
O
R
CO
NNE
C
TI
O
N T
O
I.
S
. T
A
NK
PR
O
BE
S
AND
S
EN
S
O
R
S
U
S
ED IN
C
LA
SS
1
G
R
O
UP D HAZARD
O
U
S
L
OC
AT
IO
N
S
.
MAX. AC
INPUT RATING
S
120/240 Vac, 2.0 A
MAX. RELAY
CONTACT RATING
120/240 Vac, 5A
3
0 Vdc, 5A
FU
S
E RATING, 5A
250 Vac TYPE T
(
S
LO-BLO)
MAX. EXTERNAL
CONTACT CLO
S
URE
CIRCUIT RATING
S
12 Vdc, 0.015A
N
G
L
0°C
≤
T
a
≤
50°C
FOR
S
UPPLY CONNECTION, U
S
E WIRE
S
RATED FOR AT LEA
S
T 90°C.
RELAY 2
RELAY 1
RTN
12V
PWR STAT
PWR INT
F1
F2
5A
(SLO-BLO)
F4
5A
(SLO-BLO)
F6 0.75A (SLO-BLO)
F7
TH
MTG
MT
G
MTG
TH IS AREA REQUIRED
FOR I.S. SPACING
TH IS AREA REQUIRED
FOR I.S. SPACING