Electrical
91
Key switch
The key switch used on tractor equipped with the stan-
dard electrical system is a three position 5-pin switch.
1. In the OFF position:
• Continuity can be found between the G and the M
terminals.
2. In the RUN position:
• Continuity can be found between the L and the B
terminals.
3. In the START position:
• Continuity can be found between the L, B and the
S terminals.
The Key Switch is similar to those used in a variety of
MTD applications since 1999. The difference, in this case,
is that it is incorporated in the same housing as the OCR
module; the two items are not available separately.
See Figure 7.3.
NOTE: The 7-pin and the 8-pin modules use the same
switch.
1. In the OFF position:
• Continuity can be found between the M, G, and A1
terminals.
2. In the NORMAL RUN position:
• Continuity can be found between the A1 and the B
terminals.
3. In the RUN w/OCR position:
• Continuity can be found between the A1 and the B
terminals.
• Continuity can be found between the A2 and the L
terminals
4. In the START position:
• Continuity can be found between the A1, B and the
S terminals
Figure 7.2
G
L
M
B
S
Figure 7.3
Key
Switch
OCR Module
Front
Back
.H\VZLWFKVFKHPDWLF
/
0
$
$
*
6
%
/
0
$
$
*
6
%
/
0
$
$
*
6
%
/
0
$
$
*
6
%
2II
6WDUW
5XQZ2&5
1RUPDOUXQ
Figure 7.4
FOR DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983
www.mymowerparts.com
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