Run Circuit Operation - Husqvarna Z400 Series Service Manual

ELECTRICAL

Run Circuit Operation

The run circuit has a safety feature that turns the engine
off under the following operating conditions:
• The key switch is in the OFF position.
• The left motion control lever, the right motion control
lever, or both motion control levers are moved from
the neutral position, and the seat switch is released.
• The power take-off (PTO) switch is engaged and the
seat switch is released.
RED/BLK RED/BLK
YEL RED/BLK
B
A
S
S4
L Y
M G
BLK
WHT
PUR
RED/BLK
1 2
X6
X10
BLK
X11
S5
BLU
1
2
WHT
3
4
5
YEL
6
8 9 4 7 3 11
BLU
GRN
YEL
BLU
BLK
WHT
PUR
RED/BLK
X9
1 1
G1
When the key switch is in the OFF position, signal is sent
to the engine connector terminal 2 (white wire).
When the key switch is in the RUN position, the motion
control levers are engaged, the seat switch is released,
and signal is sent to the motion control lever relay
terminal 30 (blue wire). The relay sends signal to the
engine connector terminal 2 (white wire).
When the key switch is in the RUN position, the PTO
switch is engaged, the seat switch is released, and signal
is sent from the seat switch to the PTO switch terminal 9
(green wire). The PTO switch sends signal to the engine
connector terminal 2 (white wire).
BLU
7
8
GRN
9
10
11
YEL
12
GRY
G2
X14
Y3
M1
RED
Figure 6-52
6-38
S1
2 3
4 1
BLU
GRN
YEL
BLU
BLK
WHT
PUR
RED/BLK
RED
X4
1 2 3 6
WHT
1
X13
1
BLU
BLK
HUS1141
Z400 Series