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Dealer Service 21
MAN0875 (2/8/2011)
TROUBLESHOOTING ENGINE
Engine Dies When Steering Handles
are Engaged
1. Check if parking brake is set.
• Release parking brake.
NOTE: When parking brake is on the system is
designed to kill the engine if either steering handle is
engaged.
NOTICE
■ The following test must be performed with an
accurate voltmeter. The amperage in this circuit is
too low for a test light. This circuit is the ground
side of a relay.
2. Check seat switch and deck safety switch/jumper.
a. Raise seat assembly and secure.
b. Turn key switch “ON”, engage seat switch and
move deck to highest cut height position if
equipped with power tilt deck.
c. Check voltage at the pink and black wires on the
main wire harness where it connects into the seat
switch wire harness. (2 way Packard 56 series con-
nector located underneath seat pan on the right
side next to steering pivot block.)
• If there is voltage at one wire but not the other,
either the switches/jumper are defective or not
fully engaged. The pink and black wires are part
of a series circuit that includes the seat switch
and deck safety switch (on power tilt deck) or
weatherpack jumper.
• If there is voltage on only one wire check each
switch ((seat switch, deck safety switch, (located
on the deck), or weatherpack jumper)) individu-
ally to determine which switch is defective or not
closed. The weatherpack jumper should be con-
nected to the main wire harness, underneath the
seat pan by the left hand steering pivot linkage if
there is not a deck or a standard deck is
attached.
• If using the power tilt option and you need to
check the deck safety switch refer to Figure 11
and troubleshooting deck safety switch. If the
deck switch is open the engine will kill when pull-
ing handles in.
Figure 11. Power Tilt Deck Safety Switch Layout
3. Check park brake switch.
PROBLEM POSSIBLE CAUSE SOLUTION
Engine will not crank PTO switch is “ON” Switch to the “OFF” position
Steering handles are not in “Posi-
tive Neutral”
Swing steering handle outward
Battery is discharged Charge or replace battery
Starter fuse is blown Replace fuse
Steering handle switches are out
of adjustment
Listen for the switch “click” and
adjust as necessary
Engine cranks but will not start Fuel tank is empty Fill fuel tank
Fuel line or fuel filter is restricted Bleed fuel line or replace fuel filter
Ignition fuse is blown Replace fuse
Loose wires or connections Inspect wire connection and safety
switches