Walker MS (13 HP) - GHS Full Signal Horn with Grass-Pak Switch

Maintenance Instructions ADJUSTMENTS
70
6. Recheck idle speed after the final idle mixture
adjustment.
GHS “Full” Signal Horn with Grass-Pak

Switch
If the GHS “full” signal horn is not sounding or is not
adjusted to sound when the catcher is full, the fol-
lowing troubleshooting and adjustment instructions
apply:
Troubleshooting (When Horn Fails to Operate)
1. Check the horn.
a. Disconnect the two wires from the Grass-
Pak

switch electric connector plug and
make a jumper wire connection between
these wires (bypassing switch).
b. Turn the ignition switch ON and move the
blade clutch to the ENGAGED position (en-
gine not running) to make the horn sound.
c. If the horn does not sound, the horn is bad
and needs to be replaced.
d. If the horn does sound, proceed to step 2.
2. Check the Grass-Pak

switch.
a. Reconnect the wires to the Grass-Pak

switch electric connector plug.
b. Turn the ignition switch ON and move the
blade clutch to the ENGAGED position (en-
gine not running).
c. Open the catcher back door and trigger the
Grass-Pak

vane by hand as it oscillates.
d. The horn should sound as the switch is
moved in both directions. If the horn does
not sound, the switch is bad and needs to be
replaced.
Checking the Grass-Pak

Switch
ELECTRICAL SYSTEM
For troubleshooting, refer to the Wiring Diagram.
IMPORTANT: Disconnect both battery cables be-
fore unplugging any wiring connectors or making re-
pairs on the electrical system.
WARNING
DO NOT test the Grass-Pak

switch with
the engine running. Projectiles CAN be
thrown out of the grass delivery spout and
CAN cause serious injury to bystanders or
property damage.
Grass-Pak

Vane Switch