Page: 4-71
WALKER MANUFACTURING COMPANY
July 2006
SERVICE INSTRUCTIONS
GHS “Full” Signal Horn with Grass-Pak
®
Switch -
Model MS, MC, MD, MT
Model MC, MD, MT
If the GHS “full” signal horn is not sounding when the
catcher is full, the following troubleshooting instructions
apply:
Model MS
If the GHS “full” signal horn is not sounding or is not ad-
justed to sound when the catcher is full, the following
troubleshooting and adjustment instructions apply:
Model MS, MC, MD, MT
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
(engine 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
(engine 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
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
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