Walker MT - Manual (Page 86)

82
Maintenance Instructions ADJUSTMENTS/
ELECTRICAL SYSTEM
Checking the Grass-Pak
®
Switch
Adjustment (When Horn Sounds at the Wrong Time)
Very little, if any, adjustment to the Grass-Pak
®
switch is required. However, to fine tune the timing
of the full signal, the vertical position of the switch
vane is adjustable approximately 3/4 in. (1.9 mm).
1. Loosen the screw mounting the vane on the
switch and adjust the position of the vane as fol-
lows:
a. Move the vane UP to delay the signal.
b. Move vane DOWN to advance the signal.
2. Retighten the screw.
NOTE: It will not be possible to adjust the switch to
give a signal at the precise instant the catcher is full
for a wide variety of mowing conditions. For exam-
ple, wet heavy grass will fill the catcher differently
than dry, fluffy grass, causing the signal to come on
a little sooner or later than usual. Primarily, the
switch should be adjusted to give the “full” signal
with a little advance warning before overfilling
and clogging of the grass delivery chute begins (re-
gardless of mowing conditions).
Grass-Pak
®
Switch Vane Adjustment
ELECTRICAL SYSTEM
For troubleshooting, refer to Wiring Diagram.
IMPORTANT: Disconnect both battery cables be-
fore unplugging any wiring connectors or making re-
pairs on the electrical system.
IMPORTANT: Disconnect the battery cables before
unplugging and removing the instrument panel.
Circuit Breakers
A master circuit breaker is mounted on a bracket be-
hind the battery. The circuit breaker may have either
the manual or automatic reset function -- both types
have been used. See Circuit Breaker Location
photo.
Circuit Breaker Location
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
Advance
Adjustment
Screw
Delay
30 Amp
Circuit Breaker
Circuit Breaker
Mounting Bracket