Using The Tilt-Up Deck; Using The Ghs Catcher; Powerfil; Full" Signal Horn - Walker T23 Operator's Manual

Operating Instructions
● Check the interior of the chute connecting the
mower deck to the blower for smoothness
and freedom from obstruction.
Check the blower wheel for bent blades and
●
excessive clearance between the blade tip
and the blower housing. A clearance greater
than 1/8 in. (3 mm) will cause a significant loss
of blower performance.
● Check the blower discharge chute into the
grass catcher for smoothness and freedom
from ob struction.
● Check the elbow inside the grass catcher for a
buildup of material in the radius of the
elbow. In certain conditions (damp/dirty grass)
a considerable "clump" of material can accu-
mulate at this point, greatly restricting material
and airflow.
● Check that the openings in the removable
air exhaust screen in the grass catcher are
not plugged. If the screen is clogged, refer to
Cleaning the GHS Exhaust Screen on page
49.
NOTE: An optional exhaust screen with larger
holes (3/4") is available for use when mowing in
wet grass; the screen provides less airflow restric-
tion and more clog resistance (use standard
screen in dry conditions to avoid excessive mate-
rial blowing out of the catcher).
Remember, anything that restricts airflow or mate-
rial flow along the entire path from the mower deck
to the grass catcher can cause clogging.

Using the Tilt-Up Deck

Refer to Cleaning Grass Buildup in Mower Deck
Housing on page 70.

Using the GHS Catcher

Powerfil

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The GHS catcher has an oscillating grass delivery
spout (POWERFIL ) which is designed to spread
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grass clippings throughout the interior of the grass
catcher (even when mowing wet, heavy grass).
The oscillating action may be checked by turning
the ignition switch to the ON (RUN) position and
moving the blade clutch to the ENGAGED position.
The spout should oscillate approximately 35 cycles
per minute.
NOTE: If the grass spout fails to oscillate, the
clutch switch should be checked for function.
48

"Full" Signal Horn

The GHS catcher has a "full" signal horn to alert
the operator to dump the catcher when it is full
(to prevent overfilling and clogging). The "full"
signal horn is activated by a vane switch (Grass-
Pak switch) mounted on the grass delivery spout.
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Oscil lating action of the spout triggers the vane
switch as grass begins to fill in around the spout
when the catcher is almost full.
The "full" signal function may be checked by turn-
ing the ignition switch ON (RUN), engaging the
blade clutch (engine not running), opening the
catcher back door, and triggering the Grass-Pak
vane by hand as it oscillates. The horn should
sound as the switch is moved in one direction.
WARNING
DO NOT test the Powerfil
Grass-Pak switch with the engine running.
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Projectiles may be thrown out of the grass
delivery spout, and COULD cause serious
injury.
The "full" signal horn is designed to operate
(sound) when the grass catcher is almost full.
The timing of the signal is adjustable by changing
the position of the vane on the Grass-Pak
If the signal is coming on too soon (catcher not
completely full) or too late (grass clogging in catch-
er spout and deliv ery chute), refer to GHS "Full"
Signal Horn Adjustment on page 94.
NOTE: The horn signal should be adjusted to
sound BEFORE the catcher is completely full to
give the operator time to react and stop mowing.
An indication the horn signal is coming on too late
(de layed too much) is if grass clippings are falling
out of the grass catcher delivery chute when the
catcher is dumped.
T23
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oscillation or
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switch.
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