Walker MC (20 HP) - Manual (Page 74)

70
Maintenance Instructions
ADJUSTMENTS
DANGER
PINCH POINT - SPRING LOADED DOOR
When lowering the door on the GHS
catcher, depress the safety latch on the
side of the catcher. BE VERY CAREFUL
to keep hands, fingers, etc. out of the
hinging mechanism and away from the
door frame as the door closes. The
springs that hold the door closed during
operation are very powerful, and the door
can slam shut with considerable force.
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 bystand-
ers or property damage.
2. Measure from the exhaust screen (top of catch-
er) to the top of the Grass-Pak ® switch actuator
vane, refer to Adjusting the Grass-Pak ®
Switch illustration. The proper measurement
should be between 4 and 4-1/2 inches (10.16
and 11.43 cm).
4 to 4-1/2 in.
(10.16 to 11.43 cm)
Bend
Point
Exhaust
Screen
Adjusting the Grass-Pak ® Switch
(Side View of Catcher Box)
3. If adjustment is required, hold the Grass-Pak ®
switch mount bracket firmly, grasp the switch
and bracket and bend it down. Adjustments
should be done in very small increments check-
ing the measurement each time until the recom-
mended measurement is achieved. This mea-
surement is applicable to all catcher box sizes.
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).