Never direct discharge of material from mower deck
towards bystanders. Do not operate the mower without
either the discharge chute or the entire grass collection
system in place. Figure 3-10
Discharge
chute
NOTE: Discharge chute may
vary from this illustation
Figure 3-10
603744_0911
3-11
Mower deck operation
Never attempt to make any adjustments to the mower
deck while the engine is running or with the deck drive
clutch engaged. Mower blades cannot be seen and are
located very close to deck housing. Fingers and toes can
be cut off instantly.
Deck clutch operation
Clutch life will be maximized if these procedures are
followed.
1.
Engage the clutch
only when the throttle is set at
approximately
2/3 throttle
and there is
no load
on the
blades. After clutch engagement, advance the engine
throttle to full rpm.
Engaging the deck clutch at high engine rpm or when
under heavy load (in tall grass for example) can cause
belts and/or electric clutch to slip, resulting in premature
wear or possible damage.
2.
Disengage the clutch
only when the throttle is set at
less
than 1/2 throttle.
Never disengage the clutch with the engine running at
high rpm. Setting the throttle to less than 1/2 throttle
when disengaging the clutch will help extend clutch life.
Warranty will not be allowed
for deck clutches that fail due
to improper engagement and disengagement practices.
Deck cutting height adjustment
Deck height is adjustable in 1/4” (.64 cm) increments. The
holes in the height adjusting bar are spaced at 1/2” (1.2 cm)
intervals. By turning the height adjusting stop around, 1/4” (.64
cm) increments can be attained due to the 1/4” (.64 cm) plate
that is part of the stop. Fig. 3-11 & Fig. 3-12
The notch (“G”) located at the rear
of the height adjusting
bar is to be used when the deck is placed in the
transport mode.
Fig. 3-11
NOTE:
The cutting height dimensions shown in Fig. 3-11
are approximate. The actual cutting height will vary slightly
from these dimensions.
603407
Height adjusting stop plate
facing towards front of mower
Front
Height adjusting stop plate
facing towards rear of mower
Add 1/4” (.64 cm) to cutting height
when the height adjusting stop plate
is facing toward the rear of mower.
1-1/2” (3.8 cm)
3-1/2” (8.9 cm)
4” (10.1 cm)
Transport mode – 4-1/2” (11.4 cm)
3” (7.6 cm)
2-1/2” (6.3 cm)
2” (5.1 cm)
Fig. 3-11
Anti-scalp wheels
An anti-scalp wheel is standard on BigDog
®
Mowers A Series
mowers. This anti-scalp wheel is designed to minimize scalping
when mowing on rough, uneven terrain.
After setting the cutting height, adjust the anti-scalp wheel so
it extends below the deck but
does not contact the ground.
They should always be at least 1/4” to 3/4” (6.35mm to
19.05mm) below the deck. With the unit sitting on a flat level
surface, the wheel position can be adjusted up or down as
needed from 3/4” to 1-3/4” (19.05mm to 44.45mm) below the
blade surface. Move the wheels up or down, in 1/2” (12.70mm)
increments, using the different axle mount holes in the wheel
mount bracket. Fig. 3-13.
WARNING
DANGER
Summary of Contents for BigDog
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