Troubleshooting; Factors That Can Affect Quality Of Cut - Toro Groundsmaster 3280-D Service Manual

Troubleshooting

Factors That Can Affect Quality of Cut

1. Maximum governed engine speed
2. Blade speed
3. Tire pressure
4. Blade condition
5. Mower housing condition
6. Height-of-cut
7. Cutting deck alignment and ground following
8. Roller and castor wheel condition
9. Grass conditions
10. Machine traction speed
Groundsmaster ® 3280-D/3320
05138SL Rev B
There are a number of factors that can contribute to unsatisfactory quality of cut,
some of which may be turf conditions. The turf conditions such as the excessive
thatch, sponginess, or attempting to cut off too much grass height may not
always be overcome by adjusting the cutting deck or machine. It is important to
remember that the lower the height-of-cut, the more critical these factors are.
Remember that the effective or actual height-of-cut depends on the cutting unit
weight, tire pressures, hydraulic counterbalance settings, and turf conditions.
Factor Possible Problem/Correction
Check that the engine is running at the correct high-idle
speed; refer to Chapter 3: Gasoline Engine (page 3–1)
Chapter 4: Diesel Engine (page
Always mow at high engine speed.
All the cutting deck blades should rotate at the same speed.
Check the air pressure of all the tires including castor tires.
Adjust to the pressures specified in the Operator's Manual.
Sharpen the blades if their cutting edges are dull or nicked.
Inspect the blade sail for wear or damage. Replace the blade
if necessary.
Ensure that the cutting chamber is in good condition.
Keep the underside of the deck clean. The unwanted material
buildup can reduce the cutting performance.
Ensure that all cutting deck height-of-cut adjustments are
the same. Adjust the deck as specified in the Cutting Unit
Operator's Manual. The effective (actual) height-of-cut may
be different than the bench set height-of-cut.
Check the lift arms for wear, damage, or binding. Also,
inspect for bent or damaged pivot shafts.
All rollers and caster wheels should rotate freely. Replace the
bearings if they are worn or damaged.
Mow when the grass is dry for best cutting results. Also,
remove only 2.5 cm (1 inch) or 1/3 of the grass blade when
cutting.
Mowing at too fast of a traction speed will result in poor after
cut appearance and missed patches of grass.
Page 10–3
or
4–1).
Cutting Units: Troubleshooting