Toro Groundsmaster 7210, Service Manual

Page: 307 / 342

Factors That Can Affect Cutting Performance
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 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 deck
weight and turf conditions.
Factor Possible Problem/Correction
1. Maximum governed engine speed Check that the engine is running at the correct high-idle
speed; refer to
Chapter 3: Diesel Engine (page 3–1) .
Always mow at high engine speed.
2. Blade speed All the cutting deck blades should rotate at the same speed.
3. Tire pressure Check the air pressure of all the tires including the
castor tires. Adjust to the pressures specified in the
Traction Unit Operator’s Manual .
4. Blade condition
Sharpen the blades if their cutting edges are dull or nicked.
Inspect the blade sail for wear or damage. Replace
the blade if necessary.
5. Mower housing condition 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.
6. Height-of-cut Adjust the deck as specified in the Cutting Deck
Operator’s Manual . The effective (actual) height-of-cut
may be different than the bench set height-of-cut.
7. Cutting deck alignment and ground following Check the lift arms for wear, damage, or binding.
Also, inspect for bent or damaged pivot shafts.
8. Anti-scalp roller condition All anti-scalp rollers should rotate freely. Replace the
rollers or roller shafts if they are worn or damaged.
9. Grass conditions 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.
10. Machine traction speed Mowing at too fast of a traction speed will result in poor
after cut appearance and missed patches of grass.
Groundsmaster 7210 Page 7–3 Cutting Deck: Factors That Can Affect Cutting
Performance
16222SL Rev C