Service Manual

Groundsmaster 7200/7210 Page 7 – 3 Cutting Deck
Factors That Can Affect Cutting Performance
There are a number of factors that can contribute to un-
satisfactory quality of cut, some of which may be turf
conditions. Turf conditions such as 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 cutting deck weight and turf conditions.
Factor
Possible Problem/Correction
1. Maximum governed engine speed. Check maximum governed engine speed. Adjust
engine speed to specifications if necessary (see
Chapter 3 – Kubota Diesel Engine).
2. Blade speed. All cutting deck blades should rotate at the same
speed.
3. Tire pressure. Check air pressure of all tires including castor tires.
Adjust to pressures specified in Operator’s Manual.
4. Blade condition. Sharpen blades if their cutting edges are dull or nicked.
Inspect blade sail for wear or damage. Replace blade if
needed.
5. Mower housing condition. Make sure that cutting chamber is in good condition.
Keep underside of deck clean. Debris buildup will
reduce cutting performance.
6. Height–of–cut. Adjust deck as specified in the Operator’s Manual.
Effective (actual) height–of–cut will be different than
the bench set height–of–cut.
7. Cutting deck alignment and ground following. Check 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
rollers or roller shafts if worn or damaged.
9. Grass conditions. Mow when grass is dry for best cutting results. Also,
remove only 1” (2.5 cm) or 1/3 of the grass blade when
cutting.
Cutting
Deck