Toro Greensmaster 3120 Service Manual page 258

Grinding the Bedknife (continued)
DPA Cutting Units: Service and Repairs
EdgeMax® bedknives are extremely hard. Using a diamond grinding
wheel is recommended to prevent overheating or damaging the
bedknife edge while grinding.
Because the top grind angle on bedknives is critical for edge retention, and
therefore after−cut appearance, Toro has developed special service tools for
accurately measuring the top grind angle on all bedknives; refer to
Indicator and Magnetic Mount (page
1. Use Toro General Service Training Book, Reel Mower Basics (part no.
09168SL) and grinder manufacturer's instructions for bedknife grinding
information.
2. After grinding the bedknife, install the bedbar assembly in the cutting unit;
refer to Installing the Bedbar (page
Note: Always adjust the cutting unit after grinding the reel and/or bedknife;
refer to the Cutting Unit Operator's Manual. If a properly adjusted cutting unit
does not cut paper cleanly after grinding, the grind angle may be incorrect.
To extend the cutting unit performance by allowing the reel and the bedknife
to hold their edge longer, an additional adjustment may be required after the
first few minutes of operation as the reel and bedknife conform to each other.
IMPORTANT
7–6).
7–16).
Page 7–22
Angle
Greensmaster 3120
17230SL Rev C