Bedknife Replacement And Grinding - Toro Reelmaster 2000-D Service Manual

Bedknife Replacement and Grinding

1. Remove bedbar from the cutting unit (see Bedbar
Removal).
2. Remove bedknife screws and bedknife.
3. Remove all rust, scale and corrosion from the bedbar
surface before installing new bedknife.
NOTE: Use a torque wrench and a bedknife screw tool
to install bedknife screws.
4. Install new bedknife as follows:
A. Make sure bedbar threads are clean.
B. Use new bedknife screws. Apply anti–seize lubri-
cant to the screw threads before installing.
IMPORTANT: Do not use an air or manual impact
wrench to tighten bedknife screws.
C. Tighten screws to a torque of 250 to 300 in–lb
(28 to 34 N–m). Tighten screws from the center to-
ward each end of the bedbar (Fig. 10).
5. Since there can be variations in the mounting sur-
face of the bedbar, a new bedknife will not be perfectly
flat after it is installed. It is therefore necessary to back-
lap or grind a new bedknife after installing it to the bed-
bar. Follow the existing angle that was ground into the
bedknife and grind only enough to make sure the top
surface is true.
6. Install bedbar to the cutting unit (see Bedbar Installa-
tion).
Regrinding Bedknife
Remove bedbar assembly from cutting unit before at-
tempting to regrind a used bedknife (see Bedbar Re-
moval).
NOTE: When grinding, be careful to not overheat the
bedknife. Remove small amounts of material with each
pass of the grinder.
NOTE: If the height of cut is 1/2 inch (13mm) or lower
on the cutting unit, the front angle can be increased to
o
30 for improved performance.
Bedknife Regrinding Specifications
Relief Angle
Relief Angle Range
Front Angle
Front Angle Range
Cutting Units
o
5
o o
3 to 6
o
15 (see NOTE above)
o o
13 to 17
Page 7 – 12
11 9 7 5 3 1 2
Figure 10
Relief Angle
Front Angle
Figure 11
4 6 8 10 12
Top Face
Front
Face
Reelmaster 2000–D