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Greensmaster 3150
DPA Cutting Units
Page 7 -- 19
Bedknife Grinding
Since there can be variations in the mounting surface of
the bedbar, a new bedknife will not be perfectly flat after
it is installed to the bedbar. Because of this, it is neces-
sary to 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 of the bedknife is true and perfectly flat (Fig. 19).
NOTE: When grinding the bedknife, be careful to not
overheat the bedknife. Remove small amounts of mate-
rial with each pass ofthe grinder. Also,clean and dress
grinding stone often during the grinding process.
1. Use ToroGeneral Service Training Book, Reel Mow-
er Basics (part no. 09168SL) and grinder manufactur-
er’s instructions for bedknife grinding information.
2. After bedknife grinding is complete, install bedbar to
cutting unit (see Bedbar Installation in this section).
Figure 18
12 4683579 10 12
1113
# TOR510880
Figure 19
Relief Angle
Front Angle
Top Face
Front
Face
Remove
Burr
Bedknife Grinding Specifications (see Fig. 19)
Standard bedknife relief angle 3
o
(see Fig. 20)
Fairway bedknife relief angle 3
o
(see Fig. 20)
Extended bedknife relief angle 7
o
(see Fig. 20)
Front Angle (all bedknife types) 13
o
Front Angle Range 13
o
to 17
o
Figure 20
1.708” (43.4 mm)
Standard Bedknife
Fairway Bedknife
1.689” (42.9 mm)
1.876” (47.7 mm)
Extended Bedknife
DPA Cutting
Units