Bedknife Replacement and Grinding
Removal
2
1.
2.
and bedknife screw tool (see Special Tools). Discard
screws. Remove bedknife from the bedbar (Fig. 40).
Remove bedbar fromframe (see Bedbar Removal).
Removescrewsfrombedbar usingasocketwrench
1
3.
from bedbar surface before installing bedknife.
Use scraper to remove all rust, scale and corrosion
3
Replacement
Figure 40
1.
screws. Apply anti--seize lubricant to the screws before
installing.
Make sure bedbar threads are clean. Use new
1.
2.
Screw
Bedbar
3.
Bedknife
IMPORTANT: Do not use an impact wrench to tight-
en screws into the bedbar.
2.
Using a torque wrench and bedknife screw tool,
tighten screws to a torque of 200 to 250 in--lb (230 to
kg--cm). Use a torquing pattern working from the
center toward each end of the bedknife (Fig. 41).
288
3.
Install bedbar to frame (see Bedbar Installation).
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. Because of this, it is necessary to backlap
or grind a new bedknife after installing it to the bedbar.
Follow the existing angle that was ground into the bed-
knifeandgrindonlyenoughtomakesurethetopsurface
is true (Fig. 38).
13 11
9
7
5
3
1
2
4
6
8
10
12
Figure 41
Top Face
Remove
Burr
Relief Angle
1.
Removal).
Remove bedbar from the cutting unit (see Bedbar
Front
Face
Note:
bedknife. Remove small amounts of material with each
pass of the grinder.
When grinding, be careful to not overheat the
Front Angle
Figure 42
2.
Refer to Toro General Service Training Book, Reel
Mower Basics (part no. 09168SL) for additional bed-
knife grinding information.
Bedknife Grinding Specifications (Fig. 42)
Standard Bedknife
Standard bedknife relief angle
Extended bedknife relief angle
Front Angle
3o (see Fig. 43)
7o (see Fig. 43)
13o
1.69”
(42.9 mm)
Front Angle Range
13o to 17o
Extended Bedknife
Figure 43
3.
tion).
Reinstallbedbartocuttingunit(seeBedbarInstalla-
1.88” (47.8 mm)
Greensmaster 3250--D
Page 7 -- 31 Rev. I SPA and 4--Bolt Cutting Units (Rev. A)
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Greensmaster 3250 D |
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| Document Type | Service Manual |
| Language | English |
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