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Greensmaster 3150
DPA Cutting Units
Page 7 -- 26
Preparing Reel for Grinding
NOTE: Before grinding a cutting reel, make sure that all
cutting unit components are in good condition. Depend-
ing on type of grinder used, faulty cutting unit compo-
nents can affect grinding results.
NOTE: When grinding, be careful to not overheat the
cutting reel blades. Remove small amounts of material
with each pass of the grinder.
1. Follow reel grinder manufacturer’s instructions to
grind cutting reel to Toro specifications (see Reel Grind-
ing Specifications chart to the right). Additional reel
grinding information can be found in the Toro General
Service Training Book, Reel Mower Basics (part no.
09168SL).
2. After completing the reel grinding process, adjust
cutting unit ( see Cutting Unit Operator’s Manual).
Reel Grinding Specifications
Reel Diameter (New) 5.06 in (128.5 mm)
Service Limit - Reel
Diameter
4.50 in (114.3 mm)
Reel Shaft Diameter (OD) 1.375 in (34.9 mm)
Blade Relief Angle 30
o
Blade Relief Angle Range 28
o
to 32
o
Blade Land Width 0.040 in (1.0 mm)
Blade Land Width Range 0.030 to 0.050 in (0.8 to 1.2 mm)
Service Limit -
Reel Diameter Taper
0.010 in (0.25 mm)
Reel Diameter
Rotation
Blade Relief Angle
Blade Land
Width
D2D1
Reel Diameter Taper = D1 -- D2
Figure 25