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Reelmaster 3100--D
DPA Cutting Units (Rev G)
Page 8 -- 30
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 Toro General Ser-
vice 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) 7.060 in (179.3 mm) for 7” reel
Service Limit - Reel
Diameter
6.600 in (168.0 mm) for 7” reel
Blade Relief Angle 30
o
Blade Relief Angle Range 25
o
to 35
o
Blade Land Width 0.060 in (1.5 mm)
Blade Land Width Range 0.050 to 0.070 in (1.3 to 1.8 mm)
Service Limit -
Reel Diameter Taper
0.010 in (0.25 mm)
Reel Diameter Taper = D
1
-- D
2
D
1
D
2
Blade Relief Angle
Reel Diameter
Blade
Land
Width
Figure 29