Toro 03911 Operator's Manual page 14

Premium Low HOC Bedknife
Reel Size
18 inch, 11
blade (Production)
18 inch, 8 blade (Optional)
22 inch, 8 blade (Optional)
Low HOC Bedknife
Reel Size
18 inch, 8 & 11 blade
(Optional)
22 inch, 8 blade (Optional)
EdgeMax® Low HOC Bedknife
Reel Size
18 inch, 11 blade (Optional)
18 inch, 8 blade (Optional)
22 inch, 8 blade (Optional)
EdgeMax® Bedknife
Reel Size
18 inch, 8 blade (Production)
18 inch, 11 blade (Optional)
22 inch, 8 blade (Production)
Standard Bedknife
Reel Size
18 inch, 8 & 11 blade
(Optional)
22 inch, 8 blade (Optional)
* Warm season grasses may require the Low HOC
bedknife for 12.7 mm (.500 inches) and below.
1. Bedknife Lip Height *
Cutting Unit Characteristics
The dual knob bedknife-to-reel adjustment system
incorporated in this cutting unit simplifies the adjustment
procedure needed to deliver optimum mowing performance.
The precise adjustment possible with the dual knob/bedbar
design gives the necessary control to provide a continual
self-sharpening action-thus maintaining sharp cutting edges,
Bedknife/ Height of Cut Chart
Part No.
125–2770
125–2771
Part No.
121-3167
110-4084
Part No.
130–4745
127–7132
Part No.
121–3165
108-9095
Part No.
121–3166
108-9096
Figure 19
Bedknife Lip Height
5.6 mm
(.220 inch)
Bedknife Lip Height
5.6 mm
(.220 inch)
Bedknife Lip Height
5.6 mm
(.220 inch)
Bedknife Lip Height
6.9 mm
(.270 inch)
Bedknife Lip Height
6.9 mm
(.270 inch)
ensuring good quality-of-cut, and greatly reducing the need
for routine back lapping.
Daily Adjustments of Cutting Unit
Prior to mowing each day, or as required, check each cutting
unit to verify proper bedknife-to-reel contact. This must be
performed even though the quality of cut is acceptable.
1. Slowly rotate the reel in a reverse direction, listening
for reel-to-bedknife contact.
Note: The adjustment knobs have detents
corresponding to 0.018 mm (0.0007 inch) bedknife
movement for each indexed position. Refer to
Adjusting the Bedknife to the Reel.
2. Test the cutting performance by inserting a long strip
of cutting performance paper (Toro part number
125-5610) between reel and bedknife, perpendicular
to the bedknife (Figure 20). Slowly rotate the reel
forward; it should cut the paper.
14
Height of Cut
6.4–12.7 mm
(.250-.500 inch)
Height of Cut
.6.4–12.7 mm
(.250-.500 inch))
Height of Cut
6.4–12.7 mm
(.250-.500 inch)
Height of Cut
9.5–38.1 mm
(.375-1.50 inches)
Height of Cut
9.5–38.1 mm
(.375-1.50 inches)*