Servicing the Bedknife
The bedknife service limits are listed in the following chart.
Important:
Operating the cutting unit with the bedknife below the service limit may result in poor
after-cut appearance and reduce the structural integrity of the bedknife for impacts.
Bedknife Service Limit Chart
Bedknife
Part No.
Bedknife Lip Height*
Service Limit*
Grind Angles
Top/Front Angles
Low HOC (Optional)
121-3167 (18 inch)
110-4084 (22 inch)
5.6 mm
(0.220 inch)
4.8 mm
(0.190 inch)
10/5 degrees
EdgeMax® Low HOC
(Model 03485)
(Model 03487)
137-0830 (18 inch)
137-0832 (22 inch)
5.6 mm
(0.220 inch)
4.8 mm
(0.190 inch)
10/5 degrees
Extended Low HOC
(Optional)
120-1640 (22 inch)
5.6 mm
(0.220 inch)
4.8 mm
(0.190 inch)
10/10 degrees
Extended EdgeMax®
Low HOC (Optional)
119-4280 (22 inch)
5.6 mm
(0.220 inch)
4.8 mm
(0.190 inch)
10/10 degrees
EdgeMax®
(Model 03484)
(Model 03486)
137-0831 (18 inch)
137-0833 (22 inch)
6.9 mm
(0.270 inch)
4.8 mm
(0.190 inch)
10/5 degrees
Standard (Optional)
121-3166 (18 inch)
108-9096 (22 inch)
6.9 mm
(0.270 inch)
4.8 mm
(0.190 inch)
10/5 degrees
Heavy Duty (Optional)
110-4074 (22 inch)
9.3 mm
(0.370 inch)
4.8 mm
(0.190 inch)
10/5 degrees
Recommended Top and Front Bedknife Grind
Angles (
g027268
Figure 25
1.
Bedknife service limit*
2.
Top grind angle
3.
Front grind angle
Note:
All bedknife service limit measurements
reference the bottom of the bedknife (
g007165
Figure 26
Checking the Top Grind Angle
The angle that you use to grind your bedknives is
very important.
Use the angle indicator (Toro Part No. 131-6828) and
the angle-indicator mount (Toro Part No. 131-6829) to
check the angle that your grinder produces and then
correct for any grinder inaccuracy.
1.
Place the angle indicator on the bottom side of
the bedknife as shown in
17