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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
Low HOC (Optional)
EdgeMax® (Optional)
Standard (Production)
Heavy Duty (Optional)
Figure 25
Recommended Top and Front Bedknife Grind Angles
1. Bedknife service limit*
2. Top grind angle
3. Front grind angle
Note:
All bedknife service limit measurements relate
to the bottom of the bedknife
Figure 26
Bedknife Service Limit Chart
Part No.
120-1641 (27 inch)
120-1642 (32 inch)
112-8910 (27 inch)
112-8956 (32 inch)
114-9388 (27 inch)
114-9389 (32 inch)
114-9390 (27 inch)
114-9391 (32 inch)
(Figure
26).
Bedknife Lip Height*
5.6 mm (0.220 inch)
4.8 mm (0.190 inch)
6.9 mm (0.270 inch)
4.8 mm (0.190 inch)
6.9 mm (0.270 inch)
4.8 mm (0.190 inch)
9.3 mm (0.370 inch)
4.8 mm (0.190 inch)
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
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correct for any grinder inaccuracy.
1.
Place the angle indicator on the bottom side of
the bedknife as shown in
1. Bedknife (vertical)
2.
Press the Alt Zero button on the angle indicator.
3.
Place the angle-indicator mount on the edge of
the bedknife so that the edge of the magnet is
mated with the edge of the bedknife
g007165
Note:
The digital display should be visible from
the same side during this step as it was in step 1.
17
Service Limit*
Grind Angles
Top/Front Angles
10/5 degrees
10/5 degrees
10/5 degrees
10/5 degrees
Figure
27.
Figure 27
2. Angle indicator
g034113
(Figure
28).
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