Servicing The Bedknife/Bedbar Assembly - Toro Reelmaster 4500–D Service Manual

Servicing the Bedknife/Bedbar Assembly

NOTE: The bedbar on each cutting unit has a precision
ground mounting surface to provide an excellent fit with
a bedknife. Backlapping of replacement bedknives is
often sufficient to achieve an excellent cutting edge with
minimum material removed.
Bedknife/Bedbar Removal:
1. Remove the shoulder bolts,bushings and spacers
from each end of the unit and remove the bedbar/bed-
knife assembly (Fig. 16).
2. Remove the mounting screws for the bedknife and
separate the bedknife from the bar (Fig. 17). Discard the
screws.
Assembly:
1. Thoroughly clean the bedknife mounting face on the
bedbar of all rust and scale. Remove any material on the
mounting face of the bedbar that will affect a good
match–up with the bedknife.
2. Before installation, apply a coating of "Never Seez",
or any material that will ease future disassembly of the
bedknife mounting screws, to the threads before instal-
lation.
3. Use a torque wrench and special bedknife screw tool
to complete tightening of the screws (Fig. 18). Tighten
the screws to a torque of 250 in.–lb (28 Kgm) beginning
with the center screw and tightening alternate screws to-
ward each end to insure the bedknife will be flat against
the bedbar.
4. Install the bedbar/bedknife assembly to the cutting
unit.
Cutting Units
1. Shoulder bolts (2 each side)
1. Bedbar
2. Bedknife
Page 7 – 12
Figure 16
2. Bushing
Figure 17
3. Bedknife mounting screws
4. Bedbar mounting components
Figure 18
1. Torque wrench
2. Part No. 51–0880 Tool
3. Torque from the center out
Reelmaster 4500–D
3. Spacer