Section 4: Maintenance & Lubrication
3/17/20
29
Carbon Teeth Configuration
Configuration of Carbide Teeth
Viewed From Left Side
Figure 4-2
Refer to Figure 4-2:
The cutting wheel has 30 carbide cutting teeth.
Three are left-hand with straight teeth holders (#5).
Three are right-hand with straight teeth holders (#4).
Twelve are left-hand with bent teeth holders (#3).
Twelve are right-hand with bent teeth holders (#2).
NOTE:
“Right-hand” and “left-hand” designation for
the carbide teeth are determined by standing behind
the tractor and Stump Grinder.
IMPORTANT:
Make certain the teeth are mounted
with the carbide cutting tip leading in rotation.
Mounting a tooth backwards can cause the carbide
tip to pull loose and damage the tooth.
NS FS
NS
FS
FS
NS
FS NS
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Carbide Cutting Edge
Must Lead In Rotation
IMPORTANT:
Carbide Cutting Edge Must Lead In Rotation.
The right-hand straight teeth (#4) are attached to the
cutting wheel on the far side (FS) with a series of four
bent teeth (#2) between the straight teeth.
The left-hand straight teeth (#5) are attached to the
cutting wheel on the near side (NS) with a series of
four bent teeth (#3) between the straight teeth.
Straight Tooth Holder & Carbide Tooth
Figure 4-3
Carbide Teeth Maintenance
Refer to Figure 4-3:
The carbide teeth (#4) can be rotated two times before
they need replacing. Once the upper third of the tooth
becomes worn, rotate the tooth as follows:
1. Loosen carbide nut (#1) 3 or 4 full turns. Do not
remove carbide nut.
2. Tap carbide tooth (#4) forward and rotate the head
one-third of a turn to position a non-worn cutting
edge up.
3. Tighten carbide nut (#1) to the correct torque for a
5/16-18 GR5 bolt.
4. Repeat steps 1-3 to rotate the tooth a second time.
5. Once all three outer thirds of the tooth are worn,
replace the carbide tooth as follows:
a. Remove carbide nut (#1) nut spacer (#2), and
worn carbide tooth (#4) from the tooth holder (#3).
b. Inspect carbide nut (#1) and nut spacer (#2) for
wear. Replace nut and spacer as needed.
c. Insert new carbide tooth (#4) in tooth holder (#3).
Make sure the cutting edge is leading in rotation.
d. Install tapered end of nut spacer (#2) leading in
rotation as shown and secure with carbide
nut (#1). Tighten nut to the correct torque for a
5/16-18 GR5 bolt.
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