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RG74DXH Operator · Service · Maintenance Manual
• Debris Retention: Rayco's cutting tool patterns are
designed to minimize the retention of debris in between
the cutting tools. This debris can cause imbalance. This
debris can also become a dangerous projectile. Non-
Rayco cutting tools may retain more debris.
Changing Teeth
BLOCK OR OTHERWISE SECURELY SUPPORT THE
CUTTING BOOM WHEN CHANGING TEETH.
NOTICE
Read all of the following instructions before
beginning to change the cutting teeth.
NOTICE
The following illustrations represents the exact
location required for positioning each tooth. Please
follow the diagrams very closely for good cutting
wheel performance.
1
1. Remove the socket head bolts (3) from the teeth (2).
(Use the 1/2" hex key provided with the machine.)
2. Clean all dirt from the cutting wheel (1) and teeth (2).
3. Check the cutting wheel for cracks. Replace the wheel
if it is cracked.
4. After reinstalling or replacing the teeth, according to the
diagrams which follow, tighten the socket head bolts to
135 - 145 lbs/ft.
Replacement teeth are available from your Rayco dealer or
direct from Rayco. Refer to the Parts manual for part numbers
The Cutter Wheel on the RG74DXH uses 4 different types
of SuperTeeth as shown below:
50
2
3
4
5
6
7
8
9
7
6
6
6
6
9
6
4
4
4
8
5
4
4
4
Angle-Out Tooth -
Part# 2933C (countersunk)
Qty of 16
Straight Tooth -
Part# 3144C (countersunk)
Qty of 2.
Angle-Out Tooth -
Part# 2933T (threaded)
Qty of 16
Straight Tooth -
Part# 3144T (threaded)
Qty of 2
Angle-In Tooth -
Part# 20432C (countersunk)
Qty of 2
Angle-In Tooth -
Part# 20432T (threaded)
Qty of 2
6
6
9
6
6
6
6
6
6
6
7
6
6
4
4
4
4
4
5
8
4
4
4
4
4
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