
AAM
−
136
Revised June 5, 2012
9
DISASSEMBLY INSTRUCTIONS
RING WRENCH /
WORM INSERTION TOOL
PLATE LIFTER
KNIFE INSERT
REMOVAL TOOL
Fig. 7 Special Tools.
WARNING
Turn off and lock out machine power
source(s) following the lockout / tagout
procedures described in OSHA CFR 29
1910.147 Code of Federal Regulations
(or equivalent).
REQUIRED TOOLS (Fig. 7 )
RING WRENCH / WORM INSERTION
TOOL:
Fits over lugs of ring and is used to turn
ring off counterclockwise (CCW) and on clockwise
(CW). Also used to assist in engaging the feed
screw onto the gearbox spline.
PLATE LIFTER:
Lifts end of feed screw to
center the plate in head opening. Used to remove
and install plate/bushing assembly. Also used to
remove tension spring from feed screw pin hole.
KNIFE INSERT REMOVAL TOOL:
Use this
tool to remove inserts when they become worn
STEP 1: REMOVE ORIFICE PLATE GUARD
(Fig. 8 )
Loosen thumb screws and remove orifice plate
guard. Set aside for cleaning later.
ORIFICE PLATE GUARD
Fig. 8 Remove Orifice Plate Guard.
RING
RING WRENCH
TURN RING
COUNTER
−
CLOCKWISE
TO LOOSEN
Fig. 9 Ring Removal.
STEP 3: REMOVE PLATE (Fig. 10 )
Remove plate and bushing (if applicable) by
putting plate lifter “point” on first thread at end of
head. Place loop around centering pin. Lift up and
down while pulling back on plate.