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DPA Cutting
Reelmaster 3100--D
DPA Cutting Units (Rev. G)
Page 8 -- 29
Inspection of Cutting Reel (Fig. 28)
1. Inspect reel bearings to insure that they spin freely
and have minimal axial play. The bearing balls must be
free of deformation and scoring.
2. Inspect the reelshaft as follows. If reeldamage is de-
tected, replace reel.
A. Check the reel shaft for bending and distortion by
placing the shaft ends in V--blocks.
B. Check the reel blades for bending or cracking.
C. Check the service limit of the reel diameter (see
Preparing a Reel for Grinding in this section).
3. Check the threaded inserts in the reel shaft for ex-
cessive wear or distortion. Replace inserts if damage is
evident.
A. The threaded inserts are installed with thread
locking compound (Loctite #242 or equivalent). One
insert has LH threads and the other RH threads. The
insert withLH threadshas anidentification groove on
the flange face. A groove on the reel shaft approxi-
mately 2” from the end identifies the reel end thathas
LH threads (see illustration in Fig. 28).
B. To remove or install threaded spline inserts, use
correct spline insert tool (see Special Tools).
C. To install spline insert into c utting reel, clean
threads of insert and cutting reel shaft. Apply Loctite
#242 (or equivalent) to threads of insert, thread in-
sert intoreel shaftand torquefrom 85to 95 ft --lb (115
to 128 N --m).
Assembly of Cutting Reel (Fig. 28)
1. If seals and/or bearings were removed from r eel
shaft, discard removed components and replace.
2. Make sure that the two (2) retaining rings are fully
seated into the grooves on the cutting reel shaft.
3. If bearings and seals were removed from reel shaft:
A. Make sure that bore of seals are clean with no
grease or lubricant applied to ID of seal.
IMPORTANT: The grease seal should be
installed so the metal side of the seal is toward
the bearing location.
B. Press greaseseals onto reel shaftwith metal side
orientated toward bearing location. Final position of
seal shouldbe flush to0.060” (1.5 mm)away fromre-
taining ring on reel shaft. Do not force seal against
retaining ring. Seal must be perpendicular to reel
shaft after installation.
C. Pack replacement reel bearings with Mobil High
Temperature HP grease (or equivalent).
D. Press grease packed bearings fully onto reel
shaft. Bearingsshould bottom onr eel shaft shoulder.
Press equally on inner and outer bearing race when
installing bearings onto reel shaft.
4. Pack bore of reel shaft with Mobil High Temperature
HP (or equivalent) grease.