DE-STA-CO 1800RDM - Manual (Page 4)

DISASSEMBLY
1. REMOVE ALL ACCESSORY EQUIPMENT such
as clutches, reducers, sprockets, etc. If equipped
with a CAMCO R250 Reducer see disassembly
instructions manual 0079 pertaining to this
reducer prior to removal from the unit.
2. DRAIN OIL AND FLUSH UNIT with flushing
solvent. Retain any chips or broken pieces you
may find. These may aid in diagnosis.
3. REMOVE BOTTOM COVER.
4. REMOVAL OF OUTPUT SHAFT.
A. Remove the capscrews holding the large
output bearing retaining ring.
B. Drive the two dowel pins through the
retaining ring and housing with an undersize
punch.
C. Lift the output/follower wheel from the
housing. Save the retaining ring shims for
later installation.
Fig.1 Output shaft removal
5. FOLLOWER INSPECTION.
Inspect followers for damage or radial looseness. It
should not exceed .001 inch. Do not confuse radial
looseness with axial endplay. Endplay will be from
.03” to .06” as a normal condition. If it exceeds .06
it may require replacement.
NOTE: Generally, followers are replaced as added
insurance against failure later.
Fig.2 Inspecting for radial looseness
6. FOLLOWER REMOVAL.
Followers can be removed at this stage.
A. Remove the setscrews. Apply heat to the
setscrews holding the follower studs and
remove while still warm.
B. Threaded holes have been provided in the
ends of the follower for ease of removal.
Use a slide hammer or a simple self-made
pull tool. The self-made pull tool consists of
a short piece of round tubing, large enough
to clear the follower diameter and a small
flat bar with a clearance hole large enough
to insert a capscrew of equal thread size as
the follower pull hole. Slip the tube over the
follower, place the bar over the tube and
thread a capscrew into the follower.
Tightening the capscrew will remove the
follower.
Fig.3 Follower pull tools.
3