ODB DCL800TM, Owner'S Manual

Page: 65 / 145

65
ODB Company
DCL800TM
5.4 Impeller Installation and Removal
Before removing the blower housing
face remove the negative battery cable to
ensure unit can not be started.
REMOVAL
1. The blower housing face must be removed to gain access to the
impeller. Use an overhead crane or forklift to support the face
while removing.
2. Once the face has been removed, remove the shaft protector
(Fig. 1 or 2).
3. Saturate the shaft and bushing using a penetrating lubricant to
help loosen the bushing. Clean any grease or debris from the
bushing and shaft.
4. Remove the 3 bolts attaching the bushing to the impeller.(Fig.
3) Being careful not to break the bolts. If a set screw is on the
lip of the bushing, loosen it using an allen wrench.(Fig. 4)
5. Using two of the bolts that were just removed screw those bolts
into the threaded holes on the bushing. Drive the two bolts
into the bushing.(Fig. 5) This will separate the bushing from
the impeller. Alternate from one bolt to the other driving only
about a 1/4” at a time to keep the bushing coming out straight.
It is imperative to keep the bushing straight to remove it.
IMPORTANT: Be sure to drive the bushing out evenly or it will
get in a bind making removal much harder.
6. If the bushing does not come off using the two bolts, drill and
tap several additional 3/8-16 holes around the bushing. Us -
ing Grade 8, 3/8-16 - 2 inch bolts, alternately drive the bolts
1/4” at a time to remove the bushing. KEEP THE BUSHING
STRAIGHT while removing.
IMPORTANT: If additional holes were drilled in the bushing, it
can not be reused. It must be be replaced.
7. Once the bushing has been removed use an overhead crane or
other suitable device to help lift the impeller out of the blower
housing.
8. At this point it would be a good idea to inspect the blower
housing liners and blower housing for any damage or wear.
Any damage or wear to the liners should be fixed by replacing
the liners immediately.
Fig. 3
Fig. 4
Fig. 5
Fig. 1
Fig. 2
Direct
Drive
Belt
Drive