20
06
Operator’s Manual 2010 Rev B p/n 2010
DISASSEMBLY (3200 AND 4600)
1. Remove all oil drain plugs and vent plugs from
both ends of the blower. Before removing
any parts, match-mark each component
with a punch. This will allow the blower to be
reassembled with the components in the same
position. Match-mark the covers, end plate,
housing, and both rotors.
2. Remove the drive key from the drive shaft.
Remove the gear end cover. Remove the drive
end cover. This is best accomplished by using
two small pry bars at the dowel pins. Tap on
the cover with a mallet while putting pressure
on the cover with the pry bar. The cover will
slowly move off the dowel pins. Inspect the
drive shaft for grooves and burrs. Remove the
drive shaft seal from the drive end cover.
3. Carefully remove the drive seal wear ring from
the drive shaft. The simplest method to do so
is to use a cut-off wheel and a die grinder. The
hardened ring will typically snap open once it is
cut most of the way through.
4. Remove the washer from the rotor shafts
on the gear end. Remove the oil slinger
assemblies.
5. Rotate the blower. Remove bolts and washers
from rotor shafts on the gear end. Remove
the timing gear bolts completely from the
driven rotor. Remove the timing gear from the
rotor shaft by using a gear puller.
See Figure
6-1
. Rotate the gear as it is being removed
to prevent binding. Inspect the gear teeth for
wear and pitting. Inspect the rotor shaft keyway
for wear and damage.
6. Remove the bolts from the free end of the end
plate.
1”
2 5/8”
5 1/4”
2”
15/16”
1 7/8”
3/4”
Drill Ø 11/16”
Tap 3/4” - 16 UNF
7/16” × 1” Slot
(Thru)
Snap-On
P/N CJ66-15-3
or equivalent
Snap-On P/N CJ83-3
or equivalent
Figure 6-1 – Bar Puller
DISASSEMBLY AND REASSEMBLY INSTRUCTIONS
Summary of Contents for 3200
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