11
MAINTENANCE
PUMP HOUSING DISASSEMBLY
Prior to removal of pump, the shut-off valves in the suction and discharge pipe work must
be closed. If there is any risk that product may be hardened, crystallized or frozen in the
pump it should be thoroughly drained and cleaned immediately after use. Similar attention
must be applied to the seal flushing system. Remove power before servicing to prevent
from any unintended start of the pump by an authorized electrician.
Drain all products from the pump head prior to disassembly. The pump head may be
isolated with inlet and outlet valves. And disconnect the suction and discharge piping from
the pump.
Loosen and remove the four-cover bolts from the cover.
Remove the cover. If it is stuck, tap on the cover with a soft
hammer. Remove the cover O-ring.
Remove rotor-retaining bolts. Use the special tool supplied
with pump. To remove rotor-retaining bolts, place the plastic
dowel between the rotors. Turn the first rotor bolt counter-
clockwise.
The rotors can be removed from the pump housing by pulling
straight. If it is stuck tight, alternately use special rotor
extraction tool supplied with pump. Handle the rotors with
care to avoid damage.
Fig. 1
Fig.2
Figure 1
Fig. 3
Summary of Contents for AccuLAB Series
Page 1: ...Operating Maintenance Manual JEC AccuLAB Series Rotary Lobe Pumps...
Page 4: ...3...
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Page 23: ...22 DIMENSIONAL DRAWING FOR BARE SHAFT...
Page 24: ...23 PARTS LIST EXPLODED VIEW...