17
MAINTENANCE
ROTOR CASE 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.
Reference numbers are listed in the ‘PARTS LIST’ refer to the exploded view on pages 26-30.
Start by removing the front cover after removing the cap nuts
using the appropriate wrench from the cover. During this
process, place all parts on a clean, protected surface with
finished surfaces and seal faces facing up. If it is stuck, tap
the cover off using a soft mallet.
And then, remove the cover O-ring and inspect.
Remove rotor bolts using the special tool supplied with pump
or appropriate size wrench. To remove rotor bolts, place the
plastic bar between rotors to keep the rotors from moving as
shown in Figure 2.
Turn in the drive rotor bolt to the counter-clockwise direction
and extract rotor bolts and spring washers.
Rotors can be removed from rotor case by pulling straight.
It is important to be cautious with the rotors so that they are
not damaged.
Remove hexa-nuts on the four stud bolts securing the rotor
case to the gearbox.
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 1
Содержание JRZL Series
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