JEC Pumps JRZL Series, Operating & Maintenance Manual

Page: 26 / 66

25
6. If the rotor timing is correct, measure the gap of the
gear between drive shaft and idle shaft using depth
micrometer shown in Figure 28. Adjust the gap using
spacer and shim(s) according to the below cases.
* If the gap is (+) value (idle shaft is more embossed
than drive shaft) as shown in Figure 29, combined
6mm spacer & shim(s) and add on the idle shaft to
make the gap equal.
* If the gap is (-) value (drive shaft is more embossed
than idle shaft) as shown in Figure 30, combined
5mm spacer & shim(s) and add on the idle shaft to
make the gap equal.
Above cases of combinations (5mm & 6mm spacer,
0.1mm shim(s)) can be applied for ZL100 & 200 series
only. While the other bigger size of shim(s) & spacer
combination, but same concept, can be applied for
ZL300 & 400 series.
7. Reassemble the idle shaft by the same procedure as drive shaft after adjustment.
Fig. 29
Fig. 30