JEC Pumps JRZL Series, Руководство по эксплуатации и техническому обслуживанию

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22
ROTOR CASE ASSEMBLY
Before installing the rotor case (31) to the gearbox (1A), make sure to clean the surface of rotor
case and Gearbox and check the shim plates surely between rotor case and Gearbox as originally.
Assemble the rotor case (31) onto the Gearbox (1A) and secure
the four hexa-nuts (46) with reference of below torque set
value.
Series ZL100 ZL200 ZL300
ZL400 ZL500
Nut size M8 M10 M14
M20 M20
Torque (N·m) 30 34 80 120 120
Assemble rotors onto the shaft, engaging the shallow groove
with short spline in rotor and seal side first in to the shaft.
Place the plastic bar between the rotors as shown in Figure 24.
Tighten the first rotor bolt with a special tool to the below
recommended torque.
Series ZL100 ZL200 ZL300
ZL400 ZL500
Bolt size M8 M14 M18
M18 M18
Torque (N·m) 17 35 48 56 56
To tighten the second rotor, place the plastic bar on the opposite
side of the rotor and tighten the second rotor bolt to the proper
torque.
Be sure not to make any bur on the rotor bolt groove during this process. It may cause the serious
problem such as galling on the rotor case and if it happened, it must be removed.
Install the new O-ring inside of the cover (32) and slide the
cover over the stud. Thread cap nuts (33) on the studs and
tighten using an appropriate wrench with reference of below
torque set value in an opposing manner shown in Figure 25.
Series ZL100 ZL200 ZL300
ZL400 ZL500
Nut size M8 M10 M14
M20 M20
Torque (N·m) 14 17 30 52 52
Use feeler gauges and depth micrometer to verify the back and radial clearances
between the rotors and the rotor case. A depth micrometer should be used to verify the
front clearance.
Fig. 22
Fig. 24
Fig. 25
Fig. 23