Assembly Of Shafts In The Rotor Case And Setting Of The Tapered Roller Bearings - Johnson Pump Top Wing Series Manual

4.7.3 Assembly of shafts in the rotor case and setting of
the tapered roller bearings
1. Fit both pre-assembled shafts with bearings in the rotor case and fix them with
screws (0510).
Tool : assembly sleeve for lip seal
(see chapter 5.0)
2. Screw hexagon bolts in the threaded holes (retainer holes)
in the front faces of the shaft.
3. To check the friction torque and adjust the bearing setting of each shaft
separately do as follows:
• Use the torque meter wrench (see picture) on the hexagon bolt to
turn the shaft and measure the friction torque
Torque meter wrench only
Pump
TW1
TW2
TW3
TW4
• Remove the torque meter wrench
• Place one rotor on the shaft
A.0500.301/314.C – IM-TW/10.00 GB (0401)
Torque
1.6 – 1.8 Nm
3.2 – 3.4 Nm
4.5 – 4.7 Nm
7.0 – 7.3 Nm
Tool
0510
Measuring friction torque
TW1 M10x20
TW2 M16x30
TW3 M16x30
TW4 M20x50
41