20
13. Clean carefully the seal slide surfaces and
assemble the rotor case delicately in order not to
damage the seals and be sure it is well set on plugs.
Clamp the back nuts.
14. Assemble the rotors, setting them on pitch setting,
according to reference marks (1-2). Clamp the rotor
nuts (see tab. 14). In order to stop turning, interpose
a non metal element between rotors
15. After disassembling the rotor case, remove the oil
and the drive key on shaft.
16. Remove the gear cover and make a reference mark
on gears in order to respect the right timing while
re-assembling.
17. Disconnect the retainer keys on lock washers. 18. Unscrew the retainer ring nut, inserting a non metal
wedge between gears in order to stop turning.
BEARING HOUSING DISASSEMBLY - PUMP TYPE B1 - B2 - B3 - B4
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