9
D4 0617GB
December 2000
A.
C.
Fig. 14
Fig. 15
Reassembly
D4 19 © IMO AB
• Fit the O-ring 506.
• Lubricate it with bearing grease if it is
difficult to keep it in place.
D4 17 © IMO AB
506
• A nick has been filed on the power rotor
thread on the outer diameter at the discharge
end. This marked power rotor thread should
be fitted into the female thread on the idler
rotors marked in the same manner.
• Fit the power rotor 102 in the front cover 501.
(See fig. 12).
• Lubricate the rotor set.
• Assemble it including balancing bushes 376.
D4 20 © IMO AB
• Carefully insert the rotor set into the pump
body 401.
• Watch the position of O-ring 506.
• Make sure the bolt holes match.
• Fit the screws 451 and the washers 451A.
Tight the screws crosswise.
D4 18 © IM O AB
D.
Fig. 16
Fig. 17
E.
376
501
102
451A
451
401
501
506
Fig. 13
B.
• Check prior to assembly – by mounting the
balancing bushes (376) in the pump body
(401) and by placing a ruler over their end
faces – that the balancing bushes extend
0,0 - 0,25 mm above the end face on the pump
body. If not, replace the balancing bushes.
0,0 - 0,25 mm
