Wartsila RT-flex50-D - Dismantling the Crank Angle Sensor Drive

Maintenance
9223−1/A1
RT-flex50-D
Wärtsilä Switzerland Ltd
9/ 22
5. Dismantling the crank angle sensor drive
Recommendation: To ensure a high availability and quality standard we recom-
mend that a complete crank angle sensor drive according to Fig. ’K’, view II (in-
cluding shaft encoder Fig. ’D’) always be kept in stock. Maintenance works as de-
scribed in sections 5 and 6 may be carried out only by qualified manufacturers as a
matter of principle.
⇒ Remove shaft encoder according to paragraphs 1.2 and 1.3.
⇒ Unbend locking plate 24, loosen and remove shaft nut 25 using hook spanner
94924.
⇒ Withdraw gear wheel 18 from the shaft 5.
Remark: If withdrawing by hand is not possible, the gear wheel must be removed
by means of the two tap holes ’GL’ and suitable tools, however, without striking and
damaging the toothing.
008.737/01
L
18 2524
5
GL
⇒ Remove circlip 28 using a snap ring tong.
⇒ Unbend locking plate 26, loosen and remove shaft nut 27 using hook spanner
94925.
⇒ Remove shaft 5, however, key 38 remains in situ.
008.738/01
M
38
28
27
26
2011
C
rank Angle Sensor Unit: Dismantling, Assembling and Adjusting