1. Propeller Shaft survey

2. Propeller Shaft survey
Periodicity is defined in Rules Pt A, Ch 2, Sec 2, 5.5 and Figure 2
10 years periodicity granted provided that:
The design is in accordance with the rules
Modified survey conducted after 5 years + 6 months
Stern tube lub oil analysis is conducted every 6 months
MON-SHAFT granted provided :
Design is in accordance with the rules
Temperature monitoring system fitted to stern tube bearing
Partial survey conducted every 5 years + 6 months
Stern tube L.O. Analysis is conducted every 6 months

3. Propeller Shaft survey
Review log book & records for:
Stern tube L.O. analysis
L.O. consumption
Stern tube bearing temperature (if applicable)
Verify with the Chief Engineer if any abnormal vibration
Shaft withdrawn and examined:
Exposed parts
Cone and, if applicable, key & key-way
Bearing journal surfaces
Shaft in way of seals
Thread, nut & locking arrangement, coupling & bolts

4. Propeller Shaft survey
Forward part of taper and key-way crack tested
Stern tube bush inspected for:
Condition of white metal
Loss of bonding
Excessive clearance
Clearances recorded by:
Measuring, jacking, feeler, poker gauge

5. Propeller Shaft survey
Shaft seal to inspect for :
Wear & tear
Damage to sealing faces
Damaged ‘O’ seals
Liner wear
Propeller inspected for :
Blades for damage and cracking
Taper bore for damage and fit
On assembly check :
Jacking pressure
Movement
Check seal for leakage

6. C. P. Propeller Shaft inspected as before except that :
Coupling flange to be inspected
Studs, nuts & locking arrangements
Propeller blades to inspect :
Seals
Blade operating connections to inspect, clearances to check
Operating system to examine & test
Piping to inspect & test
Hydraulic pumps to examine & test
L. O. tank low level alarm to test

7. C. P. Propeller

8. C. P. Propeller

9. C. P. Propeller

10. C. P. Propeller

11. Propeller shaft – Liner(s)
Check liner for damage & wear
Check shrink fit on shaft
Inspect liner / propeller seal
Check inboard gland
Inspect Lignum Vitae bush
Measure clearances
Check sheathing (if fitted)

12. Modified Survey Check log book & records for :
L.O. analysis & consumption
Bearing temperature monitoring (if applicable)
Draw propeller off taper
Inspect taper and bore of propeller
NDT of forward 30% of taper
Examine gland & seals

13. Modified Survey Record clearances
Inspect propeller for damage / cracks
Check jacking pressure for refitting
Check nut locking arrangements
Test seal for leakage

14. Thruster Review log book & records for L.O. analysis & consumption
Inspect & remove propeller
Inspect shaft / NDT taper
Inspect threads, nut & locking arrangements
Inspect seals
Inspect hull liner for corrosion / erosion