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4.3.9 Disassembly – Crankshaft (CR-3253)
1. Before dismantling, ensure compressor is completely de-pressured.
2. Remove the drive coupling.
3. Remove the crankcase top cover.
4. Remove cylinder assemblies as described in
this section.
5. Remove the oil pump housing and oil pump as described in 4.2
6. Remove the mechanical seal assembly as described in 4.4.
7. Remove
mechanical
seal drive pin from crankshaft.
8. Remove the oil pump end crankshaft main bearing retainer plate.
9. Refer to Taperlock Bearing Housing drawing in section 4.3.5. This shows
crankshaft oil pump end Bearing Sleeve arrangement. With crankshaft
installed in crankcase Taperlock Sleeve (item # 2 ) is locked in place over
top of Bearing Housing (item # 1). The bearing is locked inside Bearing
Housing. The Taperlock Sleeve is what locks the bearing in place.
10. To remove the crankshaft, the Taperlock Sleeve must be pushed off the
Bearing Housing. Jacking screws are provided for this purpose.
11. Once the Taperlock Sleeve is free from the Housing the crankshaft bearing
can be slid from the Bearing Housing.
12. The best way to remove the crankshaft from the crankcase is to stand the
crankcase on its end (oil pump end).
13. Carefully lift the crankshaft from the drive end of crankcase.
14. Once the crankshaft is out, remove the crankshaft main bearing retaining
circlip from the drive end bearing housing. Remove the drive end bearing
housing from the crankshaft and bearing.
15. Check the main bearings for wear. Replace if necessary. To remove
bearings use a hydraulic ram puller.
Intermech Ltd. BBR-6015-2 Compressor Service Manual
