Buffer Cylinder

12. To remove the outer horizontal sheaves, remove the capscrews which secure the dirt shield to the pin and sleeve and removethe dirt shield.

13. Attach rigging to the sheave and attach the rigging to a crane. With the crane, lift the sheave from the pin.

14. Unbolt and remove the labvrinth seals from the sheave. •

15. Remove the sleeve lock nut lock bar screw and remove the lock bar and lock nut. Slide the sleeve from the bearings. Removethe bearings from the sheave.

16. Screw an eyebolt into the top ofthe sheave pin and secure the eyebolt to a crane. Remove the pin retainer capscrew and retainer. With the crane, lift the pin from the frame.

17. To remove the center setofhorizontal sheaves, remove the capscrews which secure the dirt shield to the pin and remove the dirt shield.

18. Secure the sheaves to a crane with rigging and with the crane lift the sheaves from the pin. 19. Remove the sleeve lock nut bar screws from both ends of the sleeve. Remove the lock bars and lock nuts.

20. Slide the sheaves off the sleeve. Remove the labyrinth seals and bearings from the sheaves.

21. Screw an eyebolt into the end of the pin and secure the eyebolt to a crane with rigging.

Remove the pin retainer capscrews and retainer. With the crane, lift the pin out of the frame.

22. Remove the limiting ropes from each side of the fairlead.

23. Remove the swivel frame dire troughs. 24. Remove the buffer cylinder support and oil pIpmg.

25. Support the buffer cylinder with rigging and a crane. Remove the cylinder anchor pins and lift the cylinder out of the frames.

26. Secure one of the swivel frames to a crane. On the lower swivel frame pin, remove the dirt shield and gasket. Remove the pin retainer bolt chocks and remove the retainer'bolt.

27. Put a jack under the pin and remove the capscrews securing the pin retainer to the frame. 28. Remove the upper pin dirt shield and screw an eyebolt into the pin. Secure the eyebolt to a come-along and remove the pin retainer. Pull the pin from the frame.

29. With the crane, lift the swivel frame from the fairlead frame. Remove the bushings and thrust washers from the swivel frame.

30. Inspectall parts for wear or damage and repair or replace all damaged or worn parts. Clean all parts thoroughly, then reassemble in reverse of disassembly.

NOTE: Be sure all oil seal lips face in the correct direction. Also, be sure all shims are installed.

31. After the fairlead is completely assembled, lubricate all lube points. Install the drag ropes per topic DRAG ROPE REPLACEMENT. Remove the outer horizontal sheaves dirt shield.

Screw two 3/4 inch eyebolts into the sleeve 180 0 apart. Use the eyebolt to rotate the sleeve on the pin until all clearance is gone between rope and sheaves. Match holes in pin and sleeve to line up with holes in dirt shield, then install capscrews. Tighten and lockwire capscrews.

Buffer Cylinder

To repair the buffer cylinder (figure 76), proceed as follows:

1. Remove the buffer cylinder from the fairlead as described in step 25 of topic STRAIGHT

THROUGH TYPE FAIRLEAD.

2. Remove the bushing spacers from the piston rod and end plate. 3. Remove the piston rod and end plate bushing retainers and bushings. 4. Remove the cylinderhead plate bolts and slide the piston and head plate out of the cylinder.

Remove the cylinder support plate. 5. Remove the brass plugs in the piston, then remove the piston to piston rod anchor pin.

Remove the piston rod from the piston and head plate.

6. Remove the wiper retainer, piston rod wiper, oil seal, head plate, bushingretainer and bushing from the head plate. Remove the a-ring from the head plate.