Replacing the bearings and pinion

Assemble the components with grease (about 1/5 of a tube of grease as supplied by the Parts Department).

REPLACING THE BEARINGS AND PINION

DIMANTLING

With the rack removed.

• Remove fig. I :
  • - the lock nut A and the adjusting plug B,
  • - the rack damper C.
• Punch two diemetrically opposite holes in the pinion lip seal, using a fine, tapered punch.
• Use tool 0.0709 (see illustration in section 15) to extract the lip seal fig. II.
• Remove :
  • - the circlip retaining the bearing,
  • - the adjusting shim.
• Use a press to remove the pinion with the bearings fig. III.

The maximum diameter of the drift to press on the outer race of the needle roller bearing is 15 mm.

ASSEMBLING

• Position the new needle roller bearing by hand, using a drift, of 22 mm maximum diameter to drive it in fig. IV until it butts.
• Insert 80 cm³ of grease into the pinion housing (about 4/5 of the tube supplied by the Parts Department).
• Fit the pinion fig. V (supplied pre-assembled with its bearing).

Use a plastic mallet to drive it in until it butts.

• Determine the thickness of the bearing adjustment shim (supplied in sets of 3 thicknesses : 0,05 - 0,10 and 0,15 mm),
  • - fit the thickest shim and fit the circlip, if possible,
  • - if not, fit the next thinner shim.
• Fit the circlip.
• Lubricate the seal (exterior and lips) and place it in position fig. VI :

Use a 41 mm diameter tube to drive it in until it is just flush with the housing, or tap it in on its circumference.

• Adjust the damper, see the following pages.