300Tdi Discovery
STEERING
7
OVERHAUL
Fitting sector shaft cover
73. Fit new sealing ring to cover.
74. Align cover with casing.
75. Screw cover assembly fully on to sector shaft
adjuster screw.
76. If necessary back off sector shaft adjuster screw.
Tap cover in place to allow cover to joint fully
with casing.
NOTE: Before tightening fixings, rotate
input shaft to ensure sector shaft roller is
free to move in valve worm. If initial
resistance is left, turn adjuster screw
approximately two turns in a clockwise direction.
77. Fit cover bolts. Tighten to
75 Nm.
Fitting cylinder cover
78. Fit new square section seal to cover.
79. Remove slave bolt fitted at instruction 68. Press
cover into cylinder just to clear retainer ring
groove.
80. Fit retaining ring to groove with one end of ring
positioned 12 mm from extractor hole.
Adjusting sector shaft
NOTE: Refit drop arm and tighten nut
sufficiently to ensure that no backlash
exists between drop arm and sector shaft.
81. To set worm on centre, rotate input shaft to full
inner-lock (full right lock for a left hand drive
vehicle, full left lock for a right hand drive
vehicle). Rotate input shaft back towards centre
two full turns.
82. The box is now on centre and can be adjusted.
