218. Steering Roll
a. Removal. Refer to paragraph 213a.
b. Disassembly.
(1) Remove the bearing adjusting bolts (2) on both sides of the axle shaft (6).
(2) Drive out the collar pins (7) and remove the axle shaft collars (4) from both ends of the axle shaft (6).
(3) Unscrew and remove the grease fittings (5).
(4) Use a wood block and sledge hammer to bump the axle shaft (6) until there is sufficient opening between
the steering rolls to insert a bar.
(5) Insert a pry bar between the two roll sections and pry the rolls apart until the outer dust guards (8) and
bearings (9) leave the axle shaft (6).
(6) Block one of the steering rolls to prevent it from sliding and insert a greased steel plate under the roll to be
removed.
(7) Wrap chain or rope around the roll and pull it off the axle shaft with a fork truck.
(8) Support the axle shaft with a crane, jacks, or blocks and pull the second steering roll from the axle shaft.
(9) Press the inner dust guards (8), spacers (if they are used), and bearings (9) off the axle shaft (6).
(10) Use a bearing puller and pull the bearing cups (10) from the rolls.
c. Cleaning. Wash all parts in cleaning solvent and wipe them with a clean absorbent cloth. Blow off all lubrication
passages in the shaft with clean compressed air. Clean the adjusting bolt threads with a wire brush and cleaning solvent.
d. Inspection and Repair.
(1) Inspect the steering rolls for breaks, cracks, and leaks. Weld all minor cracks and breaks. Replace the
steering rolls if they are badly broken, cracked, warped, or damaged. Inspect the machined surface of the
rolls and replace the rolls if the surface is badly scored, cut, or damaged.
(2) Inspect all bearings for wear, corrosion, damage, and scoring. Check the bearing rollers for free rotation.
Inspect the roller faces for scoring, pitting, and cracking. Replace all defective bearings and cups.
(3) Replace the lock wires.
(4) Inspect the dust guards for twisting, warpage, wear, and damaged or scored sealing surfaces. Replace the
dust guards if they are worn, cracked, or warped.
341
