1. Rake
(1) Check the surface of the rack teeth for damage or wear.
(2) Check the contact surface of the seal for damage.
(3) Check the rail for bending or twisting.
(4) Check the packing ring for damage or wear.
(5) Check the seal for damage or wear.
2. Gear
(1) Inspect the surface of the gear teeth for damage and wear.
(2) Check the contact surface of the seal for damage.
(3) Check the O-ring for damage or wear.
(4) Check the seal for damage or wear.
3. Bearing
(1) Rotate the bearing to make sure there is no binding or excessive noise.
(2) Check for excessive play.
(3) Check the bearing for missing rollers.
4. Other
(1) Check for damage to the cylindrical hole of the rack housing.
(2) Check the boot for damage, cracks or signs of ageing.