10
42. Begin by snugging up each bolt to remove any free play.
43. Verify that each bracket will seat squarely against its mounting surface without drawing the rack tube.
44. Make two to three passes through the tightening order to bring each bolt to its specifi ed torque value.
Inner brackets – 60 lb-ft.; Outer brackets – 75 lb-ft.
Check for Binding
At each step of fi nal tightening, the rack must be checked for binding or tightness throughout its range of travel.
A slight bend in the rack tube or the tube being pinched into a slight oval will create additional friction against
the rack’s internal guide bushing or piston (power rack). Binding symptoms, probable causes, and solutions are
explained in the following steps.
45. Using an even motion, turn the steering wheel from lock-to-lock. The amount of resistance should feel even
from one end of the travel range to the other. Any noticeable increase or decrease in tension indicates a
possible issue.
• Notchy feeling or bump every 1/8th turn
– The
pinion set screw adjustment at the base of the
pinion housing is too tight. Loosen the large
lock nut (15/16” hex) surrounding the set screw
(5/16” allen) at the bottom of the pinion housing.
While lightly rocking the steering wheel back and
forth, tighten the set screw until it is seated then
loosen 1/4 turn. Hold the set screw in position
with an allen wrench and tighten the lock nut. The
steering should feel smooth and have 1/16” to
1/8” of play at the steering wheel. Too loose of an
adjustment allows excessive play at the steering
wheel. Too tight of an adjustment makes steering
overly sensitive and can prevent the system from
returning to center while driving.
• Notchy feeling or bump every ½ or ¼ turn
–
This usually indicates a binding condition at the
intermediate steering shaft u-joints. Verify that the
steering shafts do not extend into the open area
of u-joint, causing it to bind.
• Gradual increase in resistance
- The rack tube may be slightly bent due to bracket misalignment. This
must be corrected before proceeding.
• Light variations in tension
– This is very common and will smooth out once the internal guide bushings
have developed wear patterns (approx. 1,000 miles); similar to piston rings seating within a cylinder.
46. Continue by tightening the passenger-side outer clamp to 13-15 lb-ft., and check for binding.
• Tightness near full-left lock (manual rack) or center of travel (power rack)
indicates that the
passenger-side clamp has created one of the following issues.
• The clamp is too tight and needs to be loosened slightly.
• The clamp is not square to the bracket-side clamp. Check by measuring the gap at the opposite ends
of the clamp.
• There is debris, a burr, or other imperfection on the clamp or rack tube that must be removed.
• Recheck for binding.
47. Tighten the two inner clamps to 13-15 lb-ft., and check for binding.
• Tightness near full-left lock (manual rack) or center of travel (power rack)
indicates that the
passenger-side clamp has created one of the following issues.
• The clamp is too tight and needs to be loosened slightly.
Содержание RCKP214
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