Model: PB59K

Pre-disassembly Inspection and Adjustment
Before disassembling power steering gear component parts, make sure there is no oil leakage around sealing portion and check steering turning torque as follows:
Check sealing portion.
^ Sector shaft cover O-ring
^ Sector shaft U-packing
^ Sector shaft oil seal Rear housing O-ring
^ Gear housing O-ring
Discard any oil seals and O-rings which have been removed. Replace oil seals and O-rings if sealing surface is deformed or cracked.

TURNING TORQUE MEASUREMENT
1. Measure turning torque at 360° position.





a. Install steering gear on Tool.
b. Turn stub shaft all the way to right and left several times.





c. Measure turning torque at 360° position from straight-ahead position with Tools.
Turning torque at 360°: 0.15 - 0.78 Nm (1.5 - 8.0 kg-cm, 1.3 - 6.9 inch lbs.)





d. Measure turning torque at straight-ahead position.
Straight-ahead position is a position where stub shaft is turned 2.14 turns (two full turns and 50°) from lock position.
Turning torque at straight-ahead position:
0.25 -1.32 Nm (2.5 -13.5 kg-cm, 2.3 -11.6 inch lbs.) higher than turning torque at 360°
Maximum turning torque:
1.03 -1.47 Nm (10.5 - 15 kg-cm, 9.2 - 13.0 inch lbs.)
If turning torque is not within specifications, adjust by turning sector shaft adjusting screw.





2. Tighten adjusting screw lock nut with tools.