S15/T15 2WD P/U V6-262 4.3L VIN W CPI (1993)
Steering Gear: Service and Repair
Manual Steering Gear - Saginaw Recirculation Ball
Removal/Installation
1.
On models equipped with power steering, disconnect pressure and return hoses from steering gear housing, then plug hose ends and gear
housing ports to prevent entry of dirt.
2.
On all models, disconnect battery ground cable and remove coupling shield if so equipped.
3.
Remove retaining nuts, lock washers and bolts at steering coupling to steering shaft flange.
4.
Remove pitman arm nut and washer from pitman shaft and mark relation of arm position to shaft, then remove pitman arm using a puller.
5.
On turbocharged models, raise and support vehicle.
6.
Remove charge air cooler radiator.
7.
Lower vehicle, then remove intermediate shaft assembly at steering gear.
8.
Remove attaching bolt and nut to pot joint coupling. Ensure alignment marks line up.
9.
On all models, remove screws securing steering gear to frame and remove gear from vehicle.
10.
Reverse procedure to install.
Disassembly
Fig. 4 Steering gear assembly
1.
Referring to Fig. 4, loosen adjusting screw locknut and remove housing side cover by removing adjusting screw.
2.
Loosen locknut and back off worm bearing adjuster several turns, then remove housing end cover and gasket.
3.
Remove lower thrust bearing, steering shaft and upper bearing from housing.
4.
Remove ball return guide clamps and guides from ball nut. Turn ball nut over and remove ball nut from steering shaft worm.
Inspection
1.
Clean and inspect all ball and roller bearings and races, including race in housing.
2.
Inspect pitman shaft bushings in gear housing and end cover. If bushings are worn excessively, replace.
3.
It is advisable to replace pitman shaft grease seal in housing to avoid possible leakage of lubricant. Seal must be installed with feather edge toward
inside of housing.
4.
Inspect pitman shaft for wear or pits in bearing races, which would require replacement of shaft.
5.
Check shaft for straightness.
6.
Inspect teeth of ball nut and pitman shaft. If scored or excessively worn it is advisable to replace both parts to insure proper mating of teeth.
7.
Check serration of pitman shaft; if twisted replace shaft.
8.
Check fit of pitman shaft adjusting screw and shim in slot in end of pitman shaft. With shim in place, screw head must be free to turn in slot with
zero to .002 inch end play. If endplay is excessive, selectively fit a new shim, which are available in four different thicknesses.
Assembly
Lubricate all seals, bushings, bearings and gears with multi-purpose gear lube prior to installation.
1.
Position ball nut over worm shaft so that deep side of teeth will be toward side cover when installed in gear housing.
