Steering Gear - Leak At the Input Shaft
Article No.93-6-7
03/17/93
^ STEERING - POWER - XR50 STEERING GEAR - FLUID LEAKAGE AT THE INPUT SHAFT
^ STEERING GEAR - XR50 - AVAILABILITY OF NEW INPUT SHAFT SEAL KIT
LIGHT TRUCK:
1982-92 BRONCO, ECONOLINE, F-150-350 SERIES
1983-90 BRONCO II
1983-92 RANGER
1988-92 F-47
1991-92 EXPLORER
This TSB article is being republished in its entirety to show changes in the Labor Operations.
ISSUE:
Power steering fluid may leak around the input shaft of the XR50 steering gear because the input shaft seals may break down under higher temperatures.
ACTION:
Install a new input shaft seal service kit, with improved seals. The new seals can withstand higher operating temperatures. Refer to the following procedure for removal and installation information.
The new service kit (E2TZ-3L526-A) allows technicians to repair the input shaft seal and obtain only the parts required instead of using the current seal kit which includes eight (8) additional seals required for other repairs. The new input shaft seal service kit does not replace the current (D7AZ-3E502-A) seal kit.
The new service kit (E2TZ-3L526-A) includes the following components.
^ (1) Input shaft seal
^ (1) Input shaft dust seal
^ (1) Snap ring
REMOVAL PROCEDURE
1. Remove the steering gear from the vehicle. Refer to the appropriate Light Truck Service Manual for service details.
2. Drain all the remaining fluid from the steering gear into a suitable container.
3. Mount the steering gear vertically in a soft-jawed vise with the input shaft pointing up.
4. Remove the four (4) bolts retaining the valve housing to the steering gear, Figure 1.
5. Turn the loosened valve housing clockwise until there is about 1.5" (34 mm) between the valve housing and the steering gear housing.
6. Insert two (2) bolts, about 62 mm in length, through the valve housing into the steering gear keeping the 34 mm clearance between the valve housing and the steering gear using the Spacer-Valve Housing To Piston Tool T66P-3553-C.
7. Remove the locknut retaining the set screw from the valve housing, Figure 1.
8. Using Adjuster and Locknut Wrench Tool T66P-3553-B, remove the worm bearing locknut, Figure 2.
9. Remove the previously installed bolts and then remove the valve housing.
10. Mount the valve housing into the Bench Mounted Holding Fixture T57L-500-B.
11. Using Puller Attachment T58L-101-B and Slide Hammer T59L-100-B, remove the dust seal from the valve housing, Figure 3.
12. Remove the snap ring from the valve housing.
13. Turn the bench-mounting holding fixture to invert the valve housing.
14. Insert the Input Shaft Bearing/Seal Tool T65P-3524-A2 and T65P-3524-A3 into the valve body assembly opposite the oil seal end. Gently tap the bearing and the pressure seal out of the housing, Figure 4.
INSTALLATION PROCEDURE
1. Inspect the bearing surface and the input shaft for any damage. Replace components as required.
2. Coat the bearing and seal surface of the housing with petroleum jelly or equivalent.
3. Install the bearing with the metal side covering the rollers facing upward.
a. Seat the bearing in the valve housing using Input Shaft Bearing/Seal Tool T65P-3524-A1.
b. Be sure the bearing rotates freely, Figure 5.
4. Dip a new oil seal in gear lubricant, standard transmission lubricant (SAE 80W) D8DZ-19C547-A or equivalent.
a. Place the seal in the housing with the metal side facing upward.
b. Drive the seal into the housing until the outer edge does not quite clear the snap ring groove, Figure 6.
5. Insert the snap ring in the housing until it fully seats in the groove.
6. Place the new dust seal in the housing with the dished side facing up. Using Input Shaft Bearing/Seal Tool T65P-3524-A, drive the dust seal into place.
NOTE:
WHEN THE VALVE HOUSING IS REINSTALLED, THE SEAL WILL BE LOCATED JUST PAST THE UNDERCUT IN THE INPUT SHAFT.
7. Pack the area between the two seals with Multi-Purpose Grease (DOAZ-19584-AA).
8. Inspect the valve housing O-ring for damage, Figure 1. Replace if required.
9. Install the valve housing on the input shaft. Install the two (2) 62 mm temporary bolts keeping 34 mm between the valve housing and the gear housing as done during Step 6 on the removal process.
10. Install the locknut and tighten to 55-90 lb.ft. (75-122 N-m). Install the locknut set screw and tighten to 15-25 lb.in. (1.7-2.8 N-m).
11. Remove the 62 mm temporary bolts and position the valve housing onto the gear housing. Install the valve housing retaining bolts and tighten to 30-45 lb.ft. (40-60 N-m).
12. Remove the steering gear from the soft-jawed vise and install it into the vehicle. Refer to the appropriate Service Manual for installation details.
PART NUMBER PART NAME CLASS
E2TZ-3L526-A Input Shaft Seal Kit CG
DOAZ-19584-AA Multi-Purpose Grease B
OTHER APPLICABLE ARTICLES: NONE
SUPERSEDES: 93-4-5
WARRANTY STATUS:
Eligible Under Bumper To Bumper For 1992 Models, Basic Warranty Coverage For All Other Models
OPERATION DESCRIPTION TIME
930607A 1982-1983 F-Series And 1.2 Hr.
Econoline, Ranger 4X4 And
4X2,1983 Bronco II
930607B 1984-1992 All With Gas 1.6 Hr.
Engines
930607C 1984-1992 All With Diesel 2.0 Hr.
Engines
DEALER CODING
BASIC PART NO. CONDITION CODE
3D526 78
OASIS CODES:
303000