GMC S Series 1994, Repair Manual

Page: 78 / 919

ADJUSTER PLUG ASSEMBLY
REPLACEMENT
Figures 1,2, 11 thru 14
Tools Required:
J 7624 Spanner Wrench
J 6221 Adjuster Plug Bearing Remover and
Installer
❖
1.
2
.
3.
4.
5.
6
.
*
Remove or Disconnect
Steering gear from vehicle. Refer to “Power
Steering Gear Replacement” in Section 3B.
Disassemble
Adjuster plug lock nut (48) from housing (20).
Adjuster plug (55) from housing (20) using J 7624.
9
Important
Do not move or rotate valve stub shaft (40)
while adjuster plug is removed. Any rotation
of the stub shaft may cause balls (25) to be
lost from the gear circuit requiring complete
tear down of the unit.
Thrust washer bearing retainer (62) from adjuster
plug (55) by using a screwdriver to pry at raised area
of bearing retainer (62).
Bearing spacer (61), races (57 and 60) and thrust
bearing (58).
O-ring seal (56).
Retaining ring (50).
• Position adjuster plug (55) face down on a
suitable support (see Figure 13).
Needle bearing (53), dust seal (51) and lip seal (52)
using J 6221 to drive them from adjuster plug (55).
Assemble
Position adjuster plug (55) face up on a suitable
support.
Notice:
N eedle bearing m ust be installed with
identification on bearing facing tool to prevent damage to
bearing.
2 .
3.
4.
5.
6
.
7.
Needle bearing (53) to adjuster plug (55) using
J 6221.
Lip seal (52) to adjuster plug (55) using J 6221.
Dust seal (51) to adjuster plug (55) using J 6221.
Retaining ring (50).
O-ring seal (56) to adjuster plug (55).
• Lubricate O-ring seal (56) with white petro­
leum grease (not power steering fluid) to
prevent rolling and cutting.
Large bearing race (57), thrust bearing (58), small
bearing race (60) and bearing spacer (61) to adjuster
plug (55).
Thrust washer bearing retainer (62) to adjuster
plug (55).
• Lubricate lip of seals (51 and 52) with white
petroleum grease (not power steering fluid)
to prevent cutting during adjuster plug (55)
installation.