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Hummer H1 (2002+). Manual - part 125

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Steering System 8-7

05745159

STEERING COLUMN REPLACEMENT

Removal

NOTE:

Before removing steering wheel, turn steering column

to gain access to intermediate shaft mounting hardware.

Remove steering wheel.

Remove close-out panel.

Remove locknut, lockwasher, three washers, and thru-bolt
from mounting bracket and loosen pivot bolts. Column
will drop down as it pivots in bracket (Figure 8-11).

NOTE:

Before performing step 4, be certain to put scribe

marks that indicate the position of the intermediate shaft yoke
relative to the splines.

Remove bolt on intermediate shaft yoke and pull yoke
from splines (Figure 8-11).

Remove five screws and shroud (two halves) from
steering column.

Disconnect ground wires from steering column.

Disconnect two multi-switch connectors from multi-
switch.

Disconnect two ignition switch connectors from ignition
switch.

Remove multi-switch and ignition switch from steering
column.

10. Remove two locknuts, washers, pivot bolts, and steering

column from mounting bracket.

Installation

Hang steering column from mounting bracket with two
pivot bolts, washers, and locknuts. Finger tighten locknuts.

Install ignition switch and multi-switch on steering
column (Figure 8-11).

Connect two ignition switch connectors to ignition switch.

Connect two multi-switch connectors to multi-switch.

Secure shrouds to steering column with five screws.

Secure ground wires to steering column with bolt and nut/
lockwasher assembly.

Raise steering column to mounting bracket. Insert thru-
bolt, three washers, lockwasher, and locknut. Finger
tighten locknut.

Slide intermediate shaft yoke onto splines while carefully
aligning scribe marks. Insert bolt and tighten locknut to 60
lb-ft (81 N•m).

Tighten thru-bolt locknut to 31 lb-ft (42 N•m).

10. Tighten pivot bolt locknuts to 10 lb-ft (14 N•m).

11. Install steering wheel.

12. Install close-out panel.

13. Operate vehicle to verify steering wheel alignment.

Figure 8-11: Steering Column Components

MOUNTING BRACKET

THRU-BOLT

SHROUD

IGNITION SWITCH

SHROUD

MULTI-SWITCH

STEERING COLUMN

INTERMEDIATE SHAFT

60 lb-ft (81 N •m)

MULTI-SWITCH

10 lb-ft (14 N•m)

31 lb-ft (42 N•m)

CONNECTORS

CONNECTOR

LOCK CYLINDER

CONNECTOR

PIVOT BOLT

4-1-00

8-8

Steering System

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STEERING COLUMN MULTI-SWITCH
REPLACEMENT

NOTE:

This procedure covers the directional signal, horn,

high beam, and hazard light switches.

Removal

Follow steps 2, 3, 5 and 6 of

Steering Column Replace-

ment

Remove two screws and multi-switch from steering
column (Figure 8-12).

Remove control handle from multi-switch by pulling
outward.

Installation

Attach control handle to multi-switch (Figure 8-12).

Secure multi-switch to steering column with two screws.

Perform reverse of

Removal

Step 2 above.

Figure 8-12: Steering Column Multi-Switch

Replacement

LOCK AND SWITCH HOUSING ASSEMBLY
REPLACEMENT

Removal

Disconnect battery ground cable.

Follow steps 2, 3, 5 and 6 of

Steering Column

Replacement

Remove two screws and multi-switch from steering
column (Figure 8-12).

Remove screw and interlock cable from ignition switch
(Figure 8-13).

Remove two bolts and lock and switch housing assembly
from steering column.

Installation

Apply thread-locking compound to bolt threads and secure
lock and switch housing assembly on steering column
with two bolts (Figure 8-13).

Secure interlock cable to ignition switch with screw.

Install multi-switch.

Perform reverse of

Removal

Step 2 above.

Connect battery ground cable.

Verify that ignition switch operates properly.

Figure 8-13: Lock and Switch Housing Assembly

Replacement

STEERING

CONTROL HANDLE

MULTI-SWITCH

COLUMN

LOCK

CYLINDER

HOUSING

INTERLOCK CABLE

LOCK AND SWITCH

STEERING COLUMN

HOUSING ASSEMBLY

IGNITION SWITCH

4-1-00

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Steering System 8-9

05745159

STEERING COLUMN REPAIR

Lock and Switch Housing Assembly

Disassembly

NOTE:

The key must stay in the ignition switch at all times.

Remove the lock cylinder and key assembly from the lock
cylinder housing (Figure 8-14).

Remove two screws securing the upper retainer plate to
the lock cylinder housing. Remove the retainer plate, the
upper bearing assembly and upper bearing sleeve from the
lock cylinder housing.

Remove two screws and the multi-switch assembly from
the lock cylinder housing (Figure 8-12).

Remove two screws securing the ignition switch assembly
to the lock cylinder housing. Remove the ignition switch
assembly (Figure 8-14).

Remove six stakes from the tube and bracket assembly
(Figure 8-15).

Remove two screws and remove the lock cylinder housing
from the tube and bracket assembly.

Remove the retainer ring, shaft, and bearing from the tube
and bracket assembly.

Assembly

Install the shaft, bearing, and retainer ring into tube and
bracket assembly (Figure 8-15).

Secure the lock cylinder housing to the tube and bracket
assembly with two screws. Tighten screws to 6-7 lb-ft
(8.1-9.4 N•m).

Stake bearing securely in six (6) places (Figure 8-15).

Secure the ignition switch assembly to the lock cylinder
housing with two screws. Tighten screws to 35-40 lb-in.
(3.9-4.5 N•m) (Figure 8-14).

Secure the multi-switch assembly to the lock cylinder
housing with two screws. Tighten screws to 35-40 lb-in.
(3.9-4.5 N•m) (Figure 8-12).

Install the upper bearing assembly and upper bearing
sleeve in the lock cylinder housing (Figure 8-14).

Install the retainer plate on the lock cylinder housing with
two screws. Tighten screws to 35-40 lb-in. (3.9-4.5 N•m).

Install the lock cylinder and key assembly in the lock
cylinder housing assembly.

Verify that ignition switch operates properly.

Figure 8-14: Lock and Switch Housing Components

IGNITION SWITCH

IGNITION LOCK CYLINDER

COLUMN LOCK

STEERING COLUMN

UPPER BEARING

UPPER STEERING

BEARING RETAINER PLATE

GEAR RETAINER

FLAT BEARING

LOCK GEAR

SLEEVE

COLUMN BEARING

ASSEMBLY

LOCK CYLINDER

HOUSING

ASSEMBLY

AND KEY ASSEMBLY

4-1-00

8-10

Steering System

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Steering Column and Shaft

Disassembly

Remove two screws and the multi-switch assembly from
the lock and switch housing (Figure 8-12).

Remove two screws and lock and switch housing
assembly from steering column (Figure 8-13).

Remove six stakes from the tube and bracket assembly
(Figure 8-15).

Remove the shaft, retainer ring, and bearing from tube and
bracket assembly.

Remove retainer ring and bearing from the shaft.

Figure 8-15: Steering Column and Shaft

Assembly

Slide bearing onto shaft and secure it with retaining ring
(Figure 8-15).

Slide the shaft into the tube and bracket assembly.

Install six stakes into the tube and bracket assembly.

Secure lock and switch housing assembly to steering
column with two screws (Figure 8-13).

Connect the multi-switch assembly to the lock and switch
housing with two screws (Figure 8-12).

STEERING WHEEL HUB COVER AND STEERING
COLUMN SHROUD REPLACEMENT

Removal

Remove three screws holding front half of steering wheel
hub cover to the rear half.

Remove steering wheel.

Remove rear half of cover.

Remove five screws holding lower steering column
shroud to upper shroud.

Loosen two pivot bolts at rear of steering column
mounting bracket.

Remove thru-bolt from front of mounting bracket.
Steering column will pivot downward.

Remove upper shroud.

Installation

Place upper shroud in position over top of steering col-
umn.

Pivot steering column upward and secure with thru-bolt,
three washers, lockwasher, and locknut.

Tighten locknuts on pivot bolts.

Secure lower shroud to upper shroud with five screws.

Place rear half of steering wheel hub cover over shaft.

Install steering wheel.

Secure front half of shroud to rear half with 3 screws.

STEERING

STAKES

STEERING COLUMN

BEARING

RETAINER RING

COLUMN

TUBE AND BRACKET

ASSEMBLY

SHAFT

4-1-00

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