Spare Tire Carrier Hinge Lubrication (08-03-10-001)

Publication date: 2008-01-23
Reference number: 08-03-10-001

Spare Tire Carrier Hinge Lubrication

TECHNICAL SERVICE BULLETIN

Reference Number(s): 08-03-10-001, Date of Issue: January 23, 2008

Affected Model(s):	2008 and Prior HUMMER H2
Attention:	This bulletin is being issued to alert service technicians to special lubrication requirements. If greasing of the spare tire carrier hinge becomes necessary, it must be lubricated with GM Multi-Purpose Lubricant P/N 89022180 (U.S.) 89022181 (Canada). Use of other lubricants may result in stiff operation during extreme cold weather.

Lubrication of Spare Tire Carrier Hinge

Lubrication of the hinge is NOT a normally required maintenance item. The procedure below should only be performed if the hinge exhibits a stiff or binding condition.

Lubrication Procedure

IMPORTANT: Under normal conditions, the hinge assembly will NOT require lubrication.

Fig 1: View Of Hinge Assembly & Related Components

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: All H2 spare tire carrier hinges are currently equipped with a zerk fitting for greasing the hinge. Earlier built vehicles may be equipped with a 1/4 inch plug in place of the zerk fitting. The steps below instruct you to add the zerk fitting to the existing hinge if not equipped.

Remove the M6 set screw (4).
Remove the 1/4 inch plug above the set screw (If equipped).
Install a grease (zerk) fitting (3) where the 1/4 inch plug was (if equipped), apply grease, rotate the swing arm to ensure a uniform coating over the internal bushing.
Once the grease is seen exiting the set screw hole: stop, reinstall the set screw (4).
Tighten: Tighten the set screw to 9 N.m (80 lb in).
Again, grease via the zerk fitting (3), continue articulating the swing arm until grease is just visible on the casting grease seal (2). DO NOT ALLOW THE SWING ARM TO LIFT DURING LUBRICATION.
If the swing arm lifts, remove the set screw (4) and apply downward pressure while rotating the swing arm. Continue until the swing arm makes contact with the casting.
The hinge is now primed with the correct amount of grease.
You are not required to remove the zerk fitting on vehicles which required upfitting. It is allowable to re-install the 1/4 inch plug if the customer objects to the zerk fitting.

Tighten: Tighten the set screw to 9 N.m (80 lb in).

Parts Information

The following lubricant is in stock at GMSPO.

Parts Information

Part Number	Description
89022180 (U.S.) 89022181 (Canada)	GM Vehicle Care Multi-Purpose Lubricant 14 oz. (396.8 gr)

Warranty Information

Please use the following for vehicles repaired under the New Vehicle Warranty.

Warranty Information

Labor Operation	Description	Labor Time
B9842*	Lubricate Spare Tire Carrier Hinge	0.2 hr
*This labor operation number is for bulletin use only. This number will not be published in the Labor Time Guide.