Hummer H1 (2006+). Manual — part 10
1-38
General Information, Lubrication and Maintenance
________________
Figure 1-32: Idler Arm and Tie Rod Lube Points
Figure 1-33: Tie Rod and Steering Arm Lube Points
Figure 1-34: Intermediate Steering Shaft Lube Points
IDLER ARM
FITTINGS
TIE ROD END
FITTING (2)
STEERING ARM FITTING
TIE ROD END FITTINGS
LUBE FITTINGS
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General Information, Lubrication and Maintenance 1-39
5745804
Power Steering Fluid
Check the fluid level in the power steering reservoir monthly and adjust level as necessary. If fluid is hot, level should be between
“HOT” and “COLD” marks on the cap indicator. If fluid is cool, level should be between “ADD” and “COLD” marks. In either
condition, level must be above “ADD” mark.
NOTE: Power steering fluid does not require periodic replacement.
Figure 1-35: Power Steering Pump Reservoir
Cooling System Fluid Level Check
Check coolant level at the surge tank monthly and adjust level as necessary. Level should be at, or above, the cold fill line (Figure-
1-36).
Figure 1-36: Surge Tank Coolant Level Indicator Location
POWER STEERING
PUMP RESERVOIR
FILLER CAP
SURGE TANK
COLD FILL LINE
1-40
General Information, Lubrication and Maintenance
________________
Master Cylinder Fluid Level Check
CAUTION: Use DOT 3 brake fluid only. Failure to use the proper fluid may affect brake performance or damage brake compo-
nents.
Check master cylinder fluid level monthly. Correct fluid level is to within 1/2 in. (13 mm) from the “MAX” indicator.
Clean the master cylinder cap and exterior before checking fluid level. Dirt on the cap must not be allowed to enter the reservoirs.
Add DOT 3 fluid if necessary and reinstall the cap (Figure-1-37).
Figure 1-37: Master Cylinder Cap Location
Wheels/Tires/CTIS
Inspect tire and wheel condition. Look for loose wheel nuts and rim stud nuts, or dented, deformed wheel rims. Note tire tread wear
and sidewall condition. If the vehicle is used for extensive off road operation, check the sidewalls for bulges, bead damage, cuts,
fabric breaks.
If the tire treads are worn, note type of wear. If wear is only on one shoulder, toe setting or camber may be incorrect. If tires are
scalloped or worn at crown only, or both shoulders, inflation pressures are probably incorrect.
If the vehicle is equipped with CTIS, cycle the system and check operation. Verify tire inflation pressures with an accurate gauge.
Serpentine Belt
Replace the belt if frayed, cut, or torn. Minor, small surface cracks within the belt grooves are normal. Do not replace the belt un-
less cracks extend all the way through or across the belt face.
Body Lubrication Points
Every 6 months or 6,000 mi (9,700 km), whichever occurs first, lubricate the: hood hinge, hood stops, tailgate hinges, door hinges,
door handles, parking brake lever and service brake pedal push rod stud (Figure-1-38). Suggested lubricants include engine oil or
ATF for hinges; LPS silicone lube for linkages, handles, and brake push rod; white grease for seat tracks, window regulators and
park brake lever. Door locks should use a graphite based lubricant such as Lock-Eze. Refer to the Recommended Fuel/Fluids/Lu-
bricants/Capacities section for more detailed lube information.
MASTER CYLINDER
CAP
MAX FLUID
LEVEL
INDICATOR
12-1-05
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General Information, Lubrication and Maintenance 1-41
5745804
Figure 1-38: Body Lubrication Points
ESSENTIAL TOOLS
NOTE: See page 1-1 of the 2006 Service Parts Catalog for information on ordering Kent-Moore tools.
Engine
Tool No.
Description
EN-47913
Wrench, Belt Tensioner
J–23523-F
Harmonic Balancer Remover/Installer Set
J–23951
Water Manometer
J–26999-10
Compression Gauge Adapter
J–26999-20
Adapter, Compression Gauge
J–26999-30
Compression Gauge Adapter
J–34826
Socket, 36mm 12 Point
J–42000-EU
Digital Battery Tester
J–44640
Installer, Valve Stem Seal
J–44641
Remover, Rear Crankshaft Seal
J–44642
Installer, Rear Crankshaft Seal
J–44643
Flywheel Holder
J–44644
Remover, Front Crankshaft Seal
J–44645
Installer, Front Crankshaft Seal
J–44646
Compressor, Valve Spring (On-Vehicle)
J–44648-A
Storage Case - Duramax 6.6L Tools
J-45059
Angle Meter
J–46594
Tool, Injector Removal
DOOR
TRANSFER CASE
DOOR
DOOR
TAILGATE
DOOR
TRANSMISSION
SEAT
PARKING BRAKE
SERVICE BRAKE PEDAL
HOOD
SHIFT LINKAGE
SHIFT LINKAGE
PUSH ROD STUD
LEVER
HINGE
HINGE
HANDLE
TRACKS
HINGE
LOCKS
HINGE
CENTER
HOOD
STOP
HOOD
STOP
(GREASE)
HOOD
STOP
(GREASE)
(GREASE)
11-1-05
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