Hummer H3. Manual — part 1316

Replacement and/or Rear Disc
Brake Pads Replacement .

Did you complete the cleaning, inspection
and replacement?

Go to Step 12

12

Visually inspect each of the disc brake
rotor shields/backing plates for evidence of
contact with the brake rotors.
Are any of the brake rotor shields/backing
plates contacting the brake rotors?

Go to Step 13

Go to Step 14

13

Repair or replace the disc brake rotor
shields/backing plates as required. Refer to
Front Brake Shield Replacement and/or
Rear Disc Brake Backing Plate
Replacement .
Did you complete the repair or
replacement?

Go to Step 14

-

14

1. Check the thickness of each of the

disc brake rotors.

2. Make a determination for each brake

rotor if the rotor can be
REFINISHED and REMAIN
ABOVE the minimum requirements.

Refer to Brake Rotor Thickness
Measurement .Does the disc brake rotor
meet the minimum requirements for
REFINISHING?

IMPORTANT:

Make the following determination AND
ANSWER the question INDIVIDUALLY for
EACH rotor.

Go to Step 15

Go to Step 18

Inspect each of the disc brake rotors for

IMPORTANT:

Perform the following inspection AND
ANSWER the question INDIVIDUALLY for
EACH rotor.

2007 Hummer H3

2007 BRAKES Hydraulic Brakes - H3

15

thickness variation that exceeds the
maximum acceptable level. Refer to Brake
Rotor Thickness Variation
Measurement .Does the brake rotor
exhibit thickness variation that exceeds the
maximum acceptable level?

Go to Step 17

Go to Step 16

16

1. Inspect each of the disc brake rotors

for the following surface and wear
conditions:

Refer to Brake Rotor Surface and
Wear Inspection .

Heavy rust and/or pitting

Cracks and/or heat spots

Excessive blueing discoloration

Deep or excessive scoring
beyond maximum acceptable
level

2. Make a determination for each brake

rotor if the rotor requires refinishing
based upon the results of the
inspection.

If the brake rotor exhibits any of the
conditions listed previously, it
requires refinishing.

Does the brake rotor require
REFINISHING?

IMPORTANT:

Make the following determination AND
ANSWER the question INDIVIDUALLY for
EACH rotor.

Go to Step 17

Go to Step 22

1. Refinish the brake rotor. Refer to

Brake Rotor Refinishing .

2. Inspect the brake rotor thickness.

2007 Hummer H3

2007 BRAKES Hydraulic Brakes - H3

17

Refer to Brake Rotor Thickness
Measurement .

Were you able to REFINISH the brake
rotor within the minimum requirements?

Go to Step 22

Go to Step 21

18

Is the brake rotor at or below the
DISCARD requirements?

Go to Step 21

Go to Step 19

19

Inspect each of the disc brake rotors for
thickness variation that exceeds the
maximum acceptable level. Refer to Brake
Rotor Thickness Variation
Measurement .Does the brake rotor
exhibit thickness variation that exceeds the
maximum acceptable level?

IMPORTANT:

Perform the following inspection AND
ANSWER the question INDIVIDUALLY for
EACH rotor.

Go to Step 21

Go to Step 20

20

1. Inspect each of the disc brake rotors

for the following surface and wear
conditions:

Refer to Brake Rotor Surface and
Wear Inspection .

Heavy rust and/or pitting

Cracks and/or heat spots

Excessive blueing discoloration

Deep or excessive scoring
beyond maximum acceptable
level

2. Make a determination for each brake

IMPORTANT:

Make the following determination AND
ANSWER the question INDIVIDUALLY for
EACH rotor.

2007 Hummer H3

2007 BRAKES Hydraulic Brakes - H3

rotor if the rotor requires replacement
based upon the results of the
inspection.

If the brake rotor exhibits any of the
conditions listed previously, it
requires replacement.

Does the brake rotor require
REPLACEMENT?

Go to Step 21

Go to Step 22

21

Replace the brake rotor. Refer to Front
Brake Rotor Replacement or Rear
Brake Rotor Replacement .Did you
complete the replacement?

IMPORTANT:

Whenever a brake rotor is replaced, the
assembled lateral runout (LRO) of the rotor
must be measured to ensure optimum
performance of the disc brakes.

Go to Step 24

-

22

Inspect each of the disc brake rotors for
assembled LRO that exceeds the maximum
acceptable level. Refer to Brake Rotor
Assembled Lateral Runout
Measurement .Does the brake rotor
exhibit assembled LRO that exceeds the
maximum acceptable level?

IMPORTANT:

Perform the following inspection AND
ANSWER the question INDIVIDUALLY for
EACH rotor.

Go to Step 23

Go to Step 24

23

Correct the LRO for each brake rotor that
was determined to have LRO exceeding the
maximum acceptable level. Refer to Brake
Rotor Assembled Lateral Runout
Correction .
Did you complete the operation?

Go to Step 24

-

24

Install or connect components that were
removed or disconnected during diagnosis. Disc Brake

System OK

-

2007 Hummer H3

2007 BRAKES Hydraulic Brakes - H3