Medium and Light - Sullivan Tire Company

Technical Bulletins Load/Inflation General Technical Light Truck Medium Truck
General Technical Information 2010 Firestone Medium and Light Truck Tire Data Book
Adjustment Treadwear Chart
Remaining
Tread
Depth
34
Original Tread Depth
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
Percentage of Usable Tread Wear Charges to the Customer
2/32 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 2/32
3/32 86 88 89 90 91 92 92 93 93 94 94 94 95 95 95 95 96 96 96 96 96 96 97 97 97 97 3/32
4/32 71 75 78 80 82 83 85 86 87 88 88 89 89 90 90 91 91 92 92 92 93 93 93 93 94 94 4/32
5/32 57 63 67 70 73 75 77 79 80 81 82 83 84 85 86 86 87 88 88 88 89 89 90 90 90 91 5/32
6/32 43 50 58 60 64 67 69 71 73 75 76 78 79 80 81 82 83 83 84 85 85 86 86 87 87 88 6/32
7/32 29 38 44 50 55 58 62 64 67 69 71 72 73 75 76 77 78 79 80 81 81 82 83 83 84 84 7/32
8/32 14 25 33 40 45 50 54 57 60 63 65 67 68 70 71 73 74 75 76 77 78 79 79 80 81 81 8/32
9/32 0 13 22 30 36 42 46 50 53 56 59 61 63 65 67 68 70 71 72 73 74 75 76 77 77 78 9/32
10/32 0 11 20 27 33 38 43 47 50 53 56 58 60 62 64 65 67 68 69 70 71 72 73 74 75 10/32
11/32 0 10 18 25 31 36 40 44 47 50 53 55 57 59 61 63 64 65 67 68 69 70 71 72 11/32
12/32 0 9 17 23 25 33 38 41 44 47 50 52 55 57 58 60 62 63 64 66 67 68 69 12/32
13/32 0 8 15 21 29 31 35 39 42 45 48 50 52 54 56 58 59 61 62 63 65 66 13/32
14/32 0 8 14 20 25 29 33 37 40 43 45 48 50 52 54 56 57 59 60 61 63 14/32
15/32 0 7 13 19 24 28 32 35 38 41 43 46 48 50 52 54 55 57 58 59 15/32
16/32 0 7 13 17 22 26 30 33 36 39 42 44 46 48 50 52 53 55 56 16/32
17/32 0 6 12 18 21 25 29 32 35 38 40 42 44 46 48 50 52 53 17/32
18/32 0 6 11 16 20 24 27 30 33 36 38 41 43 45 47 48 50 18/32
Remaining
Tread
Depth
19/32 0 6 11 15 19 23 26 29 32 35 37 39 41 43 45 47 19/32
20/32
21/32
GAUGE
REMAINING
TREAD
DESIGN DEPTH
IN THESE
GROOVES
0 5
0
10
5
14
10
18
14
22
17
25
21
28
24
31
27
33
30
36
32
38
34
40
37
42
39
44
41
20/32
21/32
22/32 0 5 9 13 17 20 23 26 29 31 33 35 38 22/32
23/32
24/32
CONVENTIONAL
DESIGN
CLEATED TREAD
DESIGN
0 5
0
9
4
13
8
16
12
19
15
22
19
25
21
28
24
30
27
32
29
34
31
23/32
24/32
25/32
26/32
HOW TO CALCULATE
ADJUSTMENT PRICES
1. Find the original tread depth
WITH A TIRE-MARKING
CRAYON, MARK ON THE
ADJUSTED TIRE:
0 4
0
8
4
12
8
15
11
18
14
21
17
23
20
26
23
28
25
25/32
26/32
27/32
28/32
29/32
in the price/data book.
2. Using 32nds gauge, measure
the remaining tread at three
points in the two center
grooves and average the
1. Location of the service
condition (circled).
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3. Retailer Name
0 4
0
7
4
0
11
7
4
14
10
7
17
13
10
19
16
13
22
19
16
27/32
28/32
29/32
30/32
31/32
three measurements.
3. Where the averaged tread
depth remaining line meets
4. Rub across the DOT
serial number so it can
be easily read.
0 3
0
7
3
10
6
13
9
30/32
31/32
32/32
33/32
the appropriate original tread
depth column, the percentage
of tread worn off the tire will
be found.
Make sure the customer
COMPLETES and SIGNS the
CUSTOMER section of the
0 3
0
6
3
32/32
33/32
34/32 4. Use this percentage to
calculate the customer’s
replacement price.
Adjustment Form!
0 34/32