Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 28 2041i r040001
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28-2
TIRE & WHEEL - WHEEL AND TIRE SYSTEM
2803K-01
REPAIR
1. INTRODUCTION
(a) This section introduces the procedures to determine whether the run-flat tire is repairable or not. Re-
pair must be performed by following the appropriate procedures.
If a flat tire occurs, it is possible to drive a maximum of 160 km (100 mile) at a speed below 90 km/h
(55 mph) due to the reinforced sidewalls. However, if the customer continues to drive with low inflation
pressure (less than about 150 kPa (1.5 kgf/cm2, 22 psi) and Tire Pressure Warning Lamp On, the inside
of the sidewall will gradually deteriorate and the run-flat performance may be reduced. Therefore, the
tire(s) may require replacement.
However, there are some cases where it is possible to repair a run-flat tire using the same repair meth-
od as for normal tires. Please use the following flowchart to determine if a run-flat tire is repairable.
NOTICE:
S Follow the repair procedures of RMA (Rubber Manufacturers Association) if a repair is per-
formed.
S The inflation pressure detected by this system during initialization and detection, may vary de-
pending on the respective driving conditions, surroundings and tires.
S The above is the standard value when driving on a paved road in dry condition.
2. REPAIR PROCEDURE (CUSTOMER INTERVIEW)
(a) The tire pressure warning system can help determine the history of the tire's use. The driving condi-
tions the tire was subjected to while the tire pressure warning lamp was illuminated, should be obtained
from the customer. The following questions may be pertinent in gathering the required information.
(1) Was the vehicle driven at a speed over 90 km/h (55 mph) with the tire pressure warning lamp
On (yes or no)?
(2) Was the vehicle driven over 160 km (100 mile) with the tire pressure warning lamp On (yes or
no)?
A "Yes" response to either of the above will greatly reduce the chance of tire repairability.
3. TECHNICIAN TIRE INSPECTION
(a) After the customer interview, it will be necessary to conduct a thorough inspection of the tire removed
from the wheel. It is difficult to identify a tire with low pressure visually; therefore, check the pressure
of each tire on the vehicle to determine the tire(s) causing the low-pressure warning. If the tire is found
to be repairable, follow the repair procedures of RMA (Rubber Manufacturers Association).
CAUTION:
The deflated tire may be extremely hot and causing injury, so allow the tire to cool prior to handling.
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2629
28-3
TIRE & WHEEL - WHEEL AND TIRE SYSTEM
4. TIRE PRESSURE INSPECTION
The tire pressure check
Is the tire pressure below Is the tire pressure more than Is the tire pressure over
100 kPa (1 kgf/cm2, 14.5 psi) 100 kPa (1 kgf/cm2, 14.5 psi) 140 kPa (1.4 kgf/cm2, 21 psi)
and less than
140 kPa (1.4 kgf/cm2, 21 psi)
Question to the customer:
Did you increase the tire pressure
before coming to the dealership?
NOTICE:
Yes If the customer does not
remember clearly, pro-
ceed to the "External Tire
Inspection".
REPLACE THE TIRE Proceed to the "External Tire No
Inspection" Adjust the tire pressure
5. EXTERNAL TIRE INSPECTION
Are there abrasions on the Yes
outer sidewall?
No
Is there any damage in the Yes
bead area?
No
Proceed to the "Internal Tire REPLACE THE TIRE
Inspection"
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2630
28-4
TIRE & WHEEL - WHEEL AND TIRE SYSTEM
6. INTERNAL TIRE INSPECTION
Yes
Are there any rubber dust or rubber crumbs?
No
Yes
Is the inner liner loose or detached?
No
Yes
Is there any damage in the bead area?
No
Are there any wrinkles or breakdown from under Yes
inflation?
No
Refer to see the repair limit chart. No
Yes REPLACE THE TIRE
Are the guidlines met?
Yes
Repair the tire per RMA Procedures.
RFT Repair Limit Chart
Tread Area
Tires that suffer a penetration in the tread area
Repairable
and meet the above inspection criteria may be
repaired if the guidlines listed below are also met.
Sidewall Area
Puncture Condition - Tread Area Only Not Repairable
Maximum
Maximum Maximum Distance
Diameter Number Between
Holes
6.4 mm 406 mm
2
(0.25 in.) (16 in.)
Tire Contour
G27609
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 2631
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