BASIC REPAIR HINT

HINTS ON OPERATIONS

Fig 1: Precaution - Hints On Operations
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JACKING UP AND SUPPORTING VEHICLE
1. Care must be taken when jacking up and supporting the vehicle. Be sure to lift and support the vehicle at the proper locations.
PRECOATED PARTS
1. Precoated parts are bolts and nuts that are coated with a seal lock adhesive at the factory.
2. If a precoated part is retightened, loosened or moved in any way, it must be recoated with the specified adhesive.
3. When reusing a precoated part, clean off the old adhesive and dry the part with compressed air. Then apply new seal lock adhesive appropriate to that part.
  
  Fig 2: Identifying Seal Lock Adhesive On Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Some seal lock agents harden slowly. You may have to wait for the seal lock adhesive to harden.
GASKETS
1. When necessary, use a sealer on gaskets to prevent leaks.
BOLTS, NUTS AND SCREWS
1. Carefully follow all the specifications for tightening torques. Always use a torque wrench.

FUSES

When inspecting a fuse, check that the wire of the fuse is not broken.
When replacing fuses, be sure that the new fuse has the correct amperage rating. Do not exceed the rating or use one with a lower rating.

Fig 3: Identifying Fuses Correct And Incorrect Condition

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FUSES SPECIFICATION

Illustration	Symbol	Part Name	Abbreviation
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002	Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002	FUSE	FUSE
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002	Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002	MEDIUM CURRENT FUSE	M-FUSE
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002	Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002	HIGH CURRENT FUSE	H-FUSE
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002	Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002	FUSIBLE LINK	FL
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002	Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002	CIRCUIT BREAKER	CB

CLIPS
1. The removal and installation methods of typical clips used for vehicle body parts are shown in the table below.
  HINT:
  
  If clips are damaged during work, always replace the damaged clip with a new one.
  
  Fig 4: Identifying Removal And Installation Methods Of Typical Clips
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVAL AND INSTALLATION OF VACUUM HOSES
1. To disconnect a vacuum hose, pull and twist from the end of the hose. Do not pull from the middle of the hose as this may damage the hose.
  
  Fig 5: Identifying Correct And Incorrect Procedure For Vacuum Hose Disconnecting
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. When disconnecting vacuum hoses, use tags to identify where they should be reconnected.
3. After completing any hose related repairs, double check that the vacuum hoses are properly connected. The label under the hood shows the proper layout.
4. When using a vacuum gauge, never force the hose onto a connector that is too large. If a hose has been stretched, air may leak. Use a step-down adapter if necessary.
Fig 6: Identifying Correct Vacuum Hoses According To Tags
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TORQUE WHEN USING TORQUE WRENCH WITH EXTENSION TOOL

Fig 7: Identifying Length Of Extension Tool And Torque Wrench

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Use the formula below to calculate special torque values for situations where SST or an extension tool is combined with the torque wrench.

Formula: T' = L2/(L1 + L2) * T

Fig 8: Identifying Length Of Extension Tool And Torque Wrench

TORQUE VALUES

T'	Reading of torque wrench {Nm (kgfcm, ft.*lbf)}
T	Torque {Nm (kgfcm, ft.*lbf)}
L1	Length of SST or extension tool {cm (in.)}
L2	Length of torque wrench {cm (in.)}

NOTE: If an extension tool or SST is combined with a torque wrench and the wrench is used to tighten to a torque specification in this manual, the actual torque will be excessive and parts will be damaged.

PRECAUTIONS FOR HIGH-VOLTAGE CIRCUIT INSPECTION AND SERVICE
NOTE: The RX400h hybrid system contains a 288V high-voltage system with a strong alkali solution of potassium hydroxide. Be sure to follow the instructions in this manual to handle the system correctly. Failure to do so may result in serious injury or electrocution.
1. Engineer must undergo special training to be able to perform high-voltage system inspection and servicing.
2. All high-voltage wire harness connectors are colored orange. The HV battery and other high-voltage components have "High Voltage" caution labels. Do not carelessly touch these wires and components.
3. Before inspecting or servicing the high-voltage system, be sure to follow safety measures, such as wearing insulated gloves and removing the service plug to prevent electrocution. Carry the removed service plug in your pocket to prevent other technicians from reinstalling it while your are servicing the vehicle.
  
  Fig 9: Removing Service Plug
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Safety Warning

Repair Instruction: Precaution

Use the Manual With the Right Hardware

When to See a Mechanic

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