Procedure to Install the 572-9451 Hood Support Brace and Mounting Gp on Certain Telehandlers {7263} Caterpillar

Telehandler

TH514D (S/N: MWG1-UP)

TL1055D (S/N: ML51-1225; MNT1-226)

TL1255D (S/N: ML71-1146; MYW1-166)

TL642D (S/N: ML81-840; MLG1-206)

TL943D (S/N: MLD1-203; MLJ1-596)

Reference: Disassembly and Assembly , UENR6276 , "TL642D TL943D TL1055D TL1255D Service Manual"

Reference: Service Magazine , M0092425 , "Improved Engine Hood Assembly Is Now Used on Certain Telehandlers"

Introduction

This Special Instructions covers the installation procedure of the hood support brace and mounting group on the machines listed above.

Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.

Safety Section

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Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility.

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When removing a major component or attachment, ensure that it is properly blocked or secured before removing mounting hardware. An assembly that is disconnected without proper blocking may shift or fall, resulting in serious injury or death of personnel or machine damage.

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Never use fingers to align a cylinder clevis in a mounting clevis. The cylinder could shift, severely injuring or amputating fingers.

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Observe the safe working load limits of all lifting and blocking devices and keep a safe distance from suspended/blocked loads. Personnel may be seriously injured or killed by falling loads.

Required Tools

Required Parts Included with 572-9451 Hood Support Brace and Mounting Gp

Note: Before assembly, apply thread locking compound to all threaded fasteners which do not have internal locking feature.

Machine Preparation

1. Park machine on a firm level surface, level machine, fully retract and lower boom, place transmission in (N) NEUTRAL, engage park brake, and shut the engine OFF.

2. Place a Do Not Operate Tag on both the ignition key switch and steering wheel.

3. Open the engine hood and allow system fluids to cool.

4. Properly disconnect the battery. Refer to appropriate service manual for detailed battery(s) disconnect/connect instructions.

5. Properly support the engine hood in the fully open position.

Installation Procedure

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Illustration 1	g06369055
(A) Hardware (B) Engine hood (C) Hinge

1. Remove and discard the hardware (A) from the bottom of the engine hood hinges (C).

   Note: DO NOT remove any other hardware securing the engine hood (B) to the hinges (C).

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   Illustration 2	g06369057
   (B) Engine hood (D) Double side tape (3) 572-9448 Hood Support Brace Gp

2. With the protective covering on the double-sided tape (D), place the hood support brace group (3) on the engine hood (B) as shown in Illustration 2. Properly align the hood hinge bracket (3) on the engine hood (B) and ensure all the four holes are visible.

3. Mark the outline of the hood support brace group (3) on the engine hood (B).
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   Illustration 3	g06369058
   (B) Engine hood

4. Clean with the acetone (T2) the marked space of hood hinge bracket on the engine hood (B).

5. Lightly sand inside area of hood hinge bracket outline marked on the engine hood (B) with 80 to 120 grit sand paper (T3).

   Note: DO NOT remove more than 0.13 mm (0.005 inch) of material from inside area of bracket outline marked on the engine hood (B).

6. Clean with acetone (T2) and dry mounting space of hood hinge bracket on engine hood (B) to remove all dust and debris.
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   Illustration 4	g06369060
   (B) Engine hood (D) Double side tape (3) 572-9448 Hood Support Brace Gp

7. Carefully remove protective covering from the double-sided tape (D) on the hood support brace group (3).

8. Align the hood support brace group (3) with outline marked in Step 3 and install on the engine hood (B) as shown in Illustration 4.

9. Apply pressure to the hood support brace group (3) to ensure contact between double-sided tape (D) and the engine hood (B).

   Note: The hood support brace group (3) cannot be moved after the double-sided tape (D) is attached to the engine hood (B).

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   Illustration 5	g06369061
   (C) Engine hood hinge (1) 8T-4136 Bolt (2) 116-8517 Washer (3) 572-9448 Hood Support Brace Gp

10. Secure the hood support brace group (3) on engine hood hinges (C) with four bolts (1) and four washers (2).

11. Tighten the bolts (1) to a torque of 50 N·m (37 lb ft).

12. Remove the engine hood support.

13. Ensure the engine hood closes and latches properly.

14. Properly reconnect the battery. Refer to appropriate service manual for detailed battery(s) disconnect/connect instructions.

15. Close and secure the engine hood.

16. Remove Do Not Operate Tag from both the ignition key switch and steering wheel.

17. Return machine to service.