Field Procedure to Improve the Torque Converter Fill and Check Location on Certain 777G Off-Highway Trucks {3016, 3101, 3105, 7076, 7150, 7153, 7261, 7960} Caterpillar

Off-Highway Truck/Tractor

777G (S/N: GT71-UP; T5A1-UP; TNM1-UP; RDR1-UP; T4Y1-UP)

Introduction

Reference: Operation and Maintenance Manual, SEBU8227, "777G Off-Highway Truck", "Prepare the Machine for Maintenance"

Reference: Operation and Maintenance Manual, SEBU8227, "777G Off-Highway Truck", "Welding on Machines and Engines with Electronic Controls"

Reference: Operation and Maintenance Manual, SEBU9007, "777G Off-Highway Truck Chassis", "Prepare the Machine for Maintenance"

Reference: Operation and Maintenance Manual, SEBU9007, "777G Off-Highway Truck Chassis", "Welding on Machines and Engines with Electronic Controls"

Reference: Operation and Maintenance Manual, SEBU8095, "777G Off-Highway Truck", "Prepare the Machine for Maintenance"

Reference: Operation and Maintenance Manual, SEBU8095, "777G Off-Highway Truck", "Welding on Machines and Engines with Electronic Controls"

Reference: Disassembly and Assembly, RENR8300, "777F and 777G Off-Highway Truck Engine Supplement", "Hood - Remove and Install"

Reference: Disassembly and Assembly, KENR8739, "777G Off-Highway Truck Engine Supplement", "Hood - Remove and Install"

Reference: Special Instruction, REHS1841, "General Welding Procedures"

This special instruction contains the parts information and procedures that are required to update a truck with the new torque converter fill and check location. The work performed in this procedure is on the right side of the machine. The new torque converter fill and check that location is part of the 454-5399 Power Train Oil Lines Gp. The 454-5399 Power Train Oil Lines Gp supersedes the former 309-1346 Power Train Oil Lines Gp. The 454-5399 Power Train Oil Lines Gp is effective in production with the machines S/N:RDR312-UP, ; S/N:TNM819-UP, ; S/N:T5A120-UP, ; S/N:T4Y201-UP, and ; S/N:GT7173-UP.

This special instruction must be applied to a truck when :

1. The former 368-7138 Torque Converter Housing or the former 424-3567 Torque Converter Housing is replaced.

   Or

2. The former 299-0730 Torque Converter and Housing Gp or the former 428-6032 Torque Converter and Housing Gp is replaced.

The former 368-7138 Torque Converter Housing and the former 424-3567 Torque Converter Housing are no longer serviceable. The new 453-9344 Torque Converter Housing replaces both torque converter housings. The new 453-9344 Torque Converter Housing is part of the 454-2330 Torque Converter and Housing Gp.

The former 299-0730 Torque Converter and Housing Gp and the former 428-6032 Torque Converter and Housing Gp are no longer serviceable. The new 454-2330 Torque Converter and Housing Gp replaces both torque converter and housing groups.

The new 454-2330 Torque Converter and Housing Gp is effective in production with the machines S/N:RDR312-UP, ; S/N:TNM819-UP, ; S/N:T5A120-UP, ; S/N:T4Y201-UP, and ; S/N:GT7173-UP.

This special instruction is adaptable to machines S/N:RDR1-311, ; S/N:TNM1-818, ; S/N:T5A1-119, ; S/N:T4Y1-200, and ; S/N:GT71-172.

The 481-6661 Transmission Lines Kit is available for kit to order (KTO). The transmission lines kit contains the parts needed to update a truck with the new torque converter fill and check location. The transmission lines kit includes Items (2) through (52), and item (61).

Items (53) through (60), and items (62) and (63) must be ordered separately if you rework the existing hood assembly on a machine to the new configuration. The items are not required if you order a new hood assembly (71). The items are not part of the 481-6661 Transmission Lines Kit.

Items (64) through (69) are only required if ordering new plate assemblies for machines equipped with a sound suppression group or a mud guard group. The items are not part of the 481-6661 Transmission Lines Kit.

Weld nut (70) must be ordered separately if you rework the existing plate assembly on machines equipped with a sound suppression group or a mud guard group. The weld nut is not part of the 481-6661 Transmission Lines Kit.

Important Safety Information

Do not perform any procedure in this special instruction until you have read this special instruction and you understand this information. Use only proper tools and observe all precautions that pertain to the use of those tools. Failure to follow these procedures can result in personal injury. The following procedures should also be observed.

Work safely. Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs.

A person must be alert to potential hazards. This person should also have the necessary training, skills, and tools to perform these functions properly.

Safety precautions and warnings are provided in this instruction and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons. Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard.

Therefore, the warnings in this publication and the warnings that are on the product are not all inclusive. If the tools, the procedure, and the work method are not recommended by Caterpillar, ensure that the tools, the procedure, and the work method are safe for everyone.

Ensure that the product will not be damaged or the product will be made unsafe by the operation, lubrication, maintenance, or the repair procedures.

Required Parts

Parts to Manufacture

Machines equipped with a 331-7128 Hydraulic Tank Gp do not have a bracket assembly (1). Bracket assembly (1) is part of the 444-6800 Hydraulic Tank Gp. The 444-6800 Hydraulic Tank Gp became effective in production with the machines S/N:RDR312-UP, ; S/N:TNM810-UP, ; S/N:T5A120-UP, ; S/N:T4Y200-UP, and ; S/N:GT7173-UP.

Bracket assembly (1) must be manufactured for the following machines: S/N:RDR1-311, ; S/N:TNM1-809, ; S/N:T5A1-119, ; S/N:T4Y1-199, and ; S/N:GT71-172.

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Illustration 1	g03804279
(A) 15.0 mm (0.59 inch) (B) 30.0 mm (1.18 inch) (C) Diameter of two holes 13.8 mm (0.54 inch) (D) 126.0 mm (4.96 inch) (E) 6.0 mm (0.24 inch) (F) 50.0 mm (1.97 inch) (G) Radii of two corners 10.0 mm (0.39 inch) (H) 62.0 mm (2.44 inch) (J) 32.0 mm (1.26 inch) (K) Development length K to L 201.0 mm (7.91 inch)

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Illustration 2	g03804404

1. Use the information in Illustration 1 and Illustration 2 to manufacture one bracket assembly (1). Manufacture the bracket assembly from steel that has a minimum yield strength of 290 MPa (42061 psi). Weld two weld nuts (2) to bracket (1).

   Note: If a resistance welder is not available, apply a 3 mm (0.12 inch) fillet weld along the length of two opposite sides of each weld nut.

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   Illustration 3	g03810021
   (M) 3.0 mm (0.12 inch) (N) 307.0 mm (12.09 inch) (P) 173.0 mm (6.81 inch) (R) 13.0 mm (0.51 inch) (S) 78.0 mm (3.07 inch) (T) 156.0 mm (6.14 inch) (U) Four radii 10 mm (0.39 inch) (V) 134.0 mm (5.28 inch) (W) Diameter of four holes 7.0 mm (0.28 inch) (X) 17.8 mm (0.70 inch) (Y) 72.4 mm (2.85 inch) (Z) 24.0 mm (0.95 inch) (AA) 108.0 mm (4.25 inch)

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   Illustration 4	g03810037
   (AB) 39.0 mm (1.54 inch) (AC) 36.0 mm (1.42 inch) (AD) 16.0 mm (0.63 inch) (AE) 10.0 mm (0.39 inch) (AF) 27.0 mm (1.06 inch) (AG) 2.0 mm (0.08 inch) (AH) 10.0 mm (0.39 inch) (AJ) Radius 4.0 mm (0.16 inch) (AK) 16.0 mm (0.63 inch) (AL) 9.5 mm (0.37 inch) (AM) Radius 10.0 mm (0.39 inch)

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   Illustration 5	g03810301
   (AN) 285.0 mm (11.22 inch) (AP) 77.0 mm (3.03 inch) (56) Weld nuts (57) Cover assembly

2. Cover assembly (57) can be manufactured or ordered. Use the information in Illustration 3, Illustration 4, and Illustration 5 to manufacture the cover assembly. Manufacture the cover assembly from steel that has a minimum yield strength of 170 MPa (24657 psi).

   Note: If a resistance welder is not available, apply a 3 mm (0.12 inch) fillet weld along the length of two opposite sides of each weld nut.

Prepare the Machine for Maintenance

For the correct procedure for your machine, refer to “Prepare the Machine for Maintenance” in the above listed Operation and Maintenance Manual.

Rework Procedure

Remove the Hood Assembly

1. Remove the hood assembly. For the correct procedure for your machine, refer to “Hood - Remove and Install” in the above listed Disassembly and Assembly Manuals.

2. Remove the handrail from the hood. Save all the parts.

Rework for the New Torque Converter

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Illustration 6	g03804434
(A) 165.7 mm (6.52 inch) (B) 21.25 mm (0.837 inch)

1. Use the dimensions in Illustration 6 to weld boss (3) to the back side of the right-hand front suspension cylinder mounting surface. Also see Illustration 16.
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   Illustration 7	g06183312
   View of the before and after 341-8310 Tube As geometry (AA) Earlier version (BB) Current version

2. Identify that the 341-8310 Tube As is the latest version of that tube (BB). If the tube geometry is different, the 341-8310 Tube As will interfere with Tube (5) in following Step 3. Replace with a new 341-8310 Tube As prior to the installation of Tube (5) if there is interference.
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   Illustration 8	g03804933

3. Go to the right side of the torque converter. Assemble one rectangular seal (4) to tube assembly (5). Use four bolts (6) and four washers (7) to assemble the tube assembly to the torque converter. Torque the bolts to 100 ± 20 N·m (74 ± 15 lb ft).
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   Illustration 9	g03804941

4. Assemble hose (8) to tube assembly (5) with two clamps (9). Leave clamps loose to tighten later. Torque the clamps to 7.5 ± 1.0 N·m (66 ± 9 lb in) after tube (13) is assembled as shown in Illustration 15 and Illustration 16.
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   Illustration 10	g03805018

5. Go to theinside theright frame near the rear engine mount. Remove existing bolts (A) and washers (B) that assemble the fuel line to frame. Leave two clips (C) in position. Discard the bolts and washers.
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   Illustration 11	g03805042

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   Illustration 12	g03805049
   Looking up at the two bracket assemblies

6. Use two bolts (10) and two washers (11) to assemble the two bracket assemblies (12) over two clips (C) from the previous step. Torque the bolts to 55 ± 10 N·m (41 ± 7 lb ft).

   Note: Skip Step 7 if the machine is not equipped with a service center arrangement.

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   Illustration 13	g03805103

7. Machines equipped with the 360-2633 Service Center Ar (If Equipped), 373-4027 Service Center Ar (If Equipped), 340-9988 Service Center Ar (If Equipped), or the 358-9141 Service Center Ar (If Equipped) must reroute the 360-5812 Hose and Tube As (D) and remove the existing hardware at location (E) as shown in Illustration 13.
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   Illustration 14	g03805156

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   Illustration 15	g03805181

   Note: If the machine is equipped with the 360-5812 Hose and Tube As (D), position the hose and tube assembly above tube (13). Use one mount (14), and two cable straps (15) to secure the two parts.

8. Assemble tube (13) to hose (8). Assemble two grommets (16), two clips (17), and two clips (18) to tube (13) near bracket assemblies (12). Align the holes in the clips with the holes in the bracket assemblies. Insert two bolts (19) through two hard washers (20). Use the bolts to assemble the clips to the bracket assemblies. Torque the bolts to 55 ± 10 N·m (41 ± 7 lb ft).
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   Illustration 16	g03805459

9. Go to boss (3) that was welded to the machine in Step 1. Use one bolt (19) and one hard washer (20) to assemble plate assembly (21) to boss (3). Torque the bolt to 55 ± 10 N·m (41 ± 7 lb ft).

10. Assemble one grommet (16) onto tube (13) near plate assembly (21), Assemble one clip (17), and one clip (18) onto grommet (16). Align the hole in the clips with the hole in plate assembly (21). Use one bolt (19), and one hard washer (20) to secure the clips to the plate assembly. Torque the bolt to 55 ± 10 N·m (41 ± 7 lb ft).
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    Illustration 17	g03805608
    (1) Bracket assembly (C) 452.50 mm (17.815 inch) from the top surface of the mounting block (D) 89.40 mm (3.520 inch) from the center line of the threaded hole in the mounting block

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    NOTICE
    Machines equipped with a 331-7128 Hydraulic Tank Gp do not contain bracket assembly (1). Bracket assembly (1) is part of the 444-6800 Hydraulic Tank Gp. The 444-6800 Hydraulic Tank Gp became effective in production with the machines S/N:RDR312-UP, ; S/N:TNM810-UP, ; S/N:T5A120-UP, ; S/N:T4Y200-UP, and ; S/N:GT7173-UP. Bracket assembly (1) was manufactured earlier. Bracket assembly (1) must be assembled to the following machines: S/N:RDR1-311, ; S/N:TNM1-809, ; S/N:T5A1-119, ; S/N:T4Y1-199, and ; S/N:GT71-172. If your machine contains bracket assembly (1), proceed to Step 15.

11. Use the information in Illustration 17 to position bracket assembly (1) on the hydraulic tank group. Mark the area for the bracket assembly. Remove the bracket assembly from the hydraulic tank group. For information on working on the hydraulic tank, refer to Special Instruction, REHS1841.
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    Applying heat to a tank which has held flammable liquids, even when empty, can result in residual flammable liquid or vapor igniting with explosive force. Personal injury or death can result from an explosion. Do not weld or flame cut on any tank that has held flammable liquid without taking the proper precautions such as filling the tank with either inert gas or water.

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    NOTICE
    Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products. Dispose of all fluids according to local regulations and mandates.

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    NOTICE
    The fuel tank and/or hydraulic tank must be drained of all fuel and/or oil so that there is no residual fuel and/or oil left in the tank.

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    NOTICE
    Do not put water in a hydraulic tank. Water can damage the valves in the hydraulic system.

12. Prepare the hydraulic tank group for welding. For the proper procedure, refer to Special Instruction, REHS1841.
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    Illustration 18	g03805712

13. Position bracket assembly (1) on the hydraulic tank group. Use the information in Illustration 18 to weld the bracket assembly to the hydraulic tank group.
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    Illustration 19	g03805732

14. The position of the three clips (E) for routing the chassis wiring harness on the 331-7128 Hydraulic Tank Gp are shown in Illustration 19. Orient the clips as needed to accommodate bracket assembly (1).
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    Illustration 20	g03805739

15. Use two bolts (19) and two hard washers (20) to assemble bracket assembly (22) to bracket assembly (1). Torque the bolts to 55 ± 10 N·m (41 ± 7 lb ft).
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    Illustration 21	g03805778

16. Use two bolts (24) and two hard washers (20) to assemble cover assembly (23) to bracket assembly (22). Torque the bolts to 55 ± 10 N·m (41 ± 7 lb ft).
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    Illustration 22	g03806168

17. Assemble tube assembly (25) to bracket assembly (22) with two half clips (26), two bolts (27), and two washers (11). Torque the bolts to 55 ± 10 N·m (41 ± 7 lb ft).

    Note: Assemble tube assembly (25) so that the tube assembly length above the half clips (26) is approximately 50 mm (2.0 inch). The tube assembly (25) must also extend down through the opening in cover assembly (23).

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    Illustration 23	g03806176

18. Assemble one end of hose (28) to tube assembly (25) with one clamp (9). Torque the clamp to 7.5 ± 1.0 N·m (66 ± 9 lb in).
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    Illustration 24	g03806191

19. Assemble the other end of hose (28) to tube assembly (13) with one clamp (9). Torque the clamp to 7.5 ± 1.0 N·m (66 ± 9 lb in).
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    Illustration 25	g03806221

20. Use one rivet (30) to assemble cap assembly (29) to tube assembly (25).
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    Illustration 26	g03806254

21. Assemble one O-Ring seal (31) onto connector (32). Assemble connector (32) to the torque converter. Torque the connector to 350 ± 53 N·m (258 ± 39 lb ft).

22. Assemble one O-Ring seal (33) onto connector (32). Assemble tube assembly (34) to connector (32). Torque the swivel nut on the tube assembly to 220 ± 33 N·m (162 ± 24 lb ft).
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    Illustration 27	g03806342
    View of area (A)

23. Assemble clip (35) and clip (36) to tube assembly (34) near hose assembly (C). Install grommet (37) to hose assembly (C) near the two clips on tube assembly (34). Assemble clip (38) and clip (39) to grommet (37). Align the holes in the clips. Assemble one hard washer (20) onto one bolt (27). Insert the bolt through the holes in the clips. Assemble one hard washer (20) and one nut (40) onto bolt (27). Torque the nut to 55 ± 10 N·m (41 ± 7 lb ft).
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    Illustration 28	g03806396

24. Assemble one clip (42) onto oil gauge (41) as shown. Use one bolt (24) and one hard washer (20) to secure oil gauge (41) to bracket assembly (22). Torque the bolt to 55 ± 10 N·m (41 ± 7 lb ft).
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    Illustration 29	g03806938

25. Go to the top of tube assembly (34) that is inside the right frame near the rear engine mount. Assemble one O-Ring seal (43), and one O-Ring seal (44) to O-Ring reducer (45). Assemble O-Ring reducer (45) onto nut (46). Assemble nut (46) onto tube assembly (34). Torque the nut to 140 ± 21 N·m (103 ± 15 lb ft)

26. Assemble oil gauge (41) onto O-Ring reducer (45). Torque the nut on the oil gauge to 65 ± 10 N·m (48 ± 7 lb ft).
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    Illustration 30	g03807137

27. Go to the top of hose (28) behind the steering hydraulic tank (F), and below the bracket assembly (22) and cover assembly (23). Assemble one clip (47) to hose (28). Assemble one clip (48) to oil gauge (41). Assemble clip (49) to tube assembly (G). Align the holes in the clips. Assemble one bolt (19) through one hard washer (20). Insert the bolt through the holes in the clips. Assemble one hard washer (20) and one nut (40) onto bolt (19). Torque the bolt to 55 ± 10 N·m (41 ± 7 lb ft).
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    Illustration 31	g03807277

28. Assemble one clip (47) onto hose (28) as shown. Assemble one clip (50) onto oil gauge (41). Align the holes in the clips. Insert one bolt (19) through one hard washer (20). Insert the bolt through the holes in the clips. Assemble one hard washer (20) and one nut (40) onto bolt (19). Torque the nut to 55 ± 10 N·m (41 ± 7 lb ft).
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    Illustration 32	g06025890

29. Follow oil gauge (41) down the right-hand inside of the frame toward the engine mount area. Remove and discard existing bolt (H) and existing washer (J) that secures the existing clipping to the frame.
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    Illustration 33	g06025906

30. Secure the oil gauge (41) and the existing clipping to the frame by using taperlock stud (51), washer (52), clip (50), hard washer (20), and nut (40). Tighten nut (40) to a torque of 55 ± 10 N·m (41 ± 7 lb ft).

Rework for the Hood Assembly

1. The hood assembly was removed in "Remove the Hood Assembly". Retrieve the hood assembly. Make the required changes to the hood assembly.

   Note: If you install a new hood assembly, skip Step 2 through Step 15 and Step 17 through Step 21.

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   Illustration 34	g03808858
   A view of the underside of the hood assembly

2. Using the proper lifting device, turn over the hood assembly. The approximate weight is 317 kg (700 lb).

3. Remove three bolts and washers (A) from insulation (B). Save the bolt and washers. Remove the insulation from the hood assembly. Save the insulation.
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   Illustration 35	g03808936
   (C) Diameter of two holes 50.0 mm (1.97 inch) (D) 85.5 mm (3.37 inch) (E) Insulation material to remove (F) 203.5 mm (8.01 inch) (G) Diameter of two holes 20.0 mm (0.79 inch) (H) 50.0 mm (1.97 inch) (J) 260.0 mm (10.24 inch) (K) 223.0 mm (8.78 inch) (L) 230.0 mm (9.06 inch) (M) 663.0 mm (26.10 inch) (N) 173.0 mm (6.81 inch) (P) 200.0 mm (7.87 inch)

4. Use the information in Illustration 35 to update the configuration of the insulation.
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   Illustration 36	g03809397

5. Place insulation (B) in position on the hood assembly. Use the insulation to mark the hood assembly for the location of two dowels (53). Use two holes (G) to mark the hood assembly.

6. Remove insulation (B) from the hood assembly. Prepare the two areas for welding. For the proper procedure, refer to the above listed special instruction.
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   Illustration 37	g03809416

7. Use the information in Illustration 37 to weld two dowels (53) to the hood assembly. Paint the two areas where the dowels were added to the hood assembly.

8. Position insulation (B) onto the hood assembly.
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   Illustration 38	g03809471

9. Use two bolts and washers (A) that were saved in Step 3 to install insulation (B) to the hood assembly. Use two bolts (54), and two hard washers (55) to fasten the center of the insulation to the hood assembly. Torque bolts (54) to 12 ± 3 N·m (106 ± 27 lb in).

10. Use an appropriate lifting device to turn over the hood assembly. The approximate weight is 317 kg (700 lb).
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    Illustration 39	g03809527
    (R) 110.0 mm (4.33 inch) (S) 27.0 mm (1.06 inch)

11. Use the information in Illustration 39 to locate the first two sides of the torque converter fill and check access opening on hood assembly.
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    Illustration 40	g03809586
    View of the right side of the hood assembly near the steering hydraulic tank (T) 150.0 mm (5.91 inch) (U) Radius 134.0 mm (5.28 inch) (V) 143.5 mm (5.65 inch) (W) Four radii 10.0 mm (0.39 inch) (X) See detail (X)

12. Use the information in Illustration 40 to cut the opening in the hood assembly.
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    Illustration 41	g03809616
    Detail (X) ( Y) 108.0 mm (4.25 inch) (Z) 90.2 mm (3.55 inch) (AA) 17.8 mm (0.70 inch) (AB) 21.0 mm (0.83 inch) (AC) Diameter of four holes 7.0 mm (0.28 inch) (AD) 15.8 mm (0.62 inch)

13. Locate and drill four mounting holes in hood assembly for cover assembly (57) as shown in Illustration 41.
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    Illustration 42	g03809906

14. Resistance weld four weld nuts (56) to the under side of the hood assembly at the four hole locations as shown in Illustration 42.

    Note: If a resistance welder is not available, apply a 3 mm (0.12 inch) fillet weld along the length of two opposite sides of each weld nut.

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    Illustration 43	g03810393

15. Use eight screws (58), sheet (59), and two hinge assemblies (60) to assemble cover assembly (57) to the hood assembly. Torque the screws to 1.70 ± 0.25 N·m (15 ± 2 lb in).

16. Install film (61) to cover assembly (57).
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    Illustration 44	g03810455

17. Use cover assembly (57) to locate the position of lug (62). Mark the position of the lug. Remove the lug.

18. Prepare the area for welding. For the correct procedure, refer to Special Instruction, REHS1841.

19. Position lug (62) on the hood assembly. Use the information in Illustration 44 to weld the lug to the hood assembly.

20. Paint the area.
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    Illustration 45	g03810478

21. Install padlock group (63) to cover assembly (57).

Install the Hood Assembly

1. The handrail was removed in Step (2) in "Remove the Hood Assembly". Retrieve the parts.

2. Install the handrail to the hood assembly.

3. Install the hood assembly. For the correct procedure for your machine, refer to “Hood - Remove and Install” in the above listed Disassembly and Assembly Manuals.

Rework for Machines with the Sound Suppression Group (If Equipped) or the Mud Guard Group (If Equipped)

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Illustration 46	g03810493

1. If you replace the plate assemblies, refer to Illustration 46 for the position of the new plate assemblies. Use the existing mounting hardware to assemble the new plate assemblies.

   Note: If you install new plate assemblies, skip Steps 2 through Step 6.

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   Illustration 47	g03810514
   (A) Remove material from the plate assemblies to accept the fill tube (B) Add a new mounting hole to the plate assemblies (C) Remove material from the adjacent plate to accept the cutout

2. Machines equipped with a 336-0263 Sound Suppression Gp, or a 373-1096 Mud Guard Gp must rework the existing plate assemblies in the areas shown in Illustration 47. The 336-0263 Sound Suppression Gp is part of the 342-6175 Sound Suppression Ar. The 373-1096 Mud Guard Gp is part of the 373-1097 Mud Guard Ar.
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   Illustration 48	g03810943
   (D) 42.0 mm (1.65 inch) (E) Diameter of the new hole 16.75 mm (0.660 inch) (F) Area to remove from both plate assemblies (G) 115.0 mm (4.53 inch) (H) 229.0 mm (9.02 inch) (J) 160.0 mm (6.30 inch) (K) Radii of the four corners 15.0 mm (0.59 inch)

3. To rework the existing 347-5483 Plate As and the 371-8278 Plate As, refer to Illustration 48. Resistance weld (spot weld) weld nut (70) to hole (D).

   Note: The insulation on the 347-5483 Plate As must be reworked to accept the cutout.

4. Install the reworked 347-5483 Plate As or the 371-8278 Plate As on the machine.
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   Illustration 49	g03811183
   (L) 215.8 mm (8.50 inch) (M) Add slot 13.5 X 24 mm (0.53 X 0.95 inch) (P) Area to remove from both plate assemblies

5. To rework the existing 347-4860 Plate As and the 371-8281 Plate As, refer to Illustration 49.

6. Install the reworked 347-4860 Plate As or the 371-8281 Plate As on the machine.

7. Prepare to return the machine to service.