- Off-Highway Truck/Tractor
- 770G (S/N: KD21-UP; RMA1-UP; TWA1-UP; RMD1-UP; KDH1-UP; ECM1-UP; ECX1-UP)
- 772G (S/N: KE31-UP; TWB1-UP; RME1-UP; RMH1-UP; LTS1-UP; KEX1-UP; LTX1-UP)
- 777G (S/N: GT71-UP; T5A1-UP; TNM1-UP; RDR1-UP; T4Y1-UP)
- 772G (S/N: KE31-UP; TWB1-UP; RME1-UP; RMH1-UP; LTS1-UP; KEX1-UP; LTX1-UP)
- Quarry Truck
- 773G (S/N: MWH1-UP; JWS1-UP; T5S1-UP; T5T1-UP)
- 775G (S/N: T5F1-UP; RFM1-UP; MJS1-UP; T5W1-UP)
Introduction
This special instruction provides the needed parts and the procedure to upgrade the seat belt.
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, the work method, or your actions are not recommended by Caterpillar, ensure that the tools and your actions are safe for you and for others.
Ensure that the product will not be damaged or the product will be made unsafe by the operation, lubrication, maintenance, or the repair procedures.
Follow all safety warnings. Most accidents that involve product operation, maintenance, or repair are caused by failure to observe safety warnings. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. Personnel should be properly trained to perform maintenance, repair, or operate any machine. Safety precautions and warnings are provided this instruction and on Caterpillar products. These warnings should be observed before performing any procedures. Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. The warnings in this publication and on the product are not all inclusive.
The hazards are identified by the “Safety Alert Symbol” which is followed by a “Signal Word” such as “DANGER”, “WARNING” or “CAUTION”. The “WARNING” Safety Alert Symbol is shown in Illustration 1.
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| Illustration 1 | g00008666 |
This safety alert symbol means:
Pay Attention!
Become Alert!
Your Safety is Involved.
The message that appears under the safety alert symbol explains the hazard.
Operations that may cause product damage are identified by "NOTICE" labels on the product and in this publication.
The information, the specifications, and the illustrations that exist in this guideline are based on information which was available at the time of publication. The specifications, torques, pressures, measurements, adjustments, illustrations, and other items can change at any time. These changes can affect the service that is given to the product. Obtain the complete, most current information before you start any job. Caterpillar dealers can supply the most current information.
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Sudden movement or accidental starting of the machine can cause personal injury or death to persons on or near the machine. To prevent personal injury or death, perform the following: Park the machine on a smooth, level surface. Lower the work tool to the ground and engage the parking brake. Stop the engine and remove the key. Block the wheels and install the steering frame lock. |
References
Reference: Refer to Disassembly and Assembly, RENR2165 for information regarding the disassembly of the seat.
Required Parts
| Required Parts | ||
| Qty | Part Number | Description |
| 1 | Seat Belt Gp | |
| 1 | Spacer | |
| 1 | (3) | Operation and Maintenance Manual |
| (1) | Applies to seat belts that are not equipped with the switch. |
| (2) | Item must be ordered separately from the seat belt group |
| (3) | Refer to Table 3 for the appropriate Operation and Maintenance Manual for your machine |
Removal Procedure
Reference: Refer to Disassembly and Assembly, RENR2165 for information regarding the disassembly and the removal of the seat and the three point seat belt.
Removal Procedure
- Remove and discard the seat belt buckle and mounting hardware.
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Illustration 3 g03775585 - Remove and discard the seat belt retractor and mounting hardware.
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Illustration 4 g03775665 - Move the seat all the way to the rearward position and remove and discard the rear retractor and mounting hardware.
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Illustration 5 g03775724 - Remove the headrest.
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Illustration 6 g03775737 - Remove the headrest guides by turning them ¼ rotation clockwise (90 degrees rotation clockwise) and pulling them out.
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Illustration 7 g03775770 - Remove the belt group and hardware.
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Illustration 8 g03775780 - Remove and retain the seat back and hardware.
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Illustration 9 g03775801 - Remove the bracket and bolster from the rear of the seat.
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| Illustration 2 | g03775572 |
Installation Procedure
| Required Parts | |||
| Item | Qty | Part Number | Description |
| 1 | 1 | Seat Belt Gp | |
| 2 | 1 | Spacer | |
| 3 | 1 | (3) | Operation and Maintenance Manual |
| (1) | Applies to seat belts that are not equipped with the switch. |
| (2) | Item must be ordered separately from the seat belt group |
| (3) | Refer to Table 3for the appropriate Operation and Maintenance Manual for your machine |
- Secure the retractors of the seat belt group (1) to the top of the slide plate with the supplied hardware.
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Illustration 11 g03776157 - Remove and discard the two plugs to assembly the bolts through the seat back.
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Illustration 12 g03776170 (1) 374-5766 Seat Belt Gp - Secure the guides of seat belt group (1) to the rear top of the seat back with the supplied hardware.
Note: The bolts are grade 5 and 7/16-20.
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Illustration 13 g03776183 - Secure the seat cushion to the seat back assembly with the existing hardware.
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Illustration 14 g03776216 - Install the existing head rest guides by installing them in the cushion and turning them ¼ rotation counter-clockwise (90 degrees rotation counter-clockwise).
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Illustration 15 g03776227 (2) 436-8491 Spacer - Install spacer (2) and install the existing headrest assembly.
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Illustration 16 g03776235 View of the LH seat belt base Show/hide table
Illustration 17 g03776247 View of the RH seat belt base - Install the left hand and right-hand seat belt bases of the seat group (1) with the supplied hardware.
Note: The bolts are grade 5 and 7/16-20.
- Replace the existing Operation and Maintenance Manual with one from Table 3. Select the language that corresponds to the language spoken in the location that the truck is operating in.
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Table 3 Operation and Maintenance Manual (OMM) Sales Model Serial Number OMM Media Number 770G - 772G (S/N: KDH; KEX; RMA; RME; KD2; KE3) SEBU8491(1) 770G - 772G (S/N: ECX; LTX; ECM; LTS) SEBU8718(1) 770G - 772G (S/N: TWA; TWB; RMD; RMH) SEBU9006(1) 773G - 775G Tier IV (S/N: JWS; MJS) SEBU8561(1) 773G - 775G Tier II (S/N: MWH; RFM) SEBU8547(1) 773G - 775G OEM (S/N: T5T; T5F; T5S; T5W) SEBU9005(1) 777G Tier IV (S/N: RDR) SEBU8095(1) 777G Tier II (S/N: TNM; GT7) SEBU8227(1) 777G OEM (S/N: T4Y; T5A) SEBU9007(1) Show/hide table(1) The media number that is listed is the English version. Other languages are available.
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| Illustration 10 | g03776088 |
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