Bolt Replacement Guidelines for Certain C175 20 cylinder Off-Highway Truck Engine Air System Support Components {0635, 1052} Caterpillar


Bolt Replacement Guidelines for Certain C175 20 cylinder Off-Highway Truck Engine Air System Support Components {0635, 1052}

Usage:

797F LAJ
Off-Highway Truck/Tractor
797F (S/N: LAJ1-UP; LTZ1-UP)

Introduction

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

This Special Instruction covers the locations of bolts used for the support of the air system components for the C175 20 cylinder Off-Highway Truck Engine. These bolts must be replaced if the joint is taken apart for repair.

Safety Section

------ WARNING! ------

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.


------ WARNING! ------

Climbing equipment may be required to access this service point. Refer to the Operation and Maintenance Manual, "Mounting and Dismounting" topic for safety information.


------ WARNING! ------

Before servicing/performing maintenance on the machine, electrical power must be physically disconnected; battery plugs must be disconnected from the batteries, or the trailing cable must be unplugged, and warning tags and padlocks shall be applied by a certified electrician. Certified electricians shall perform or direct any electrical work, including any energized testing, repair work in controllers, motors, or other approved compartments, and shall insure that all compartments are properly closed and inspected prior to re-energization. All applicable lock out and tag out procedures must be followed.


------ WARNING! ------

Do not operate the machine if any guards or covers are missing or inadequately secured. Personnel could be seriously injured or machine damage may occur.


Replacement Location Views

Below are the different views of the supports used for the air systems and the hardware that needs to be replaced. If the bolts must be reused, clean and lubricate the bolts before reinstallation.

4 by 2 High Altitude Turbocharger Arrangement

The images that are below show the locations and part numbers for the bolts for the 4 by 2 Turbocharger C175 Engine arrangement.

Note: Not all bolts or washers may be visible from the views that are shown below. The quantities will be listed in the caption after the part numbers.

Front Top View



Illustration 1g06398377
(1) 360-5871 Bolt Qty - 8
(2) 369-4011 Spacer Qty - 8
(3) 289-4083 Bolt Qty - 12
(4) 198-4767 Hard Washer Qty - 12

Front Bottom View



Illustration 2g06398387
(1) 8T-0281 Bolt Qty - 8
(2) 178-6450 Spacer Qty - 8
(3) 6V-5684 Bolt Qty - 6
(4) 198-4767 Hard Washer Qty - 6

Front Side View



Illustration 3g06398391
(1) 359-5228 High Temperature Bolt Qty - 4
(2) 369-4012 Spacer Qty - 4
(3) 369-2483 High Temperature Bolt Qty - 4
(4) 363-2030 Spacer Qty - 4

Front Back View



Illustration 4g06398414
(1) 360-5871 Bolt Qty - 6
(2) 369-4011 Spacer Qty - 6
(3) 359-5228 High Temperature Bolt Qty - 6
(4) 369-4013 Spacer Qty - 6

Middle Support View



Illustration 5g06398419
(1) 289-4083 Bolt Qty - 2
(2) 198-4767 Hard Washer Qty - 2
(3) 369-2483 High Temperature Bolt Qty - 4
(4) 363-2030 Spacer Qty - 10
(5) 527-6927 Bolt Qty - 6

Rear Support View



Illustration 6g06398426
(1) 348-3426 Bolt Qty - 2
(2) 198-4767 Hard Washer Qty - 2
(3) 369-2483 High Temperature Bolt Qty - 6
(4) 363-2030 Spacer Qty - 6

4 by 4 High Altitude and Tier 4 Turbocharger Arrangement

The images that are below show the locations and part numbers for the bolts for the 4 by 4 Turbocharger C175 Engine arrangement.

Note: The 479-0458 Turbocharger Mounting Gp will be the same for both ends of the engine for this arrangement. The quantities for this arrangement are both ends combined.

479-0458 Turbocharger Mounting Gp



Illustration 7g06398439
(1) 6V-7673 Bolt Qty - 20
(2) 198-4767 Hard Washer Qty - 20
(3) 360-5871 Bolt Qty - 8
(4) 363-2030 Spacer Qty - 8

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