Installation of Cover Kit for Certain Wheel Tractor-Scrapers{726A} Caterpillar


`
Installation of Cover Kit for Certain Wheel Tractor-Scrapers{726A} [REHS4238]
OPERATOR STATION
COVER GP
1.1. Introduction
2.1. Safety
3.1. Weights
4.1. Parts List
5.1. Specifications for Cables, Chains, and Lifting Devices
6.1. Procedure for Installation of the Cover Kit
Wheel Tractor-Scraper:
621G (S/N: DBB1-UP)
623G (S/N: DBC1-UP)
627G (S/N: DBD1-UP)
631G (S/N: DFA1-UP)
637G (S/N: DFJ1-UP)
657G (S/N: W1B1-UP; W1C1-UP; A4G1-UP)

Introduction

This Special Instruction provides the procedure to install the new cover kit. The new metallic cover kit replaces the existing fiberglass air conditioner cover.

Refer to the necessary parts list.

Prepare the machine for service after installation of the cover kit. Follow the procedure in the Operation and Maintenance Manual for your machine.

Safety

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

Do not attempt to assemble this machine until you read and you understand the assembly instructions.

Improper assembly procedures could result in injury or death.

----------------------

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

Personal injury can result from flame cutting or welding on painted areas.

The effect of gasses from burned paint is a hazard to the person doing the cutting or welding.

Do not flame cut or weld on painted areas.

----------------------

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

Personal injury or death can result from fumes, gases and ultraviolet rays from the weld arc.

Welding can cause fumes, burn skin and produce ultraviolet rays.

Keep your head out of the fumes. Use ventilation, exhaust at the arc, or both, to keep fumes and gases from your breathing area. Wear eye, ear and body protection before working.

Protect yourself and others; read and understand this warning. Fumes and gases can be dangerous to your health. Ultraviolet rays from the weld arc can injure eyes and burn skin. Electric shock can cause death.

Read and understand the manufacturer's instructions and your employer's safety practices. Do not touch live electrical parts.

See "American National Standard Z49.1, Safety in Welding and Cutting" published by the American Welding Society.

American Welding Society
2501 N.W. 7th Street
Miami, Florida 33125

See "OSHA Safety and Health Standards, 29 CFR 1910", available from U.S. Department of Labor.

U.S. Department of Labor
Washington, D.C. 20210
----------------------

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

When a hoist is used to lift any part or assembly, stand clear of the area under the part being raised. Always make sure that the hoist has adequate lifting capacity and the wire cable is not damaged.

Failure to follow this instruction could lead to injury or death.

Approximate weights of the components are shown in the table which follows.

----------------------

Weights

The weights that are listed are approximate.

Table 1
Approximate Weights    
Description     Weight    
343-8893 Cover Kit     18.0 kg (40.0 lb)    
343-8894 Cover Kit    
18.0 kg (40.0 lb)    
343-8895 Cover Kit    
18.0 kg (40.0 lb)    

Parts List

Table 2
Required Parts for Installation of the Cover Kit    
Qty     Part Number     Description    
(1)     343-8893     Cover Kit    
(2)     343-8894     Cover Kit    
(3)     343-8895     Cover Kit    
( 1 ) Part is required on S/N:DBB1-UP, ; S/N:DBC1-UP and ; S/N:DBD1-UP machines only.
( 2 ) Part is required on S/N:DFA1-UP and ; S/N:DFJ1-UP machines only.
( 3 ) Part is required on S/N:W1B1-UP, ; S/N:W1C1-UP and ; S/N:A4G1-UP machines only.

Specifications for Cables, Chains, and Lifting Devices

Use approved cables, chains, and lifting devices in order to lift components. Refer to the manufacturer's weight's in order to determine the application when you select the following items: cable, chain and lifting devices. When you lift a component, the lift angle is critical. Refer to the Illustration that follows in order to see the effect of the lift angle on the working load limit.

Note: The lifting devices that are shown in this publication are not AVSpare parts.




Illustration 1g00629745

Lift angles for lifting slings.

(A) The load capacity is 100% of the working load limit for the sling.

(B) The load capacity is 86% of the working load limit for the sling.

(C) The load capacity is 70% of the working load limit for the sling.

(D) The load capacity is 50% of the working load limit for the sling.

Procedure for Installation of the Cover Kit

Table 3
Required Parts for Installation of the 343-8893, 343-8894, and 343-8895 Cover Kit    
Callout     Part Number     Description     Qty    
1     316-1739     Cover As     (1)    
316-1206 Cover As     (2)    
315-0232 Cover As     (3)    
2     307-2427     Plate As     2    
3     175-7141     Hex Flange Nut     8    
4     316-1213     Tube As     1    
5     339-3211     Mounting Plate     1    
6     5M-3062     Bolt     5    
7     8T-4896     Hard Washer     5    
8     316-4431     Bracket As     (1)    
296-7695 Bracket As     (2) (3)    
9     8T-4137     Bolt     6    
10     8T-4121     Hard Washer     10    
11     8T-4136     Bolt     4    
( 1 ) Part is required on S/N:DBB1-UP, ; S/N:DBC1-UP and ; S/N:DBD1-UP machines only.
( 2 ) Part is required on S/N:DFA1-UP and ; S/N:DFJ1-UP machines only.
( 3 ) Part is required on S/N:W1B1-UP, ; S/N:W1C1-UP and ; S/N:A4G1-UP machines only.



    Illustration 2g01900073

    View of existing cover (A)




    Illustration 3g01900022

    View of cover (A) that is removed

  1. Remove the existing cover (A). Remove the existing brackets and hardware from the machine.

  1. Remove the tube, brackets, or plate assemblies from the new cover assembly (1) .

    Note: Be sure to use the correct cover assembly for your machine. Refer to Table 3 for the correct part number for your machine.




    Illustration 4g01900993

    View of two plates (2) and four hex flange nuts (3) that are installed

  1. Install two plate assemblies (2) to the left-hand side front of the cab with four hex flange nuts (3) .



    Illustration 5g01900759

    View of tube assembly (4) and four hex flange nuts (3) that are installed

  1. Install tube assembly (4) to the right-hand side front of the cab with four hex flange nuts (3) .



    Illustration 6g01900493

    View of mounting plate (5) that is installed with two bolts (6) and two hard washers (7)




    Illustration 7g01900999

    View of two bracket assemblies (8 ) that are installed on mounting plate (5)

  1. Install mounting plate (5) to the two lower bosses on the front of the cab with two bolts (6) and two hard washers (7) .

  1. Install two bracket assemblies (8) to mounting plate (5) with two bolts (6) and two hard washers (7) .

    Note: Bosses on the front of the cab may not be in exact location shown. If modification is required, drill holes where needed in mounting plate (5). Do not remove or weld bosses on the front of cab. The front of the cab is part of the Rollover Protective Structure (ROPS). Welding on the ROPS must be certified.

    Note: Alternate holes on mounting plate (8) may be used. Check the location of the bosses for your machine.

    Note: Be sure to use the correct bracket assemblies for your machine. Refer to Table 3 for the correct part number for your machine.




    Illustration 8g01901134

    View of new cover assembly (1), two bolts (9) and two hard washers (10) that are installed

  1. Install cover assembly (1) with two bolts (9) and two hard washers (10) .



    Illustration 9g01901036

    View of four bolts (9) and four hard washers (10) that are installed

  1. Install four bolts (9) and four hard washers (10) on the left-hand side of cover assembly (1) in order to secure the cover to the cab.



    Illustration 10g01901032

    View of four bolts (11) and four hard washers (10) that are installed

  1. Install four bolts (11) and four hard washers (10) to the two lower mounting locations on cover assembly (1) .



    Illustration 11g01901030

    View of bolt (6) and hard washer (7) that is installed

  1. Install one bolt (6) and one hard washer (7) on the top of cover assembly (1) .

Information System:

2009/04/20 A New Tool For Installation of the Hitch Pin is Now Available for Certain Wheel Tractor-Scrapers {7106}
An Improved Filter Element for the Power Train has Been Released{3067, 5068}
D7E Track-Type Tractor Power Train Track Adjuster and Recoil Cylinder - Remove and Install
D5R Track-Type Tractor MID 039 - CID 3196 - FMI 04
D5R Track-Type Tractor MID 039 - CID 3196 - FMI 03
D5R Track-Type Tractor MID 039 - CID 3195 - FMI 04
C15 and C18 Industrial Engines Catalyst - Remove and Install - Diesel Oxidation Catalyst, Clean Emissions Module
D5R Track-Type Tractor MID 039 - CID 3195 - FMI 03
D5R Track-Type Tractor MID 039 - CID 3188 - FMI 04
D5R Track-Type Tractor MID 039 - CID 3188 - FMI 03
D5R Track-Type Tractor MID 039 - CID 3187 - FMI 04
D5R Track-Type Tractor MID 039 - CID 3187 - FMI 03
Cat Commercial Diesel Engine Fluids Recommendations Biodiesel
Tier II Level Emissions Engine Repower for an 844 Wheel Dozer, 990 Wheel Loader, and a 990 Series II Wheel Loader {1000}
Updating the Access Ladder On D11T Machines{7254}
2009/04/20 New Software Is Now Available for Cold Starting {7610, 7620}
D7E Track-Type Tractor Power Train Track Roller - Remove and Install
3516B and 3516C Engines and 789D Off-Highway Trucks Piston and Rings
Color Change for Cylinder Rod Seals (Wiper, U-Cup and Buffer){5100, 7555, 7562}
C15 and C18 Industrial Engines Combustion Head - Remove and Install
D5R Track-Type Tractor MID 039 - CID 1558 - FMI 09
973D Track-Type Loader Hydraulic System Hydraulic Tank and Filter
Rework of the Blade Assembly{6060}
D5R Track-Type Tractor Connector Locations