Installation of the Inclined Ladder for the 950H, 962H, 966H, 972H Wheel Loaders{7254, 7256} Caterpillar


Installation of the Inclined Ladder for the 950H, 962H, 966H, 972H Wheel Loaders{7254, 7256}

Usage:

966H A6G
Wheel Loader:
950H (S/N: N1A1-UP)
962H (S/N: N4A1-UP)
966H (S/N: A6G1-UP)
972H (S/N: A7G1-UP)

Introduction

This publication contains the information for installation of the inclined ladder. A complete listing of the parts that are contained in this kit are listed in the Parts Manual, SEBC1492. This supplemental product support literature should be used with the appropriate Service Manual and the appropriate Parts Manual that is available for this standard machine.

Do not perform any procedure and do not order parts that are outlined in this publication until you understand the information that is contained in this document.

Machine Preparation

    Note: The following preparation must be done before starting this procedure.

  1. Connect the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".


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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.

Dispose of all fluids according to local regulations and mandates.


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

Personal injury can result from hydraulic oil pressure and hot oil.

Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.

Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.

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

Installation of the 291-3707 Ladder Ar for the 950H and the 962H Wheel Loaders

Removal of Standard Ladder Gp and Left Hand Fender




    Illustration 1g01349035

    Standard ladder group

    (A) Washer

    (B) Bolt

    (C) Ladder assembly

    (D) Front handrail

    (E) Rear handrail

    (F) Left hand fender assembly

  1. Remove four bolts (B) and four washers (A). Remove ladder assembly (C) .

  1. Remove handrails (D) and (E). Retain handrails and hardware for later use.

  1. Remove fender assembly (F) .

Install the New Fender Assembly




    Illustration 2g01351301

    New left fender

  1. Use the original hardware and install the 278-9579 Fender assembly (24) .

  1. Reinstall the left hand rear handrail (E) .

Install the Tool Box Assembly




    Illustration 3g01350087

    Tool box assembly

  1. Use the following hardware and install the two 278-9587 Console Assemblies (5) onto the frame:

  1. Install the 3E-6602 Seal (11) around the inside edge of the 272-2785 Door (3) .

  1. Use the following hardware and install the 272-2785 Door (3) onto the 278-9582 Tool Box Assembly (4) :

  1. Use the included hardware and install the 294-2382 Latch As (1) and the 222-5151 Pawl (2) onto the 272-2785 Door (3) .

  1. Use the following hardware and install the 278-9582 Tool Box Assembly (4) onto the two 278-9587 Console Assemblies (5) .

Install the Ladder Group




    Illustration 4g01351996

    View of ladder assembly

  1. Use the following hardware and install the 306-2277 Ladder As (33) onto the 278-9594 Bracket Assembly (26) :

  1. Use the following hardware and install the 306-1643 Step Assembly (31) onto the 306-2277 Ladder As (33) :

  1. Install the 259-4506 Film (21) onto the 278-9594 Bracket Assembly (26) .



    Illustration 5g01352304

    View of arm assembly

  1. Use the following hardware and install the 306-2271 Arm Assembly (32) onto the 267-1780 Plate (22) :

  1. Use a 5L-4035 Retaining Ring (42) and install the 254-4152 Cylinder (10) and a 254-4151 Roller (9) onto the 306-2271 Arm Assembly (32) .

  1. Use a 5L-4035 Retaining Ring (42) and install a 254-4151 Roller (9) onto the other side of the 306-2271 Arm Assembly (32) .



    Illustration 6g01359868

    View of subassembly of the inclined ladder

  1. Slide the 254-4152 Cylinder (10) and the two 254-4151 Rollers (9) into the 306-2277 Ladder As (33) from the bottom.

  1. Use the following hardware and fasten the end of the 254-4152 Cylinder (10) onto the 306-2277 Ladder As (33) :




    Illustration 7g01359880

    View of subassembly of the inclined ladder

  1. Install the 303-2112 Gas Spring (30) .

  1. Use the following hardware and install the 303-1458 Hook (29) onto the 306-2277 Ladder As (33) :




    Illustration 8g01359888

    View of subassembly of the inclined ladder

  1. Use the following hardware and install the two 254-4154 Plates (11) onto the 306-2277 Ladder As (33) :

  1. Use the following hardware and install the two 254-4156 Step Belts (12) onto the two 254-4154 Plates (11) :

  1. Use the following hardware and install the 234-1530 Step As (6) onto the two 254-4156 Step Belts (12) :




    Illustration 9g01362167

    View of the inclined ladder

  1. Use the following hardware and install the 278-9594 Bracket As (26) onto the 278-9579 Fender As (24) :

  1. Use the following hardware and install the 267-1780 Plate (22) onto the tool box:

  1. Install the 7X-7729 Washer (48) and the 8T-4137 Bolt (53) into the tool box.

Install the Hose Assembly




    Illustration 10g01355660

    Front view of inclined ladder group

  1. Install the 3V-4791 Grommet (39) into the left fender.

  1. Use a 4J-5477 O-Ring Seal (40) and install the 254-5257 Elbow (19) onto the bottom port of the 254-4152 Cylinder (10) .

  1. Mount the 7I-1024 Guard (64) onto one end of the 310-4761 Hose As (27). Run this end of the hose through the 3V-4791 Grommet (39) and connect the hose onto the 254-5257 Elbow (19).



    Illustration 11g01357012

    Inclined ladder group

  1. Use the following hardware and install the 254-8698 Cover As (20) onto the 306-2277 Ladder As (33) :




    Illustration 12g01360048

    View of assembled block

  1. Preassemble the following parts:




    Illustration 13g01360067

    View of installation of the block assembly

  1. Insert the 254-4189 Block (15) into the opening on the 306-2277 Ladder As (33). Turn the 254-4189 Block within the frame of the ladder. Slide the 254-4189 Block (15) to the top of the opening on the 306-2277 Ladder As (33). Tighten the 8T-4137 Bolt (53) .

  1. Use the following hardware and install the 302-6795 Cover (28) onto the 306-2277 Ladder As (33) :




    Illustration 14g01357040

    Top view of hose for the Inclined ladder group

  1. Route the 310-4761 Hose As (27) per Illustration 14.

  1. Use the following hardware and secure the 310-4761 Hose As (27) :




    Illustration 15g01357047

    View of Area "C" from Illustration 14

    (Y) Hose for the parking brake actuator

    (Z) Parking brake control valve

  1. Disconnect hose (Y) from the top of the parking brake control valve (Z) .

  1. Install the 148-8434 Tee As (46) onto the parking brake control valve.

  1. Reconnect hose (Y) .

  1. Install the 150-4050 Elbow As (47) onto the 148-8434 Tee As (46) .

  1. Use a 3J-1907 O-Ring Seal (38) and install the 149-2847 Fitting (3) onto the 8T-0788 Elbow (49) .

  1. Install the 244-1542 Orifice Plug (8) into the 143-7685 Special Adapter (36) .

  1. Use a 3J-1907 O-Ring Seal (38) and install the 143-7685 Special Adapter (36) into the 149-2848 Coupling As (4) .

  1. Place the ring of the 153-6223 Dust Plug (5) over the 143-7685 Special Adapter (36) and 149-2848 Coupling As (4) .

  1. Use a 4J-5477 O-Ring Seal (40) and connect the 310-4761 Hose As (27) onto the 143-7685 Special Adapter (36) .

  1. Connect the 149-2848 Coupling As (4) to the 149-2847 Fitting (3) .

Installation of the 291-3712 Ladder Ar for the 966H and the 972H Wheel Loaders

Removal of the Standard Ladder Gp and Left Hand Fender




    Illustration 16g01360184

    Left hand view of machine

    (A) Rear handrail

    (B) Front handrail

    (C) Ladder assembly

    (D) Bolts

    (E) Washers

    (G) Support assembly

  1. Remove four bolts (D) and four washers (E). Remove ladder (C) .

  1. Remove handrail (B). Retain the hardware for later use.

  1. Remove handrail (A). Retain the handrail and the hardware for later use.

  1. Refer to view "F-F" in Illustration 16. Remove four bolts (D) and four washers (E). Remove the support assembly (G) .



    Illustration 17g01360182

    View of left hand rear fender

    (A) Rear handrail

  1. Use the original hardware and install the 267-1783 Fender As (LH) (24) .

  1. Use the original hardware and install the 272-2787 Handhold As (Front, LH) (25) .

  1. Use the original hardware and reinstall the original rear handrail (A) .

Install the Tool Box Gp




    Illustration 18g01361025

    Views of the Tool box gp

  1. Use the following hardware and install the two 267-1702 Console Assemblies (3) onto the frame:

  1. Install the 3E-6602 Seal (11) around the inside edge of the 272-2785 Door (5) .

  1. Use the following hardware and install the 272-2785 Door (5) onto the 272-2776 Tool Box Assembly (4) :

  1. Use the included hardware and install the 294-2382 Latch As (1) and the 222-5151 Pawl (2) onto the 272-2785 Door (5) .

  1. Use the following hardware and install the 272-2776 Tool Box Assembly (4) onto the two 278-9587 Console Assemblies (3) .

Install the Ladder Group




    Illustration 19g01360492

    Inclined ladder group

  1. Use the following hardware and install the 303-1459 Ladder As (32) onto the 267-1778 Bracket Assembly (22) :

  1. Use the following hardware and install the 306-1643 Step Assembly (34) onto the 303-1459 Ladder As (32) :

  1. Install the 259-4506 Film (21) onto the 267-1778 Bracket Assembly (22) .



    Illustration 20g01360570

    View of arm assembly

  1. Use the following hardware and install the 302-6793 Arm Assembly (30) onto the 259-3011 Plate (20) :

  1. Use a 5L-4035 Retaining Ring (46) and install the 254-4152 Cylinder (11) and a 254-4151 Roller (10) onto the 302-6793 Arm Assembly (30) .

  1. Use a 5L-4035 Retaining Ring (46) and install a 254-4151 Roller (10) onto the other side of the 302-6793 Arm Assembly (30) .



    Illustration 21g01360613

    View of ladder assembly

  1. Slide the 254-4152 Cylinder (11) and the two 254-4151 Rollers (10) into the 303-1459 Ladder As (32) from the bottom.

  1. Use the following hardware and fasten the end of the 254-4152 Cylinder (11) onto the 303-1459 Ladder As (32) :

  1. Use the following hardware and install the 283-2174 Hook (27) onto the 303-1459 Ladder As (32) :




    Illustration 22g01360648

    View of ladder assembly

  1. Use the following hardware and install the two 254-4154 Plates (12) onto the 303-1459 Ladder As (32) :

  1. Use the following hardware and install the two 255-7504 Step Belt (67) onto the two 254-4154 Plates (12) :

  1. Use the following hardware and install the 234-1530 Step As (7) onto the two 255-7504 Step Belts (76) :




    Illustration 23g01361218

    View of ladder assembly

  1. Use the following hardware and install the 267-1778 Bracket As (22) onto the 267-1783 Fender As (24) :

  1. Use the following hardware and attach the 259-3011 Plate (20) onto the tool box:

  1. Install the 7X-7729 Washer (52) and the 8T-4137 Bolt (56) onto the tool box.

Install the Hose Assembly




    Illustration 24g01360706

    View of ladder assembly

  1. Install the 3V-4791 Grommets (42) into holes that are on both sides of the left fender.

  1. Use a 6V-8397 O-Ring Seal (51) and install the 254-5257 Elbow (19) onto the bottom port of the 254-4152 Cylinder (11) .

  1. Mount the 7I-1024 Guard (68) onto one end of the 224-2312 Hose As (6). Connect the hose onto the 254-5257 Elbow (19). Run the other end of the hose through the 3V-4791 Grommets (42).



    Illustration 25g01361604

    View of ladder assembly and fender

  1. Use the following hardware and install the 302-6795 Cover (31) onto the 303-1459 Ladder As (32) :

  1. Use the following hardware and install the 283-2175 Plate (28) onto the 303-1459 Ladder As (32) :




    Illustration 26g01361492

    View of assembled block and plate

  1. Preassemble the following parts:




    Illustration 27g01361506

    View of installation of block

  1. Insert the 254-4189 Block (15) into the opening on the 303-1459 Ladder As (32). Turn the 254-4189 Block within the frame of the ladder. Slide the 254-4189 Block (15) to the top of the opening on the 303-1459 Ladder As (32). Tighten the 8T-4137 Bolt (56) .



    Illustration 28g01360817

    Top view of inclined ladder gp with hose

  1. Route the 224-2312 Hose As (6) per Illustration 28.

  1. Use the following hardware and secure the 224-2312 Hose As (6) :




    Illustration 29g01360831

    View of connection to the parking brake actuator

  1. Disconnect the hose from the top of the parking brake actuator.

  1. Install the 148-8433 Tee As (38) onto the parking brake actuator.

  1. Reconnect the hose for the parking brake actuator onto the 148-8433 Tee As (38) .

  1. Install the 150-4050 Elbow As (40) onto the 148-8433 Tee As (38) .

  1. Install the 149-2847 Fitting (4) onto the 150-4050 Elbow As (40) .

  1. Install the 244-1542 Orifice Plug (9) into the 143-7685 Special Adapter (37) .

  1. Use a 3J-1907 O-Ring Seal (41) and install the 143-7685 Special Adapter (37) into the 149-2848 Coupling As (39) .

  1. Place the ring of the 153-6223 Dust Plug (5) over the 143-7685 Special Adapter (37) and 149-2848 Coupling As (39) .

  1. Use a 4J-5477 O-Ring Seal (43) and connect the 224-2312 Hose As (67) onto the 143-7685 Special Adapter (37) .

  1. Connect the 149-2848 Coupling As (39) to the 149-2847 Fitting (4) .

Caterpillar Information System:

904H Compact Wheel Loader Brake System Fluid Level - Check - If Equipped
906K, 906M, 907K, 907M, 908K and 908M Compact Wheel Loaders Brake System Fluid - Change - If Equipped
D6K Track-Type Tractor Machine Systems Hydraulic Tank - Assemble
C4.4 (Mech) Industrial Engine Engine Design
C11 and C13 Industrial Engines Piston and Rings
D6K Track-Type Tractor Monitoring System Electrical Connector - Inspect
D6K Track-Type Tractor Monitoring System Self Test
D6K Track-Type Tractor Electrohydraulic Power Train Worksheets - Troubleshoot
D6T Track-Type Tractor Hydraulic System Piston Pump (Implement)
D6T Track-Type Tractor Hydraulic System Piston Pump (Implement)
D6K Track-Type Tractor Machine Systems Hydraulic Tank - Disassemble
Bench Test Procedure For A 73D, 772, 772B, 773B, 773D, 773E, 773F, 773G, 775B, 775D, 775E, 775F, 775G Off-Highway Truck and 988B, 992C, and 992D Wheel Loader Torque Converter{3101} Bench Test Procedure For A 73D, 772, 772B, 773B, 773D, 773E, 773F, 773G, 775B, 775D, 775E, 775F, 775G Off-Highway Truck and 988B, 992C, and 992D Wheel Loader Torque Converter{3101}
PL61 Pipelayer and D6K Track-Type Tractor MID 039 - CID 0497 - FMI 13
PL61 Pipelayer and D6K Track-Type Tractor MID 039 - CID 0498 - FMI 13
PL61 Pipelayer and D6K Track-Type Tractor MID 039 - CID 1197 - FMI 13
PL61 Pipelayer and D6K Track-Type Tractor MID 039 - CID 1198 - FMI 13
PL61 Pipelayer and D6K Track-Type Tractor MID 039 - CID 1884 - FMI 13
PL61 Pipelayer and D6K Track-Type Tractor MID 039 - CID 1885 - FMI 13
PL61 Pipelayer and D6K Track-Type Tractor MID 039 - CID 1933 - FMI 13
PL61 Pipelayer and D6K Track-Type Tractor MID 039 - CID 1934 - FMI 13
PL61 Pipelayer and D6K Track-Type Tractor MID 039 - CID 2211 - FMI 13
D6K Track-Type Tractor Power Train Track Brake - Remove
D6K Track-Type Tractor Power Train Track Brake - Install
816F Series 2 Landfill Compactor, 815F Series 2 Soil Compactor and 814F Series 2 Wheel Dozer Machine Systems Tilt and Tip Cylinder - Remove and Install
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.