415F2 IL Backhoe Loader Axles, Differentials and Brakes Axle (Front) - Adjust Caterpillar


Axle (Front) - Adjust
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415F2 IL Backhoe Loader Axles, Differentials and Brakes [M0065432]
BRAKING SYSTEM
415F2 IL Backhoe Loader Axles, Differentials and Brakes Axle (Front) - Adjust
1.1. Specifications
2.1. Required Tools
3.1. Introduction
4.1. Test Preparation - Toe-in
5.1. Adjustment Procedure for the Toe-In
6.1. Test Preparation - Steering Angle
7.1. Adjusting the Steering Angle

Specifications

Table 1
Specifications 
Ball Joint 
Ball Joint  Torque  300 N·m (221 lb ft)   
Tie Rod 
Tie Rod Nut  Torque  280 N·m (207 lb ft)   
dimension  Measurement  equal on both sides of the hydraulic steering cylinder (6)   
dimension  Measurement  b should be 0.0 mm to 5.0 mm (0.0 inch to 0.19 inch) less than c   
dimension  Measurement  c should be 0.0 mm to 5.0 mm (0.0 inch to 0.19 inch) greater b   
dimension  Measurement  500 mm (19.7 inch)   
dimension  Measurement  e should equal f   
dimension  Measurement  f should equal e   
Steering Angle 
angle  Measurement  51 degrees   
11  Steering Stop Nut  Torque  150 N·m (111 lb ft)   

Required Tools

Table 2
Required Tools 
Item  Part Number  Description 
154-9731  Thread Lock Compound 
Item  Qty  Description 
1000 mm (39.4 inch) Steel bar 

Introduction

The following information describes the procedures for adjusting the front axle steering linkages.

Test Preparation - Toe-in

  1. Raise the front wheels slightly off the ground.

  2. Install sufficient blocking under the frame and lower the machine to the blocking.

Adjustment Procedure for the Toe-In



Illustration 1g03688416
Typical example of the front drive and steering axle
(1) Tie rod nut
(2) Locknut
(3) Adjustment rod
(4) Ball joint
(5) Cylinder rod
(6) Hydraulic steering cylinder

  1. Tighten the ball joint (4) to 300 N·m (221 lb ft).

  2. Tighten the tie rod nut (1) to 280 N·m (207 lb ft).


    Illustration 2g03688430

  3. Position the cylinder rod (5) until dimension (a) is equal on both sides of the hydraulic steering cylinder (6).

  4. Loosen the locknut (2).


    Illustration 3g03688470
    Typical example
    (D) 500 mm (19.7 inch)

  5. Put two equal 1000 mm (39.4 inch) linear bars on the wheel hubs and lock the bars with two nuts on the wheel stud.

    Note: The two bars should be bolted at the middle so that the bars are perpendicular to the supporting surface and parallel to the pinion shaft. Align the two bars.



    Illustration 4g03688480
    Typical example
    (b) Distance in front of the axle from the bar to the bar
    (c) Distance behind the axle from the bar to the bar
    (e) Diagonal distance from the bar to the bar
    (f) Diagonal distance from the bar to the bar

  6. Measure the distance (b) and (c) between the ends of the bars. Measure the distance (e) and (f) between the ends of the bars.

  7. Adjust the rods (3) until distance (b) and distance (c) are equal. Adjust the angle until distance (e) and distance (f) are equal.

  8. Repeat Step 7 until no adjustment is required.

  9. Adjust the rods (3) until dimension (b) is less than dimension (c) by 0.0 mm to 5.0 mm (0.0 inch to 0.19 inch).

  10. Verify that the distance (e) and distance (f) are still equal. Verify that distance (b) is less than dimension (c) by 0.0 mm to 5.0 mm (0.0 inch to 0.19 inch).

  11. Tighten the locknuts (2) to 250 N·m (185 lb ft).

  12. Remove the blocking and lower the machine to the ground.

Test Preparation - Steering Angle



Illustration 5g03688538
Typical example
(11) Locknut
(12) Knuckle
(13) Bolt

After the wheels have been correctly aligned, the maximum steering angle must be adjusted. Each wheel is equipped with a knuckle (12). The knuckle is equipped with two bolts (13) that act as steering stops. Each bolt is secured in place with a locknut (11).

  1. Park the machine on level ground. Move the transmission control to the NEUTRAL position. Lower the boom and retract the boom. Engage the parking brake.

  2. Raise the front of the machine to lift the front wheels off the ground. Place the jack in a location that will sustain the weight of the machine such as the axle pads. The axle pad should be parallel to the ground. The head of the jack should be against a flat surface. Use a jack which will support the weight of the machine.

  3. Remove both of the front wheels.


    Illustration 6g03688502
    Typical Example

  4. Place 1 bar (B) against the outer flange of the final drive on the left side. Secure the bar in place with two existing wheel nuts. Repeat the procedure for the final drive on the right side.

Adjusting the Steering Angle

  1. Loosen locknuts (11) on both stop bolts (13). Turn both bolts (13) clockwise until the bolts bottom out.

  2. Hold a third straight bar (B) against the housing for the steering cylinder.


    Illustration 7g03688505
    Typical Example

  3. Rotate the left side final drive until the angle (g) that is formed by the two bars measures 52 degrees.

  4. Turn stop bolt (13) on the left side knuckle counterclockwise until the head of the screw contacts the steering stop. Secure the screw in place with locknut (11). Tighten locknuts (11) to a torque of 150 N·m (111 lb ft).

  5. Repeat step 4 for the stop screw on the right side knuckle.

  6. Rotate the final drive on the right side until the angle that is formed by the two bars measures 52 degrees.

  7. Turn stop bolt (13) on the right side knuckle counterclockwise until the head of the bolt contacts the steering stop. Secure the screw in place with locknut (11). Tighten locknuts (11) to a torque of 150 N·m (111 lb ft).

  8. Remove measuring bars (B).

  9. Replace both wheels and lower the machine to the ground.

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