- Asphalt Paver
- AP355F (S/N: NED1-115; NRG1-138; NTT1-118)
Introduction
The following instructions provide the steps necessary to replace the steering pin and steering column hub on certain AP355F Asphalt Pavers.
Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.
Reference Section
Reference: Refer to Disassembly and Assembly, M0073589, for more information.
Safety Section
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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. |
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Failure to follow all safety guidelines prescribed in this document and by governing authorities and regulatory agencies may result in severe injury or death of personnel or machine damage. |
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When removing a major component or attachment, ensure that it is properly blocked or secured before removing mounting hardware. An assembly that is disconnected without proper blocking may shift or fall, resulting in serious injury or death of personnel or machine damage. |
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Personal injury or death can result from improper maintenance procedures. To avoid injury or death, follow the procedures exactly as stated below. |
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Personal injury can result from improper handling of chemicals. Make sure you use all the necessary protective equipment required to do the job. Make sure that you read and understand all directions and hazards described on the labels and material safety data sheet of any chemical that is used. Observe all safety precautions recommended by the chemical manufacturer for handling, storage, and disposal of chemicals. |
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Climbing equipment may be required to access this service point. Refer to the Operation and Maintenance Manual, "Mounting and Dismounting" topic for safety information. |
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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. |
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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. |
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Observe the safe working load limits of all lifting and blocking devices and keep a safe distance from suspended/blocked loads. Personnel may be seriously injured or killed by falling loads. |
Required Parts
| Required Parts | ||||
|---|---|---|---|---|
| Item | Qty | Part Number | Part Name | Former Part Number |
| 1 | 1 | Hub | ||
| 2 | 4 | Snap Ring | ||
| 3 | 1 | Dowel | ||
Installation Procedure
When replacing the steering pin, use the following procedure:
- Remove the steering wheel and retain hardware for reuse. Refer to "Steering Wheel - Remove and Install" in the media listed above.
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Illustration 1 g06315868 View of Type 1 and Type 2 steering controls. Steering column shown removed from machine for viewing clarity.
(A)478-3974 Steering Control Gp (Type 1)
(B)478-3975 Steering Control Gp (Type 2)Note: Once the steering control group (Type 1 or Type 2) and mounting plates are removed, the remainder of the disassembly and reassembly procedure is the same.
- Remove the Type 1 or Type 2 steering control group and retain the hardware for reuse. Discard the 8T-0277 Spring Pin. Refer to "Steering Control (Force Control) - Remove and Install" in the media listed above.
- Disassemble the steering control and retain the hardware for reuse, except for the existing retaining rings. The retaining rings will be replaced with new snap rings (2) during reassembly. Refer to "Steering Control (Force Control) - Disassemble" in the media listed above.
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Illustration 2 g06315719 View of new steering hub partially assembled. Steering column shown removed from the machine for viewing clarity.
(A) Setscrew (retained from disassembly)
(B) Square key (retained from disassembly)
(1)535-8870 Hub
(2)1L-8497 Snap Ring - Assemble the steering control in the reverse order of disassembly using a new hub (1) and four new snap rings (2). Apply threadlocking compound to the setscrew threads (A) before assembly.
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Illustration 3 g06315799 View of the temporary position of the last snap ring. Steering column shown removed from the machine for viewing clarity.
(1)535-8870 Hub
(2)1L-8497 Snap Ring - Temporarily install the last (fourth) snap ring (2) onto the new hub (1) by positioning it between the last two grooves in the hub.
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Illustration 4 g06315693 Close-up view of the final position of the snap ring and steering pin.
Type 2 steering control is shown, Type 1 steering control similar.
(1)535-8870 Hub
(2)1L-8497 Snap Ring
(3)5S-6458 Dowel - Complete the assembly of the steering control by installing a new dowel (3). Reposition the last snap ring (2) into the groove, making sure that the opening is oriented 90 degrees from the dowel (3).
- Install the steering control on the machine in the reverse order of removal.
- Install the steering wheel.
