JLG Rotary Coupling Seal Kit 70001248 – 600S, 800AJ Boom Lift Swivel Joint

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Rotary Coupling Seal Kit 70001248 – Optimized Product Page Content

JLG Rotary Coupling Seal Kit 70001248

🔹 Product Overview

The Rotary Coupling Seal Kit with JLG Part Number 70001248 is a critical, high-performance seal set designed specifically for the Hydraulic Rotary Coupling (or Swivel Joint) utilized in the turntable assembly of a wide range of popular JLG Boom Lifts. This includes models such as the 400S, 460SJ, 600A, 600AJ, 600S, 660SJ, 800A, 800AJ, 800S, and 860SJ.1

The rotary coupling is essential for allowing the boom and turntable to rotate 360 degrees continuously while securely transferring high-pressure hydraulic fluid (for drive, steer, and lift functions) and electrical signals from the chassis to the rotating upper structure.

Seal failure within the coupler causes two major issues: external hydraulic leaks or dangerous internal cross-port leakage. Internal leakage results in pressure loss, sluggish functions, and erratic drive/steer behavior, particularly when the turntable is rotating. Using the 70001248 seal kit restores the coupling’s sealing integrity, ensuring safe, reliable, and smooth hydraulic function across all rotational angles.

🔹 Key Features & Benefits

✅ Rotary Coupling Repair: Specifically designed to rebuild the internal seals of the Hydraulic Rotary Coupling common to JLG Mid-Range Boom Lifts.
✅ Eliminates Cross-Port Leaks: Crucial for maintaining separation and pressure integrity between circuits (drive, steer, lift) during turret rotation.
✅ Wide Model Compatibility: Fits the specified rotary swivel found on popular 40-foot to 86-foot JLG Articulating and Telescopic Boom Lifts.²
✅ Cost-Effective Solution: Repairs the complex and expensive rotary coupling component, providing significant savings over replacement.
✅ Direct Replacement: High-quality aftermarket or genuine OEM equivalent for JLG seal kit 70001248.

🔹 Technical Details

Detail	Specification
JLG Seal Kit PN	70001248
Cross-Reference	Varies based on compatible coupling PN (Verify application details).
Condition	New Aftermarket or Original Equipment Manufacturer (OEM)
Type	Hydraulic Rotary Coupling Seal Kit (Swivel Manifold)
Components	Custom O-rings, specialized seals, and backing rings for rotary manifold internals.
Function	Seals the internal hydraulic passages to prevent leakage and fluid mixing during 360-degree rotation.
Intended Use	Repair/Rebuild of Rotary Couplers on JLG Mid-Range Boom Lifts.
Installation Note	Requires professional hydraulic service tools and careful assembly in a clean environment.
Warranty	Standard warranty against manufacturing defects (varies by supplier)

🔹 Compatible JLG Models & Applications

The Rotary Coupling Seal Kit 70001248 is essential for maintaining the hydraulic integrity of the most common JLG boom lift fleet. Always verify the rotary coupler part number on your machine against the kit’s compatibility list before purchase.

JLG Equipment Series	Specific Compatible Models (Examples)
Articulating Boom Lifts	600A, 600AJ, 800A, 800AJ
Telescopic Boom Lifts	400S, 460SJ, 600S, 660SJ, 800S, 860SJ
Common Application	Fixing leaks and intermittent function issues in the complex swivel joint that transfers hydraulic power between the chassis and rotating turret.

🔹 Why Choose a Quality 70001248 Seal Kit?

Critical Safety Fix: Eliminates erratic drive and steering behavior caused by cross-port leakage during turret rotation.
Component Longevity: Timely seal replacement prevents internal scoring and damage to the expensive rotary manifold housing.
Precision Sealing: Components are manufactured from materials rated for the high pressures and mechanical stresses of continuous rotation.
System Reliability: Restores predictable speed, stability, and control to all hydraulic functions, maximizing machine uptime.

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Delivery Times

Average Delivery Time is 10-15 days within worldwide.
For overseas delivery Message Us or Call Toll Free at +8618221399269

General Returns: All returns must be requested within 30 days of invoice.
Please note that this refund policy applies to parts purchases only. There are no refunds available for equipment purchases.

General Returns: All return requests must be made within 30 days of the invoice date. Returned merchandise will ONLY be accepted with an issued Return Authorization number and must be returned within 30 days of issuing that Return Authorization number. Special-Order products, electronics, paints, chemicals, lubricants, LPG tanks, and fire extinguishers are non-returnable once ordered. Returned items must be sent to Shanghai RQMACHINE Equipment with freight prepaid.

All returns, except those involving a Shanghai RQMACHINE Equipment order or product error, will be subject to a 25% restocking charge per line item.

Merchandise returned as defective will be thoroughly tested and inspected. For items verified as defective, Shanghai RQMACHINE Equipment will, at its sole discretion, either repair or replace the merchandise at no charge, or issue a full credit for the defective merchandise, including freight. Merchandise returned as defective but found to be working properly will be subject to a testing fee and the 25% restocking charge per line item.

Credit will not be issued for merchandise damaged due to corrosive materials, abuse, alteration, or misuse.

Before returning any merchandise to Shanghai RQMACHINE Equipment, a Return Authorization Number must be obtained from our sales/customer service department.

Your request must include:

Part Number & Description
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Phone: +8618221399269