Shaft Assembly Kit for Rainhart Soil Compactor

The Shaft Assembly Kit is a replacement component kit designed for the Rainhart 662EP Automatic Proctor Soil Compactor. This kit includes the shaft, upper guide bushing, guide disc, nut, and associated hardware needed to service the compactor's shaft and guidance system.

Designed to restore proper mechanical alignment and dependable operation, the Shaft Assembly Kit provides a convenient solution for replacing worn or damaged components within the compactor's hammer lifting and guidance mechanism. Maintaining these components helps support smooth equipment operation, consistent compaction cycles, and reduced laboratory downtime.

The complete kit offers a practical maintenance solution for geotechnical laboratories, construction materials testing facilities, and state DOT laboratories operating Rainhart automatic soil compactors.

Key Features

• Designed for the Rainhart 662EP Automatic Proctor Soil Compactor, which supports soil moisture-density testing in accordance with ASTM D698, ASTM D1557, AASHTO T 99, and AASHTO T 180, Tex-113-E,. Tex-114-E & Tex-117-E
• Includes the shaft, upper guide bushing, guide disc, nut, and associated hardware for servicing the compactor's shaft assembly.
• Provides a convenient replacement kit for multiple related components, reducing the need to order individual parts separately.
• Helps maintain proper shaft guidance and alignment during the compactor's automated hammer lifting and release cycles.
• Supports dependable mechanical operation by replacing worn or damaged shaft and guidance components.
• Allows laboratories to service existing automatic soil compactors without replacing the complete machine.
• Helps minimize equipment downtime and supports preventive maintenance programs in high-volume soil testing laboratories.

Included Items

The Shaft Assembly Kit includes one shaft, one upper guide bushing, one guide disc, one nut, and associated installation hardware. These components are supplied together under Part Number 662-1200 for maintenance and repair of compatible Rainhart automatic soil compactors.

Lab Manager's Tip

Inspect the shaft assembly periodically for scoring, excessive wear, improper alignment, or unusual movement during compactor operation. Pay particular attention to the upper guide bushing and guide disc, as wear in these components can interfere with proper shaft guidance and smooth mechanical operation.

The replacement Guide Disc (662-1200-182) has a diameter of 7.25" and should be inspected for edge wear. Rainhart recommends replacing the guide disc when the edges show signs of wear.

When replacing the shaft assembly, inspect the associated grabber assembly (662-1300) for worn contact surfaces or improper engagement. For laboratories performing ASTM D698, ASTM D1557, AASHTO T 99, or AASHTO T 180 testing, verify the complete hammer mass, specified drop height, and proper operating performance before returning the compactor to service.

• Rainhart_Soil_Compactor_662EP_Parts_Diagram.pdf