Upper Guide Bushing for Rainhart Soil Compactor

The Upper Guide Bushing (662-1200-184) is a replacement component designed for the Rainhart Series 662 Automatic Proctor Soil Compactor. Installed at the upper portion of the compactor's shaft guidance system, this bushing helps maintain proper positioning and guidance of the tamping assembly during laboratory soil compaction testing.

As part of the compactor's shaft assembly, the upper guide bushing provides a guided passage for the shaft during operation. Replacing a worn or damaged bushing helps maintain proper mechanical alignment, reduce excessive movement, and support dependable operation of the equipment.

Key Features

• Provides an upper guidance point for the compactor shaft as the tamping assembly moves through its operating cycle.
• Helps maintain proper shaft positioning and alignment when correctly installed and maintained.
• Can be replaced individually when servicing the compactor's shaft assembly, eliminating the need to purchase the complete shaft assembly kit when other components remain serviceable.
• Supports preventive maintenance programs by allowing laboratories to address worn or damaged shaft guidance components.
• Designed for use with the Rainhart Shaft Assembly Kit (662-1200) and associated shaft components.

Included Items

The Upper Guide Bushing includes one replacement upper guide bushing, Part Number 662-1200-184, for compatible Rainhart Automatic Proctor Soil Compactors. Additional mounting hardware or accessories have not been confirmed as included.

Lab Manager's Tip

Inspect the upper guide bushing periodically for excessive wear, scoring, deformation, or looseness that could interfere with proper shaft movement. Check the shaft for corresponding wear marks that may indicate misalignment or excessive clearance.

When replacing the bushing, inspect the associated Shaft Weldment (662-1200A) and Guide Disc (662-1200-182) for wear or damage. Rainhart's service documentation also describes an alternate mounting arrangement for the upper guide bushing; any adjustment should follow the manufacturer's instructions.

• Rainhart_Soil_Compactor_662EP_Parts_Diagram.pdf