Rice Lake Combination System - Precision Loads On-Board Weighing Systems - Manual (Page 37)

Applications 33
Figure 4-29. Hinge Pivot Installation
Figure 4-30. Block Diagram of Hinge Pin Kit
Note
All pivot pin installations require lubrication facilities. Normally lubrication is provided through the central pivot
area. However, some pivot pins themselves contain the facilities for pivot area lubrication. Be certain that if you
are replacing a pivot pin which has internal lubrication facilities, the replacement load pin also contains internal
lubrication fittings.
4.6.1 Installation Procedure
1. For removal of existing hinge and ram pins the body must be supported either by means of an overhead
lifting mechanism or an underneath set of jacks. Once the body of the vehicle is securely supported,
remove the existing hinge pins and any securing hardware present for those pins (collars, washers, etc.).
Use a pry bar if binding occurs.
2. Clean the surface area of the cheek plate where the new load pin collar will be welded in place. This
surface should be ground flat to bare metal and free from any paint or grease.
3. Inspect and clean the inside of the cheek plate holes so they are free of burrs, rust or dirt.
4. Install new load pins with the connector cables facing inwards for rear dual hinges. For lift cylinder load
pins, cable connectors normally face inwards for dual cylinder mounts, but the installer must determine the
best direction for facing the output cable in all cases, so there is no exposure to possible damage from
moving parts, road hazards, etc.
Note
When load pin is mounted so that its center position supports the truck body, the load pin UP ARROW(^)
should face upwards. When the load pin is mounted so that its outer ends support the truck body, and center
position is supported by the chassis, the load pin UP ARROW (^) should face downwards (v). If a pin reads
increasingly negative under increasing load, then it's position must be rotated 180 degrees.