Usage:
768C (02X),
772B (64W),
776C (2TK) Tractors;
769C (01X),
773B (63W),
777C (4XJ) Trucks;
771C (3BJ),
775B (7XJ) Quarry Trucks
Description of Change: Fabric suspension cylinder covers have replaced the metal covers on the rear suspension cylinders. A fabric cover is also being used to protect the front suspension cylinder from dirt and debris.
Adaptable To: The fabric covers are in effect with 768C (02X400-Up), 772B (64W300-Up), 776C (2TK1-Up) Tractors, 769C (01X6600-Up), 773B (63W4200-Up), 777C (4XJ495-Up) Trucks and 771C (3BJ200-Up), 775B (7XJ200-Up) Quarry Trucks. The fabric boots can be adapted to all earlier machines. The fabric boots and clamps required to hold them in place are shown in the chart.
Front Fabric Suspension Cylinder Cover Installation
1. Wrap the suspension cover (1) around the front suspension cylinder tube. Fasten the Velcro® strips together.
2. Install the clamp (2) as shown in Illustration 1.
Illustration 1. Front Fabric Suspension Cylinder Cover Installation (1) Fabric cover. (2) Clamp.
Rear Fabric Suspension Cylinder Cover Installation
1. Wrap the suspension cover around the rear suspension cylinder tube. Fasten the Velcro® strips together.
2. Make sure the tires are on the ground and the suspension cylinders are properly charged. Install (but do not tighten) the clamps as shown in Illustration 2.
3. Adjust the covers so the suspension cylinder can move without stretching or damaging the cover. Tighten the clamps.
NOTE: If the machine is going to be lifted so the tires are off the ground, loosen the cover clamps so the covers are not damaged. Also, if the haul road conditions ore rough enough to cause the cylinder rods to be fully extended during operation, move the top down on the cylinder as far as possible without the cover coming off the cylinder.
Illustration 2. Rear Fabric Suspension Cylinder Cover Installation (1) Fabric cover. (2) Clamps.