VALVE GP-CONTROL 1012956 - Caterpillar

Preparing The Machine For Winter Storage
To prepare the machine for outdoor storage: 1. Block the mainframe up so the weight of the machine is removed from the tires.2. Lower the front of the conveyor so it is resting on the crown adjusting screws and not touching the ground.3. Fill the hydraulic oil reservoir and then cover the hydraulic pump-motor-reservoir to keep rain, snow and dirt off.4. Coat the drive chains and conveyor chains with grease.5. Coat the exposed hydraulic cylinder piston rods with grease.6. Prepare the engine for storage as described in the engine manufacturer's manual. Be sure to use enough antifreeze to prevent freezing the coolant.7. Fill the fuel tank and correct any fuel leaks.8. If possible remove the conveyor drive V-belts, thoroughly clean them, and store in a cool dry place. Coat the pulley grooves with grease. If belts are not to be removed, relieve the tension in them to avoid permanent "sets" in the belts.Preparing The Machine For Operation After Storage
To prepare the machine for operation after winter storage: 1. Prepare the engine for operation as described in the engine manufacturer's manual. Do not start the engine until the entire machine has been prepared for operation.2. Install the conveyor drive V-belts and adjust the tension.3. Carefully remove the grease from the cylinder rods. Make sure all grit that may be lodged in the grease is removed.4. Remove the cover from the hydraulic pump-motor-reservoir.5. Check the air pressure in the tires and then remove the blocks from under the mainframe.6. Complete the 1000 Hour or Annual Service Procedures and all lubrication specified in the Lubrication Chart.7. Start the engine and check the machine for proper operation.Removing And Installing V-Belt Sheaves
To remove a sheave: 1. Use the adjusting bolts to loosen the V-belts and then remove the belts. 2. Loosen and remove the cap screws.3. Insert the cap screws in tapped removal holes.4. Tighten inserted screws until sheave is loose on shaft.5. Remove the sheave from shaft.To install a sheave: 1. Be sure the tapered cone surfaces of the bushing and the inside of the sheave hub are clean.2. Place the bushing in the sheave.3. Place the cap screws and lock washers loosely in pull-up holes. The bushing remains fully expanded to assure a sliding fit on the shaft.4. With the key on the shaft, slide the sheaves to the desired position on the shaft. Be sure the heads of the cap screws are on the outside.5. Align the sheave. Tighten the screws alternately and progressively until they are pulled up tight. To increase leverage, use a wrench or a length of pipe. Do not allow the sheave to be drawn into contact with the flange of the bushing; there should be a gap of from 1/8 to 1/4 inch (3.2 to 6.4 mm).When a wrench or length of pipe is used to increase leverage in tightening bushing screws, it is important to adhere to the torque values given below. This is important because the tightening force