TENSIONER-BELT 3477092 - Caterpillar

Table 1
Required Tools    
Part Number     Part Description     Qty    
6V-3079     Hose Assembly     1    
6V-4143     Coupler     2    
8T-0859     Pressure Gauge (0 to 25,000 kPa (0 to 3,600 psi))     1    
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the attachments have been lowered, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
Personal injury or death can result from sudden machine movement.Sudden movement of the machine or release of oil pressure can cause injury to persons on or near the machine.To help prevent possible injury or death, refer to the information in Testing and Adjusting, "Machine Preparation for Troubleshooting".
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
When the eject sequence valve is correctly adjusted, the retract cycle will occur in the correct sequence. When the body is retracted from the fully ejected position, the tailgate should not move until the ejector plate has retracted past half the body length.
Damage to the ejector body or ejector body tailgate may occur if the eject cycle sequence is not correct.
Test and Adjust
Illustration 1 g01038323
(1) Manifold (2) Sequence valve (Ejector) (3) Pressure tap
Stop the engine and install a 8T-0859 Pressure Gauge (0 to 25,000 kPa (0 to 3,600 psi)) to pressure tap (3) .
Illustration 2 g01038312
(4) Adjustment screw (5) Lock nut
Loosen lock nut (5) in order to turn adjustment screw (4). Turn adjustment screw (4) clockwise until there is no more adjustment.
Move the hoist control lever into the RETRACT position, ensuring that the ejector plate is pushing against the ejector plate stops.
Hold the hoist control lever in the RETRACT position, and adjust the ejector sequence valve. Turn adjustment screw (4) counter-clockwise until the tailgate moves. The pressure gauge should read 13790 690 kPa (2000 100 psi).
If the pressure is incorrect turn adjustment screw (4) until the pressure is 13790 690 kPa (2000 100 psi). Tighten lock nut (5) .