CORE AS-FUEL COOLER 3688654 - Caterpillar

Table 1
Required Tools    
Part Number     Description     Qty    
4C6500     Digital Thermometer     1    
4C4892     ORFS Fittings Group     1    
8T0861     Pressure Gauge     1    
Sudden movement of the machine or release of oil under pressure can cause injury to persons on or near the machine.To prevent possible injury, perform the procedure that follows before testing and adjusting the vibratory system.
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, 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.
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.
Note: The Main Relief Valve test must be done before you do the vibratory valve test.Note: The hydraulic oil temperature should be at least 38°C (100°F).
Illustration 1 g00581605
Location Of Components In The Vibratory Pump (1) Vibratory pump. (2) Valve cap. (3) Pressure tap. (4) Pressure tap. (5) Valve Cap. (6) Pressure override.
Before you conduct the testing and adjusting on the vibratory valve, the following steps must be followed:
Apply the parking brake.
Place the speed/direction control lever in Neutral.
Place the vibratory selector switch in the automatic position.
Place tires under both drums.
Start the engine. Run the engine at high idle.
Connect a 60000 kPa (8700 psi) pressure gauge to pressure taps (3) and (4) .
Disconnect the line from the pressure override (6) to the vibratory pump (1). Plug and cap the fitting immediately.
Place the vibratory selector switch in the dual drum vibration mode with the eccentric weights at high amplitude.
Move the propel control lever to the forward direction. Record the maximum pressure on the gauge at the pressure tap (3). This reading must be taken when the vibratory system is started or stopped. The high pressure relief valve setting is 36000 1700 kPa (5221 247 psi).
Illustration 2 g00592542
Relief Valve Cartridge (7) Spindle. (8) Collar. (9) Lock screw.
If the main relief valve pressure is not correct, adjust the cartridge (2) according to the following procedure:
Stop the engine.
Remove the forward valve cap (2) .
Remove the high pressure relief valve cartridge. Install the cap of high pressure relief valve (2). This will ensure that the oil does not leak while adjustments are made to the cartridge and the spring.
Hold the high pressure relief valve cartridge in a bench