CAGE 3S7308 - Caterpillar

Hot hydraulic oil under high pressure can remain in the components of the hydraulic system or the power train system after the engine has been stopped. The uncontrolled release of the hydraulic oil can cause sudden machine movement and can also result in the following conditions:
Burns
The penetration of body tissue
Other personal injury
DeathIf hydraulic oil penetrates body tissue, the injury must be treated immediately by a doctor who is familiar with this type of injury. Use a board or a piece of cardboard to check for a hydraulic oil leak. Make sure that all of the attachments have been lowered to the ground and that all trapped pressure has been released from the hydraulic system and the power train system. Also, make sure that the hydraulic oil is cool before the removal of any components or lines. Remove the hydraulic 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 not engaging the parking brake.Transmission engagement alone will not prevent machine from rolling when the engine is stopped.
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, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
Introduction
This story includes the following tests:
Transmission Oil Pump (Charge) Pressure
Torque Converter Inlet Pressure
Transmission Lubrication Pressure
Transmission Clutch PressureRequired Tools
Illustration 1 g01106077
Tooling (A)
Illustration 2 g06089485
Tooling (B)
Table 1
Tool Item Part Number Description Qty
A A1 8T-0854 Pressure Gauge
( 0 to 1000 kPa (0 to 145 psi)) 1
A2 8T-0855 Pressure Gauge
( 0 to 4000 kPa (0 to 580 psi)) 1
A3 6V-3989 Fitting 1
A4 6V-4143 Quick Connect Coupler 2
A5 177-7860 Hose As
( 3 m (10 ft)) 1
B 198-4240 Digital Pressure Indicator Gp
B1 198-4234 Digital Indicator 1
B2 198-4237 Pressure Sensor Gp
( 3445 kPa (500 psi)) 1
B3 198-4239 Pressure Sensor Gp
( 68900 kPa (10000 psi)) 2
B4 198-4236 Adapter Cable As 3
C 187-3547 Quick Disconnect Coupler As 10 Reference: Refer to Tool Operating Manual , NEHS0818 , "Using the 198-4240 Digital Pressure Indicator Group" for more information on using Tooling (B).Machine Setup
Park the machine on a smooth, level surface.
Place the transmission in the NEUTRAL position.
Lower the work tool to the ground.
Engage the parking brake.
Place chocks in front of the wheels and behind the wheels.
Perform machine walk-around and check for any leaks or damage. Check transmission oil level and fill to proper level if necessary.
Allow only authorized personnel on the machine. Keep unauthorized personnel off the machine and in clear sight of the operator.
Transmission oil should at normal operating temperature.Specifications
Transmission Oil Operating Temperature
Transmission oil must be between 80 to 85° C (176 to 185°