PLATE-WEAR 1539272 - 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.
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.
Specifications
Table 1
Pressure Test for the Flywheel Lube
Date
- Product or Component SN
-
Item Specification Actual
LOW IDLE at pressure port (L2) 225 70 kPa (33 10 psi)
HIGH IDLE at pressure port (L2) 370 120 kPa (54 17 psi) Introduction
The following test will determine whether the pressure of the flywheel lubrication oil is within the specified limits.Required Tools
Illustration 1 g02571852
Tooling (A) 198-4240 Digital Pressure Indicator Gp
Table 2
Required Tools
Tool Item Qty Part No Description
A 198-4240 Digital Pressure Indicator Gp
A1 1 198-4234 Digital Indicator
A2 1 198-4237 Pressure Sensor Gp
(0 to 3,445 kPa (0 to 500 psi))
A3 1 198-4236 Adapter Cable As Test Preparation
Move the machine to a smooth horizontal location.
Place the steering control lever in the NEUTRAL position.
Engage the parking brake.
Illustration 2 g03806701
Typical
Verify that the bolt and washer are removed from location (1) on the counterweight frame and stored properly in the block indicated in illustration 2.
Extend the counterweight approximately 30.5 cm (12 inch).
Stop the engine.
Turn the key to the ON position, but do not start the engine.
Verify that the implement lockout switch is in the UNLOCKED position.
Move the thumb rocker for the counterweight control to the EXTEND position. The counterweight should move outward to the neutral position.
Move all hydraulic controls through all positions in order to relieve hydraulic pressure. Repeat this step until all hydraulic pressure is released. This procedure should relieve any pressure that may be present in the implement hydraulic system.
Illustration 3 g03814271
(2) Power train oil pump
(3) Fan pump
(4) Charge pump
(M) Torque converter inlet pressure tap
(N) Torque converter outlet pressure tap
(L2) Flywheel lube pressure tap
Attach tooling (A)