LATCH ASSEM. 7G2548 - Caterpillar

Personal injury or death can result from machine articulation or movement.Machine frames can move and a person can be crushed.Connect the steering frame lock link between the front and rear frames before working on machine.
Sudden movement or accidental starting of the machine can cause personal injury or death to persons on or near the machine.To prevent personal injury or death, perform the following:Park the machine on a smooth, level surface.Lower the work tool to the ground and engage the parking brake.Stop the engine and remove the key.Block the wheels and install the steering frame lock.
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.
Table 1
Required Tools
Part Number Description Quantity
169-7372 Fluid Sampling Bottle 1
177-9343 Fluid Sampling Cap and Probe Gp 1 The hydraulic oil in this system is SAE 10. If the hydraulic oil becomes contaminated, premature component failure could result. Contaminated hydraulic oil can also contribute to overheating.Use the following procedure in order to sample the hydraulic oil.
Start the engine and run the engine at high idle. Allow the oil temperature to reach the normal operating temperature.
Actuate all cylinders through a minimum of ten full cycles.
Lower the work tools to the ground.
Stop the engine.
Release the pressure in the hydraulic system. Reference: For additional information about the release of hydraulic oil pressure, refer to the Service Manual module Testing and Adjusting, "System Pressure - Release" for the machine that is being serviced.
Make sure that all of the control levers are in the HOLD position.
Illustration 1 g00857123
Location of Fluid Sampling Valve for the Steering and Hydraulic Fan System
(1) Fan motor. (2) Fluid sampling port. (3) Hydraulic oil cooler.
Illustration 2 g01217047
Location of Fluid Sampling Valve for the Brake and Implement System (Top View)
(4) Fluid Sampling Valve. (5) Pressure Tap. (6) Hydraulic Tank.
Note: Fluid sampling valve (4) for the brake and the implement system is under the right side cab platform. Fluid sampling valve (2) for the steering and the hydraulic fan system is at the top of hydraulic oil cooler (3).
Purge fluid sampling port (2). Insert an 8T-9208 Probe Assembly into the hydraulic oil sampling port. Note: Use approximately 150 mm (6 inch) length of tube on the end of the probe. Drain approximately 100 mL (4 fl oz) of oil into a container for disposal. This will clean out the sampling port so that a good oil sample may be obtained.
Start the engine and allow the engine to run at low idle. Note: Do not operate the hydraulic controls.
Use a clean tube to draw a 50 mL (2 fl oz) oil sample from the fluid sampling valve. Use an 8T-9190 Fluid Sampling Bottle in order