REGULATOR-WATER TEMPERATURE 7E7933 - Caterpillar

Park the machine on a smooth, level surface.Lower the work tool to the ground. Engage the parking brake before activating the Implement Hydraulic Service Mode of the machine.Keep personnel off the machine. Clear the area under the implement linkage or around the implement linkage.If the machine is in the Implement Hydraulic Service Mode and the work tool is off of the ground, do not place the control levers into the FLOAT position. Placing the levers in the FLOAT position will cause the work tool linkage to immediately fall.Personal injury or death can result from falling work tool linkage.
The service mode for the implement hydraulics is used for certain test and adjustment procedures. Only the basic functions of the lift and tilt circuits will operate in this mode.Note: All advanced implement control features will be disabled in this service mode. The kickouts, the cylinder snubbing, and the dump rate control are features of the implement control that will be disabled. However, the float control will remain enabled. If the lift control lever is placed in the FLOAT position and the implement hydraulic service mode is active, the lift linkage will immediately lower.
Table 1
Required Tools
Qty Part Number Description
1 IBM Compatible PC
1 466-6258 Communication Adapter Gp (III)
1 ET Software(1)
(1) Version ET2015C or newer
Move the machine away from other operating machines and away from personnel. Park the machine on a smooth, level surface. Lower the work tool to the ground. Turn the engine start switch to the OFF position.Reference: For additional information on use of the Caterpillar Electronic Technician (ET), refer to Troubleshooting and Testing and Adjusting, "Using Caterpillar Electronic Technician to Determine Diagnostic Codes" for the machine that is being serviced.
Illustration 1 g06044282
Location of service connector
Connect the 466-6258 Communication Adapter Gp to an available COM port on your PC and to the service connector on the machine.
Start the engine.
Open the software program for the Caterpillar Electronic Technician (ET).
Illustration 2 g02178862
Choose "Implement". Press "ENTER".
Illustration 3 g02178873
Select "Diagnostics" from the menu. Select "Diagnostic Tests". Then, select "Implement Hydraulic Service Mode".
Illustration 4 g02178876
Select the "OK" button. The machine is now in the service mode.All advanced implement control features will be disabled in this service mode. The kickouts, the cylinder snubbing, and the dump rate control are features of the implement control that will be disabled. However, the float control will remain enabled. If the lift control lever is placed in the FLOAT position and the implement hydraulic service mode is active, the lift linkage will immediately lower.
Illustration 5 g02178882
Select the Next button in order to begin. Follow the instructions that are on the screen.
The service mode will deactivate when you cancel the "Implement Hydraulic Service Mode". The service mode will deactivate when you exit the "Implement Hydraulic Service Mode" screen.