For Case 621C, 721C Loaders, this reference brings together the listed repair manual material. Start with General and follow the relevant document section for the task.
What’s Covered Inside
General
Engines
Electrical
Steering
Power Train
Brakes
Electric Schematics
Hydraulic Schematics
Manual Extract Transmission Filter Restriction Switch Check
Do the following procedures to check the transmission filter restriction indicator light and the transmission filter restriction switch.
1. Press the program/reset switch to program.
2. Press the up/down count switch to up count until the display reads 026. The transmission filter restriction indicator light will flash intermittently.
3. Place the program/reset switch in the OFF (center) position.
4. The Information Center will display 00, when the machine is being checked, if the transmission filter restriction switch is not activated. If the transmission filter restriction switch is activated, the Information Center will display 01 while the transmission filter restriction switch is being checked. The transmission filter restriction indicator light will flash intermittently on the Information Center.
Use publication 7-12113 (Dec 2001) with the 621C, 721C model details to select the appropriate documentation. Refer to General within its stated document and equipment scope.










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