Sensor Location and Description
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| Illustration 1 | g01464090 |
Top view of 797B | |
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| Illustration 2 | g01466851 |
Right inside view of 797B frame | |
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| Illustration 3 | g01466867 |
Left inside view of 797B frame | |
(1) Fluid level switches
Nine fluid level sensors are used on the Fast Fill Service Group. The sensors are located on the fluid tanks throughout the machine. The sensors detect a full fluid level. This will cause the indicator lamps to illuminate on the control panel.
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| Illustration 4 | g01467148 |
Side view of 797B hydraulic oil tank (2) Switch for the hydraulic oil at operating temperature (3) Switch for the hydraulic oil below operating temperature (4) Hydraulic oil tank | |
The hydraulic oil level switches (2) and (3) are located in hydraulic tank (4).
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| Illustration 5 | g01467330 |
Side view of 797B surge tank for the coolant (5) Surge tank (6) Switch for the coolant level | |
When you are facing the front of the machine, the fluid level switch (6) for the coolant is located in surge tank (5) on the right side of the surge tank.
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| Illustration 6 | g01467367 |
Side view of 797B surge tank for the aftercooler coolant (7) Surge tank (8) Switch for the level of the aftercooler coolant | |
When you are facing the front of the machine, the fluid level switch (8) for the aftercooler coolant is located in surge tank (7) on the left side of the surge tank.
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| Illustration 7 | g01467407 |
Side view of the 797B steering tank (9) Steering oil level switch (10) Steering tank | |
The fluid level switch (9) for the steering oil is located in steering tank (10).
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| Illustration 8 | g01469815 |
Side view of 797B oil pan for the front engine (12) Front engine oil pan (13) Switch for the front engine oil level | |
The fluid level switch (13) for the front engine oil level is located in the front engine oil pan (12).
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| Illustration 9 | g01469834 |
Rear view of 797B oil pan for the rear engine (14) Rear engine oil pan (15) Switch for the rear engine oil level | |
The fluid level switch (15) for the rear engine oil level is located in the rear engine oil pan (14).
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| Illustration 10 | g01469844 |
Side angled view of 797B torque converter case (17) Torque converter case (18) Switch for the torque converter oil at operating temperature (19) Switch for the torque converter oil below operating temperature | |
Oil level switch (18) and oil level switch (19) are for the torque converter. The two sensors are located in torque converter case (19) .
Note: The torque converter serves as the reservoir for the torque converter and the transmission.
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| Illustration 11 | g01459805 |
Control box for the fast fill service group (20) Control box (21) One of nine indicator lamps | |
The Control Box for the Fast Fill Service Group (20) has nine indicator lamps (21). Indicator lamps (21) show the operator that the fluid level is full for the various reservoirs.
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| Illustration 12 | g01469862 |
Control box for the lamps in the fast fill service group (22) Indicator lamp for the hydraulic fluid level below operating temperature (23) Indicator lamp for the hydraulic fluid level at operating temperature (24) Full level indicator lamp for the engine coolant (25) Indicator lamp for the torque converter oil below operating temperature (26) Indicator lamp for the torque converter oil at operating temperature (27) Full level indicator lamp for the aftercooler coolant (28) Full level indicator lamp for the steering oil (engine on) (29) Full level indicator lamp for the front engine oil (engine stopped) (30) Full level indicator lamp for the rear engine oil (engine stopped) (31) Toggle Switch | |
Toggle switch (31) controls the power to the fast fill service group. Toggle switch (31) also operates the lamp test function for the indicator lamps that are shown in Illustration 12.
Note: There is no indicator lamp in order to show a full fuel level. The level sending unit for the fuel is for the dash gauge. Air is released through the vent while the tank is filled. When the tank reaches the full level the check valve inside the fuel tank closes. This creates pressure within the fuel tank. A piston that is operated by a diaphragm starts to shut off the fuel flow when the fuel tank starts to get full. The line pressure brings the nozzle to the OFF position.