PLATE 5104602 - Caterpillar

Boom Release
Slowly move the boom upward until the boom is completely inward.
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Pull the boom lock lever toward the front of the machine in order to disengage the boom lock. This will allow movement of the backhoe for operation.Backhoe Controls (28)
Refer to Operation and Maintenance Manual, "Controls " for more information.Quick Coupler (29, 30) (If Equipped)
Two electrical switches are located inside the cab. Use of both switches is required in order to release the work tool. Switch (29) is a two-position switch used to unlock the work tool rear pin locking mechanism. Switch (30) is a momentary switch used to unlock the work tool front pin locking mechanism. Switch (30) will function only when switch (29) is in the unlock position.For more information, refer to Operation and Maintenance Manual, "Quick Coupler Operation (Hydraulic Pin Grabber Quick Coupler)".Fan Switch (31)
Heater Fan Switch - This switch controls the three-speed blower fan motor.Press the bottom of the switch for the LOW position of the fan.Press the switch to the middle position for the MEDIUM fan speed.Press the top of the switch for the HIGH fan speed.Variable Temperature Control (32)
Heating Variable - Turn the knob between COOL (left) and WARM (right). Heating and Cooling Control (33)
Heating - Press the top of the switch to the ON position. Turn the blower fan switch control to the desired speed (LOW, MEDIUM, or HIGH). Adjust the temperature control knob for the desired temperature. Press the switch to the middle position for the blower OFF position.
Cooling (If Equipped) - Press the bottom of the switch to the air conditioning ON position. Turn the blower fan switch control to the desired speed (LOW, MEDIUM, or HIGH). Adjust the temperature control knob for the desired temperature. Note: In order to provide maximum cooling when you are using the cooling system, close all unused vents.Pressurizing - When heating or cooling is not desired, pressure inside the cab will help keep dust out.To produce the volume of air that is needed to keep dust out, set the blower fan switch control to LOW, to MEDIUM, or to HIGH. Adjust the temperature control knob to the desired temperature.Defogging - Use the cooling system to remove moisture from the air in the cab. This will prevent moisture from forming on the windows. Press the switch to the air conditioning ON position. Turn the blower fan switch control to the desired speed (LOW, MEDIUM, or HIGH). Adjust both control knobs until the moisture level is lowered and the windows are free of moisture.VENTILATION - When heating, cooling, or defogging is not desired, the system can be used in order to provide ventilation. Turn the blower fan switch to the desired speed (LOW, MEDIUM, or HIGH). Adjust the temperature control knob to the desired temperature.Cab Door
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Cab Doors - Pull the door latch in order to open the door. Open the door all the way to the fully open position. The door will remain in this position. Both doors operate the same way.The doors