SR17, SR18, SR21, SR318 and SR321 Snowblowers Caterpillar


Operation

Usage:

SR17 SBA
Note: The following procedures are for models with an auxiliary hydraulic controller.

------ WARNING! ------

Never direct the discharge toward bystanders, buildings or other property. Foreign objects or ice chunks can be thrown great distances causing personal injury or death.

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------ WARNING! ------

Serious injury or death by electrocution can result if the machine or implements are not kept a safe distance from electrical power lines.

Keep the distance at least 3 m (10 feet) plus an additional 10 mm (.4 in) for each 1,000 volts over 50,000 volts. For safety, local or state codes or jobsite operating directives, may require a greater distance.

Never swing a load over a truck cab or workers.

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NOTICE

Do not fully rack back the snowblower on the 904B Compact Wheel Loader. Damage to the discharge chute can occur.



NOTICE

For specific information on your host machine, refer to the Operation and Maintenance Manual of your host machine.


  1. Install the Snowblower onto the host machine. Refer to Operation and Maintenance Manual, "Work Tool Installation".



    Illustration 1g01113660

  1. Adjust the skid plates for the appropriate surface conditions. Properly support the Snowblower with blocks when you are adjusting the height of the skid plates. In order to adjust the height of the skid plates, remove the pin and clip. Raise the skid plate or lower the skid plate. Reinstall the pin and clip.

  1. Position the Snowblower on the cutting edge when you are removing snow from areas that are paved. Position the Snowblower on the skid plates when you are removing snow from areas that are covered with gravel. If you are removing snow from areas that are covered with gravel, adjust the height of the skid plates so that the Snowblower does not pick up gravel.

  1. Set the engine speed to HIGH IDLE.

  1. Move the machine's work tool control to the FLOAT position. Use the work tool control TILT position in order to position the Snowblower on the cutting edge or the skid plates.

Auxiliary Hydraulic Control Device


    NOTICE

    Only reverse the rotation of the auger in order to remove obstructions from the Snowblower.



    NOTICE

    Do not operate the discharge chute or the deflector while the Snowblower is operating in reverse. Damage to the Snowblower will occur

    .



    NOTICE

    Do not fully rack back the snowblower on the 904B Compact Wheel Loader. Damage to the discharge chute can occur.


    Note: Refer to the Operation and Maintenance Manual of the host machine for additional information on joystick controls and operation.




    Illustration 2g01118170

    Joystick with auxiliary hydraulic controls (A-Series SSL/MTL Standard Flow)




    Illustration 3g01125585

    Joystick with auxiliary hydraulic controls (B-Series SSL/MTL Standard Flow)




    Illustration 4g01214990

    Joystick with auxiliary hydraulic controls (904B CWL Standard Flow)

  1. Press control button (A2) on the auxiliary hydraulic control in order to run the auger for the Snowblower in a FORWARD direction. Press control button (A1) on the auxiliary hydraulic control in order to run the auger for the Snowblower in a REVERSE direction. Refer to the Operation and Maintenance Manual of the host machine for additional information on the joystick controls.



    Illustration 5g01123238

    Auxiliary electrical control switch on SSL/MTL models

  1. Press the auxiliary electrical control switch in order to supply continuous electrical power to the control device for the Snowblower. Refer to the Operation and Maintenance Manual of the host machine for additional information on the switch locations.



    Illustration 6g01215058

    Control device for the snowblower

  1. Use the switch (A) that is located on the control device for the Snowblower in order to adjust the angle of the deflector. Use the switch (B) that is located on the control device for the Snowblower in order to rotate the discharge chute.

Removal Of Obstructions From Snowblower

Note: When an obstruction prevents the auger or the impeller from operating, use the following procedure.

If the auger or the impeller become obstructed, first attempt to remove the obstruction by operating the auger in the REVERSE direction. Once the obstruction has been removed, operate the auger in the FORWARD direction.

------ WARNING! ------

Do not use an auxiliary override with this work tool. The work tool can be fully powered even if the arm bar is raised and the operator has exited the cab.

Severe injury or death could occur.

Do not exit the cab until the work tool and the host machine have been shutdown and the parking brake is engaged.

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------ WARNING! ------

Personal injury can result from hydraulic oil pressure and hot oil.

Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.

Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.

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If the obstruction is not removable by operating the auger in the REVERSE direction, refer to the following procedures for removing obstructions:

Procedure To Remove Obstructions For A-Series Standard Flow, B-Series Standard Flow, and 904B CWL Standard Flow Machines

  1. Fully release the hydraulic system pressure from the work tool. Release the hydraulic system pressure with the following procedures:

    1. Start the engine and run the engine for at least 15 seconds in order to recharge the accumulator.

    1. Turn the engine start switch to the OFF position.

    1. Do not raise the armrest, if equipped.

    1. Immediately, turn the engine start switch to the ON position. Disengage the parking brake.

    1. Move both of the joystick controls through all of the operating positions in order to release the hydraulic pressure in the work tool system and the hydrostatic system.

    1. Press each side of the auxiliary hydraulic control switch (A1) and (A2) for three seconds. Keep the joystick control in the NEUTRAL position while you press the auxiliary hydraulic control switches.

    1. Press the bottom of the auxiliary electrical control switch for the SSL/MTL machines in order to supply electrical power to the work tool.

    1. Press each side of the control device for the snowblower (A) and (B) for three seconds.

    1. Press the top of the auxiliary electrical control switch for the SSL/MTL machines in order to discontinue electrical power to the work tool.

    1. Press each side of the auxiliary hydraulic control switch (A1) and (A2) again for three seconds. Keep the joystick control in the NEUTRAL position while you press the auxiliary hydraulic control switches.

    1. Engage the parking brake.

    1. Turn the engine start switch to the OFF position.

      The pressure in the hydraulic system has now been released.

  1. Raise the armrest, if equipped. Exit the machine.

  1. Ensure that the parking brake is engaged before exiting the machine.

  1. Disconnect all of the quick connect couplers between the host machine and the snowblower.

  1. Connect the male quick connect coupler and the female quick connect coupler on the hoses together.

    This will prevent any pressure differential from causing any unexpected hydraulic movement.

  1. Remove the obstruction from the auger or from the impeller.

  1. Disconnect the male quick connect coupler and the female quick connect coupler on the hoses.

  1. Connect all of the quick connect couplers between the host machine and the snowblower.

  1. Return to the machine.

  1. Lower the armrest, if equipped.

  1. Return to normal operation of the host machine and the snowblower.

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