LIGHTING GP-FLOOD 1611021 - Caterpillar

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(5) Auger control
Turn the auger control to the ON position.
In the stalled position, damage to the auger or damage to the auger hydraulic system can occur if the auger is operated for more than 10 seconds. Do not operate the auger continuously for more than 10 seconds when the auger is locked in the stalled position.
Observe the pressure gauge at pressure tap (24). The reading on the pressure gauge will rise.Note: Before you make any adjustments, practice several times watching the pressure gauge and feeling the hose. The hose should get rigid in your hand. This will ensure that the shift point is set correctly.
When the pressure gauge at pressure tap (24) reads 24100 kPa (3500 psi), the hose in your hand should become rigid. When the hose gets rigid, piston motor (auger) is shifting to the maximum angle.
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(25) Adjustment screw for the shift point of the piston motor (auger)
If the hose gets rigid at a lower or at a higher pressure, adjust the shift point for the piston motor (auger). Turning adjustment screw (25) clockwise lowers the shift point. Turning adjustment screw (25) counterclockwise raises the shift point.
The shift point is critical to the performance of the auger. As material fills the scraper bowl the material starts resisting the auger from turning. Then, the piston motor (auger) shifts to low speed and high torque. This will allow the upper part of the scraper bowl to be filled with material. If the material is loose the auger may not shift into low speed and high torque.Flushing Procedure for the Auger Hydraulic System
Contamination to a closed loop hydraulic system can cause serious damage to the hydraulic motor and to the hydraulic pump.In order to prevent damage to the hydraulic motor and to the hydraulic pump, perform the flushing procedure whenever any hydraulic oil line or any hydraulic connections have been opened.
Refer to the "Set Up Procedures".
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(26) Return line (27) Flushing port (28) Pressure line (29) Flushing port (30) Flushing port (31) Motor case drain line
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(26) Return line (32) Flushing port
Disconnect the wiring harness from the pump controls in order to keep the piston pump (auger) from inadvertently activating the piston pump (auger) during the flushing procedure.
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 attachments have been lowered, 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.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500,