American-Lincoln 7760 Operator's Manual download pdf (Page 37)

1-36 AMERICAN-LINCOLN

7760

COVER

SPRING

O-RING

FILTER

ELEMENT

FILTER

BODY

P-5091/9907

FILL

HYDRAULIC

RESERVOI

P5089

P-5089 FIGURE 26

P-5091 FIGURE 27

GENERAL MACHINE MAINTENANCE

HYDRAULICS

HOW TO FILL THE HYDRAULIC RESERVOIR

1. Access to the hydraulic reservoir is located

beneath the driver’s seat.

2. Open the hydraulic reservoir breather filter cap.

3. Remove any debris that is in the breather filter

cap screen.

4. Fill the reservoir until the fluid is at the “FULL” line

on the hydraulic fluid sight gauge. The sight

gauge is located on the front of the hydraulic

reservoir.

5. Close the hydraulic reservoir breather filler cap.

6. Put the driver’s seat back into position.

HOW TO CLEAN THE HYDRAULIC SYSTEM

1. Put a drop cloth on the floor.

2. Drive the machine onto the drop cloth.

3. Set the parking brake.

4. Tip the seat to the side.

5. Put a container under the reservoir drain to catch the reservoir fluid.

6. Remove the drain plug. The reservoir fluid will drain. Do not use the drained reservoir fluid to refill the

hydraulic reservoir. Dispose of the used fluid.

7. Flush the interior of the hydraulic reservoir with clean fluid.

8. Put the reservoir plug, removed in step six back in the hydraulic tank drain and tighten. A pipe thread sealer

is required on the plug.

9. Open the breather filter cap.

10. Fill the reservoir with new FORD type “F” automotive transmission fluid. The capacity of the tank is 10

gallons. Fill to the “FULL” line on hydraulic fluid sight gauge.

11. Close the breather filter cap.

12. Tip the seat back to its original position.

HOW TO REPLACE THE RETURN FILTER

ELEMENT

1. Replace the return filter after 250 hours of

machine run time.

2. Unscrew the fasteners from the filter assembly

cover and retain.

3. Remove the cover and the compression spring

and retain.

4. Discard old filter element.

5. Position new filter element inside the filter body.

6. Put the compression spring in position. Wipe the

cover magnet free of any metal filings or debris.

7. Place O-ring (Moisten with clean hydraulic fluid)

and cover into position.

8. Reattach fasteners to filter cover.

9. Wipe clean any hydraulic reservoir fluid spills.

The fluid can damage painted surfaces of the

machine.

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American-Lincoln 7760 Operator's Manual Page 37

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