SECTION IV

MAINTENANCE

4-1 MAINTENANCE CHECK LIST

Perform scheduled maintenance as outlined below. Lower machine to ground, turn off tractor, and set parking brake before doing maintenance inspections or work. All bolts should be torqued as recommend- ed in torque chart unless otherwise indicated.

WARNING

THE LOADER CAN FALL FROM HYDRAULIC SYSTEM FAILURE. TO AVOID SERIOUS INJURY OR DEATH, SECURELY SUPPORT LOADER BEFORE WORKING UNDERNEATH.

BEFORE EACH USE

1.Inspect hydraulic lines and fittings for wear or leaks. Repair or replace if needed.

2.Inspect all pivot pins for wear. Make certain clevis pins and cotter pins are installed to retain each pivot pin.

3.Check all bolts for tightness.

4.Perform BEFORE EACH USE lubrication per paragraph 4-2.

5.During operation, listen for abnormal sounds which might indicate loose parts or other damage.

AFTER EACH USE

1.Clean all debris from machine, especially cylinder rods and affixed safety decals. Replace any miss- ing or illegible decals.

2.Inspect loader for worn or damaged components. Repair or replace before next use. Any replace- ment components installed during repair shall include the components current safety decals specified by the manufacturer to be affixed to the component.

3.Store loader in a dry place.

Figure 4-1 Lubrication Points

1

3

4-2 LUBRICATION (Figure 4-1)

NOTE

The multi-purpose grease referenced in this section is an NLGI grade 2 type grease.

BEFORE EACH USE

1.Boom Pivot Pins - Apply multi-purpose grease to each fitting (1 fitting each side)

2.Boom Cylinders - Apply multi-purpose grease to each fitting (2 fittings each cylinder)

3.Bucket Cylinders - Apply multi-purpose grease to each fitting (2 fittings each cylinder)

4.Bucket Pivot Pin - Apply multi-purpose grease to each fitting (1 fitting each side)

5.Hydraulic Oil - Cycle boom and bucket cylinders 2 or 3 times before each use, then check hydraulic oil level in tractor reservoir.

CAUTION

USE A PIECE OF CARDBOARD OR WOOD RATHER THAN HANDS AND WEAR EYE PROTECTION WHEN SEARCHING FOR HYDRAULIC LEAKS. ESCAPING HYDRAULIC OIL UNDER PRESSURE CAN PENETRATE SKIN. IF OIL IS INJECTED INTO SKIN, IT MUST BE SURGICALLY REMOVED WITHIN A FEW HOURS BY A DOCTOR OR GAN- GRENE MAY RESULT.

4-3 HYDRAULIC SYSTEM PRESSURE REQUIREMENTS

A tractor hydraulic system pressure setting of 2500 psi is recommended for maximum efficiency and service. Do not exceed 3000 psi as this will dam- age components possibly causing serious injury. The Bush Hog control valve is pre-set at the factory and should not be adjusted.

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5

Check Tractor

Reservoir4

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Bush Hog 2347 QT Section Maintenance, Maintenance Check List, Hydraulic System Pressure Requirements, Before Each USE