Maintenance Check List, Lubrication, Hours

SECTION IV

MAINTENANCE

4-1 MAINTENANCE CHECK LIST

Perform scheduled maintenance as outlined below. Lower implement to ground, turn off tractor, and set parking brake before doing maintenance inspections or work. Some checks may require raising machine

off ground and supporting with blocks. All bolts should be torqued as indicated in torque chart unless otherwise indicated.

WARNING

THE CUTTER CAN FALL FROM

HYDRAULIC SYSTEM FAILURE. TO

AVOID SERIOUS INJURY OR DEATH,

SECURELY SUPPORT CUTTER BEFORE

WORKING UNDERNEATH.

BEFORE EACH USE.

1.Check tractor tire air pressure. Refer to tractor operator’s manual. If mower is equipped with pneumatic tires, tire pressure should be 40 psi.

2.Check blades and spindles to be sure that no foreign objects such as wire or steel strapping bands are wrapped around them.

3.Check blade bolts for tightness. Tighten blade bolts to 65 ft./lbs.

4.Inspect blades for wear. Replace if necessary per paragraph 4-5. Use only genuine Bush Hog replacement parts. If it is necessary to sharpen the blades, remove the blades from the spindles before sharpening. DO NOT sharpen blades while still attached to mower.

5.Make certain all shields are in place and in good condition. Repair or replace any missing or damaged shields.

6.Inspect wheel(s) for wear, damage or foreign objects. Repair or replace if necessary.

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

Figure 4-1A	(5) Before Each Use

(4) Before Each Use

(7) 40 Hours		(3)	Before Each Use

8.During operation, listen for abnormal sounds which might indicate loose parts, damaged bearings,

or other damage. Correct any deficiency before con- tinuing operation.

AFTER EACH USE

1.Clean all debris from machine especially under- side of deck, underneath belt shield and off safety decals. Replace any missing or illegible decals.

2.Inspect cutter for worn or damaged compo- nents. Repair or replace before next use. Any replacement components installed during repair shall include the components’ current safety decals speci-

fied by the manufacturer to be affixed to the compo- nent.

3. Store cutter in a dry place.

40HOURS

1.Check belts for proper tension. Refer to para- graph 4-3.

4-2 LUBRICATION

(Figures 4-1A, & B)

NOTE

The multi-purpose grease referenced in this secftion is an NLGI Grade 2 type grease.

BEFORE EACH USE

1.Driveline Universal Joints - Apply multi-purpose grease with grease gun.

2.Driveline Guard - Apply 2-3 shots of multi-pur- pose grease with grease gun to plastic fitting.

3.Wheels - Apply multi-purpose grease wiith grease gun.

4.Caster Pivot - Apply multi-purpose grease with

grease gun.

5. Input Gearbox - Add EP80W-90 gear oil, if nec-

essary, to bring oil level to check plug.Allow time for

the oil to seep through the top bearing to the bottom bearing before checking the oil level.

20HOURS

6.Driveline - Disconnect PTO driveline, pull the

two sections apart, thoroughly clean old grease from tubes and apply thin coat of multi-purpose grease to outside of inner (male) section. Reassemble sec- tions and install. Pull each section to be sure drive-

Figure 4-1B	(5) 20 Hours

(2) Before Each Use

(1) Before Each Use