Broderson IC-20-1J, Operation And Maintenance Manual

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3-5
IC-20 MAINTENANCE CHECKLIST
Refer to the component maintenance section of this manual and to the engine operator's
manual for complete instructions.
50 HOUR INTERVAL:
1. 50 hour lubrication as shown on lube schedule.
2. Inspect wire rope thoroughly.
3. Inspect for physical damage and leaks.
4. Check tire pressure and condition (145 psi (1000 kPa)).
5. Clean radiator fins.
6. Change engine oil and filter after first 50 hours and at 250 hours thereafter.
7. Change the hydraulic filters after the first 100 hrs. and at 500 hrs. thereafter.
8. Check rotation cylinders.
9. Check rotation bearing bolt tightness.
10. Check axle mounting bolts and pins.
11. Torque wheel mounting nuts. (60 ft. lbs. (80 N-m) front, 200 ft. lbs. (270 N-m) rear)
12. Check for loose pins or pin retainers.
13. Check steering lines for damage.
14. Inspect sheaves and hooks for damage or excessive wear.
15. Visually inspect welds on boom, turret, and outriggers.
16. Clean air cleaner inlet, dustcap, and dust cup.
250 HOUR INTERVAL:
1. 50 hour maintenance.
2. 50 and 250 hour lubrication.
3. Change engine oil and filter.
4. Check tension of fan and alternator belts.
5. Clean battery.
6. Inspect all bolts for tightness.
7. Visually inspect all welds for cracks.
8. Clean or change air filter (every 100 hours if used in dusty conditions).
9. Check hydraulic fittings for leaks.
10. Inspect air intake system for cracks and leaks.
11. Check brake cable adjustment.
12. Check engine and radiator mounts.
500 HOUR INTERVAL:
1. 50 and 250 hour maintenance.
2. 50, 250 and 500 hour lubrication.
3. Change fuel filter element.
4. Check antifreeze for protection level and cleanliness.
5. Inspect engine fan and belt.
6. Clean crankcase vent.
7. Adjust engine valve clearance per engine manual.
8. Change hydraulic filter elements and inspect oil from elements for water or
excessive contamination.
9. Check condition of all operational and warning placards.
10. Torque mounting bolts on rotation bearing and gearbox, winch and axles.
11. Inspect boom sections for signs of overload, excessive wear, or other damage.
12. Replace air filter element.
13. Check water pump for leaks.
14. Check fuel lines for leaks.
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