Broderson RT-400-A, Operation And Maintenance Manual

Page: 53 / 93

3-6
RT-400 MAINTENANCE CHECKLIST
Refer to the component maintenance section of this manual and to the engine operator's manu-
al 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. Clean radiator fins and check coolant level.
5. Check tire pressure and condition. Inflate tires to 100 PSI (690kPa).
6. Check fluid levels in engine, transmission, & hydraulic tank.
7. Check air filter restriction indicator.
8. Inspect air intake and exhaust systems for cracks, leaks, and loose bolts.
9. Change engine oil and filter after first 50 hours. Replace at intervals specified by engine
manufacturer thereafter.
10. Change the hydraulic filter after first 100 hours and at 500 hours thereafter.
11. Check rotation gear and pinion fit, and gear train backlash.
12. Check rotation bearing and gearbox bolt tightness (1200-1300 foot-pounds for bolt or 900-
1000 foot-pounds for nut).
13. Check axle mounting bolts 682 foot-pounds.
14. Torque wheel mounting nuts. 475 foot-pounds (645Nm) torque.
15. Check for loose pins or pin retainers.
16. Check brake lines and steering lines for damage.
17. Inspect sheaves and hooks for damage or excessive wear.
18. Visually inspect welds on boom, turret, and outriggers.
19. Perform a load test, as described on page 3-____.
20. Check operation of outrigger warning light, as described on page 2-17.
21. Check horn, outrigger alarm, and backup alarm.
22. Change transmission fluid and filter after the first 20 hours. Change filter, with the fluid
above 100°F (38°C), every 200 hours or 6 months, whichever is sooner.
23. Measure extension and retraction chain sag and adjust if necessary. See page 3-39.
250-HOUR OR 3-MONTH INTERVAL:
1. 50-hour maintenance.
2. 50 and 250-hour lubrication.
3. Clean engine and battery.
4. Check engine mounts and radiator mounts.
5. Adjust and lubricate boom chains and chain sheaves.
6. Inspect all bolts on the machine for tightness.
7. Visually inspect all welds for cracks.
8. Check hydraulic fittings and centerpost for leaks.
9. Perform all maintenance required by engine manual.