DIGGER DERRICK
2-3
Digger Derrick Terex South Dakota, Inc. 463280 - 9/14
MAINTENANCE GUIDELINES
FREQUENT AND PERIODIC INSPECTION INTERVALS
DAILY
1. Check controls at platform and lower controls for proper operation.
2. Inspect fall protection equipment and attachments.
3. Inspect visual and audible devices.
4. Check condition, cleanliness, and dryness of fiberglass components.
5. Visually check for missing or loose covers and guards.
6. Check for missing and illegible operational, warning, or instructional markings.
7. Visually check oil level in hydraulic reservoir.
8. Visually inspect for leaks in hydraulic system.
9. Check all areas for evidence of physical damage.
10. Visually check all cylinders for leaks.
11. Visually inspect all fasteners for tightness.
12. Visual inspection of all structural members; booms, pins, auger, accessories, outriggers, subframe, and
attachments, for cracks and permanent deformation.
13. Check for rotational obstructions.
14. Visual inspection of all electrical wires.
15. Inspect winch line, hook, and slings.
16. Inspect rollers and sheaves for flat spots and free movement.
17. Visually inspect Auger Roll Up Cable.
18. Inspect for damaged or missing auger teeth.
19. Operational test of all functions.
90 DAYS (360 HOURS)
1. Replace return filter. (First 90 days)
2. Lubricate all points per lubrication chart recommendations.
3. Repair or replace items found to be worn or damaged.
4. Daily Inspections.
180 DAYS (720 HOURS)
1. Check tightness of rotation bearing bolts, turntable to bearing, and bearing to pedestal for proper torque.
2. Inspect all exposed hoses.
3. Clean hydraulic tank breather.
4. Daily and 90 days (360 hours) inspections.
12 MONTHS (1,050 HOURS)
1. Inspect and lubricate PTO drive shaft to pump.
2. Take samples of hydraulic oil and test.
3. Perform cylinder drift test.
4. Perform structural and critical weld inspection.
5. Replace return filter
6. Perform dielectric test.
7. Check all hydraulic pressure adjustments for proper setting.
8. Daily, 90 days (360 hours), and 180 days (720 hours) inspections.