1. Tru Count Air Clutch Maintenance

2. Air Clutch System Enemies
Dust and Dirt
Water
Maintenance is critical to ensure proper operation

3. Air Clutch Lubrication
Clutches are self-lubricating and require little maintenance.
Lubricate the air cylinders as required every 75–100 hours of operation and at the end of the season to keep the pistons lubricated.
Must use dry silicone included in the kit—using penetrating oil, grease, brake cleaner, and so on, voids the warranty and reduces clutch performance.
Any solvents used will only work temporarily and then dry out the clutch. Heavier oils may gum up clutches.

4. Air Clutch Lubrication
Symptoms requiring lubrication:
Clutch not clutching (continuous planting)
Clutch slow to resume planting after being shut off
Check Air Valve Module Box also if clutches are not engaging
3 Possible Scenarios
After 75 Hours
After end of Season
Complete Clutch Cleaning
Clutch Air Cylinder

5. Maintenance After 75 Hours (If needed)
Remove the Phillips-head screw from clutch housing
Spray in All Purpose Silicone Lubricant for several Seconds
Rotate Clutches with seed shaft to cover clutch
This is dependent on Field Conditions and Air Clutch Engagement cycles

6. End of Season Maintenance
Remove air cylinder and phillips screw and rotate clutch downwards
Use low pressure air to blow out any dust

7. End of Season Maintenance
Use silicone
Rotate shaft
Helps free up build up and protect from oxidation
Reassemble
Before beginning season ~ spray in silocone

8. General Air Cylinder Maintenance
Oil cylinders at beginning of season
Place one drop of oil in each air cylinder
Activate cylinder
Don’t use silicone ~ only oil
This doesn’t lubricate clutch
WD 40 or similar products may degrade seal in cylinder
p/n 68358

9. Complete Air Clutch Cleaning
Disassemble and clean clutch every two to three years or if clutch system becomes contaminated.
Step one is to remove the clutches from the planter so they can be serviced.
Make sure when reassembling planter drive, all lock collars and spacers are mounted correctly.

10. Remove Sprocket from Clutch

11. Sprocket Removed from Clutch

12. Remove Phillips Screw

13. Remove Clutch Lid
Insert small, flat screwdriver between lid and enclosure. Pry up lid, forcing it to turn counterclockwise and remove from enclosure.

14. Use Soft Cloth to Clean Internal Components
Clean these components with cleaner (WD40, Silicone, lightweight oil) as long as you reapply with Silicone
Best done after season
Less risk of attracting dirt

15. Dirty Clutch

16. Use Soft Cloth to Clean Internal Components

17. Remove Snap Ring Disassemble Clutch

18. Remove Slip Hub

19. Clutch Completely Disassembled
Spring
Stop Collar
Slip Hub
Drive Hub

20. Clean All Components With Soft Cloth
Drive Hub
Cover
Slip hub
Sprocket
Spring
Stop Collar

21. Carefully Reassemble

22. Reattach Snap Ring
Stop Collar must be oriented same as during disassembly
Ramps go in same direction so they will stop
Place snap ring with smooth surface down

23. Place Clutch Back in Housing

24. Replace Cover

25. Reattach Sprocket Careful not to crack housing
Torque no more than 15lbs

26. Air Compressor Maintenance
Compressor is moisture- and splash-resistant, but not waterproof.
Remove dirt build-up from fins.
Replace or clean the filter element on a regular basis.
Remove compressor assembly at the end of the season and keep it in a dry location.
Keep pressure washers away from the air compressor and air intake filter.

27. Air Filter Replacement
In Cab Filter
New

28. Applying for Replacement Parts
Contact Trimble Agriculture Support for a replacement air filter assembly PN
Have ready the original P/N filter assembly Sales Order number.
Warranty is for replacement only.

29. Air Tank Maintenance
Drain the tank on a regular basis with draincock on bottom of tank.
Drain the tank before winter storage
Always close drain after draining moisture.

30. Tru Count Recommended Lubricants
See TruCount Air Clutch Maintenance Support Note for more information.

31. Additional Information
Actual install instructions will help with clutch reinstallation

32. Questions?