Tru Count Air Clutch Maintenance

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

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.

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

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

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

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

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

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.

Remove Sprocket from Clutch

Sprocket Removed from Clutch

Remove Phillips Screw

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

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

Dirty Clutch

Use Soft Cloth to Clean Internal Components

Remove Snap Ring Disassemble Clutch

Remove Slip Hub

Clutch Completely Disassembled Spring Stop Collar Slip Hub Drive Hub

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

Carefully Reassemble

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

Place Clutch Back in Housing

Replace Cover

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

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.

Air Filter Replacement In Cab Filter New

Applying for Replacement Parts Contact Trimble Agriculture Support for a replacement air filter assembly PN 86875. Have ready the original P/N 78870 filter assembly Sales Order number. Warranty is for replacement only.

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.

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

Additional Information Actual install instructions will help with clutch reinstallation

Questions?