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6 - Maintenance
Off-season storage
Off-season storage program
When the spraying season is over, you should devote some extra time to the sprayer. If chemical residue is left over in the
sprayer for longer periods, it can reduce the life of the individual components. To preserve the sprayer intact and to protect
the components, carry out following off-season storage program.
1. Clean the sprayer completely - inside and outside - as described under "D: Full internal cleaning (Soak wash)" on
page 60. Make sure that all valves, hoses and auxiliary equipment have been cleaned with detergent and flushed with
clean water afterwards, so no chemical residue is left in the sprayer.
2. Replace possible damaged seals and repair possible leaks.
3. Empty the sprayer completely and let the pump work for a few minutes. Operate all valves and handles to drain as
much water off the spraying circuit as possible. Let the pump run until all nozzles stop spraying. Remember to drain
the flush tank also.
4. Pour appr. 13 gal. (50 liters) anti-freeze mixture consisting of 1/3 automotive anti-freeze and 2/3 water into the tank.
5. Engage the pump and operate all valves and functions, operating unit, chemical inductor etc. allowing the anti-freeze
mixture to be distributed around the entire circuit. Open the operating unit main on/off valve and distribution valves
so the anti-freeze is sprayed through the nozzles as well. The anti-freeze will also prevent O-rings, seals, diaphragms
etc. from drying out.
6. Lubricate all lubricating points according to the lubricating scheme - regardless of intervals stated.
7. When the sprayer is dry, remove rust from possible scratches or damages in the paint and touch up the paint.
8. Remove the glycerin-filled pressure gauges and store them frost free in vertical position.
9. Apply a thin layer of anti-corrosion oil (e.g. SHELL ENSIS FLUID, CASTROL RUSTILLO or similar) on all metal parts. Avoid
oil on rubber parts, hoses and tires.
10. Fold the boom in transport position and relieve pressure from all hydraulic functions.
11. Bleed any condensation from the air compressor (See "50 hours service - Compressed air tank" on page 65).
12. Drain excess water from the Filling filter hose and filter housing to prevent damage from freezing (See ????????).
13. All electric plugs and sockets are to be stored in a dry plastic bag to protect them against damp, dirt and corrosion.
14. Remove the control boxes and computer display from the tractor, and store them dry and clean (in-house). A non-
condensing environment is recommended.
15. Apply grease on all hydraulic ram piston rods which are not fully retracted in the barrel to protect against corrosion.
16. Chock up the wheels, to prevent moisture damage and deformation of the tires. Tire blacking can be applied to the
tire walls to preserve the rubber.
17. To protect against dust, the sprayer can be covered by a tarpaulin. Ensure ventilation to prevent condensation.
Preparing the sprayer for use after storage
After a storage period, the sprayer should be prepared for the next season the following way:
1. Remove the cover.
2. Remove the support from the wheel axle and adjust the tire pressure.
3. Wipe off the grease from hydraulic ram piston rods.
4. Fit the pressure gauges again. Seal with Teflon tape.
5. Connect the sprayer to the tractor including hydraulics and electrics.
6. Check all hydraulic and electric functions.
7. Empty the tank of remaining anti-freeze.
8. Rinse the entire liquid circuit on the sprayer with clean water.
9. Fill with clean water and check all functions.
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