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6 - Maintenance
Off-Season Storage
General Info
To preserve the sprayer intact and to protect its components, the following off-season storage program is carried out.
Before Storage
When the spraying season is over, you should devote some extra time to the sprayer.
If chemical residues are left over in the sprayer for longer periods, it may reduce the life of its individual components.
1. Clean the sprayer completely - inside and outside - as described under "Cleaning" on page 132. Make sure that all
valves, hoses and auxiliary equipment have been cleaned with a cleaning agent and flushed with clean water
afterwards, so that no chemical residues are left in the sprayer.
2. Replace any damaged seals and repair any 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 air comes out of all nozzles. The rinsing tank is
also drained.
4. Protection against frost:
First complete the cleaning inside and outside the sprayer.
Pour approximately 50 litres of antifreeze mixture (e.g glycol and water), into the main tank. Include any remaining
water in hidden places in the sprayer circuit in the mixture.
Depending on your winter temperatures, use the recommended mixture ratio in the table below:
Temperature
(°C)
-7
-12
-20
-31
-40
Engage the pump and operate all valves and functions, operating unit, chemical inductor etc., allowing the antifreeze
mixture to be distributed around the entire circuit without leaving any unmixed water in hidden places.
Unmixed water will freeze and possibly damage the sprayer's components!
Open the operating unit main valve ON/OFF and distribution valves, so that the antifreeze is sprayed through the
nozzles as well. The antifreeze will also prevent O-rings, seals, diaphragms etc. from drying out.
Empty filters and boom pipes. Remember to unscrew the end plugs, as unmixed water can build up in blind pipe ends
causing a risk of a broken end plug or pipe, when the boom pipes are pressurized at the next spray job.
5. Remove the glycerine-filled pressure gauges and store them frost-free in a vertical position.
6. Lubricate all lubricating points according to the lubricating intervals.
7. When the sprayer is dry, remove rust from scratches or damage in the paint, if any, and touch up the paint.
8. Apply a thin layer of anti-corrosion oil (e.g. SHELL ENSIS FLUID, CASTROL RUSTILO or similar) on all metal parts. Avoid
oil on rubber parts, hoses and tyres.
9. Fold the boom into transport position and relieve pressure from all hydraulic functions.
10. All electric plugs and sockets are to be stored in a dry plastic bag to protect them against moisture, dirt and corrosion.
11. Remove the control boxes and computer display from the tractor. Store them dry and clean (indoor) in a non-
condensing environment.
12. Wipe hydraulic snap couplers clean and fit the dust caps.
13. Apply grease to all hydraulic ram piston rods, which are not fully retracted in the housing, to protect against corrosion.
14. Drain air brake tank for condensed water
188
Water volume
Glycol volume
(litres)
(litres)
10
2.5
10
4.3
10
6.7
10
10
10
12.2
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