Nova Support

⚠️ Before checking:
1- Put the machine in a safe position.
2- Stop the tractor if needed.
3- Stay clear of rotating parts.
Make the area quiet for valve sound tests.

Is there no pressure at all, or is there pressure but low?

• No pressure at all
• Pressure but low

Is there enough liquid in the tank?

• Yes
• No

💡 Add enough liquid and try again. At low level the pump sucks air and pressure never builds.

Is the suction valve in the correct position? (It must draw from the tank)

• Yes
• No / Not sure

💡 Set the 3-way suction valve to draw from the tank.
In the wrong position the pump can't pull liquid and no pressure builds.

Check that these cables are fully seated and intact:
1- Power cable
2- Burndy connector
3- GPS cable
All connected and solid?

• Yes, all connected
• No

💡 Reseat loose or unplugged cables. A loose cable blocks pressure and valve control.

⚠️ Open the following:
1- Main valve
2- All section valves (1-5)

1- In Manual Mode give pressure UP / DOWN commands (+/− switch).
2- Listen to the GREY rate valve.
Do you hear an electric motor sound from the valve?

• Yes
• No sound

💡 Likely issue: rate valve cable, valve motor, junction box, Burndy connector or the Nova output should be checked.

1- Switch the Main valve OPEN / CLOSED (main switch).
2- Listen to the main valve.
Do you hear an electric motor sound?

• Yes
• No sound

💡 Likely issue: main valve cable, valve motor, junction box, Burndy connector or the Nova output should be checked.

1- Switch section valves ON / OFF one by one (keys 1-5).
2- Listen to each section valve.
Does every valve make an electric motor sound?

• Yes, all of them
• Some are silent
• None make a sound

💡 Likely issue: the silent section valve's cable, motor, junction box or Nova output should be checked.

💡 Likely issue: common supply, fuse, junction box, Burndy connector or Nova output should be checked.

1/4 — Is the SUCTION filter clean? (the big filter near the pump)

• Yes, clean
• No / Not sure

💡 Clean the suction filter. If clogged, the pump is starved and pressure drops or never builds.

2/4 — Is the filter on the electronic valve set clean?

• Yes, clean
• No / Not sure

💡 Clean the filter on the valve set. Clogging lowers pressure.

3/4 — Are the line filters clean?

• Yes, clean
• No / Not sure

💡 Clean the line filters. A clogged line filter lowers pressure.

4/4 — Are the nozzle filters clean?

• Yes, clean
• No / Not sure

💡 Clean every nozzle filter one by one. Clogged nozzle filters ruin pressure and spray distribution.

Is the shaft running and the PTO around 540 rpm?

• Yes
• No

💡 PTO speed may be low.
Low PTO speed keeps the pump from producing enough flow. Check PTO and engine rpm.

Do you see air bubbles in the pump suction line?

• No
• Yes

💡 The pump may be drawing air.
Check the suction hose, clamps, suction filter and fittings.

Could the pressure relief valve or regulator be too far open?

• No
• Yes / Not sure

💡 If the relief valve or regulator dumps too much back to the tank, pressure won't rise. Check the regulator setting and return line.

⚠️ Before checking, put the machine in a safe position. Stay clear of rotating parts. For valve sound tests stop the tractor and keep the area quiet.

In Manual Mode, does pressure rise when you command pressure up?

• Yes, rises enough
• Rises a little, not enough
• Doesn't rise at all

💡 Nova, the rate valve and plumbing likely work.
The issue may be Auto Mode settings, target rate, speed signal or flowmeter setup.

Check:
• Is speed coming in?
• Target l/ha correct?
• Nozzle count correct?
• Nozzle spacing correct?
• Flowmeter constant correct?
• Orion / Wolf flowmeter selection correct?
• Is a flow value being read?

With the tractor stopped and the area quiet: in Manual Mode, do you hear an electric motor sound from the rate valve on pressure up/down commands?

• Yes
• No sound

💡 The rate valve may not be working electrically.
Check rate valve cable, valve motor, junction box, Burndy connector or the Nova output.

Does pressure rise on the up command and fall on the down command?

• Yes, works correctly
• No, works reversed
• Doesn't change at all

💡 The rate valve may be running reversed.
Check the rate valve cable, motor polarity or junction box output.

💡 Motor sound is there but flow doesn't change.
Check for mechanical jamming, hydraulic connection, bypass or the pump side.

Are the suction filter, main filter and nozzle filters clean?

• Yes, clean
• No / Not sure

💡 A filter may be clogged.
Clean the filters and retry. Clogged filters cut flow and keep pressure low.

Is the shaft running and the PTO around 540 rpm?

• Yes
• No

💡 PTO speed may be low.
Low PTO speed keeps the pump from producing enough flow. Check PTO and engine rpm.

Do you see air bubbles in the pump suction line?

• No
• Yes

💡 The pump may be drawing air.
Check the suction hose, clamps, suction filter and fittings.

With ALL sections open, does pressure rise in Manual Mode?

• Yes, it rises
• No, stays low
• Rises a bit, still low

💡 With sections closed, bypass settings can affect pressure.
Check the bypass settings and repeat the pressure test with all sections open.

Could the pressure relief valve or regulator be too far open?

• No
• Yes / Not sure

💡 If the relief valve or regulator dumps too much back to the tank, pressure won't rise. Check the regulator setting and return line.

Is the nozzle type / color / code suitable for the target rate?

• Looks suitable
• Nozzles may be oversized
• Nozzles may be worn

💡 If nozzle flow is too high the pump can't raise pressure. Use the NOZZLE SELECTION calculator to find a smaller/suitable nozzle and pressure.

💡 Nozzles may be worn.
Worn nozzles deliver more than rated; pressure stays low and application degrades.

Is the pump big enough for the nozzle count and target flow?

• Yes
• No / Not sure

💡 Pump capacity may be insufficient.
Check pump model, nozzle count, nozzle flow, target pressure and agitation return together.

⚠️ If no speed signal comes in, Nova can't dose correctly; you end up with too much or too little left. First check the speed source (GPS or wheel sensor). Let's go step by step.

During spraying, how did the live rate (applied/target) look on the Nova screen?

• Always equal (e.g. 200/200)
• Never reached target (e.g. 200/150)
• Don't remember

💡 Nova couldn't reach the target; pump pressure or filters may be insufficient. Let's check with the 'Pressure low' flow.

Was ASC (auto section control) on? (Nova 200)

• Yes (on)
• No / not on this product

💡 If passes don't fully cover the gap, the field is under-sprayed → liquid remains. Use a foam marker/GPS guidance, match pass spacing to boom width, drive with slight overlap.

Spray one nozzle into a bucket for 1 minute at working pressure. Does the litre output match the target from NOZZLE SELECTION?

• Matches, but liquid still remains
• No, it delivers less
• Couldn't test

💡 Likely issue: nozzle filters, nozzle clogging or the related section line should be checked.

💡 Check:
• Is speed coming in?
• Target l/ha correct?
• Nozzle count correct?
• Nozzle spacing correct?
• Flowmeter constant correct?
• Orion / Wolf selection correct?
• Is a flow value being read?

⚠️ If no speed signal comes in, Nova can't dose correctly; the tank runs out early or late. First check the speed source (GPS or wheel sensor). Let's go step by step.

During spraying, how did the live rate look on the Nova screen?

• Always equal (e.g. 200/200)
• Above target (e.g. 200/250)
• Don't remember

💡 Nova was applying above target; speed may read high or the flowmeter/calibration may be off. Check the speed source and flowmeter constant.

Was ASC off — could passes have overlapped?

• ASC was on / no overlap
• ASC was off, overlap possible

💡 With ASC off, overlaps happen → you over-apply and the tank usually runs out EARLY. Use GPS guidance or turn ASC on; match pass spacing to boom width.

Measure one nozzle for 1 minute — does it deliver MORE than the NOZZLE SELECTION target?

• No, matches but still runs out early
• Yes, delivers more
• Couldn't test

💡 Nozzles may be worn.
Worn nozzles deliver more than rated. Replace them; verify type/color with NOZZLE SELECTION.

Any leaks at fittings, hoses or valves?

• No
• Yes

💡 Leaks lose liquid → the tank runs out early. Repair leaking fittings/hoses.

💡 Check:
• Speed signal correct?
• Target l/ha correct?
• Nozzle count/spacing correct?
• Flowmeter constant and Orion/Wolf selection correct?

⚠️ Before checking, put the machine in a safe position. Stay clear of rotating parts.

Do you see air bubbles in the pump suction line?

• No
• Yes

💡 The pump may be drawing air.
Check the suction hose, clamps, suction filter and fittings. An air-drawing pump makes pressure fluctuate.

In Manual Mode: does pressure rise on the up command and fall on the down command?

• Yes, works correctly
• No, works reversed
• Doesn't change

💡 The rate valve may be running reversed.
Check the rate valve cable, motor polarity or junction box output.

💡 Motor sound is there but flow doesn't change.
Check for mechanical jamming, hydraulic connection, bypass or the pump side.

Does the flow / L-min value on the Nova screen look correct and steady?

• Yes
• No, Nova shows different/unstable

💡 The flowmeter constant or signal may be wrong.
Check flowmeter constant, type, sensor and cable.

💡 If fluctuation continues in auto mode: check bypass settings, the regulator and the target pressure range together. Retest with all sections open.

Is the GPS antenna on top of the tractor, exactly on the centerline?

• Yes
• No / Not sure

💡 Mount the GPS antenna on the tractor roof, exactly centered; enter the Nova geometry settings (antenna position/offset) accordingly. Wrong position or offset causes guidance drift.

Which GPS are you using?

• Cross 100 (compact / mushroom)
• Cross 200 Smart GNSS

💡 The compact mushroom GPS has limited positional accuracy; it can cause drift and line deviation. For tighter, steadier line-keeping we recommend the Cross 200 GPS.

💡 Check the GPS connection, antenna position and open sky view. If it persists, contact support.

💡 ASC open/close timing depends on antenna offset, boom geometry and valve delay settings. Check in this order:
1- Verify the antenna-boom distance (geometry) settings in Nova.
2- Adjust the valve open/close delay values gradually.
3- Test-drive at constant speed.

💡 At the row start, while speed is still low, the rate can read high until the system settles. Check in this order:
1- Enter the row at as constant a speed as possible.
2- Verify the speed source (GPS/wheel sensor).
3- Check the pressure regulator and bypass settings.
4- If it persists, verify the flowmeter constant.

⚠️ If no speed signal comes in, Nova can't dose fertilizer correctly; the hopper runs out early or product remains. Check the speed source (GPS or wheel sensor). Let's go step by step.

How did you fill the hopper?

• By field area
• By estimate

💡 Required fertilizer ≈ area (decares) × target (kg/da). If you loaded less, running out early is normal.

Are the target (kg/da), working width and speed entered correctly?

• Yes, correct
• Not sure

💡 If the target is high or width/speed wrong, the machine over-applies → the hopper runs out early. Check and correct the values.

💡 A calibration check is recommended. If you need help calibrating, contact the TIM technical support team.

⚠️ If no speed signal comes in, Nova can't dose fertilizer correctly; too much or too little remains. Check the speed source (GPS or wheel sensor). Let's go step by step.

How did you fill the hopper?

• By field area
• By estimate

💡 Required fertilizer ≈ area (decares) × target (kg/da). If you loaded more than the area needs, leftovers are normal.

Are the target (kg/da), working width and speed entered correctly?

• Yes, correct
• Not sure

💡 If the target is low or width/speed wrong, the machine under-applies → fertilizer remains. Check and correct the values.

💡 A calibration check is recommended. If you need help calibrating, contact the TIM technical support team.