Davey SJ60-08PC Automatic Water Pressure System - Manual (Page 6)

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Pressure Tank Maintenance (
SJ35-04P2C/LOP only)
The only regular attention your new pressure system requires is to check the pressure tank’s air
charge every 6 months. This is ‘factory set’ at 125kPa (18psi) and can be checked at the air valve
with a tyre gauge.
To check air pressure in tank:
1.
Switch off pump.
2. Open outlet nearest to pump to release water pressure.
3. Remove air valve cap from top of Supercell tank and charge tank to 125kPa (18psi) using
air pump and check with tyre gauge.
4. Switch on.
5. Close outlet.
Your SJ35-04PC & SJ60-08PC pump is fitted with a Presscontrol. This device will automatically stop and start your
pump, depending on flow demand. Please read the enclosed presscontrol instructions carefully for full details as to its
function.
Trouble Shooting Check List
MOTOR DOESN’T START WHEN SWITCHED ON
1.
Power not connected.
2. Supply voltage too low.
3. “Over temperature” cut-out tripped.
4. Motor not free to turn eg. a jammed impeller.
5. Internal motor fault.
MOTOR DOES NOT START WHEN TAP IS OPENED
1.
Automatic switch has detected loss of prime.
2. For SJ35-04P2C/LOP only - pressure tank has excessive air charge.
MOTOR RUNS WHEN SWITCHED ON BUT DOES NOT PUMP
1.
Suction line and pump body not filled with water.
2. Air leaks in suction lines or suction pipe not under water.
3. Air trapped in suction lines (also possible with flooded suction due to uneven rise in piping; eliminate humps and
hollows).
4. No water at source or water level too low.
5. Valve on suction lines closed.
MOTOR RUNS WHEN SWITCHED ON BUT DOES NOT PUMP, PUMPS POORLY OR LOP PRESSURE SWITCH
SHUTS DOWN OR FAULT LIGHT ON Presscontrol IS LIT (PUMP STOPS)
1.
Suction line and pump body not filled with water.
2. Air leaks in suction lines or suction pipe not under water.
3. Air trapped in suction lines (also possible with flooded suction due to uneven rise in piping; eliminate humps and
hollows).
4. No water at source or water level too low.
5. Valve on suction lines closed.
6. Check valve installed in wrong direction.
7. Suction lift too high.
8. Leaking air bleed screw.
9. Blocked jet or venturi.
10. Blocked impeller.
11. Flow restrictor removed and high flow required - LOP model only.
12. Pressure tank over charged causing LOP function to engage prematurely.
Never operate your pump for more than several seconds without discharge flow.
CAUTION: Do not charge tank to a higher pressure than 125kPa.