4” ROAD TOW RAPTOR PUMP - TROUBLE SHOOTING
There are HOT surfaces and ROTATING parts – please take care when working with this equipment !
1. Pump does not prime or pump water (engine is running)
a. Check that the end of the suction hose is submerged and not drawing in air
b. Check the strainer is not blocked with a rag or leaves etc
c. Check all the suction hoses are connected, not squashed flat and not drawing in air
d. Disconnect the suction hose, look inside the suction port and ensure there is nothing blocking the inlet or lodged in the impellor
e. Using a 24 Spanner – remover the NRV Cover plate indicated in the picture below
Lift this lid up, inside you will find a solid rubber ball,
Picture 1 is the NRV Ball in place, and picture 2 is the ball removed from the valve.
Simply remove the ball and ensure the seat and surrounding area is clean and free from any stones, twigs etc.
We have had occasions where lime scale has built up on the surrounding seat and sealing surface, this may cause air to leak through and prevent an air tight seal.
Please scrape/clean this lime scale off and replace the ball.
Replace the cover (ensure the arrow – depicted below – is pointing in an upwards direction)and tighten all bolts.
If the engine is running and you are not getting water – check to see if there a vacuum on the suction side of the pump.
Have a look at the vacuum gauge (pic below)
If there is a vacuum – (gauge should read around -0.8) there is a strong likelihood that the pump is blocked or the suction pipe is blocked or damaged.
If the pump still does not prime and pump and the suction line is clear/unblocked – you are going to need to contact our 24 hour phone number – 01329 229 800
An engineer will be in contact with you shortly.
2. Engine runs but only pumps limited amount of Liquid
a. Make sure the Suction strainer is not blocked with debris.
b. Make sure there are not too many suction hoses.
c. Ensure there are no collapsed, kinked or damaged suction hoses
d. Remove the suction hose from the pump and check there is nothing inside the impellor (pump must be off)
e. Check the discharge line has no kinked or squashed pipes
f. Check the engine speed – this should be around 1700 RPM max (use the lever to increase or decrease the speed – this will increase or decrease the flow rate)
g. Make sure the strainer is not sitting or buried in mud
h. Ensure the suction lift is not greater than 8m deep
3. Engine will not start or run when operating in “MANUAL” condition.
a. Make sure there is power to the ignition box. (ignition lights will illuminate and an alarm will sound)
b. Check the battery terminals – make sure they are tight and secure
c. Check the fuel level in the fuel tank – Open the fuel cap and look inside – often the fuel gauges get stuck in the FULL position.
d. If the pump has run out of fuel – please inform our engineer – he will need to reprime the fuel system
e. Check the inline fuel filter is clean and not blocked up with sediment.
f. Allow the engine to go through its startup cycle before trying to restart again
g. Please don’t run the battery flat by continuously trying to start the pump
h. If the pump is set up with float switches and running in an “AUTO” condition, ensure that there is water in the area and the float switches are all in an up position
i. If only one float is up – the pump will not start – both floats need to be up. Check float switch settings and make sure the pump stops before air is drawn into the suction pipe
4. Flat Battery
a. A flat battery is a very common occurrence – this happens when the pump is not turned off completely. The engine has stopped and the ignition is left on. This will drain and deplete the battery
b. Is it possible to connect a set of Jumper Leads and jump start the engine? The battery is located on the front – left side of the pump. (with the pipework in front of you)
c. If this is not possible – you will need to contact our office and an engineer will replace the battery. There may be a charge for a flat battery call out
Please ensure that you adhere to the daily maintenance schedule – if this is not done daily – mechanical failures may result. All the above scenarios are possible issue of a nonfunctioning pump, these issues can normally be rectified over the phone.
However – if you are not competent or unsure – please do not attempt to rectify or fix the issue.
Please call our 24 hour phone number – 01329 229 800