Troubleshooting Guide

Pumps and Pressure Controller

Q: I cannot get my  pump to deliver pressure?

IF GOOD  FLOW FROM BY-PASS BACK TO TANK

IF IRREGULAR FLOW FROM BY-PASS TO TANK

Q: My pump is delivering insufficient pressure?

IF HOSES ARE JUMPING

IF HOSES ARE NOT JUMPING

Q: My pump is noisy?

Q: Oil is changing colour to white or oil in spray hose?

Q: Water returning to tank through safety valve hose?

Q: T400 gun leaks?


I cannot get my  pump to deliver pressure, and there is good flow from by-pass back to Tank

Regulating valve not set for pressure
Remedy - set lever (8) to “press” and adjust knob (6)

Damaged or worn seat or spring in regulator
Remedy - replace with Sting repair kit or new spring

Sticking pressure regulator slide
Remedy - remove slide & lubricate with marine grease  

Spray nozzle/s worn, missing, or exceed pump capacity
Remedy - replace Spray Nozzles with appropriate size

BACK TO TOP


I cannot get my  pump to deliver pressure, and there is irregular flow from by-pass to tank

One or more valves are not seating.
Remedy - clean or replace valves.

Sucking air through suction line or filter.
Remedy - examine and repair.

Air has not been entirely evacuated from pump.
Remedy - run pump with lever (8) on by-pass until all air is evacuated.

Blocked suction filter or valve closed.
Remedy - clean filter or open ball valve.         

Motor to Pump drive belts loose /broken or Direct coupling damaged
Remedy - tension belts or replace, replace direct coupling sprockets  and chain

Reputed spray hoses or fittings.
Remedy - repair or replace.

BACK TO TOP


My pump is delivering insufficient pressure, and hoses are jumping.

One or more valves are not seating.
Remedy - clean or replace valves.

Diaphragm split (Oil will go milky)
Remedy - STOP PUMP! Replace (see pump manual)

Air has not been entirely evacuated from pump.
Remedy - run pump with lever (8) on by-pass, until air is evacuated

Sucking air through suction line or filter.
Remedy - examine and repair

Oil level is low.
Remedy - top up with 20W/30.

BACK TO TOP


My pump is delivering insufficient pressure, and hoses are not jumping.

Damaged or worn seat or spring in regulator.
Remedy - replace.

Sticking regulator slide
Remedy - remove slide & lubricate with marine grease

Spray nozzles worn, missing, or exceed the pump capacity
Remedy - replace nozzles with  appropriate size.

Main drive belts slipping.
Remedy - tension belts or replace, replace direct coupling sprockets and chain.

Leaking hoses or fittings.
Remedy - repair or replace

BACK TO TOP


My pump is noisy?

Oil level is low.
Remedy - top up with 20W/30

Sucking air or air in pump.
Remedy - examine and repair.

Blocked filter.
Remedy - clean filter.

BACK TO TOP


Oil is changing colour to white or oil in spray hose.

One or more diaphragms are split.
Remedy - STOP PUMP IMMEDIATELY & replace diaphragms

BACK TO TOP


Water returning to tank through safety valve hose.

Worn safety valve (Pressure adjusted to high.)
Remedy - replace safety valve.

BACK TO TOP


T400 gun leaks

Worn seat or seal in handle
Remedy - replace with T400 repair kit

BACK TO TOP

Custom Quote

We can help you create a unique spraying (or hose reel) solution that works for you

» Contact Us