El Diablo HE (Heat Exchange) Truck Mount
9
Engine
Hard starting or won’t start
Check fuel in fuel tank to assure proper level and not contaminated.
Check fuel pump for operation.
Check for proper oil level.
Check battery and battery connections. Make sure they are clean and tight and battery is
charged.
Check fuse located on side of engine. Replace if blown.
Check waste tank water level. Drain if necessary.
Check waste tank float switch to make sure it is not stuck.
Inspect spark plugs and spark plug wires. Clean or replace spark plugs if necessary.
Engine runs but loses power
Check fuel for good quality.
Check fuel filter. Replace if restricted.
Check air filter for cleanliness. Replace if necessary.
Check spark plugs for proper gap and condition.
Make sure waste tank lint screen is clean.
Check engine oil level.
Check fuel pump for proper operation.
Vacuum
Vacuum is weak
Make sure waste tank lint screen is clean.
Check that the waste tank lid is on properly.
Check to make sure the waste tank gasket is in good shape.
Check to make sure the waste tank drain valve is closed.
Check the vacuum hoses and cleaning tool for clogs.
Make sure engine is at proper operating rpm (3000).
Check waste tank inlet and lint basket for restrictions.
Water Pressure
Low or no water pressure on gauge
Check incoming water supply for sufficient volume and pressure.
Check float in water tank to make sure it is not stuck or clogged.
Check level of cleaning solution in solution container and make sure hose is below solution
level.
Check to make sure the pump clutch is engaging.
Check pump belt tension to make sure it is not slipping.
Check adjustment of pressure regulator to make sure it has not backed off.
Check jets on cleaning tool for correct size and excessive wear of opening.
Check filter screen in bottom of fresh water tank.
Low water pressure at tool
Jet on cleaning tool partially clogged.
but good pressure on gauge
Quick disconnects on hoses worn and not making good connection.
Pressure hoses between machine and cleaning tool damaged or restricted.
Bad valve on cleaning tool.
Heating coil has scale build-up.
Troubleshooting
DO NOT PERFORM ANY MAINTENANCE PROCEDURES WHILE THE EqUIPMENT IS RUNNING. MOVING PARTS
AND HOT COMPONENTS MAY CAUSE PERSONAL INjURY OR DAMAGE TO COMPONENTS MAY OCCUR.
