I.C.T.C. Holdings Corporation 1150GSD operating instructions Hydraulic Intake Valve REF# 66

Page 15

TROUBLESHOOTING

The backward movement of the piston, creates a vacuum in the hydraulic system. This causes the hydraulic outgo valve to close and the hydraulic intake valve to open (fig# 1). Opening of the hydraulic intake valve allows a new supply of hydraulic oil to enter the system, replacing the oil which was used on the forward stroke. Once again a corresponding re-action is taking place in the paint pump. The hydrapulse membrane is being pulled backward by the hydrapulse membrane spring, (ref# 56). The backward hydrapulse membrane movement causes a vacuum in the paint pump. This vacuum causes the intake valve to open, allowing a new supply of paint to enter. The corresponding paint outgo valve is drawn closed by the vacuum created by the hydrapulse membrane.

These operations are repeated at a rate of 750 times a minute. These continuously repeated actions draw paint into the pump, pressurize it, and then deliver it to the gun. The failure, of any one valve, to operate correctly will effect the overall equipment performance. Each of the five valves mentioned earlier, have an important function and will effect the overall performance of the unit if not performing correctly.

HYDRAULIC INTAKE VALVE (REF# 66, PART # 4-30)

The hydraulic intake valve, is a small vacuum valve which controls the hydraulic oil entering the hydraulic pump/cylinder area. Once the oil has past through the valve it is prevented from returning. The valve is commonly called a “one way check valve”. Valve failure will result in the hydraulic pump being unable to build pressure, and the hydrapulse membrane will stop moving. Spray pressure will cease.

HYDRAULIC OUTGO VALVE (REF# 74, PART# 4-27C)

The hydraulic outgo valve, better known as the "pressure control valve", is used to control the units operating pressure. The valve is fully adjustable from 0 psi. to 3000 psi. By turning the pressure control valve knob (ref# 75) clockwise the pressure is increased. The hydraulic pump continues to build at all times and must have a means of releasing this pressure. Pressure applied to the P.C. ball, (ref# 88) will keep it lodged in the P.C. seat (ref# 87) until the internal hydraulic oil pressure is sufficient to cause it to open. The point at which the oil is released is equal to the level set by the control knob. As components within the pressure control valve wear, the valve looses its ability to maintain or reach the required pressures (see "low static pressure").

PAINT INTAKE VALVE ASSEMBLY (REF# 11-18)

The paint intake valve is made up of eleven items, endcap (ref# 11), washer (ref# 12), seat (ref# 13) intake ball (ref# 14), spring (ref# 15), o-ring (ref# 16), ball guide (ref# 17), and ball stop (ref# 18). The intake valve controls the incoming flow of spray materials and is responsible for keeping them from returning to the source. The ball must be able to create a complete seal on the seat, otherwise pressure will be lost. A worn intake valve will permit correct static pressure, but supply lower spray pressure. A worn intake ball will become smaller in diameter and loose its ability to seal at the seat. A worn seat will develop a large step in the area where contact with the ball is made. This can cause the intake ball to distort in shape making the ball egg shaped. If the valve assembly becomes warm to the touch, this may be a sign of a loose or worn seat caused by wear or improper compression caused by a worn intake washer (ref# 12). The intake washer (ref# 12), acts as a compression washer insuring the seat (ref# 13) remains pressed into the endcap (ref# 11). The seat must remain firmly pressed into the endcap at all times, through the correct assembly of parts listed, and the correct bolt torque. Replace the intake washer (ref# 12) each time the endcap is removed. See page 23 for details.

TROUBLESHOOTING

H.E.R.O. INDUSTRIES

14

1150GSD MANUAL - “B” VERSION

Page 14 Page 16
Image 15
Page 14 Page 16
Contents Version Beginning AT Serial Number Airless Spray EquipmentR.O. Warranty Table of Contents Important Safety PrecautionsAlways Always R.O. Airless Spray PaintingE R a T I N G Setting UP to SprayInstructions Hydrapulse B Version Beginning AT Serial NumberAlways Paint Straining Special Notes and Instructions Flushing the Unit AT Shutdown Or Color ChangeAirless Spray Painting GAS EngineAirless Spray Painting Suggestions and Technique Suggestions and TechniqueSpray TIP Selection Orifice Size TroubleshootingSpray TIP Replacement TIP Size For ApplicationR.O. Industries 1150GSD Manual B Version Paint Intake Valve Assembly REF# Hydraulic Intake Valve REF# 66Hydraulic Outgo Valve REF# 74, PART# 4-27C Prime Valve REF# 36, PART# Paint Outgo Valve REF# 26, PART# 4-611CSituation Gasoline Engine Wont START/RUN No PRESSURE, Blue Hydraulic Fluid in Paint Troubleshooting Sprayer does not Prime with Paint Spray Pattern is Spotty or Uneven Hydrapulse Membrane ReplacementRemoval Replacement of Intake SeatTools Required Piston RepairsSpecial Notes Outgo Valve REF# Prime Valve Repairs O L S Required Pressure Control ValveO L S Accessories Parts ListZIP TIP INSERT, Available in the Following Sizes Parts ListDescription QTY AssyKIT Outgo Parts Industries 1150GSD Manual B Version Drive Parts Decals 1150GSD Parts Schematic Manual B Version
Top Page Image Contents