Magnum Venus Plastech HIS Troubleshooting Manual - Manual (Page 6)

Page 4
H.I.S. Troubleshooting Manual
No cure Catalyst relief valve
on catalyst
accumulator leaking Relieve pressure from catalyst system.
Remove return tube form from fitting.
Remove tube-fitting spring and ball from
relief valve body on accumulator. Check
interior of relief valve body for foreign
material contaminant. Install new ball,
existing spring and tube fitting with O-ring
in place. Reinstall return tube on tube
fitting.
Whenever compressed air is used to air dry or to blow off parts, insure that there
is no moisture or oil in air line.
*To determine the cause of catalyst pump failure, the following test is suggested:
1. Bleed pressure from unit by closing shut-off valve for air to power head on resin
pump and running pressurized material out of the lines by squeezing the trigger
on the gun. Relieve pressure. Release trigger. Flush gun.
2. Remove quick pin from catalyst pump bearing block and upper slave arm.
Release packing pressure by loosening packing nut at the top of the catalyst
pump.
3. Using the priming knob on the bearing block of the pump, hand pump the piston
rod up and down several times. The pressure build up should be felt. If a
pressure build up cannot be felt, and the pump action feels spongy, air is in the
pump. If the pressure build up is felt stop pumping
4. Use charging pump to put 250 psi (test figure only) charge in catalyst
accumulator, if fluid is more than 1” in accumulator, re-bleed system as described
in #1.
5. Hand pump catalyst up into the accumulator. The fluid level should raise in the
accumulator glass tube an equal amount on both the up and down strokes.
6. If the fluid does not rise in the down stroke, use
corrective action for “C” (Ball
Valve in Inlet Body Not Seating) above.
7.
If the fluid does not rise on the up stroke, use corrective action for “B” (Piston
Seat Failure) above.
8. When the fluid level in the accumulator is in the upper 25% of the glass tube and
the fluid ceases to rise on the up-
stroke, use corrective action for “A” (Piston Seal
Failure) above.