Magnum Venus Plastech HIS Troubleshooting Manual - Manual (Page 27)

Page 25
H.I.S. Troubleshooting Manual
foot valve of pump.
Immerse wand into resin.
Throttle air to pump slowly
until pump responds to
drawing resin.
Pump cycles when gun is
not in use Worn piston cups Remove tie rod, nuts, and
foot valve collar. Remove
cylinder and foot valve from
center section of pump.
(4:1 and 7:1 units with long
pump tube, remove foot
valve and pump tube).
Hold piston body secure
and remove piston keeper,
back-up ring, piston cup,
spacer ring and second
piston cup. Replace cups
by installing assembly in
reverse order of tear down.
Pumps stops air
continuously exhausts. O-ring failure Valve spool or valve sleeve
O-rings ruptured. Push
pump piston rod to the
extreme up position before
disassembling power head.
CHAPTER 8:
Flush Hose Installation:
1. Install solvent line before catalyst and resin hoses.
2. Apply 30psi to solvent pressure pot and check retainer for leak.
CHAPTER 9:
Flush System Trouble Shooting:
Problem Cause Action
Resin in solvent hose or
flush tank Flush needle seat leak Apply more spring
pressure to flush needle
by holding needle with
screwdriver, through the
mix chamber and
tightening the spring
retainer for the flush
needle by turning it
clockwise with a suitable