Magnum Venus Plastech HIS Troubleshooting Manual - Manual (Page 28)

Page 26
H.I.S. Troubleshooting Manual
wrench. Check to see
packing nut is not too tight
to overcome force of
spring. If leak condition
persists it is necessary to
remove and replace the
flush needle seat. Clean
solvent tank, hose, elbows
and nipples prior to
reassembling system.
CHAPTER 10:
Airlift Trouble Shooting:
Problem Cause Action
Air-lift will not rise Insufficient Air Check air to unit. Set
regulator on manifold at
50psi and attach quick
disconnect to air lift
connector. Increase air
pressure on regulator until
air lift rises.
Leaks. Make sure all connections
are tight. Leaking air
reduces efficiency of
equipment.
Over tightened bracket If bracket or bracket U-
bolts have been over-
tightened, cylinders will
seize on post. Loosen
until cylinder rides
smoothly on post.
Worn Packing cups Remove and replace.
Remove pump from airlift.
Disconnect flush pot and
remove. Unscrew post
from base; unscrew stop
sleeve from cylinder and
slide cylinder from post.
Replace cup. Care must
be taken, after
reassembling new cup,
washer and screw, when
inserting post into cylinder.
Be sure cup is not