Magnum Venus Plastech HIS Troubleshooting Manual - Manual (Page 17)

Page 15
H.I.S. Troubleshooting Manual
from well with suitable tool
being careful not to
damage threads in plug
ports. Free and remove
spring and ball. Remove
injector (see picture of tool
application). Clean the
entire cavity thoroughly.
Run tap water through
injector port to clean
threads. Replace all worn
or damaged parts.
Leak in packing Needle packing worn (see
drawing next page) Tighten needle packing by
turning packing nut
clockwise on flush, resin or
catalyst needle packing
where leak is evident. If
leak persists, remove and
replace packing. Keep
needles lubricated to
prevent over-spray from
forming on needles and
being forced into packing
with trigger action.
Leak from nipples on gun
head O-ring failure Remove and replace O-
ring for seal between
nipple and gun head
where leak is detected.
Loose hose connection Tighten hose fitting on
nipple.
Catalyst nipple pipe thread
worn. Remove catalyst hose
nipple from adaptor. Apply
Teflon tape to nipple pipe
fitting. Screw nipple back
into adapter.
Trigger action stiff Trigger bent, needles
bent, spring, spring screw
or needle guide worn Remove trigger and
straighten tangs so holes
for stud and nut align.
Remove and replace bent
needles or worn needle
guides. Remove spring
screw and spring from gun
handle for inspection.
Replace deformed springs
or worn spring screws.