Pre-Installation Mold Checklist and Maintenance Date

Pre-Installation Mold Checklist and Maintenance
Item Instruction Checked
Maintenance
Stripper Head
Cutoff Bar
Date _________
Check the stripper head Make sure the stripper head plate is not bowed by
plate for trueness putting a straightedge along the bottom side.
Check that the plungers
Turn stripper head up and look at inside welds for
do not have cracked welds
signs of cracking
Check the stripper shoes
Shoes tilted in respect to each other can indicate
with straightedge along
worn or bent plungers or excessively worn shoes
bottom
that have been flipped.
Check plunger for
Use a square to detect a possible bent or loose
squareness to head plate
plunger that may have to be replaced or shimmed.
Check shoes and shoe
Look for shoes with rounded edges or wear spots
bolts for wear
and look for bolts that have cupped heads.
Check stripper head bolts
Most stripper head bolts are 3/4" x 2-1/4" L. If they
for proper length
are any longer they can hit core plate during strip.
Make sure all fasteners
Stripper head bolts should be torqued to 100-140 ft-lb
are secure
and shoe bolts should be torqued to 65-75 ft-lb.
Check body of cutoff bar
With a straightedge make sure that the cutoff bar
for straightness
is not bent or that there are no cracks.
Check wiper frame
Make sure that the wiper frame is not bowed, bent,
for trueness
or cracked and holds rubber securely.
Look at general condition
Is the rubber dried and cracked or worn and is
of wiper rubber
it properly positioned in the frame to wipe the shoes?
Check that cutoff shoe
Make sure that the shoes are not worn and will
or shoes are not worn
properly rake material in the mold evenly.
Check the bolts holding
Check that the bolts holding the frame and wiper
frame and wiper rubber
rubber are secure.
Check that agitator is
Check diagonal measurements and also lay the grid
not skewed
on a flat surface to look for vertical distortion.
Check overall condition
Make sure that the bars are not bent in vertical or
of agitator bars
horizontal direction and that they are not broken.
Agitator Grid Check condition of the
agitator fingers
Check all welds for
condition
Check that the grid is
proper for the mold
Make sure that the fingers are not broken or bent
that they are firmly attached to bars.
Make sure that the welds holding the bars to the
side bars and the fingers to the bars are sound.
The fingers should be over cores and division
plates and not over any mold cavity.

Mold Frame
Unit Components
Pre-Installation Mold Checklist and Maintenance
Date _________
Look at general condition
Check wear on side bars at mold lock liners and
of mold side bars
see how distorted extended angle is.
Check the outside division
These can be checked visually or with the fingers
plates or mold end bars
to detect any signs of excessive wear that could
for wear
cause tearing or "troweling" on the face shells.
Check the mold top plate
Make sure the top plate is not excessively worn
for wear and weld cracks where cores seat
Check the condition of
See if the fence and its welds are cracked and
the mold fence
make sure it is not bent up excessively.
Look at the top plate
Check the welds on the wear strip and check the
wear strip
important 5-1/2" dimension from the center of the
back vibrator bolt hole to the edge of the strip.
Look at the condition of
The hold downs should not be pulled down against
the hold downs and rivets
the extended angle and the rivets should be seated
correctly in the hold down.
Check the bolts, nuts,
Make sure that all bolts and nuts are present
and lock washers
and that lock washers are properly compressed.
Outside plates should be torqued to 625-675 ft-lbs.
Outside plates with face liners to 175-195 ft-lbs.
Check squareness of the
With a tape measure, measure the diagonals of the
mold frame
mold to see if they are the same.
Check inside division
Check the wear on the division plate and see
plate condition
that the plate is not broken and loose
Check the end liners
Look at and feel the end liners for signs of
for excessive wear
excessive wear that can cause unit deformation.
Check the valve springs
Check that the assemblies are not broken and that
in the core assemblies
they work freely to prevent suction.
Check the core assemblies
Make sure the cores are not twisted and that they
for proper positioning
are centered in the compartment.
Look at the wear on the
Check that core plates are not over-worn or cracked
core assemblies
and that bells are not worn or have holes.
Look at component
Make sure that all components are not loose and
security
end liners are torqued to 100-140 ft-lbs. and
core assemblies are torqued to 70-90 ft-lbs.

Vibrator Shafts
Pallet Guides
Pre-Installation Mold Checklist and Maintenance
Check sheaves on
vibrators for wear
Check sheave alignment
with motor sheaves
Look at vibrator weights
for size and positioning
Check the ease of rotation
of shafts
Look at seating of shaft
in mold side bar cutout
Check end play in the
vibrator shaft
Check the condition of
the neoprene seals
Check the condition of
the grease fittings
Check pallet guides
for positioning
Check the condition of
the pallet guides
Check the condition of
the vibrator bolts
Date _________
Make sure that the sidewalls are not worn and that
groove bottoms are not shiny and they are not broken
See that the vibrator and motor sheaves are in a
straight line when mold is installed in machine.
Make sure that each shaft has the same weight on
it and they are positioned properly with nuts out.
Make sure the weights return to bottom dead center
when they are turned either CW or CCW and released
Make sure there is an gap between bearing housing
and side bar when shaft is seated.
Push and pull on the vibrator sheave and make
sure that there is no movement and those directions.
Make sure that the neoprene seals are properly
seated and that they are not broken.
Check for signs of recent greasing and see that
the fitting will accept a grease gun.
Check that the pallet guides do not come in
contact with the outside division plates
Check that the pallet guides are not broken or bent
and they don't have areas where the pallet can
catch during the strip and cause pallet bounce.
Make sure bolts are secure and sound and that
there are no broken lock washers.
Vibrator bolts are torqued to factory specs.