Maintenance And Inspection - YAMADA TOTE IP140S3-TE Manual

ADJUSTING THE AIR PRESSURE THAT
OPERATES THE PUMP
 Set the "PUMP AIR REGULATOR" to the regulated
operation air pressure.
 Check to see how the pump plunger moves up and
down. If the pump plunger moves down clearly
faster than it moves up, it means that the suction
capability of the pump cannot handle this condition.
So, decrease the operation air pressure to adjust
the pump so that it can operate normally.
NOTES
 If the plunger moves down faster than it moves up,
the pump cannot discharge sufficient ink, and but
the life of the pump is shortened if you continue
operating the pump under this condition.
 The range of the normal operational air pressure
changes depending on the viscosity and
temperature of ink.
CAUTION
- The maximum available pressure of the pump is
100 psi. If you try to set pressure at a higher
level, the pump may be damaged or it may
cause injury or damage your surroundings.
Never increase the pressure to 100 psi or higher.
- Operate the pump with the lowest possible
pressure (air pressure). This reduces
meaningless movements and prevents each
part from being worn out.
CLEANING THE INSIDE OF THE OIL
CONTAINER AND REPLACING SOLVENT
The plunger sliding section and oil container of the
pump are sealed with packing. When the plunger
slides up and down repeatedly, solvent is accumulated
at the rim of the plunger. Clean the plunger
periodically.
 Connect the hose mouthpiece of the dedicated oil
evacuation gun to the lower coupler of the oil
container, and suck oil by pulling the handle of the
solvent removing device to discard it into the waste
oil tank.
 Follow Section "Filling the oil container" to pour
new oil from the upper coupler of the oil container
Plunger
Oil Container
- 4 -
into the container until the container is filled half-full
with oil.
 When you move the the handle of the oil removing
device connected to the lower coupler back and
forth, oil poured into the container is stirred, and it
cleans the inside of the container. When you
replace the used oil with new oil and repeatedly stir
the container several times, the container is
cleaned.

Finally, pour new oil into the container until
approximately half of the container is filled with oil.
Oil Evacuation
Gun
CAUTION
- To clean the plunger, stop the pump at its upper
movable limit. If you try to clean the plunger
while it is moving, your finger may be caught
between the plunger and the oil container, and
could result in an injury.

MAINTENANCE AND INSPECTION

 As part of the routine inspection, check to see how
much oil has accumulated in the container due to
leakage. Replace the oil with new oil according to
the amount of the increased liquid.
 Further tighten each connection of the pump:
(1) During the regular maintenance operation
(2) If air leak or ink leak is detected during routine
inspection.
 Since packing and other similar parts of the pump
are worn out depending on how frequently they are
used, check them regularly and replace them with
new ones when necessary.

If you use the pump in areas where rust is easily
caused such as in a coastal zone, metal parts may
be corroded. To prevent serious rust damages
especially to a cap nut, supply corrosion inhibitor
around the cap nut connecting the upper and lower
pumps periodically (once in every three months).