Troubleshooting - YAMADA TOTE IP140S3-TE Manual

TROUBLESHOOTING

State
Air is not supplied.
The supply pressure is low.
Pump does not run
The discharge flow valve is not open.
Icing inside exhaust port.
Pump does not prime The supply air pressure is too high.
ink during stat up.
If the plunger operates faster during the moving-up
process, the seat of the piston valve malfunctions
(the seat section is worn out or a foreign substance
is mixed into the valve), or the packing or similar
part is damaged.
If the plunger operates faster during the
moving-down process, the seat of the foot valve
malfunctions (the seat section is worn out or a
foreign substance is mixed into the valve), the
Pump does not
packing or similar part is damaged, or the shovel
deliver ink
rod is bent.
If the plunger operates faster during the
moving-down process, the pump operates at a
speed too high for the lower pump to suck ink (the
lower pump is evacuated).
The screw or other part that fix the air motor and the
plunger of the lower pump is loosened, and then
removed completely (a part located inside the lower
pump may be damaged).
Ink leakage from the ink delivery pipe connection.
The pump does not
Ink leakage from the parts-connecting section of the
stop.
suction pump assembly.
The screws that connect parts is loosened, or the
Air leakage form the
O-ring, packing or similar part is damaged.
air motor
A foreign substance is caught between the block
inside the switching valve (804355 or 804358) and
Air leakage from the
the sliding section of the switching valve seat
silencer during stop
(705688), the seat is worn out, or the gasket
(772331) is damaged.
The screws that connect parts is loosened, or the
Ink leakage from the
O-ring, back-up ring, packing or other similar part is
suction pump
damaged.
The screws that connect parts of the lower pump is
Air entrained in ink loosened, or the O-ring, back-up ring, or gasket is
damaged.
Without Overflow catch bottle.
The oil container
swells (is dissolved)
Solvent attacks acrylic resin.
The amount of liquid The gland seal is worn out or damaged.
increases rapidly in
the oil container.
----- RETAIN THIS INFORMATION FOR FUTURE REFERENCE-----
For accurate and speedy shipment of parts, be sure to order the right parts for your model from your distributor.
Indicate the part numbers, descriptions, and quantities.
Cause
- 19 -
Action to be taken
Start the compressor, and open the air valve and
air regulator.
Set the air pressure to 30 psi or more.
Open the ink delivery valve.
Install air line coalescing filter to remove
moisture.
Until pump discharge ink from bleeder valve, run
pump 8-10 cycle per minute.
Replace the malfunctioning part with a new one,
or remove the foreign substance.
Replace the malfunctioning part with a new one,
or remove the foreign substance.
Decrease the air pressure so that this
phenomenon cannot occur (under this condition,
the air pressure you set at this point is the upper
limit the pump can operate at normally).
After checking the inside of the lower pump,
replace the damaged part with a new one, and
tighten the removed screw(s) securely.
Tighten the screw fixed at the malfunctioning
section further or replace the damaged part with a
new one.
Tighten the screw fixed at the malfunctioning
section further, or replace the damaged part with
a new one.
Replace the damaged part with a new one, or
remove the foreign substance.
Tighten the screw fixed at the malfunctioning
section further, or replace the damaged part with
a new one.
Tighten the screw fixed at the malfunctioning
section further, or replace the damaged part with
a new one.
Put in Overflow catch bottle, when you operate
pump.
Use spindle oil (ISO viscosity grade 10).
Replace the gland seal with a new one.