M4serviceManual_e - 第37页
3 Mechanical Section 3-7 Head Manifold Section ■ Air Passage To maintain the designed accuracy and com ponent-placem ent rate of the m achine, clean the air passage between the air filter assy. and nozzle h older periodi…
3 Mechanical Section
3-6
Head Manifold Section
Vacuum generator (x 4 for M4a/M4s, x3 for M4e)
Silencer element (x 4 for M4a/M4s, x3 for M4e)
Air filter assy. (x 4 for M4a/M4s, x3 for M4e)
Filter element (x 4 for M4a/M4s, x3 for M4e)
Solenoid valve (x 8 for M4a/M4s)
(x 6 for M4e)
*The drawing above is for M4a. Mechanical constructions of M4e and M4s are almost same as
M4a.
3 Mechanical Section
3-7
Head Manifold Section
■ Air Passage
To maintain the designed accuracy and component-placement rate of the machine, clean the air passage
between the air filter assy. and nozzle holder periodically.
ACTION: Carry out vacuum break operation for a few seconds with the nozzle removed.
● Cleaning interval
Approx. once a week
■ Air Filter
ACTION: Remove the filter element from the air filter assy. and remove dust and dirt collected inside the assy. by air
blowing. Then, check the white air element for dirt. If it is excessively dirty, replace it with a new one. If air
filter assy. case is dirty, wash it with water or diluted neutral detergent, and dry it well. If there are cracks on
the case, replace the air filter assy., since the cracks will cause air leakage.
NOTE: Do not use alcohol or any organic solvents to wash the air filter assy. case. Using those solvents may cause
damage or degradation of the case because it is made of polycarbonate.
● Inspection interval
Once a week, and when a choking error occurs
Part Name
Part No. Remark
FILTER ELEMENT LC1-M71A9-00X Filter element
AIR FILTER ASSY. LC1-M71A4-00X Air filter Assy.
■ Vacuum Generator
ACTION: Visually check the silencer element, and if it is excessively dirty, replace it with a new one. Also measure
the maximum air pressure to inspect whether the vacuum generator can generate vacuum properly.)
Inspection for Head/Nozzle Clogging and Solenoid Valve
● Inspection interval
Once a week
Part Name
Part No. Remark
SILENCER ELEMENT LG0-M71A8-00X Silencer element
GENERATOR,VACUUM LG0-M71A3-00X Vacuum generator
3 Mechanical Section
3-8
Inspection for Head/Nozzle Clogging and Solenoid Valve
Breakdown
The following inspection must be carried out approximately once a week.
■ Inspection of Solenoid Valve
The switching valve of the solenoid valve may catch foreign matter causing air leakage. Air leakage will
turn the suction ON even if it is turned OFF.
As a result, the suction cannot be turned OFF after a component is mounted, and components may be
returned instead of being mounted on the PCB.
● Inspecting by selecting [Manual] – [Meas. Air pressure]
①Checking the maximum air pressure
Turn ON the suction and press the head tip with fingers to check the air pressure. The air pressure is
satisfactory if it is “600” or higher.
②Checking the head for clogging
With no nozzles placed in the head, turn ON the suction to check the air pressure. Typical air pressure is
approx. “30”. An error will occur if the air pressure is “120” or higher during vacuum check performed
after nozzle replacement.
③Checking the nozzle for clogging
With nozzles placed in the head, turn ON the suction to check the air pressure. “Nozzle clog criteria” has
been set for each nozzle. The air pressure must be below the criteria. If it is not, the nozzle will be
considered to be clogged and an error will occur.
④Checking the solenoid valve for switching failure
Turn OFF the suction and check for change in the air pressure.
- Press the head/nozzle tip with fingers and check for change in the air pressure.
- Turn ON and OFF the suction a few times and check for change in the air pressure.
If the air pressure changes even though the suction is OFF, air is probably leaking from the suction solenoid
valve.
NOTE: Do not disassemble the solenoid valve. Manufacturer’s guarantee will be ineffective if the solenoid valve is
disassembled.
Part Name
Part No. Remark
SOL.VALVE LC1-M71A1-00X solenoid valve
NOTE: For official inspection, use of a digital vacuum meter is necessary to check accuracy of the displayed air
pressure value.
Part Name
Part No. Remark
MANOMETER ASSY. LC1-M89A5-00X Vacuum Gauge Set