PS288_OwnersMnl_PriorTo2009 - 第154页

Maintenance • Preventive Maintenance PS288 Owner’s Manual 5—19 filter and HEP A (High Effi ciency Particulate Air) filter should be changed every twelve months. See Figur e 5-15 for the locatio n of the four replace- abl…

Maintenance • Preventive Maintenance

5—18 PS288 Owner’s Manual

Figure 5-14—Center carrier screw locations (one is hidden in this view)

Check the Vision Camera

WARNING: Electric shock hazard. Shut down the PS288 (see

“Shut Down the System” on page 3-12) and turn off the main

power switch before removing any panels.

1. Prepare the system—

1a) Verify that the PS288 is shut down and the main power switch is in the

OFF position.

1b) Remove the right or rear cabinet panel, depending on where the camera

is mounted.

2. Check mounting bolts—

2a) Check the mounting bolts above the camera.

2b) Tighten if necessary.

3. Check knob—

3a) Check the knob behind the camera.

3b) Tighten if necessary.

4. Check thumb screws—

4a) Check the cable, aperture and focus thumb screws.

4b) Tighten if necessary.

4c) Reinstall all guards and panels.

Replace Pre-filter and Pleated Filter in Fume Extractor

The laser vacuum filters require changing on a regular basis. The mainte-

nance interval depends on the number of devices marked and the amount of

text marked. In general, the pre-filter and pleated filter should be changed

every six months, or more frequently if low air flow is detected. The carbon

Center carrier screw locations

Maintenance • Preventive Maintenance

PS288 Owner’s Manual 5—19

filter and HEPA (High Efficiency Particulate Air) filter should be changed

every twelve months. See Figure 5-15 for the location of the four replace-

able laser vacuum filters.

Figure 5-15—Laser vacuum filter locations

The Handler Computer software monitors the air flow sensor on the laser fil-

ter system. If the sensor detects low air flow, the error message "Laser filter

full" is displayed. When this error message displays, the laser system will

mark 10 more devices as defined in the WinAH400.ini file.

WARNING: Failure to replace the laser vacuum filters at the

appropriate intervals could create a hazardous operating environ-

ment.

WARNING: This procedure should be performed only by quali-

fied service personnel who have successfully completed

Data I/O's laser training class. This procedure involves exposure

to hazardous by-products from the laser marking process.

WARNING: Electric shock hazard. Shut down the PS288 (see

“Shut Down the System” on page 3-12) and turn off the main

power switch.

WARNING: Hazardous materials. Wear safety goggles and dis-

posable protective gloves. Do not clean the laser vacuum filters by

blowing with compressed air, shaking, or using any method that

allows the particulate trapped by the filters to be released into the

work environment.

Pleated filter

Carbon filter

Pre-filter

HEPA filter

Maintenance • Preventive Maintenance

5—20 PS288 Owner’s Manual

To replace the pre-filter and the pleated filter:

1. Prepare the system—

1a) Verify that the PS288 is shut down and the main power switch is in the

OFF position.

1b) Remove lower back laser housing panel from the laser enclosure by

removing the eight screws highlighted in yellow in Figure 5-16.

Figure 5-16—Lower back laser housing panel screw locations

1c) Remove side laser housing panel by removing the four screws high-

lighted in yellow in Figure 5-17.

Figure 5-17—Side laser housing panel screw locations

1d) Put on the disposable protective gloves and open the sealable plastic

bag.

2. Detach vacuum hose—

2a) Loosen the clamp holding the vacuum hose to the extractor top and

detach the vacuum hose from the extractor top. See Figure 5-18.

2b) Carefully set the vacuum hose aside.

Figure 5-18—Vacuum hose clamp