PS288_OwnersMnl_PriorTo2009 - 第158页

Maintenance • Preventive Maintenance PS288 Owner’s Manual 5—23 Figur e 5-22—Replace air filter 3. Reinstall cover— Use a screwdriver to tighten the two screws holding th e filter cover to the Laser Computer . Procedures …

Maintenance • Preventive Maintenance

5—22 PS288 Owner’s Manual

Change the Laser Computer Air Filter

The Laser Computer is located in the Option Bay and can be accessed from

the back of the Option Bay. See Figure 5-20.

Figure 5-20—Location of Laser Computer

To change the Laser Computer air filter:

1. Remove cover—

Use a screwdriver to remove the two screws holding the filter cover to

the Laser Computer. See Figure 5-21.

Figure 5-21—Remove screws from Laser Computer filter cover

2. Replace air filter—

Remove the old air filter and replace with a new air filter. See Figure

5-22.

Laser Computer

Remove two screws

Maintenance • Preventive Maintenance

PS288 Owner’s Manual 5—23

Figure 5-22—Replace air filter

3. Reinstall cover—

Use a screwdriver to tighten the two screws holding the filter cover to

the Laser Computer.

Procedures Performed Once a Year

Lubricate the Gantry (X and Y) Lead Screws

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 the lead screw shields.

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 four bolts that hold the two lead screw shields to the gantry

rails.

1c) Remove the shields.

2. Remove old grease—

Using shop towels and isopropyl alcohol, remove the old grease and

dirt build up from the lead screws.

3. Apply new grease—

3a) Using a THK MG70 (or equivalent) grease gun, apply THK AFB Mul-

tipurpose lithium (or equivalent) grease to the lead screw grease fit-

tings. See Figure 5-23.

3b) Apply grease to the entire length of each lead screw.

Air filter

Maintenance • Preventive Maintenance

5—24 PS288 Owner’s Manual

CAUTION: Do not over-apply the grease. Over-applying will

cause grease to splatter inside the work envelope.

Figure 5-23—Grease fittings

3c) Reinstall the two lead screw shields.

Replace all Filters in the Fume Extractor

Once a year, replace all filters in the laser marker fume extractor. See

Figure 5-24 for the location of the four replaceable laser vacuum filters.

Figure 5-24—Laser vacuum filter locations

Grease fittings

Pleated filter

Carbon filter

Pre-filter

HEPA filter