PRG Best Boy Field Service Manual - Manual (Page 50)

42 BEST BOY 4000 ® SPOT LUMINAIRE FIELD SERVICE MANUAL
Replacing Front Glass
Parts:
41.9816.0628 / 2.37493-R10 1 EA FRONT GLASS
Tools & Supplies:
Flat screwdriver
Cotton gloves or finger cots
WARNING: Remove power from luminaire before performing any maintenance procedures.
To replace front glass:
Step 1. Remove power from luminaire and allow components to cool for at least 5 minutes.
CAUTION: Be extremely careful when removing Retaining Ring and Front Glass in next step. The glass can
be easily chipped or cracked. Wear cotton gloves or finger cots when handling the glass.
Step 2. Position luminaire head so that Front Glass is facing upward. (To prevent it from falling onto the floor when
the Retaining Ring is removed in the next step.)
Step 3. Insert flat screwdriver under notch in Front Lens Retaining Ring. Carefully remove Retaining Ring.
Step 4. Remove Front Glass.
Step 5. Replace Front Glass by doing steps in reverse. Ensure gasket under Front Glass is not damaged or missing.
Figure 3-17: Removing Front Glass
Front Glass
Retaining
Front Lens
Notch
Ring
Note: Ensure gasket under Front Glass is not
damaged or missing before reinstalling.
CAUTION:
Do not handle front
glass with bare hands.