PRG Best Boy Field Service Manual - Manual (Page 83)

BEST BOY 4000 ® SPOT LUMINAIRE FIELD SERVICE MANUAL 75
Replacing Upper Enclosure Fan
Parts:
25.9816.0992 / 2.3749A-R05 1 EA CABLE ASSY, UE CHASSIS FAN
Tools & Supplies:
#2 Phillips screwdriver
11/32" nutdriver
5/32" Allen wrench, T-bar
WARNING: Remove power from luminaire before performing any maintenance procedures.
To replace the enclosure fan:
Step 1. Remove power from luminaire.
Step 2. Remove Interface/LVS-side Cover. (Refer to "Removing Upper Enclosure Covers" on page 27.)
Step 3. At front of Interface/LVS Assembly, remove four 10-32 x 3/4" socket head screws (Figure 3-45).
Step 4. Remove one 10-32 x 3/8" PPB screw that secures ground wire lug.
Step 5. Pull Interface/LVS Assembly out of enclosure enough to disconnect Upper Enclosure Fan Cable.
Step 6. Remove fan by removing two 8-32 hex nuts.
Step 7. Install new Upper Enclosure Fan by doing steps in reverse.