PRG Best Boy Field Service Manual - Manual (Page 69)

BEST BOY 4000 ® SPOT LUMINAIRE FIELD SERVICE MANUAL 61
Replacing a Zoom Lens Motor
Parts:
23.9816.0530.01 / 2.3749A-R25 1 EA MOTOR ASSY, ZOOM LENS GROUP 1
23.9816.0530.02 / 2.3749A-R30 1 EA MOTOR ASSY, ZOOM LENS GROUP 2
23.9816.0530.03 / 2.3749A-R35 1 EA MOTOR ASSY, ZOOM LENS GROUP 3
Tools & Supplies:
#2 Phillips screwdriver
Wire cutters
Loctite #242 (06.6008.0001)
Loctite #425 (06.6008.0003)
Cable Ties
WARNING: Remove power from luminaire before performing any maintenance procedures.
To replace a zoom lens motor:
Step 1. Remove power from luminaire.
Step 2. Remove R2/Designer Wheel Head Cover. (Refer to "Removing Head Covers" on page 24.)
CAUTION: NEVER touch or adjust the brass spring-loaded standoff. It is set at the factory.
Step 3. At Head Controller PCB, disconnect cable of required Zoom Lens Motor. Refer to the following illustrations:
a. Lens Group 1 Motor (G1) in Figure 3-34
b. Lens Group 2 Motor (G2) in Figure 3-35
c. Lens Group 3 Motor (G3) in Figure 3-36
Step 4. Cut cable tie which secures cable to luminaire.
Step 5. At Zoom Lens Motor, loosen set screw which secures shaft to coupling.
Step 6. Remove Zoom Lens Motor by removing two 6-32 x 3/8" socket head screws.
Step 7. Install new Zoom Lens Motor by doing steps in reverse. Do the following:
a. Apply Loctite 242 to threads of 6-32 x 3/8" socket head screws.
b. Torque set screw to 2 in-lbs and apply a drop of Loctite 425 to threads.