Tilt Encoder Replacement - Philips VL3500 WASH Service Manual

Tilt Encoder Replacement

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Parts:
Repair Procedure
Step 1. Disconnect luminaire AC input cable from power source.
Step 2. As shown in
5/16" PTB screws.
Step 3. At tilt motor assembly, loosen four 10-32 x 1/2" PPZ screws.
Step 4. Remove belt from tilt pulley.
Step 5. Remove four 10-32 x 1/2" PPZ screws. Remove tensioning springs.
Step 6. Disconnect wiring and remove the tilt motor assembly.
Step 7. As shown in
remove encoder PCB.
Step 8. Replace by performing steps 2 through 7 in reverse order.
Note: Make sure encoder disk passes through sensor when installing encoder PCB. Do not pinch
wiring during installation. When tightening four 10-32 x 1/2" PPZ screws that fasten the tilt motor
assembly, you must tighten then in a CLOCKWISE pattern starting with the screw in lower left-hand
side.
1)
Tilt Motor
Assembly
02.96 86.001 0 A
M
AINTENANCE
Figure 2-17, at the tilt-side leg, remove yoke leg cover by removing four 6-32 x
Figure 2-18, at the tilt assembly, remove two 4-40 x 1/4" LG PPZ screws and
Springs
Yoke
Cover
Figure 2-18: Tilt Encoder Replacement
P : T E
ROCEDURES ILT NCODER
2)
Tilt Encoder
Tilt Motor Assembly Detail
2
R
EPLACEMENT
49