3-72
V
ARI
*L
ITE®
-
VL2B
AND
VL2C
S
POT
L
UMINAIRE
S
ERVICE
M
ANUAL
CONFIDENTIAL
02.9631.0010
15 Jan 98
Step 10.
Remove pulley side rail cover.
a. At bottom of the pulley side rail cover, remove two 6-
32x5/16"PPB screws.
b. At top of pulley side rail cover, remove one 6-32x5/16"PPB
screw and remove pulley side rail cover.
Step 11.
Remove tilt mechanism from luminaire head.
a. At rear cover, remove 10-32x1-1/4"PFB screw and black
#10 flat washer from floating-nut plate of tilt mechanism.
b. At tilt mechanism, remove three 10-32 KEPS nuts and #10
flat washers.
c. Remove three 10-32x1-1/2"PFB screws.
d. Free belt from drive pulley on clutch shaft of tilt mechanism
and remove tilt mechanism.
Step 12.
Install replacement tilt mechanism.
a. Slide belt over pulley on clutch shaft of tilt mechanism.
Ensure that belt is in proper position over driven pulley and
drive pulley of tilt mechanism.
b. Mount replacement tilt mechanism on pulley side rail.
c. Apply Loctite 242 to three 10-32x1-1/2"PFB screws, fit
black #10 flat washer, and insert through pulley side rail into
legs of tilt mechanism.
d. Fit black #10 flat washer, and loosely thread 10-32 keps nut
onto each screw.
e. Fit black #10 flat washer to 10-32x1-1/4"PPB screw, thread
through blue grommet in rear cover, and screw into tilt
mechanism floating-nut plate.
f.
Tighten three 10-32x1-1/2"PFB screws until three threads
on each screw is visible through tilt mechanism legs.
CAUTION:
It is essential that tilt mechanism belt be adjusted correctly.
Overtightening belt can cause high failure rate.