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Loosen until collet and pulley assembly can be removed from
tilt tube (
).
Figure 3-25: Pulley and Collet Assembly Removal and Replacement
Step 5. Install collet on new pulley as required. Ensure collet is oriented
to match "D" shape in pulley.
Step 6. At four collet studs, apply Loctite #425.
Step 7. Install four 6-32 acorn nuts onto collet and tighten enough to hold
pieces together.
Step 8. Slide pulley (with collet) fully down onto tilt tube, placing tilt
mechanism belt on pulley at same time.
CAUTION: Do not overtighten acorn nuts or pulley may crack.
Step 9. Using 5/16 inch nutdriver, fully tighten, but do not overtighten,
acorn nuts in a cross pattern.
Step 10. Re-tighten three 6-32x5/16" PPZ screws and #6 flat washers that
secure tilt mechanism to yoke leg. Retighten belt (refer to
Tilt Belt Tension Adjustment” on page 124
as necessary).
Step 11. Re-assemble luminaire by doing steps 2 and 3 in reverse.
Collet
Driven Pulley
Acorn Nut
Tilt Tube
Apply Loctite 425