Brother HL-L9300CDW Service Manual page 264

(11) Release the Hook and remove the Gear 33 from the LT frame L unit.
Gear 33
<Left side>
Hook
(12) Remove the Extension spring from the Spring hook.
(13) Release the Hook and remove the Gear 46/55 from the LT frame L unit.
LT frame L unit
Hook
<Left side>
Extension spring
Fig. 3-174
Gear 46/55
Spring hook
Fig. 3-175
3-123
LT frame L unit
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