Issue link: http://alpine.uberflip.com/i/1399321
50 ALS 4.0 XE P R O D U C T M A N U A L EN Figure 135 Figure 136 Figure 137 L1 Assembly – APN 34325 L1 Belt – APN 29107 Shafts – APN 29988 Receiver – APN 23141 L1 motor – APN 41020 Bearing (not pictured) – APN 29987 Pusher Air Cylinder (not pictured) – APN 29761 Door Interlock Mechanism: Door Switch – APN 38208 Door Switch Key – APN 38207 Drive Shaft – APN 31026