Parts - Multi-Cassette Unit (MCU) / Plenum

There are two types of MCUs: Chin type MCUs (left photo), and the newer FPL type MCUs (right photo).
  
FPL MCUs started in April 2005. See FCO CA06405 for details.

Item	Stored Service Parts	Reference	Notes/Photos
MCU assembly, left eject	500-00440A	BOM | DWG
MCU assembly, right eject	500-00441A	BOM | DWG
Common MCU assembly	500-00442B	BOM | DWG
MCU panel kits			See the Panels page.
Right eject plenum	500-00444B	BOM | DWG	Series 3 and before DM and wedgemaster pickers
Right eject plenum	500-05998A	BOM | DWG	Series 4 devices DM and wedgemaster pickers
Left eject plenum	500-00443B	BOM | DWG	Series 3 and before DM and wedgemaster pickers
Left eject plenum	500-05997A	BOM | DWG	Series 4 devices DM and wedgemaster pickers
Plenum cylinder assembly for DM picker	500-03087A	DWG | DWG
MCU power box	500-00701A	BOM | DWG
MCU power supply 1 24V, 200W Meanwell p/s	512-00378A		System logic power to pneumatics and relays Located in MCU power box. As per ECO CA10443, Astec power supply (13-5094) is replaced with the Meanwell power supply.
MCU power supply 2 24V, 200W, switched Meanwell p/s	512-00379A		Power to SSR DC motor Located in MCU power box. As per ECO CA10443, Astec power supply (13-5094) is replaced with the Meanwell power supply.
MCU weldments assembly	500-00529A	BOM | DWG
MCU 6383 plateside locator assembly	500-00703A	BOM | DWG
MCU motor	184-00074		See Motors page for details
MCU motor driver	601-00052
Lock and eject guide rod	252-01594A 252-01594B	Chin type MCU FPL type MCU
Cylinder 20mmx6in.	330-00031	Chin type MCU
Cylinder 20mmx3in. and fittings	500-02406A	FPL type MCU
Fan	500-00845A	BOM | DWG	Includes air flow cylinder 55-1160
Service access door hinges	59-3336		Part of service access door kit 518-00383B
MCU cassette, 6383	500-00520A	BOM | DWG
MCU cassette lock & ejector, right eject	500-01106A	BOM | DWG
MCU cassette lock & ejector, left eject	500-01107A	BOM | DWG
MCU jackscrew assembly	500-00522A	BOM | DWG	Part of drive system kit 518-00334A.
Jackscrew nut platform assembly	500-00523A	BOM | DWG	Part of drive system kit 518-00334A.
Jackscrew nut assembly	500-03683A	DWG 500-00523A items 20 & 30	Consists of two parts: square flange (252-01627A-B) and brass nut (252-04271A-A). These two parts must be pre-assembled before shipped as per 500-00523A
Cassette V-rollers	57-8277B		The white roller wheels mounted at the front of the MCU, outside the shutter, that the cassette rolls on during loading and unloading.
MCU cable channel	518-00457A	BOM
FAB,SPRING,CASSETTE BIAS,MCU,MTA	252-04899A	MCU Cassette Position Spring	Used to hold the cassette parallel to the plenum when the cassette is in the pick position.
MCU manifold	500-00352A	DWG	Valves: "cassette door open" Cassette lock/eject "cart pin up" "platefloat on" "picker mirror retract" "Separator on" unused unused [Names in quotation marks are identical to the firmware command.]
MCU electrical kit	518-00427A	BOM
MCU cables kit	518-00355A	BOM	See also the Cables page
MCU Service Override Panel	500-01150A	DWG	Also known as the JOG panel. See the Panels page.
MCU door shutter	252-03179B	500-00528B Chin MCU only
MCU shutter seat	252-03186A	500-00442A Chin MCU only
Loctite ViperLube grease	404-00135		Do NOT use any other grease on the MCU jackscrew. Also, do not use this grease on the Trendsetter VLF AL MCUs.
Loctite disposable lubricator	404-00180		Must be replaced every 12 months. Remove the clear plastic switch cover and switch the LITE switch and the 12M switch to the on position. Record the date of installation on the lubricator.