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Rev. 3.25.23
MARSHALL BEST SECURITY CORPORATION
10005 Cumberland Pointe Blvd., Noblesville, IN 46060 • Phone: 317-806-1180 • Fax: 317-578-2904
www.marshallbestsecurity.com

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Summary of Contents for MBS MB1A Series

  • Page 1 Rev. 3.25.23 MARSHALL BEST SECURITY CORPORATION 10005 Cumberland Pointe Blvd., Noblesville, IN 46060 • Phone: 317-806-1180 • Fax: 317-578-2904 www.marshallbestsecurity.com...
  • Page 2: Table Of Contents

    MB1A Series Service Manual MB1 Series Service Manual Table of Contents Lock Assembly Drawing Index Lever Designs Assembly Chart Roses Lock Assemblies Cylinders Latches 00 Entry Lock Strikes 00(C) Clutch Entry Lock 01 Entry / Office Lock Components Installation Instructions...
  • Page 3: Lock Assembly Drawing Index

    MB1A Series Service Manual MB1 Series Service Manual Lock Assembly Drawing Index The Lock Assembly Drawing Index provides visual representations and textual descriptions of available functions. Page numbers for full trim and chassis drawings are referenced. Outside Inside Clutch (C)
  • Page 4: 00 Entry Lock

    MB1A Series Service Manual MB1 Series Service Manual Lock Assembly Drawing Index Lock Assembly Functions Grade 1 Functions Grade 1 MB1A Series ANSI MB1 Series ANSI Page Number A156.2-2011 A156.2-2011 Part Number ANSI Entry Lock Outside lever is unlocked with key when push-button is pushed.
  • Page 5: 04 Communicating Lock

    MB1A Series Service Manual MB1 Series Service Manual Lock Assembly Drawing Index Lock Assembly Functions Grade 1 Functions Grade 1 MB1 Series ANSI MB1A Series ANSI Page Number A156.2-2011 A156.2-2011 Part Number ANSI Communicating Lock Latch operated by lever from either side.
  • Page 6: 09 Institution Lock

    MB1A Series Service Manual MB1 Series Service Manual Lock Assembly Drawing Index Lock Assembly Functions Grade 1 Functions Grade 1 MB1 Series ANSI MB1A Series ANSI Page Number A156.2-2011 A156.2-2011 Part Number ANSI Institution Lock Outside lever and inside lever are fixed. Entrance by key only.
  • Page 7 MB1A Series Service Manual MB1 Series Service Manual Lock Assembly Drawing Index Lock Assembly Functions Grade 1 Functions Grade 1 MB1 Series ANSI MB1A Series ANSI Page Number A156.2-2011 Part Number A156.2-2011 ANSI Service Station Latch operated by lever from either side except when outside lever is locked by push button from inside.
  • Page 8 MB1A Series Service Manual MB1 Series Service Manual Lock Assembly Drawing Index Lock Assembly Functions Grade 1 Functions Grade 1 MB1A Series ANSI MB1 Series ANSI Page Number A156.2-2011 A156.2-2011 Part Number ANSI Double Dummy Trim Inactive trim for both sides of door.
  • Page 9 MB1A Series Service Manual MB1 Series Service Manual Assembly Chart Item Description ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●...
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  • Page 28: Patio Lock

    MB1A Series Service Manual MB1 Series Service Manual Patio Lock Item No. Q'ty Description Item No. Q'ty Description Deadlatch Push Button Outside Keycam - Patio Thru-bolt Retainer Inside Rose Liner Retractor Outside Rose Inside Hub - Patio Inside Rose Chassis Screws...
  • Page 29 MB1A Series Service Manual MB1 Series Service Manual 10(C) Clutch Patio Lock Item No. Q'ty Description Item No. Q'ty Description Deadlatch Push Button Outside Keycam - Clutch Patio Thru-bolt Retainer Inside Rose Liner Retractor Outside Rose Inside Hub - Clutch Patio...
  • Page 30 MB1A Series Service Manual SFIC Core...
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  • Page 36: 20 Privacy Lock

    MB1A Series Service Manual MB1 Series Service Manual Privacy Lock Item No. Q'ty Description Item No. Q'ty Description Springlatch Push Button Emergency Button Thru-bolt Retainer Outside Keycam - Privacy Inside Rose Liner Outside Rose Retractor Inside Hub - Privacy Inside Rose...
  • Page 37: 20(C) Clutch Privacy Lock

    MB1A Series Service Manual MB1 Series Service Manual 20(C) Clutch Privacy Lock Item No. Q'ty Description Item No. Q'ty Description Springlatch Push Button Emergency Button Thru-bolt Retainer Outside Keycam - Clutch Privacy Inside Rose Liner Outside Rose Retractor Inside Hub - Clutch Privacy...
  • Page 38 MB1A Series Service Manual MB1 Series Service Manual Hospital Privacy Lock Item No. Q'ty Description Item No. Q'ty Description Springlatch Push Button Turn Emergency Button Thru-bolt Retainer Outside Keycam - Hospital Privacy Inside Rose Liner Outside Rose Retractor Inside Hub - Hospital Privacy...
  • Page 39 MB1A Series Service Manual MB1 Series Service Manual 21(C) Clutch Hospital Privacy Lock Item No. Q'ty Description Item No. Q'ty Description Springlatch Push Button Turn Emergency Button Thru-bolt Retainer Outside Keycam - Clutch Hospital Privacy Inside Rose Liner Outside Rose...
  • Page 40: Passage Lock

    MB1A Series Service Manual MB1 Series Service Manual Passage Lock Item No. Q'ty Description Item No. Q'ty Description Springlatch Retractor Inside Hub - Passage Thru-bolt Retainer Inside Rose Liner Chassis Screws Outside Rose Outside Rose Liner Inside Rose Outside Lever...
  • Page 41: Single Dummy Trim

    MB1A Series Service Manual MB1 Series Service Manual Single Dummy Trim Item No. Q'ty Description Item No. Q'ty Description Inside Rose Liner Inside Rose Inside Lever...
  • Page 42: Double Dummy Trim

    MB1A Series Service Manual MB1 Series Service Manual Double Dummy Trim Item No. Q'ty Description Item No. Q'ty Description Inside Rose Liner Outside Rose Inside Rose Outside Lever Inside Lever Outside Rose Liner...
  • Page 43: Exit Latch

    MB1A Series Service Manual MB1 Series Service Manual Exit Latch Item No. Q'ty Description Item No. Q'ty Description Deadlatch Retractor Thru-bolt Retainer Inside Hub - Exit Latch Inside Rose Liner Chassis Screws Outside Rose Outside Rose Liner Inside Rose Outside Lever...
  • Page 44: Communicating Passage Lock

    MB1A Series Service Manual MB1 Series Service Manual Communicating Passage Lock Item No. Q'ty Description Item No. Q'ty Description Inside Hub - Communicating Passage Deadlatch Thru-bolt Retainer Chassis Screws Inside Rose Liner Outside Rose Liner Outside Rose - Blank Inside Rose...
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  • Page 50: Roses

    MB1A Series Service Manual MB1 Series Service Manual Roses Rose Blank Rose Finishes Finishes Finishes Inside Rose Rose Rose - F110 Function Finishes Finishes...
  • Page 51: Cylinders

    MB1A Series Service Manual MB1 Series Service Manual Cylinders Standard Cylinder Standard Cylinder Standard Cylinder For F90 Function For F93 Function Hotel I/C Core - 7 Pin I/C Core - 6 Pin I/C Core - 7 Pin For F93 Function...
  • Page 52: Latches

    MB1A Series Service Manual MB1 Series Service Manual Latches All types of latch with 1" diameter housing and adjustable faceplates for flat or beveled doors. Deadlatch Springlatch Fire Door Deadlatch 3-3/4" Backset Extension Link 5" Backset Extension Link Long Backsets - to join appropriate extension links with 2-3/4" backset latch for required backset.
  • Page 53: Strikes

    MB1A Series Service Manual MB1 Series Service Manual Strikes ANSI Strike ANSI Strike Finishes Finishes Lip Length Lip Length Full Lip Square Corner Strike T-Strike Finishes Finishes Lip Le ngth Lip Le ngth Full Lip 1/4" Radius Corner Strike Finishes...
  • Page 54: Components

    MB1A Series Service Manual MB1 Series Service Manual Components Mounting Screw Strike Screw Latch Screw Finishes Finishes Spacer Spacer Security Disc For I/C Core For I/C Core Pin Wrench Tailpiece Tailpiece For F90 / F109 Function Spanner Wrench Drill Fixture...
  • Page 55: Installation Instructions

    MB1A Series Service Manual MB1 Series Service Manual Installation Instructions HOW TO INSTALL THIS CYLINDRICAL LEVER LOCK Inside Rose Liner Inside Lever Chassis Assy. Inside Rose Machine Screws Thru-bolt Retainer Combo Screws Outside Rose Liner Strike Latch Bolt Standard Cylinder...
  • Page 56 MB1A Series Service Manual MB1 Series Service Manual Installation Instructions 6. INSTALL INSIDE TRIM a. Locate the notch on edge of rose towards bottom and push in until flush with face of door . b. Align lever with spindle and push lever catch e ng ag es with hole.
  • Page 57: Templates

    MB1A Series Service Manual MB1 Series Service Manual Templates Check door thickness before drilling. Drill two 5/16" dia. holes on vertical center line from both sides of door.
  • Page 58: Finishes

    MB1A Series Service Manual MB1 Series Service Manual Finishes Finish Codes and Descriptions ANSI / BHMA Description Finish Code 605 (PB) Bright brass , clear coated US 3 606 (SB) Satin brass , clear coated US 4 Satin bronze , clear coated...
  • Page 59 MB1A Series Service Manual...

Table of Contents