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3M™ Overhead Projector 1800 Illustrated Parts Breakdown
© 3M 2007 5
Quick Reference Parts Index
Description (By machine location) Part Number Section No. Item No.
Inverted Singlet Head Module 78-8120-8508-8 1 1
Inverted Triplet Head Module 78-8120-8509-6 1 2
Inverted Mirror Module 78-8120-8498-2 1 3
Light Shield Kit 78-8120-4070-3 1 9
Open Singlet Head Module 78-8120-8507-0 2 1
Open Mirror Module 78-8120-8499-0 2 2
Closed Head Module, Singlet 78-8120-8506-2 3 1
Closed Head Module, Doublet XO-0038-1786-3 3 2
Arm/Basic Post Kit 78-8120-8575-7 4 & 5 1A
Arm/Offset Post Kit 78-8120-8576-5 4 & 5 1B
Square Post with Arm Assembly XO-00381805-5 6 1
Square Post Mounting Hardware Kit 78-8121-4789--6 6 2
Post Pivot Kit 78-8120-8516-1 7 1
Post, Basic Arm 78-8120-8514-6 7 2
Offset Post Pivot Kit 78-8120-8515-3 7 3
Post, Inverted Arm 78-8120-8513-8 7 4
Top Cover Modules (U.S. and A4) See Sections 8 & 9 8 & 9 1A – 1D
Fresnel Lens, Dual Element – 182.5 mm 78-8120-8504-7 8 & 9 6
Fresnel Lens, Dual Element (Inverted Singlet) – 175.3mm 78-8120-8502-1 8 6
On/Off Button Kit, Red 78-8120-8563-3 8 & 9 8A
On/Off Button Kit, Blue 78-8120-8564-1 8 & 9 8B
Base Mirror Module (EVD/FNT) 78-8120-8511-2 10 1
Base Mirror Module (ENX/FXL) 78-8120-8512-0 10 2
Base Module 78-8120-8517-9 10 8
Lamp Housing Kit 78-8120-8520-3 10 9
Transformers See Section 10 10 4A – 4D
Power Cord, 120V (U.S. only) 78-8120-3184-3 10 11
ENX/FXL Single Lamp Socket 78-8120-3197-5 11 1
ENX/FXL Dual Lamp Socket - Right 78-8120-3196-7 12 1
ENX/FXL Dual Lamp Socket - Left 78-8120-4046-3 12 1
FNT Single Lamp Socket 78-8120-4003-4 13 8
FNT Dual Lamp Socket 78-8120-3193-4 14 4
EVD Dual Lamp Socket 78-8120-3193-4 15 4
Lamp, ENX 78-8011-1186-1 11 & 12 4A, 5A
Lamp, FXL 78-8073-7100-6 11 & 12 4B, 5B
Lamp, FNT 78-8054-1175-4 13 & 14 3, 5
Lamp, EVD 78-8079-8791-8 15 5
120V Fan Motor Assembly XO-0038-0869-8 17 4
230V Fan Motor Assembly XO-0038-0868-0 17 5
Roller Kit See Section 18 18 1 – 4