3M 1820 Parts Catalog - Page 13

3M™ Overhead Projector 1800 Illustrated Parts Breakdown Item 1A 1B 2 3 4 5 6 7 8 9 10 11 12A 12B 13 3M Part Number 78-8120-8575-7 78-8120-8576-5 See note See note See note See note See note See note See note See note RO-0038-1149-2 78-8079-8744-7 78-8120-8513-8 78-8120-8514-6 78-8120-8537-7 Arm Assembly Parts List (Serial number 18040828 to 1877398) Description Arm Assembly Kit (includes rectangular post) Note: When stock runs out, replacement is XO-0038-1808-5 Arm / Offset Rectangular Post Assembly Kit Arm, Focus (included in arm assembly kit 78-8120-8575-7) Pad, Insert (included in arm assembly kit 78-8120-8575-7) Plate, Standoff (included in arm assembly kit 78-8120-8575-7) Clamp, friction (included in arm assembly kit 78-8120-8575-7) Pressure Bar (included in arm assembly kit 78-8120-8575-7) Spring, Compression (included in arm assembly kit 78-8120-8575-7) Screws, Shoulder (included in arm assembly kit 78-8120-8575-7) Cap, Focus (included in arm assembly kit 78-8120-8575-7) Knob, Focus Gear, Blue (Not compatible with arms on units prior to serial #18040828) Rack, Focus Rectangular Post, Inverted Arm Rectangular Post, Basic Arm Arm / Post / Inverted Singlet Head Assembly (Not shown) Qty. 1 1 2 2 1 1 1 2 2 1 1 1 1 1 1 NOTE: This item is not available for purchase as an individual part. You must purchase the entire arm assembly kit. © 3M 2007 13