3M
™
Overhead Projector 1800
Illustrated Parts Breakdown
© 3M 2004
11
Arm Assembly Parts List
(Serial number 18040828 and above)
Item
3M Part Number
Description
Qty.
1A
78-8120-8575-7
Arm Kit (includes basic post)
1
1B
78-8120-8576-5
Arm / Offset Post Assembly Kit
1
2
- - -
Arm, Focus (must order 78-8120-8575-7)
2
3
See note
Pad, Insert
2
4
See note
Plate, Standoff
1
5
See note
Clamp, friction
1
6
See note
Pressure Bar
1
7
See note
Spring, Compression
2
8
See note
Screws, Shoulder
2
9
See note
Cap, Focus
1
10
RO-0038-1149-2
Knob, Focus Gear, Blue
1
11 78-8079-8744-7
Rack,
Focus
1
12A
78-8120-8513-8
Post, Inverted Arm
1
12B
78-8120-8514-6
Post, Basic Arm
1
13
78-8120-8537-7
Arm / Post / Inverted Singlet Head Assembly (Not shown)
1
14
78-8120-8539-3
Arm Assembly, Inverted Triplet Head Assembly (Not shown)
1
NOTE:
At the time of printing, this item is not available for purchase as an individual part.