A-dec 500 User Manual 97-110
85.0816.00 Rev A 2004-11 (PCA 04002.12) Page 97
A-dec Service Guide, Vol. II Assistant’s Instrumentation
The A-dec 551 assistant’s instrumentation is equipped with either a short or long
assistant’s arm for easy positioning of instrumentation. Both arms are equipped with a
touchpad and a holder assembly with independent positioning features. The solids
collector is also a part of the assistant’s instrumentation, located at the base of the arm.
This section provides information related to servicing, maintenance, and adjustments.
Detail on how to service the assistant’s instrumentation and troubleshoot specific
problems is presented. For information on service parts, see the Genuine A-dec Service
Parts Catalog or contact A-dec customer service.
Page 98 85.0816.00 Rev A 2004-11 (PCA 04002.12)
Assistant’s Instrumentation Feature A-dec Service Guide, Vol. II
Tip-Up Feature
A pivot joint, located close to the support link, allows the entire arm to tip-up, when it contacts an object.
Figure 67. Assistant’s arm demonstrating the tip-up feature.
Pivot joint
85.0816.00 Rev A 2004-11 (PCA 04002.12) Page 99
A-dec Service Guide, Vol. II Assistant’s Instrumentation Components
How to Identify A-dec 551 Assistant’s Instrumentation Components
Figure 68. Assistant’s long arm assembly with a single 3 position holder assembly.
Item #
Part Number
Description
1
77.0315.00
Long arm with single 3 position standard holder
—
77.0316.00
Long arm with single 4 position standard holder
—
77.0317.00
Long arm with dual 2 position standard holder
—
77.0322.00 Short arm with single 3 position standard holder
—
77.0323.00 Short arm with single 4 position standard holder
—
77.0324.00 Short arm with dual 2 position standard holder
2
77.0121.00 Vacuum pipe
3
035.053.01
O-ring, red, pkg 10
4
002.094.02 Buttonhead socket screw 10-32 x 1/4
5
77.0341.00 Vacuum connector kit
2
3
1
4
5
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Assistant’s Holders A-dec Service Guide, Vol. II
How to Identify Assistant’s Holder
There are two types of assistant’s holders, standard and electric.
Standard Holder
The touchpad does not need to be removed when disassembling the standard holder.
Item #
Part Number
Description
1
99.0649.00
Turret
2
99.0661.00
Turret insert
3
99.0660.00 Axle
4
99.0653.01
Holder, SE, syringe kit
—
99.0650.01
HVE standard kit
5
99.0648.00
End cap assembly
1
2
4
5
3
Figure 69. Identifying assistant’s holder components.
85.0816.00 Rev A 2004-11 (PCA 04002.12) Page 101
A-dec Service Guide, Vol. II Flow Diagram
Assistant’s Standard Holder Flow Diagram
This flow diagram describes the plumbing and electrical connections of the assistant’s standard holder assembly and solids collector.
Syringe air/water from
chair air/water manifold
Syringe
SE
HVE
Solids
collector
Touchpad
To v acuum drain (floor box)
300 watt power supply
(chair)
Touchpad
power cable
Data line
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