eschmann T20-a - Page 4

P4/54 T-SM47j
6.6.7 Break motor . . . . . . . . . . . . . . . . . . . . . . 43
6.6.8 Tilt and Trendelenburg motors . . . . . . . . 43
6.6.9 Telescopic column assembly . . . . . . . . . 43
6.6.10 Break potentiometer loom . . . . . . . . . . . 43
6.6.11 Tilt potentiometer loom . . . . . . . . . . . . . 43
6.6.12 Trendelenburg potentiometer . . . . . . . . . 43
6.6.13 Height potentiometer loom . . . . . . . . . . . 43
6.6.14 Traverse motor loom & m’switches . . . . . 45
6.6.15 Connector blocks & looms . . . . . . . . . . . 45
6.6.16 Switch & accessory panel looms . . . . . . 45
6.6.17 Column energy chain and loom . . . . . . . 45
6.6.18 Break gearbox loom . . . . . . . . . . . . . . . . 46
6.6.19 Batteries, table & handset . . . . . . . . . . . 46
6.6.20 Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . 46
6.6.21 Table infrared code change . . . . . . . . . . 46
6.6.22 Infrared handset code change . . . . . . . . 46
6.6.23 Handset service . . . . . . . . . . . . . . . . . . . 47
6.6.24 Processor PCA . . . . . . . . . . . . . . . . . . . 47
6.6.25 Standby panel and loom . . . . . . . . . . . . 47
6.6.26 Battery management reconditioning . . . . 47
6.7 Function tests . . . . . . . . . . . . . . . . . . . . . . . . . 47
6.7.1 Batteries . . . . . . . . . . . . . . . . . . . . . . . . 47
6.7.2 Battery charger . . . . . . . . . . . . . . . . . . . 47
6.7.3 Corded handset . . . . . . . . . . . . . . . . . . . 47
6.7.4 Infrared handset . . . . . . . . . . . . . . . . . . . 47
6.7.5 Footswitch control . . . . . . . . . . . . . . . . . 47
6.7.6 Standby control panel . . . . . . . . . . . . . . 47
6.7.7 Sections (head and leg) . . . . . . . . . . . . . 47
6.7.8 Base pedals . . . . . . . . . . . . . . . . . . . . . . 48
6.7.9 Cycle of movements . . . . . . . . . . . . . . . 48
6.8 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Figures
1.0 Identification of main parts . . . . . . . . . . . . . . . . . 6
2.1 Major dimensions and movements . . . . . . . . . . 10
2.2 Maximum patient weights . . . . . . . . . . . . . . . . 11
2.3 Maximum patient weights . . . . . . . . . . . . . . . . 12
3.1 Schematic diagrams . . . . . . . . . . . . . . . . . . . . 15
6.1 Table covers general arrangement . . . . . . . . . . 22
6.2a Table base general arrangement (ext’l catch) . . 26
6.2b Table base general arrangement (int’l catch) . . . 27
6.2c Table base general arrangement (int’l catch
and increased height) . . . . . . . . . . . . . . . . . . . . 28
6.3 Table column general arrangement . . . . . . . . . . 31
6.4 General arrangement, head & leg section. . . . . 34
6.5 Table long trunk general arrangement . . . . . . . . 37
6.6 Table short trunk general arrangement . . . . . . . 38
6.7 Table traverse general arrangement . . . . . . . . . 40
6.8 Table base main electrical components . . . . . . 42
6.9 Handset button functions and serial labels . . . . 44
6.10 Old and new infrared Handset buttons . . . . . . . 44
A1 T20-a Schematic diagram - Base Section . . . . 51
A2 T20-a Schematic diagram - Pedestal Section . . 52
A3 T20-a Schematic diagram - Trunk Section . . . . 53
Appendix 1
Torque conversions . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Appendix 2
Application software guide . . . . . . . . . . . . . . . . . . . . . 50
Appendix 3
T20-a Table schematics . . . . . . . . . . . . . . . . . . . . . . . 51
Appendix 4
Electrical safety checks . . . . . . . . . . . . . . . . . . . . . . . 54