COUGHASSIST CA-3000 Service Manual

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COUGHASSIST

SERVICE GUIDE

Models CA-3000, CA-3200

Models CM-3000, CM-3200

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Summary of Contents for COUGHASSIST CA-3000

Page 1 COUGHASSIST SERVICE GUIDE Models CA-3000, CA-3200 Models CM-3000, CM-3200...
Page 2: Table Of Contents
VALVE ASSEMBLY REPLACEMENT ........................6 VALVE ACTUATOR MOTOR REPLACEMENT (CA MODELS ONLY)..............7 MOTOR BLOWER REPLACEMENT ........................8 PROPER GROUND WIRE ASSEMBLY ....................... 9 FINAL TEST PROCEDURE ..........................10 COUGHASSIST SCHEMATICS MODELS CA-3000, CA-3200………………………..……………………………12 COUGHASSIST SCHEMATICS MODELS CM-3000, CM-3200………………………..………………………..…14 Page 2 J.H. Emerson Co.
Page 3: Front Panel Assembly Removal
This Service Guide is for use only by qualified technical personnel. WARNING - Always unplug the CoughAssist from any electrical power before servicing. FRONT PANEL PARTS REPLACEMENT - Including Front Panel, Circuit Board, Pressure Gauge, Paddle Switch (CA models only), and Front Label The only front panel parts that may be replaced without removing the Top Cover are the six control knobs (three on the CM models), and the Manual Control Lever on the CM models only.
Page 4: Circuit Board Replacement
PLASTIC TUBE, 1/8”ID x 8” SCREW, PLASTITE #8X1/2” 829-3108 (3 EACH) 325-0252 KNOB, MANUAL (CM only) 632-3004 KNOB (2 EACH) FRONT PANEL ASSEMBLY 325-9202 FOR CA-3000 FRONT PANEL ASSEMBLY 325-9222 FOR CM-3000 FRONT PANEL ASSEMBLY 325-9226 FOR CA-3200 FRONT PANEL ASSEMBLY 325-9227 FOR CM-3200 Slide the panel assembly towards the front, as shown in Figure 2.
Page 5: Pressure Gauge Replacement
PRESSURE GAUGE REPLACEMENT To replace the Pressure Gauge, first remove the Top Cover, Front Panel Assembly and Circuit Board, as described above. Remove the four 4-40 screws holding the Front Panel Spacer to the bracket, as shown in Figure 4. Figure 4 Item Part No.
Page 6: Front Panel Label Replacement
FRONT PANEL LABEL REPLACEMENT To replace the Front Panel Label and spacer, first remove the Top Cover, Front Panel Assembly and Circuit Board, as described above. Remove the four 4-40 screws holding the Front Panel Spacer to the bracket, as shown in Figure 4. Replace with a new spacer with label.
Page 7: Valve Actuator Motor Replacement (Ca Models Only)
Figure 6 Item Part No. Description 325-9203 BOTTOM HOUSING ASSEMBLY 829-2110 SCREW, PLASTITE #6 5/8” (2 EACH) MAIN POWER WIRING HARNESS WITH 325-9218 POWER INLET 621-2004 FUSE, 3 AMP (2 EACH) 628-1110 FUSE HOLDER (2 EACH) 628-1109 POWER ENTRY MODULE 223-1009 FLEX TUBE, 9”...
Page 8: Motor Blower Replacement
Item Part No. Description Figure 7 325-0230 TORSION SPRING 633-2027 SPACER 414-2001 CABLE CHAIN 325-0281 SPROCKET, LARGE SCREW, BINDING HEAD 8-32 x1/4” 805-3104 (4 EACH) 325-0217 BRACKET, MOTOR MOUNT CAPACITOR (PART OF ITEM 9 ACUTATOR MOTOR ASSEMBLY) 801-3108 SCREW, 8-32 x 1/2” 840-3100 NUT, 8-32 854-3100...
Page 9: Proper Ground Wire Assembly
PROPER GROUND WIRE ASSEMBLY The green wires with yellow striping inside of the CoughAssist are electrical ground leads and serve an important safety feature. There are two such wires attached to the bottom panel, and one attached to the front panel bracket.
Page 10: Final Test Procedure
FINAL TEST PROCEDURE After any disassembly of the CoughAssist, the unit should be tested for proper operation before being put back into service. This test can be done without the top cover on in order to gain access to the blower pressure adjustment potentiometers.
Page 11 Remove rubber stopper from the patient outlet. Check the flow by actuating the Manual Control Lever to Inhale and note the flow of air out of the unit. Release the Manual Control Lever. Set Inhale Flow to maximum (counterclockwise), and repeat the test. Note that the flow out of the unit has increased markedly. Automatic timing function test (CA models only) - Set the pressure to minimum.
Page 12: Coughassist Schematics Models Ca-3000, Ca-3200
Page 12 J.H. Emerson Co.
Page 13 J.H. Emerson Co. Page 13...
Page 14: Coughassist Schematics Models Cm-3000, Cm-3200
Page 14 J.H. Emerson Co.
Page 15 J.H. Emerson Co. Page 15...
Page 16 J.H. Emerson Co. 22 Cottage Park Avenue Cambridge, MA USA 02140-1601 Phone: 800-252-1414 or 617-864-1414 Fax: 617-868-0841 Email: info@jhemerson.com Web: www.coughassist.com 910-1114-2...

This manual is also suitable for:

Ca-3200 Cm-3000 Cm-3200