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Chapter Three – Troubleshooting Guides
43
3.6 HEAD SECTION (FOWLER) RAISE/LOWER TROUBLESHOOTING GUIDE
NOTE
Before proceeding, ensure all cables and connections are intact (visually and mechanically). To check for +5
VDC at various points called out in the troubleshooting, use digital ground as a reference point (negative side
of C18 on CPU litter board). When measuring 110 VAC at any point, use only the neutral (white) side of the
power line as a reference point. DO NOT use digital ground as a reference point when measuring 110 VAC.
PROBLEM/SYMPTOM
SOLUTION(S)
Head section does not raise electrically.
Head section does not lower electrically.
A. Check power junction board (p/n 3000–300–
916) for 110 VAC output at connector J1, pin 2,
input at connector J1, pin 2 (see page 199 for
board location). If output 110 VAC is not present
while input is present, check fuse F1. Replace
fuse and/or power junction board, if necessary.
B. Check for 110 VAC to Fowler motor when any
Fowler up/down switch is pressed. Check for 110
VAC at connector J2, pins 2 & 5 for Fowler down
and pins 3 & 4 for Fowler up. If voltage is present
and the motor doesn’t operate, see step E. If volt-
age is not present, check for 110 VAC through the
CPU litter board: connector P1, pin 18 input, con-
nector P1, pin 7, for Fowler up and pin 6 for Fowl-
er down (see page 199 for board location). Re-
place litter CPU board, if necessary (see p. 115).
C. Check cam switches (p/n 3000–300–40) and
cam mechanism for proper operation. The cam
mechanism determines travel limits for Fowler mo-
tion. Adjust and replace, as needed (see page
98). Check the cam, cam guide, and wire linkage.
Switches may be verified by unplugging limit
switch cable from litter CPU and using a continuity
tester.
D. Check keyboards in siderails, foot boards, and
pendant control for +5 VDC potential at switches
and verify switches are functioning properly.
Points on keyboard to check for +5 VDC:
Foot board keyboard (p/n 3000–501–947) – pin 1
of connector P1.
Left inner siderail keyboard (p/n 3000–400–917)
pin 10 of connector P1 (use pin 7 as a ref. point).
Right inner siderail keyboard (p/n 3000–400–901)
pin 10 of connector P1 (use pin 7 as a ref. point).
Left outer siderail keyboard (p/n 3000–400–931)
pin 4 of connector J1.
Right outer siderail keyboard (p/n 3000–409–913)
pin 1 of connector J1. Replace cables and key-
boards, if necessary (see pages 200, 201, 216 &
217 for locations). Verify cables and connections
before replacing boards.
Check litter CPU board (p/n 3000–300–941) for +5
VDC at connector P14, pin 5. If voltage is not
present, check fuse 1. Replace, if necessary (see
page 115).
Содержание Secure 3000
Страница 78: ...Notes 78 ...
Страница 106: ...Notes 106 ...
Страница 110: ...Chapter Five Maintenance Procedures Litter 110 5 6 CPR CONTINUED A B C K J B Area 1 B D L A G H ...
Страница 111: ...Chapter Five Maintenance Procedures Litter 111 5 6 CPR CONTINUED E E F F VIEW 1 VIEW 2 TOP VIEW ...
Страница 129: ...Appendix A Assembly Drawings and Parts Lists 129 A 1 BASE DRAWINGS BASE ASSEMBLY P N 3000 200 000 ...
Страница 131: ...Appendix A Assembly Drawings and Parts Lists 131 A 1 BASE DRAWINGS CONTINUED BASE ASSEMBLY P N 3000 200 000 CONTINUED ...
Страница 139: ...Appendix A Assembly Drawings and Parts Lists 139 A 1 BASE DRAWINGS CONTINUED FOOT END BRAKE ASSEMBLY P N 3000 200 350 ...
Страница 141: ...Appendix A Assembly Drawings and Parts Lists 141 A 2 LITTER DRAWINGS LITTER ASSEMBLY MECHANICAL P N 3000 300 399 ...
Страница 147: ...Appendix A Assembly Drawings and Parts Lists 147 A 2 LITTER DRAWINGS CONTINUED LITTER COVER ASSEMBLY P N 3000 300 25 ...
Страница 184: ...Notes 167 2 ...
Страница 241: ...Appendix B Circuit Board Locations Bed Wiring Diagrams 222 This page intentionally left blank ...
Страница 243: ...Appendix B Circuit Board Locations Bed Wiring Diagrams 224 This page intentionally left blank ...
Страница 249: ...DH 3 94 3000 000 020 REV B 420 Alcott Street Kalamazoo MI 49001 ...