QM-7 SERIES SERVICE MANUAL
PAGE 4.8
JANUARY 2012
SUNRISE MEDICAL
Section 4
3. Locate the creep micro-switch mounted at the
rear of the actuator (A) (
fi
gure 4.8.1).
Note: The creep micro-switch may be seen from
the top of the seating system on the right rear of
the actuator. It may be necessary to remove the
seat pan to access the switch.
5. Lower the tilt system.
7. Disconnect the connector leading to the control
module.
8. Test the micro-switch wiring by performing the
following test.
a. Ensure that the seat is in the full down position.
(No Tilt)
b. Use Multimeter and measure continuity between
the indicated pins (
fi
gure 4.8.3) on the 6-pin
connector mounted on the tilt. When seating is
in the untilted position, the indication should be
closed (Resistance) (
fi
gure 4.8.4).
c. If it is open, (No Resistance) replace the micro-
switch assembly. Refer to Tilt Actuator and Micro-
Switch Removal section of this manual.
d. Retest as necessary.
fig. 4.8.1
A
fig. 4.8.2
B
fig. 4.8.3
fig. 4.8.4
6. Locate the 6-pin connector (B) at the rear of the
tilt unit (
fi
gure 4.8.2).
4. Manually operate the creep micro-switch while
observing the hand control or Omni for the turtle
symbol to go on and go off with the micro-switch
operation. If the symbol changes, the problem
is in the programming. Contact Sunrise Medical
Technical Service for assistance. If the symbol
does not change, proceed to step 5.
9. If the test in step 8 passes, replace in this
order:
a. Cable leading from tilt to control module.
b. Control module
10. Retest as necessary