Troubleshooting With Vr2 Diagnostic Codes; One Bar - Low Battery Voltage; Two Bars - Left Motor Disconnected - Quickie QM-7 Series Service Manual

Troubleshooting with VR2 Diagnostic Codes

One Bar - Low Battery Voltage

This code could indicate discharged batteries,
failed batteries, or poor battery connections.
Begin by recharging the batteries and then refer
to 3.2 to check batteries and connections.

Two Bars - Left Motor Disconnected

1. Check that the batteries are fully charged
and in good condition.
connections. Check the connections to the left
motor, look for a loose or damaged connector.
2. Otherwise, check the brushes on the left
motor Using a Flat head screwdriver (figure
3.4.1) remove the brush cap to access the brush
(figure 3.4.2). Refer to section 6 (Motor Brush
Inspection). Ensure brush is not excessively
worn, (brush need to be at least 1/2" long) note
taper (figure 3.4.3) on brush for re-installation
(figure 3.4.4) Replace as required.
PAGE 3.4
JANUARY 2012
Section 3
Check all cables and
Fig 3.4.3
QM-7 SERIES SERVICE MANUAL
Fig 3.4.1
Fig 3.4.2
Fig 3.4.4
SUNRISE MEDICAL