prime mover smx45 Master Service Manual page 210

F-code Section
PT S5.2
Swing Out Battery Pack
Version no T-code
002 SMX
208
Return
C-code
5110
WARNING
a. Diodes
b. Capacitor
Master Service Manual
Before checking components disconnect
AC power supply, unplug batteries, and
discharge capacitor with an insulated
screwdriver. All tests should be made with
the charger disconnected unless otherwise
stated. Use extreme caution when a test
calls for the power to be "on" at the charger.
(1) A quick test for shorted diodes may be
made by connecting the leads of the
ohmmeter to the charger battery connector
terminals and testing for continuity in each
direction. If the test shows open, the DC
circuit breaker, may be open. To bypass an
open DC circuit breaker, connect the test
leads to the positive and negative lugs
behind the circuit breaker and reverse the
ohmmeter probes. A shorted diode will
show continuity in both directions. Retest
the diodes individually to determine which
diode is bad.
(2) Disconnect diode flexible leads to isolate
the diodes from the circuit.
(3) Use an ohmmeter to test the continuity of
each diode in both directions. A shorted
diode will show continuity in both directions
and an open diode will show no continuity in
either direction. A good diode will show
continuity in only one direction.
(4) Connect diode leads in charger.
(1) Discharge capacitor.
(2) Disconnect the capacitor leads.
(3) Set ohmmeter R x 10,000 scale and
connect ohmmeter leads to terminals on
capacitor. When needle (or display) quits
moving, reverse leads.
2006-08-08