Cushman HAULER 800 2012 Technician's Repair And Service Manual page 87

ELECTRONIC SPEED CONTROL - HAULER 1000
Read all of Section B and this section before attempting any procedure. Pay particular attention to all Notices, Cautions, Dangers and Warnings.
Turn the key switch to 'OFF' and place the direction
selector in neutral before disconnecting power by
removing the BL- connection to the battery. Always use
insulated wrenches when working on batteries. To
check for continuity, set the DVOM to the KΩ setting and
select 'Continuity'. The meter will give an audible signal
when it detects continuity. If the meter does not have a
continuity setting, set it to KΩ, the meter will indicate "0"
when it detects continuity.
Testing a Switch for Continuity
Place one probe on one contact of the switch, place the
second probe on the second terminal of the switch (Ref.
Fig. 18 on Page F-21).
Actuating a normally open (NO) switch will cause the
DVOM to show "0" or give an audible indication when
the switch is operated. A normally closed (NC) switch
will cause the meter to show "0" or give an audible indi-
cation when the probes are attached without activating
switch. The audible indicator will stop and the meter dis-
play will indicate a value greater than "0" when the
switch is activated.
Fig. 18 Continuity Check of Switch
The change in display or audible indicator demonstrates
that the switch is functioning.
Testing a Solenoid for Continuity
Place one probe on one of the large terminals and the
other probe on the second large terminal (Ref. Fig. 19
on Page F-21). If the meter shows "0" or gives an audi-
ble indication, the solenoid terminals are "welded"
closed and the solenoid must be replaced.
If the continuity test indicates that contacts are not
"welded" and the wiring to the solenoid coil is good, the
coil has failed and the solenoid must be replaced.
The following diagrams will assist in servicing the vehi-
cle. By utilizing the Fault Codes, considerable time will
be saved in determining the probable vehicle operating
malfunction. The vehicle power and control wiring dia-
gram is included for your convenience in tracing the
electrical wiring (Ref. Fig. 22 on Page F-24). The follow-
ing 6 flow charts will assist in diagnosing and correcting
Press to problems not diagnosed through the Fault Codes.
activate
switch
Repair and Service Manual
Fig. 19 Continuity Check of Solenoid
TROUBLESHOOTING DIAGRAMS
B
B
Page F-21