Owner`s manual

38 | 2008 AFG Service Seminar [rev 1.3]
Section Two | Voltage Checks
>> Incline Wire Voltage Chart
Small Connector
Wire
Color
Function Before Start At 0.0% At 10% Physical
Symptoms-If Wire
Cut
ENG 1 Test Results
Blue Ground n/a Ground n/a Ground n/a Ground Constant up incline,
no down incline.
Incline value 0, no down incline.
Brown Incline Pot 2.3 vdc* 0.6 vdc* 0.6 vdc* Constant down in-
cline, no up incline.
Incline value at max, no up
incline.
Orange VCC 2.4 vdc
constant
2.4 vdc constant 2.4 vdc constant Constant down in-
cline, no up incline.
Incline value started one less
than max, pressed up once and
value maxed out, thereafter no
up incline.
* The voltage changes as the incline changes
Large Quick Connects
Wire
Color
Function Before
Start
After Start,
Not Inclining
Or
Declining
While
Inclining
While
Declining
Physical
Symptoms-If Wire
Cut
ENG 1 Test Results
Black
w/white
as
ground
Incline Up 0.15 vac 0.15 vac 171 vac 120 vac Up incline works, no down
incline.
Up incline works, down does not.
Value increases, does not decrease.
Red
w/white
as
ground
Incline
Down
0.15 vac 0.15 vac 120 vac 186 vac Down incline works, no up
incline.
Down incline works (until value 0), up
does not. Value decreases to 0 then
no down incline, does not increase.
Red
w/black
as
ground
Ground 0.03 vac 0.03 vac 219 vac 228 vac Neither up nor down func-
tion.
Neither up nor down function. Value
does not change.
Parameter: Use functioning incline motor and remove one wire at a time to observe malfunction