REPAIR STEPS
SOLUTION
DIAGRAMS
PROBLEM
MI91.2144
01JUL98
Part 7
While pushing a
jack control switch
to RETRACT:
a. The pump is run-
ning.
Refer to Part 3d of the Repair Steps.
REFER TO MP85.3455
REFER TO MP85.3454
REFER TO MP85.3455
REFER TO MP85.3455
Part 5 continued
f. For straight-
acting jacks.
red warning light
will not come on
when the jack is
extended 2 inches
or more.
Ground the warning switch wire at the jack. If the light comes on,
check the ground for the warning switch. If the ground is ok, replace
the warning switch.
If the light does not come on, unplug the warning light wires at the
control panel. Use a test light to ground the pin for the light that will
not come on. If the light comes on, the problem is the wire. If the light
does not come on, check the bulb. If the bulb is ok, repair or replace
the control panel.
Part 6
The yellow lights
will not work prop-
erly.
a. A yellow light will
not come on.
Unplug the sensing unit plug from the control panel. With the panel
on, use a test light to ground the pin for the yellow light that does not
work. If the light does not come on, check the bulb, then replace the
panel if the bulb is ok. If the light does come on, replace the sensing
unit.
b. No yellow lights
come on.
Unplug the sensing unit plug from the control panel. With the panel
c. Yellow lights will
not go out.
Unplug the sensing unit plug from the control panel. If the lights do
not go out, replace the control panel. If the lights go out, use a test
light to ground pins 4, 5, 6 and 7. If the lights do not work properly,
replace the panel. If the lights work ok, replace the sensing unit.
d. The vehicle is not
level with all the
yellow lights out.
Adjust the sensing unit according to the level sensing unit adjustment
sheet.
REFER TO MP85.9505
SEE ELECTRICAL
CONNECTION
DIAGRAM
CONTROL PANEL
CONTROL
PANEL
RETRACT
ON FOR MORE THAN TWO OUT OF EVERY FOUR MINUTES.
CAUTION!
EMERGENCY
MASTER
WORKING UNDER VEHICLE. MANUAL USE LIMITED TO 4 MIN. WITHOUT COOL DOWN
TO PREVENT DAMAGE FROM OVERHEATING, DO NOT HOLD SWITCH
LEFT REAR
OFF
ON
LOW
VOLTS
HOLD
EXTEND
EXTEND
RETRACT
HOLD
RETRACT
HOLD
EXTEND
HORIZONTAL
CONTROL PANEL
RIGHT FRONT
VERTICAL
BLOCK FRAME SECURELY BEFORE CHANGING TIRES OR
MANUAL OPERATION
LEVELING
AUTOMATIC
LEFT FRONT
RETRACT
AUTOMATIC
RIGHT REAR
5 AMP
#3 COMMON
#4 LR
#5 LF
#6 RF
#7 RR
WHITE
GREEN
RED
BLUE
BLACK
LEVEL
SENSOR
ON FOR MORE THAN TWO OUT OF EVERY FOUR MINUTES.
TO PREVENT DAMAGE FROM OVERHEATING, DO NOT HOLD SWITCH
EXTEND
HOLD
EXTEND
HOLD
HOLD
EXTEND
#3 COMMON
#7 RR
#5 LF
#6 RF
#4 LR
WORKING UNDER VEHICLE. MANUAL USE LIMITED TO 4 MIN. WITHOUT COOL DOWN
CONTROL PANEL
BLOCK FRAME SECURELY BEFORE CHANGING TIRES OR
LEFT FRONT
RETRACT
AUTOMATIC
LEVELING
AUTOMATIC
MASTER
EMERGENCY
CAUTION!
OFF
RETRACT
LEFT REAR
LOW
VOLTS
ON
MANUAL OPERATION
RIGHT REAR
RIGHT FRONT
RETRACT
RETRACT
HORIZONTAL
VERTICAL
5 AMP
SENSOR
LEVEL
BLACK
RED
BLUE
GREEN
WHITE
ON FOR MORE THAN TWO OUT OF EVERY FOUR MINUTES.
TO PREVENT DAMAGE FROM OVERHEATING, DO NOT HOLD SWITCH
EXTEND
HOLD
EXTEND
HOLD
HOLD
EXTEND
#3 COMMON
#7 RR
#5 LF
#6 RF
#4 LR
WORKING UNDER VEHICLE. MANUAL USE LIMITED TO 4 MIN. WITHOUT COOL DOWN
CONTROL PANEL
BLOCK FRAME SECURELY BEFORE CHANGING TIRES OR
LEFT FRONT
RETRACT
AUTOMATIC
LEVELING
AUTOMATIC
MASTER
EMERGENCY
CAUTION!
OFF
RETRACT
LEFT REAR
LOW
VOLTS
ON
MANUAL OPERATION
RIGHT REAR
RIGHT FRONT
RETRACT
RETRACT
HORIZONTAL
VERTICAL
5 AMP
SENSOR
LEVEL
BLACK
RED
BLUE
GREEN
WHITE
SOLID MOUNTING SURFACE
SPRINGS (3)
SENSING UNIT
4" DIA. X 3/4" THICK
SCREWS (3)
A
on, use a test light to ground pins 4, 5, 6, and 7. If the yellow lights come
on as they should, connect the test light to a +12 source. Check the
#3 pin (common). If the test light comes on the panel is ok, replace the
sensing unit. If the above test does not work, check the bulbs, then
replace the control panel if the bulbs are ok.
