Section
8. Wire Guidance
Toyota Orderpicker Model
Service Manual
Tests
1. Park the truck directly over the guide wire.
2. Turn the key switch OFF.
N
OTE
:
To test each sensor, you must enter a
horn code-one for the load sensor, one
for the tractor sensor. Once you enter
the code, you can test coils individually
in each sensor.
3.
Enter the horn code to test the tractor or
load sensors. To switch between tests,
turn the key switch OFF before entering
the other code.
Load
Sensor
Tractor Sensor
a. Hold down the horn button and t u r n the
key switch ON. Do not release the horn
yet.
b. Wait for the steer LEDs to stop flashing,
and release the horn button.
c. Press and release the horn button the
number of times a s the first digit of the
horn code. Each time you press the
button, a n addition BDI LED will light.
d. Wait for the BDI LEDs to t u r n off.
e. Press and release the horn button the
number of times in the second digit of
the horn code.
f. Wait for the BDI LEDs to t u r n off.
Near Wire
Coil
Figure
8- 18.
Operator
N
OTE
:
The steer LEDs indicate which coil is
being tested. See Figure 8- 18. To change
the coil being tested, press the horn
button. The battery LEDs indicate the
signal strength of each coil. See
Figure 8- 18.
4.
Check the near wire coil pairs and verify
the signal strengths are approximately the
same.
5. Check the
4
guidance coils (2 right, 2 left)
and verify the signal strengths are
approximately the same.
6.
Drive the truck diagonally across the guide
wire to monitor the guidance channels.
The signal strength should increase a s the
coil approaches the wire, and decrease a s
the coil moves farther away from the wire.
a. If one or more channels are low, re-learn
the guidance offsets (page -10) and
repeat the test.
b. If one or more channels are still low,
swap the sensor input connectors on the
filter card a t
and
If the low channel stays the same,
replace the filter card and re-learn the
guide wire frequency and offsets.
If the low channel stays the same after
replacing the filter card, replace the
steer controller.
c. If the low channel changes to the other
end of the truck, test the cable for
continuity shorts between wires, and
shorts to frame. Include the shield wire
a t pin 1 3 in
and PW2. If the cable
tests good, replace the sensor.
Drive away from the wire and operate all
truck functions, including travel, lift,
steering, horn and any optional equipment
while checking the guidance coils. If the
guidance signal increases due to the
operation of any of these functions, there
is a short to frame in the truck or electrical
noise generated by motors due to bad
brushes, worn commutators or faulty
suppressors. The sensor coils are picking
u p this noise.
8. Locate and repair the short to frame or
faulty component.
00700-CL222-05, 1
5 March 2005
Summary of Contents for 7BPUE15
Page 1: ...Serial Numbers Service Manual 80 001 and up 7BPUE15...
Page 2: ......
Page 5: ......
Page 58: ......
Page 144: ......
Page 299: ......
Page 301: ......
Page 346: ......
Page 358: ......
Page 386: ...Figure A 6 Cont Elec Schematic Sheet I Part 2 of 2 00700 CL222 05 15 March 2005...
Page 389: ......
Page 391: ...Hydraulic Schematic RES Figure A 9 Hydraulic Schematic 00700 CL222 05 15 March 2005...
Page 400: ......
Page 401: ...Printed in the USA...
